diff --git a/app-arch/fastjar/fastjar-0.98.bep b/app-arch/fastjar/fastjar-0.98.bep
index 58d382d98..d1d6e50f3 100644
--- a/app-arch/fastjar/fastjar-0.98.bep
+++ b/app-arch/fastjar/fastjar-0.98.bep
@@ -8,7 +8,7 @@ DEPEND=""
 BUILD {
 	cd fastjar-0.98
 	autoreconf -vfi
-	configure --prefix=/boot/common
+	configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/app-arch/tar/tar-1.22.bep b/app-arch/tar/tar-1.22.bep
index 9f4d4a475..c8bb7f207 100644
--- a/app-arch/tar/tar-1.22.bep
+++ b/app-arch/tar/tar-1.22.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND=""
 BUILD {
 	cd tar-1.22
-	./configure --prefix=/boot/common --sbindir=/boot/common/bin --libexecdir=/boot/common/bin
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` --sbindir=/boot/common/bin --libexecdir=/boot/common/bin
 	make
 }
 
diff --git a/app-crypt/gnupg/gnupg-1.4.11.bep b/app-crypt/gnupg/gnupg-1.4.11.bep
index e87250548..9e6bf53b1 100644
--- a/app-crypt/gnupg/gnupg-1.4.11.bep
+++ b/app-crypt/gnupg/gnupg-1.4.11.bep
@@ -9,7 +9,7 @@ BUILD {
 	cd gnupg-1.4.11
 	libtoolize --force --copy --install
 	autoconf
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/app-editors/vim/vim-7.2.bep b/app-editors/vim/vim-7.2.bep
index 6820d80aa..7b6d90625 100644
--- a/app-editors/vim/vim-7.2.bep
+++ b/app-editors/vim/vim-7.2.bep
@@ -10,7 +10,7 @@ BUILD {
 	cd src
 	make autoconf
 	cd ../
-	./configure --prefix=/boot/common --with-features=big
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` --with-features=big
 	make
 }
 
diff --git a/app-editors/vim/vim-7.3.bep b/app-editors/vim/vim-7.3.bep
index 659c6db35..52c00432d 100644
--- a/app-editors/vim/vim-7.3.bep
+++ b/app-editors/vim/vim-7.3.bep
@@ -10,7 +10,7 @@ BUILD {
 	cd src
 	make autoconf
 	cd ../
-	./configure --prefix=/boot/common --with-features=big
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` --with-features=big
 	make
 }
 
diff --git a/app-i18n/anthy/anthy-9100.bep b/app-i18n/anthy/anthy-9100.bep
index c2e5977d2..58d79885e 100644
--- a/app-i18n/anthy/anthy-9100.bep
+++ b/app-i18n/anthy/anthy-9100.bep
@@ -10,7 +10,7 @@ BUILD {
 	aclocal
 	autoconf
 	automake
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/app-text/libpaper/libpaper-1.1.23.bep b/app-text/libpaper/libpaper-1.1.23.bep
index e83f34acc..b26f9c558 100644
--- a/app-text/libpaper/libpaper-1.1.23.bep
+++ b/app-text/libpaper/libpaper-1.1.23.bep
@@ -11,7 +11,7 @@ BUILD {
 	aclocal
 #	automake
 	autoconf
-	./configure --prefix=/boot/common 
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` 
 	make
 }
 
diff --git a/dev-lang/php/php-5.3.4.bep b/dev-lang/php/php-5.3.4.bep
index 16a133e98..f2331a1d4 100644
--- a/dev-lang/php/php-5.3.4.bep
+++ b/dev-lang/php/php-5.3.4.bep
@@ -9,7 +9,7 @@ BUILD {
 	cd php-5.3.4
 	cat $(aclocal --print-ac-dir)/libtool.m4 > build/libtool.m4
 	autoreconf
-	./configure --prefix=/boot/common --enable-shared --enable-static
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` --enable-shared --enable-static
 	make
 }
 
diff --git a/dev-lang/ruby/ruby-1.9.1.bep b/dev-lang/ruby/ruby-1.9.1.bep
index f702dd419..bf3f3df22 100644
--- a/dev-lang/ruby/ruby-1.9.1.bep
+++ b/dev-lang/ruby/ruby-1.9.1.bep
@@ -8,7 +8,7 @@ DEPEND="dev-lang/ruby >= 1.8.7"
 BUILD {
 	cd ruby-1.9.1-p243
 	autoconf
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/dev-lang/swig/swig-1.3.40.bep b/dev-lang/swig/swig-1.3.40.bep
index 2c1200a25..2239e2fdb 100644
--- a/dev-lang/swig/swig-1.3.40.bep
+++ b/dev-lang/swig/swig-1.3.40.bep
@@ -8,7 +8,7 @@ DEPEND=""
 BUILD {
 	cd swig-1.3.40
 	libtoolize -fci
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/dev-lang/swig/swig-2.0.2.bep b/dev-lang/swig/swig-2.0.2.bep
index 9ccdcc6a7..df8d4a24e 100644
--- a/dev-lang/swig/swig-2.0.2.bep
+++ b/dev-lang/swig/swig-2.0.2.bep
@@ -8,7 +8,7 @@ DEPEND=""
 BUILD {
 	cd swig-2.0.2
 	libtoolize -fci
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/dev-lang/yasm/yasm-0.7.1.bep b/dev-lang/yasm/yasm-0.7.1.bep
index 511f0eeb9..d51d18b3e 100644
--- a/dev-lang/yasm/yasm-0.7.1.bep
+++ b/dev-lang/yasm/yasm-0.7.1.bep
@@ -9,7 +9,7 @@ BUILD {
 	cd yasm-0.7.1
 	cp /boot/common/share/libtool/config/config.guess config/.
        cp /boot/common/share/libtool/config/config.sub config/.
-       ./configure --prefix=/boot/common LDFLAGS=-L/boot/common/lib CPPFLAG=-I/boot/common/include
+       ./configure --prefix=`finddir B_COMMON_DIRECTORY` LDFLAGS=-L/boot/common/lib CPPFLAG=-I/boot/common/include
        make
 }
 
diff --git a/dev-lang/yasm/yasm-0.8.0.bep b/dev-lang/yasm/yasm-0.8.0.bep
index 7e395abba..2622e255b 100644
--- a/dev-lang/yasm/yasm-0.8.0.bep
+++ b/dev-lang/yasm/yasm-0.8.0.bep
@@ -9,7 +9,7 @@ BUILD {
 	cd yasm-0.8.0
 	cp /boot/common/share/libtool/config/config.guess config/.
 	cp /boot/common/share/libtool/config/config.sub config/.
-	./configure --prefix=/boot/common \
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` \
 	LDFLAGS=-L/boot/common/lib \
 	CPPFLAG=-I/boot/common/include
 	make
diff --git a/dev-libs/apr-util/apr-util-1.3.9.bep b/dev-libs/apr-util/apr-util-1.3.9.bep
index 2baa0d88e..b0472614f 100644
--- a/dev-libs/apr-util/apr-util-1.3.9.bep
+++ b/dev-libs/apr-util/apr-util-1.3.9.bep
@@ -35,7 +35,7 @@ BUILD {
 	autoconf --force
 	autoheader
 	cd ../..
-	./configure --prefix=/boot/common --with-apr=/boot/common/bin/apr-1-config
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` --with-apr=/boot/common/bin/apr-1-config
 	make
 }
 
diff --git a/dev-libs/boost/boost-1.42.0.bep b/dev-libs/boost/boost-1.42.0.bep
index 48b89b176..9884d876b 100644
--- a/dev-libs/boost/boost-1.42.0.bep
+++ b/dev-libs/boost/boost-1.42.0.bep
@@ -8,8 +8,8 @@ MESSAGE="This port only builds with gcc4. Use 'setgcc gcc4' before building."
 DEPEND=""
 BUILD {
 	cd boost_1_42_0
-	./bootstrap.sh --prefix=/boot/common
-	./bjam --prefix=/boot/common \
+	./bootstrap.sh --prefix=`finddir B_COMMON_DIRECTORY`
+	./bjam --prefix=`finddir B_COMMON_DIRECTORY` \
 	--libdir=/boot/common/lib \
 	--includedir=/boot/common/include \
 	variant=release \
diff --git a/dev-libs/expat/expat-2.0.1.bep b/dev-libs/expat/expat-2.0.1.bep
index 321be5839..55bedde4e 100644
--- a/dev-libs/expat/expat-2.0.1.bep
+++ b/dev-libs/expat/expat-2.0.1.bep
@@ -13,7 +13,7 @@ BUILD {
 	libtoolize --force --copy --install
 	aclocal -I conftools -I m4
 	autoconf
-	configure --prefix=/boot/common
+	configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/dev-libs/icu/icu-4.4.1.bep b/dev-libs/icu/icu-4.4.1.bep
index ebeb67534..3a3bdc891 100644
--- a/dev-libs/icu/icu-4.4.1.bep
+++ b/dev-libs/icu/icu-4.4.1.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND=""
 BUILD {
 	cd icu/source
-	CPPFLAGS="-D__STDC_ISO_10646__ -DU_CHARSET_IS_UTF8=1" ./configure --prefix=/boot/common
+	CPPFLAGS="-D__STDC_ISO_10646__ -DU_CHARSET_IS_UTF8=1" ./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/dev-libs/json-c/json-c-0.9.bep b/dev-libs/json-c/json-c-0.9.bep
index 38e0bc653..2672551fb 100644
--- a/dev-libs/json-c/json-c-0.9.bep
+++ b/dev-libs/json-c/json-c-0.9.bep
@@ -11,7 +11,7 @@ BUILD {
 	aclocal
 	autoconf
 	automake
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make 
 }
 
diff --git a/dev-libs/libedit/libedit-20090923.bep b/dev-libs/libedit/libedit-20090923.bep
index 11bcf6282..ccc9f99fd 100644
--- a/dev-libs/libedit/libedit-20090923.bep
+++ b/dev-libs/libedit/libedit-20090923.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND=""
 BUILD {
 	cd libedit-20090923-3.0
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/dev-libs/libevent/libevent-1.4.11.bep b/dev-libs/libevent/libevent-1.4.11.bep
index f206689a4..6747e2dc5 100644
--- a/dev-libs/libevent/libevent-1.4.11.bep
+++ b/dev-libs/libevent/libevent-1.4.11.bep
@@ -9,7 +9,7 @@ DEPEND=""
 BUILD {
 	cd libevent-1.4.11-stable
 	autoreconf -vfi
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/dev-libs/libevent/libevent-1.4.13.bep b/dev-libs/libevent/libevent-1.4.13.bep
index 9761eb13a..a7975f433 100644
--- a/dev-libs/libevent/libevent-1.4.13.bep
+++ b/dev-libs/libevent/libevent-1.4.13.bep
@@ -9,7 +9,7 @@ DEPEND=""
 BUILD {
 	cd libevent-1.4.13-stable
 	autoreconf -vfi
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/dev-libs/libffi/libffi-3.0.9.bep b/dev-libs/libffi/libffi-3.0.9.bep
index 13f509a02..1dfcf228a 100644
--- a/dev-libs/libffi/libffi-3.0.9.bep
+++ b/dev-libs/libffi/libffi-3.0.9.bep
@@ -12,7 +12,7 @@ BUILD {
 	aclocal
 	automake
 	autoconf
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/dev-libs/libgcrypt/libgcrypt-1.4.5.bep b/dev-libs/libgcrypt/libgcrypt-1.4.5.bep
index 6aaa5dbe6..549933e7a 100644
--- a/dev-libs/libgcrypt/libgcrypt-1.4.5.bep
+++ b/dev-libs/libgcrypt/libgcrypt-1.4.5.bep
@@ -8,7 +8,7 @@ BUILD {
 	cd libgcrypt-1.4.5
 	libtoolize --force --copy --install
 	autogen.sh
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/dev-libs/libgpg-error/libgpg-error-1.7.bep b/dev-libs/libgpg-error/libgpg-error-1.7.bep
index 48ba5d391..d51596db0 100644
--- a/dev-libs/libgpg-error/libgpg-error-1.7.bep
+++ b/dev-libs/libgpg-error/libgpg-error-1.7.bep
@@ -8,7 +8,7 @@ CHECKSUM_MD5="62c0d09d1e76c5b6da8fff92314c4665"
 BUILD {
 	cd libgpg-error-1.7
 	autoreconf -vfi -Im4
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/dev-libs/libiconv/libiconv-1.12.bep b/dev-libs/libiconv/libiconv-1.12.bep
index 0bee0e74a..1ace12b74 100644
--- a/dev-libs/libiconv/libiconv-1.12.bep
+++ b/dev-libs/libiconv/libiconv-1.12.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND=""
 BUILD {
 	cd libiconv-1.12
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/dev-libs/liboil/liboil-0.3.17.bep b/dev-libs/liboil/liboil-0.3.17.bep
index 65dd13295..a54643c8d 100644
--- a/dev-libs/liboil/liboil-0.3.17.bep
+++ b/dev-libs/liboil/liboil-0.3.17.bep
@@ -11,7 +11,7 @@ BUILD {
 	aclocal -I m4
 	autoconf
 	automake
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/dev-libs/libpcre/libpcre-8.00.bep b/dev-libs/libpcre/libpcre-8.00.bep
index f6fa33ae4..802fb405a 100644
--- a/dev-libs/libpcre/libpcre-8.00.bep
+++ b/dev-libs/libpcre/libpcre-8.00.bep
@@ -11,7 +11,7 @@ BUILD {
 	aclocal
 	autoconf
 	automake
-	./configure --prefix=/boot/common --enable-utf8 --enable-unicode-properties --with-pic
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` --enable-utf8 --enable-unicode-properties --with-pic
 	make
 	make check
 }
diff --git a/dev-libs/libpcre/libpcre-8.02.bep b/dev-libs/libpcre/libpcre-8.02.bep
index b7f1d8c3d..c5e5b701c 100644
--- a/dev-libs/libpcre/libpcre-8.02.bep
+++ b/dev-libs/libpcre/libpcre-8.02.bep
@@ -12,7 +12,7 @@ BUILD {
 	aclocal
 	autoconf
 	automake
-	./configure --prefix=/boot/common --enable-utf8 --enable-unicode-properties --with-pic --libdir=${LIBDIR}
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` --enable-utf8 --enable-unicode-properties --with-pic --libdir=${LIBDIR}
 	make
 	make check
 }
diff --git a/dev-libs/libpthread-stubs/libpthread-stubs-0.3.2.bep b/dev-libs/libpthread-stubs/libpthread-stubs-0.3.2.bep
index a1d057af0..7c8343203 100644
--- a/dev-libs/libpthread-stubs/libpthread-stubs-0.3.2.bep
+++ b/dev-libs/libpthread-stubs/libpthread-stubs-0.3.2.bep
@@ -9,7 +9,7 @@ BUILD {
 	cd libpthread-stubs-0.3
 	libtoolize --force --copy --install
 	autoreconf -i
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/dev-libs/libpthread-stubs/libpthread-stubs-0.3.bep b/dev-libs/libpthread-stubs/libpthread-stubs-0.3.bep
index a1d057af0..7c8343203 100644
--- a/dev-libs/libpthread-stubs/libpthread-stubs-0.3.bep
+++ b/dev-libs/libpthread-stubs/libpthread-stubs-0.3.bep
@@ -9,7 +9,7 @@ BUILD {
 	cd libpthread-stubs-0.3
 	libtoolize --force --copy --install
 	autoreconf -i
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/dev-libs/libsigc++/libsigc++-1.2.7.bep b/dev-libs/libsigc++/libsigc++-1.2.7.bep
index e0ffdce84..1decbb7ed 100644
--- a/dev-libs/libsigc++/libsigc++-1.2.7.bep
+++ b/dev-libs/libsigc++/libsigc++-1.2.7.bep
@@ -12,7 +12,7 @@ BUILD {
 	autoconf
 	automake
 	./autogen.sh
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make -i
 # There's name make file for tests and examples directories so just ignore (-i)
 # those errors and we really don't need either one
diff --git a/dev-libs/libsigc++/libsigc++-2.2.7.bep b/dev-libs/libsigc++/libsigc++-2.2.7.bep
index 1d1aea380..9a4accac8 100644
--- a/dev-libs/libsigc++/libsigc++-2.2.7.bep
+++ b/dev-libs/libsigc++/libsigc++-2.2.7.bep
@@ -10,7 +10,7 @@ BUILD {
 	libtoolize --force --copy
 	aclocal
 	sh autogen.sh
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/dev-libs/libunistring/libunistring-0.9.1.1.bep b/dev-libs/libunistring/libunistring-0.9.1.1.bep
index ab08efc41..0138a2f4e 100644
--- a/dev-libs/libunistring/libunistring-0.9.1.1.bep
+++ b/dev-libs/libunistring/libunistring-0.9.1.1.bep
@@ -9,7 +9,7 @@ BUILD {
 	cd libunistring-0.9.1.1
 	libtoolize --copy --force --install
 	./autogen.sh
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/dev-libs/libxdg-basedir/libxdg-basedir-1.1.1.bep b/dev-libs/libxdg-basedir/libxdg-basedir-1.1.1.bep
index 754d824a7..6e1d2a3c1 100644
--- a/dev-libs/libxdg-basedir/libxdg-basedir-1.1.1.bep
+++ b/dev-libs/libxdg-basedir/libxdg-basedir-1.1.1.bep
@@ -7,7 +7,7 @@ DEPEND=""
 CHECKSUM_MD5="7c64a28b08c8fdf6c8a95b0d5f1497b0"
 BUILD {
 	cd libxdg-basedir-1.1.1
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/dev-libs/libxml2/libxml2-2.7.3.bep b/dev-libs/libxml2/libxml2-2.7.3.bep
index afb8f8f5a..5a7a0d4df 100644
--- a/dev-libs/libxml2/libxml2-2.7.3.bep
+++ b/dev-libs/libxml2/libxml2-2.7.3.bep
@@ -11,7 +11,7 @@ BUILD {
 	aclocal
 	autoconf
 	automake
-	./configure --prefix=/boot/common --enable-ipv6=no LDFLAGS=-lnetwork
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` --enable-ipv6=no LDFLAGS=-lnetwork
 	make
 }
 
diff --git a/dev-libs/libxml2/libxml2-2.7.6.bep b/dev-libs/libxml2/libxml2-2.7.6.bep
index bb3ed9016..aeb674eb8 100644
--- a/dev-libs/libxml2/libxml2-2.7.6.bep
+++ b/dev-libs/libxml2/libxml2-2.7.6.bep
@@ -11,7 +11,7 @@ BUILD {
 	aclocal
 	autoconf
 	automake
-	./configure --prefix=/boot/common --enable-ipv6=no LDFLAGS="-lnetwork -L/boot/common/lib"
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` --enable-ipv6=no LDFLAGS="-lnetwork -L/boot/common/lib"
 	make
 }
 
diff --git a/dev-libs/libxml2/libxml2-2.7.7.bep b/dev-libs/libxml2/libxml2-2.7.7.bep
index 61772d902..f5205acd0 100644
--- a/dev-libs/libxml2/libxml2-2.7.7.bep
+++ b/dev-libs/libxml2/libxml2-2.7.7.bep
@@ -11,7 +11,7 @@ BUILD {
 	aclocal
 	autoconf
 	automake
-	./configure --prefix=/boot/common --enable-ipv6=no LDFLAGS="-lnetwork -L/boot/common/lib"
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` --enable-ipv6=no LDFLAGS="-lnetwork -L/boot/common/lib"
 	make
 }
 
diff --git a/dev-libs/libxslt/libxslt-1.1.26.bep b/dev-libs/libxslt/libxslt-1.1.26.bep
index db8fc9fcb..7d684433d 100644
--- a/dev-libs/libxslt/libxslt-1.1.26.bep
+++ b/dev-libs/libxslt/libxslt-1.1.26.bep
@@ -11,7 +11,7 @@ BUILD {
 	aclocal
 	autoconf
 	automake
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/dev-libs/openssl/openssl-0.9.8l.bep b/dev-libs/openssl/openssl-0.9.8l.bep
index 57fc1b13a..1e9cdad01 100644
--- a/dev-libs/openssl/openssl-0.9.8l.bep
+++ b/dev-libs/openssl/openssl-0.9.8l.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND=""
 BUILD {
 	cd openssl-0.9.8l
-	config --prefix=/boot/common zlib shared
+	config --prefix=`finddir B_COMMON_DIRECTORY` zlib shared
 	make
 }
 
diff --git a/dev-libs/openssl/openssl-0.9.8m.bep b/dev-libs/openssl/openssl-0.9.8m.bep
index b13a14a49..1048d6344 100644
--- a/dev-libs/openssl/openssl-0.9.8m.bep
+++ b/dev-libs/openssl/openssl-0.9.8m.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND="sys-libs/zlib >= 1.2.3"
 BUILD {
 	cd openssl-0.9.8m
-	config --prefix=/boot/common zlib shared
+	config --prefix=`finddir B_COMMON_DIRECTORY` zlib shared
 	make
 }
 
diff --git a/dev-libs/openssl/openssl-1.0.0.bep b/dev-libs/openssl/openssl-1.0.0.bep
index d99268620..79c4511c3 100644
--- a/dev-libs/openssl/openssl-1.0.0.bep
+++ b/dev-libs/openssl/openssl-1.0.0.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND="sys-libs/zlib >= 1.2.3"
 BUILD {
 	cd openssl-1.0.0
-	config --prefix=/boot/common zlib shared
+	config --prefix=`finddir B_COMMON_DIRECTORY` zlib shared
 	make
 }
 
diff --git a/dev-libs/openssl/openssl-1.0.0a.bep b/dev-libs/openssl/openssl-1.0.0a.bep
index 831cba260..a0cd88932 100644
--- a/dev-libs/openssl/openssl-1.0.0a.bep
+++ b/dev-libs/openssl/openssl-1.0.0a.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND="sys-libs/zlib >= 1.2.3"
 BUILD {
 	cd openssl-1.0.0a
-	config --prefix=/boot/common zlib shared
+	config --prefix=`finddir B_COMMON_DIRECTORY` zlib shared
 	make
 }
 
diff --git a/dev-libs/openssl/openssl-1.0.0c.bep b/dev-libs/openssl/openssl-1.0.0c.bep
index 62f55d87c..81b78579e 100644
--- a/dev-libs/openssl/openssl-1.0.0c.bep
+++ b/dev-libs/openssl/openssl-1.0.0c.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND="sys-libs/zlib >= 1.2.3"
 BUILD {
 	cd openssl-1.0.0c
-	config --prefix=/boot/common zlib shared
+	config --prefix=`finddir B_COMMON_DIRECTORY` zlib shared
 	make
 }
 
diff --git a/dev-libs/popt/popt-1.16.bep b/dev-libs/popt/popt-1.16.bep
index 8847c296d..1ff0dc764 100644
--- a/dev-libs/popt/popt-1.16.bep
+++ b/dev-libs/popt/popt-1.16.bep
@@ -12,7 +12,7 @@ BUILD {
 	aclocal -I m4
 	autoconf
 	automake
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/dev-libs/uriparser/uriparser-0.7.5.bep b/dev-libs/uriparser/uriparser-0.7.5.bep
index aa5ff4692..c808642ab 100644
--- a/dev-libs/uriparser/uriparser-0.7.5.bep
+++ b/dev-libs/uriparser/uriparser-0.7.5.bep
@@ -11,7 +11,7 @@ BUILD {
 	aclocal
 	autoconf
 	automake
-	./configure --prefix=/boot/common -disable-test --disable-doc
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` -disable-test --disable-doc
 	make
 }
 
diff --git a/dev-libs/zziplib/zziplib-0.13.59.bep b/dev-libs/zziplib/zziplib-0.13.59.bep
index 1b896a8eb..358d40b9b 100644
--- a/dev-libs/zziplib/zziplib-0.13.59.bep
+++ b/dev-libs/zziplib/zziplib-0.13.59.bep
@@ -8,7 +8,7 @@ BUILD {
 	cd zziplib-0.13.59
 	libtoolize --force --copy --install
 	autoreconf -i
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/dev-util/bakefile/bakefile-0.2.8.bep b/dev-util/bakefile/bakefile-0.2.8.bep
index b50fe9a19..e668d3760 100644
--- a/dev-util/bakefile/bakefile-0.2.8.bep
+++ b/dev-util/bakefile/bakefile-0.2.8.bep
@@ -10,7 +10,7 @@ BUILD {
 	touch ./ChangeLog
 	libtoolize --force --copy --install
 	autoreconf -i
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/dev-util/ccache/ccache-3.0.1.bep b/dev-util/ccache/ccache-3.0.1.bep
index 0f7300168..a91f8d4e2 100644
--- a/dev-util/ccache/ccache-3.0.1.bep
+++ b/dev-util/ccache/ccache-3.0.1.bep
@@ -7,7 +7,7 @@ DEPEND=""
 CHECKSUM_MD5="223449f7891e5d6a15b25100eca5cca4"
 BUILD {
 	cd ccache-3.0.1
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 INSTALL {
diff --git a/dev-util/cmake/cmake-2.6.4.bep b/dev-util/cmake/cmake-2.6.4.bep
index 1a6d64807..58ad39107 100644
--- a/dev-util/cmake/cmake-2.6.4.bep
+++ b/dev-util/cmake/cmake-2.6.4.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND=""
 BUILD {
 	cd cmake-2.6.4
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/dev-util/cmake/cmake-2.8.0.bep b/dev-util/cmake/cmake-2.8.0.bep
index a2a4ae1d2..f35325ced 100644
--- a/dev-util/cmake/cmake-2.8.0.bep
+++ b/dev-util/cmake/cmake-2.8.0.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND=""
 BUILD {
 	cd cmake-2.8.0
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/dev-util/cmake/cmake-2.8.1.bep b/dev-util/cmake/cmake-2.8.1.bep
index 7e2235272..461a14f7b 100644
--- a/dev-util/cmake/cmake-2.8.1.bep
+++ b/dev-util/cmake/cmake-2.8.1.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND=""
 BUILD {
 	cd cmake-2.8.1
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/dev-util/cmake/cmake-2.8.2.bep b/dev-util/cmake/cmake-2.8.2.bep
index 691b688e0..4d8645f05 100644
--- a/dev-util/cmake/cmake-2.8.2.bep
+++ b/dev-util/cmake/cmake-2.8.2.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND=""
 BUILD {
 	cd cmake-2.8.2
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/dev-util/cmake/cmake-2.8.3.bep b/dev-util/cmake/cmake-2.8.3.bep
index 42248f1db..aa753fa5a 100644
--- a/dev-util/cmake/cmake-2.8.3.bep
+++ b/dev-util/cmake/cmake-2.8.3.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND=""
 BUILD {
 	cd cmake-2.8.3
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/dev-util/cppunit/cppunit-1.12.1.bep b/dev-util/cppunit/cppunit-1.12.1.bep
index 0db0c1cad..b6acee2c0 100644
--- a/dev-util/cppunit/cppunit-1.12.1.bep
+++ b/dev-util/cppunit/cppunit-1.12.1.bep
@@ -9,7 +9,7 @@ BUILD {
 	cd cppunit-1.12.1
 	libtoolize --force --copy --install
 	autoreconf -i
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
@@ -17,4 +17,5 @@ INSTALL {
 	cd cppunit-1.12.1
 	make install
 }
+
 LICENSE="GNU LGPL v2.1"
diff --git a/dev-util/cscope/cscope-15.7a.bep b/dev-util/cscope/cscope-15.7a.bep
index c1a5c5651..de9159eb5 100644
--- a/dev-util/cscope/cscope-15.7a.bep
+++ b/dev-util/cscope/cscope-15.7a.bep
@@ -8,7 +8,7 @@ DEPEND=""
 BUILD {
 	cd cscope-15.7a
 	autoreconf -fvi
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/dev-util/diffstat/diffstat-1.51.bep b/dev-util/diffstat/diffstat-1.51.bep
index bff1e6fa2..d3a73f46f 100644
--- a/dev-util/diffstat/diffstat-1.51.bep
+++ b/dev-util/diffstat/diffstat-1.51.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND=""
 BUILD {
 	cd diffstat-1.51
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/dev-util/global/global-5.8.1.bep b/dev-util/global/global-5.8.1.bep
index 60359156b..3ce52f5db 100644
--- a/dev-util/global/global-5.8.1.bep
+++ b/dev-util/global/global-5.8.1.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND=""
 BUILD {
 	cd global-5.8.1
-	./configure --prefix=/boot/common --with-exuberant-ctags=/bin/ctags
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` --with-exuberant-ctags=/bin/ctags
 	make
 }
 
diff --git a/dev-util/global/global-5.8.2.bep b/dev-util/global/global-5.8.2.bep
index ffc53cb71..a71eeb70e 100644
--- a/dev-util/global/global-5.8.2.bep
+++ b/dev-util/global/global-5.8.2.bep
@@ -8,7 +8,7 @@ DEPEND=""
 BUILD {
 	cd global-5.8.2
 	autoreconf -fi
-	./configure --prefix=/boot/common --with-exuberant-ctags=/bin/ctags
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` --with-exuberant-ctags=/bin/ctags
 	make
 }
 
diff --git a/dev-util/global/global-5.8.bep b/dev-util/global/global-5.8.bep
index 2649f36eb..0bb368f2f 100644
--- a/dev-util/global/global-5.8.bep
+++ b/dev-util/global/global-5.8.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND=""
 BUILD {
 	cd global-5.8
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/dev-util/global/global-5.9.1.bep b/dev-util/global/global-5.9.1.bep
index 4a89f4f80..3c68e9402 100644
--- a/dev-util/global/global-5.9.1.bep
+++ b/dev-util/global/global-5.9.1.bep
@@ -8,7 +8,7 @@ DEPEND=""
 BUILD {
 	cd global-5.9.1
 	autoreconf -fi
-	./configure --prefix=/boot/common --with-exuberant-ctags=/bin/ctags --with-posix-sort=/bin/sort
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` --with-exuberant-ctags=/bin/ctags --with-posix-sort=/bin/sort
 	make
 }
 
diff --git a/dev-util/global/global-5.9.bep b/dev-util/global/global-5.9.bep
index 0027af52c..4a5e51e40 100644
--- a/dev-util/global/global-5.9.bep
+++ b/dev-util/global/global-5.9.bep
@@ -8,7 +8,7 @@ DEPEND=""
 BUILD {
 	cd global-5.9
 	autoreconf -fi
-	./configure --prefix=/boot/common --with-exuberant-ctags=/bin/ctags --with-posix-sort=/bin/sort
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` --with-exuberant-ctags=/bin/ctags --with-posix-sort=/bin/sort
 	make
 }
 
diff --git a/dev-util/gtk-doc/gtk-doc-1.15.bep b/dev-util/gtk-doc/gtk-doc-1.15.bep
index 1c9f24f98..dbb09f8c3 100644
--- a/dev-util/gtk-doc/gtk-doc-1.15.bep
+++ b/dev-util/gtk-doc/gtk-doc-1.15.bep
@@ -8,7 +8,7 @@ DEPEND="pkgconfig >= 0.23
 		dev-libs/libxslt >= 1.1.26"
 BUILD {
 	cd gtk-doc-1.15
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/dev-util/idutils/idutils-20061208.bep b/dev-util/idutils/idutils-20061208.bep
index a2d05bed4..680bf7356 100644
--- a/dev-util/idutils/idutils-20061208.bep
+++ b/dev-util/idutils/idutils-20061208.bep
@@ -8,7 +8,7 @@ DEPEND=""
 BUILD {
 	cd idutils-cvs
 	libtoolize --force --copy --install
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/dev-util/idutils/idutils-4.2.bep b/dev-util/idutils/idutils-4.2.bep
index 45cff03e4..137fb9d96 100644
--- a/dev-util/idutils/idutils-4.2.bep
+++ b/dev-util/idutils/idutils-4.2.bep
@@ -8,7 +8,7 @@ DEPEND=""
 BUILD {
 	cd idutils-4.2
 	libtoolize --force --copy --install
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/dev-util/intltool/intltool-0.40.6.bep b/dev-util/intltool/intltool-0.40.6.bep
index b1628d954..bda332787 100644
--- a/dev-util/intltool/intltool-0.40.6.bep
+++ b/dev-util/intltool/intltool-0.40.6.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND=""
 BUILD {
 	cd intltool-0.40.6
-	configure --prefix=/boot/common
+	configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/dev-util/patchutils/patchutils-0.3.1.bep b/dev-util/patchutils/patchutils-0.3.1.bep
index 56f39f7e5..1e5a0f704 100644
--- a/dev-util/patchutils/patchutils-0.3.1.bep
+++ b/dev-util/patchutils/patchutils-0.3.1.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND=""
 BUILD {
 	cd patchutils-0.3.1
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/dev-util/pkgconfig/pkgconfig-0.23.bep b/dev-util/pkgconfig/pkgconfig-0.23.bep
index d83c89094..2a71b584d 100644
--- a/dev-util/pkgconfig/pkgconfig-0.23.bep
+++ b/dev-util/pkgconfig/pkgconfig-0.23.bep
@@ -18,7 +18,7 @@ BUILD {
 	autoreconf	
 	automake
 	autoconf
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/dev-util/quilt/quilt-0.48.bep b/dev-util/quilt/quilt-0.48.bep
index 42b700f47..ec42bbf25 100644
--- a/dev-util/quilt/quilt-0.48.bep
+++ b/dev-util/quilt/quilt-0.48.bep
@@ -9,7 +9,7 @@ DEPEND="dev-util/diffstat >= 1.51
 BUILD {
 	cd quilt-0.48
 	autoconf
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make EDITOR=nano
 }
 
diff --git a/dev-vcs/git/git-1.6.5.3.bep b/dev-vcs/git/git-1.6.5.3.bep
index 53a818c0f..85decc6d6 100644
--- a/dev-vcs/git/git-1.6.5.3.bep
+++ b/dev-vcs/git/git-1.6.5.3.bep
@@ -10,7 +10,7 @@ BUILD {
 	libtoolize --force --copy --install
 	aclocal
 	autoconf
-	./configure --prefix=/boot/common --enable-pthreads=""
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` --enable-pthreads=""
 	make prefix=/boot/common NO_R_TO_GCC_LINKER=YesPlease \
 	NO_C99_FORMAT=YesPlease \
 	NO_ST_BLOCKS_IN_STRUCT_STAT=YesPlease \
diff --git a/dev-vcs/git/git-1.7.0.1.bep b/dev-vcs/git/git-1.7.0.1.bep
index e4a7d25d2..9faf799d5 100644
--- a/dev-vcs/git/git-1.7.0.1.bep
+++ b/dev-vcs/git/git-1.7.0.1.bep
@@ -10,7 +10,7 @@ BUILD {
 #	libtoolize --force --copy --install
 #	aclocal
 #	autoconf
-	./configure --prefix=/boot/common --enable-pthreads=""
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` --enable-pthreads=""
 	make prefix=/boot/common \
 	NO_R_TO_GCC_LINKER=YesPlease \
 	NO_C99_FORMAT=YesPlease \
diff --git a/dev-vcs/git/git-1.7.0.4.bep b/dev-vcs/git/git-1.7.0.4.bep
index 26c90e674..68236f29d 100644
--- a/dev-vcs/git/git-1.7.0.4.bep
+++ b/dev-vcs/git/git-1.7.0.4.bep
@@ -9,7 +9,7 @@ BUILD {
 	cd git-1.7.0.4
 	autoconf
 	CFLAGS="-I/boot/common/include" LDFLAGS="-L/boot/common/lib -L/boot/system/lib -lbsd -lnetwork" \
-	./configure --prefix=/boot/common --with-editor=nano --enable-pthreads="-lroot" \
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` --with-editor=nano --enable-pthreads="-lroot" \
 	--with-perl=/boot/common/bin/perl --with-python=/boot/common/bin/python --without-tcltk
 	make strip
 }
diff --git a/dev-vcs/git/git-1.7.0.5.bep b/dev-vcs/git/git-1.7.0.5.bep
index 7c8141dd0..f22a3ce0c 100644
--- a/dev-vcs/git/git-1.7.0.5.bep
+++ b/dev-vcs/git/git-1.7.0.5.bep
@@ -9,7 +9,7 @@ BUILD {
 	cd git-1.7.0.5
 	autoconf
 	CFLAGS="-I/boot/common/include" LDFLAGS="-L/boot/common/lib -L/boot/system/lib -lbsd -lnetwork" \
-	./configure --prefix=/boot/common --with-editor=nano --enable-pthreads="-lroot" \
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` --with-editor=nano --enable-pthreads="-lroot" \
 	--with-perl=/boot/common/bin/perl --with-python=/boot/common/bin/python --without-tcltk
 	make strip
 }
diff --git a/dev-vcs/git/git-1.7.1.bep b/dev-vcs/git/git-1.7.1.bep
index 546588724..f9b70d4ec 100644
--- a/dev-vcs/git/git-1.7.1.bep
+++ b/dev-vcs/git/git-1.7.1.bep
@@ -10,7 +10,7 @@ BUILD {
 	cd git-1.7.1
 	autoconf
 	CFLAGS="-I/boot/common/include" LDFLAGS="-L/boot/common/lib -L/boot/system/lib -lbsd -lnetwork" \
-	./configure --prefix=/boot/common --with-editor=nano --enable-pthreads="-lroot" \
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` --with-editor=nano --enable-pthreads="-lroot" \
 	--with-perl=/boot/common/bin/perl --with-python=/boot/common/bin/python --without-tcltk
 	make strip
 }
diff --git a/dev-vcs/git/git-1.7.3.1.bep b/dev-vcs/git/git-1.7.3.1.bep
index 69550c83c..d54bfa965 100644
--- a/dev-vcs/git/git-1.7.3.1.bep
+++ b/dev-vcs/git/git-1.7.3.1.bep
@@ -10,7 +10,7 @@ BUILD {
 	cd git-1.7.3.1
 	autoconf
 	CFLAGS="-I/boot/common/include" LDFLAGS="-L/boot/common/lib -L/boot/system/lib -lbsd -lnetwork" \
-	./configure --prefix=/boot/common --with-editor=nano --enable-pthreads="-lroot" \
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` --with-editor=nano --enable-pthreads="-lroot" \
 	--with-perl=/boot/common/bin/perl --with-python=/boot/common/bin/python --without-tcltk
 	make strip
 }
diff --git a/dev-vcs/mercurial/mercurial-1.4.2.bep b/dev-vcs/mercurial/mercurial-1.4.2.bep
index c90bf3ed7..00f938832 100644
--- a/dev-vcs/mercurial/mercurial-1.4.2.bep
+++ b/dev-vcs/mercurial/mercurial-1.4.2.bep
@@ -12,7 +12,7 @@ BUILD {
 
 INSTALL {
 	cd mercurial-1.4.2
-	python setup.py install --prefix=/boot/common
+	python setup.py install --prefix=`finddir B_COMMON_DIRECTORY`
 }
 LICENSE="GNU GPL v2"
 COPYRIGHT="2005-2010 Matt Mackall et al. "
diff --git a/dev-vcs/subversion/subversion-1.6.11.bep b/dev-vcs/subversion/subversion-1.6.11.bep
index 279a7d6c3..b5705010e 100644
--- a/dev-vcs/subversion/subversion-1.6.11.bep
+++ b/dev-vcs/subversion/subversion-1.6.11.bep
@@ -10,7 +10,7 @@ BUILD {
 	libtoolize --force --copy --install
 	aclocal -I build -I build/ac-macros
 	autogen.sh
-	./configure --prefix=/boot/common \
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` \
 	--with-apr=/boot/common/bin/apr-1-config \
 	--with-apr-util=/boot/common/bin/apu-1-config \ 
 	--with-neon=/boot/common \ 
diff --git a/dev-vcs/subversion/subversion-1.6.12.bep b/dev-vcs/subversion/subversion-1.6.12.bep
index 61f09eac1..7a31459a0 100644
--- a/dev-vcs/subversion/subversion-1.6.12.bep
+++ b/dev-vcs/subversion/subversion-1.6.12.bep
@@ -11,7 +11,7 @@ BUILD {
 	aclocal -I build -I build/ac-macros
 	autoconf
 	./autogen.sh
-	./configure --prefix=/boot/common \
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` \
 	--with-apr=/boot/common/bin/apr-1-config \
 	--with-apr-util=/boot/common/bin/apu-1-config \
 	--with-neon=/boot/common \
diff --git a/dev-vcs/subversion/subversion-1.6.13.bep b/dev-vcs/subversion/subversion-1.6.13.bep
index b0d994536..6312f5057 100644
--- a/dev-vcs/subversion/subversion-1.6.13.bep
+++ b/dev-vcs/subversion/subversion-1.6.13.bep
@@ -11,7 +11,7 @@ BUILD {
 	aclocal -I build -I build/ac-macros
 	autoconf
 	./autogen.sh
-	./configure --prefix=/boot/common \
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` \
 	--with-apr=/boot/common/bin/apr-1-config \
 	--with-apr-util=/boot/common/bin/apu-1-config \
 	--with-neon=/boot/common \
diff --git a/dev-vcs/subversion/subversion-1.6.15.bep b/dev-vcs/subversion/subversion-1.6.15.bep
index cd8ab88ed..20fa06ead 100644
--- a/dev-vcs/subversion/subversion-1.6.15.bep
+++ b/dev-vcs/subversion/subversion-1.6.15.bep
@@ -11,7 +11,7 @@ BUILD {
 	aclocal -I build -I build/ac-macros
 	autoconf
 	./autogen.sh
-	./configure --prefix=/boot/common \
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` \
 	--with-apr=/boot/common/bin/apr-1-config \
 	--with-apr-util=/boot/common/bin/apu-1-config \
 	--with-neon=/boot/common \
diff --git a/dev-vcs/subversion/subversion-1.6.6.bep b/dev-vcs/subversion/subversion-1.6.6.bep
index 710316480..febecf35a 100644
--- a/dev-vcs/subversion/subversion-1.6.6.bep
+++ b/dev-vcs/subversion/subversion-1.6.6.bep
@@ -10,7 +10,7 @@ BUILD {
 	libtoolize --force --copy --install
 	aclocal -I build -I build/ac-macros
 	autogen.sh
-	./configure --prefix=/boot/common --with-apr=/boot/common/bin/apr-1-config --with-apr-util=/boot/common/bin/apu-1-config --with-neon=/boot/common --with-editor=lpe --with-zlib=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` --with-apr=/boot/common/bin/apr-1-config --with-apr-util=/boot/common/bin/apu-1-config --with-neon=/boot/common --with-editor=lpe --with-zlib=/boot/common
 	make
 }
 
diff --git a/dev-vcs/subversion/subversion-1.6.9.bep b/dev-vcs/subversion/subversion-1.6.9.bep
index 033d85d5b..ca3eccaf1 100644
--- a/dev-vcs/subversion/subversion-1.6.9.bep
+++ b/dev-vcs/subversion/subversion-1.6.9.bep
@@ -10,7 +10,7 @@ BUILD {
 	libtoolize --force --copy --install
 	aclocal -I build -I build/ac-macros
 	autogen.sh
-	./configure --prefix=/boot/common --with-apr=/boot/common/bin/apr-1-config --with-apr-util=/boot/common/bin/apu-1-config --with-neon=/boot/common --with-editor=nano --with-zlib=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` --with-apr=/boot/common/bin/apr-1-config --with-apr-util=/boot/common/bin/apu-1-config --with-neon=/boot/common --with-editor=nano --with-zlib=/boot/common
 	make
 }
 
diff --git a/dev-vcs/subversion/subversion-1.7.xx-svn.bep b/dev-vcs/subversion/subversion-1.7.xx-svn.bep
index 6519e2d3d..8770ae519 100644
--- a/dev-vcs/subversion/subversion-1.7.xx-svn.bep
+++ b/dev-vcs/subversion/subversion-1.7.xx-svn.bep
@@ -11,7 +11,7 @@ BUILD {
 	aclocal -I build -I build/ac-macros
 	autoconf
 	./autogen.sh
-	./configure --prefix=/boot/common \
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` \
 	--with-apr=/boot/common/bin/apr-1-config \
 	--with-apr-util=/boot/common/bin/apu-1-config \
 	--with-neon=/boot/common \
diff --git a/dev-vcs/tig/tig-0.16.bep b/dev-vcs/tig/tig-0.16.bep
index bbf3db4da..cbd93d145 100644
--- a/dev-vcs/tig/tig-0.16.bep
+++ b/dev-vcs/tig/tig-0.16.bep
@@ -9,7 +9,7 @@ BUILD {
 	cd tig-0.16
 	libtoolize --force --copy --install
 	autoreconf -i
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/games-action/bzflag/bzflag-2.0.14.bep b/games-action/bzflag/bzflag-2.0.14.bep
index c785dfb05..b169244d9 100644
--- a/games-action/bzflag/bzflag-2.0.14.bep
+++ b/games-action/bzflag/bzflag-2.0.14.bep
@@ -10,7 +10,7 @@ BUILD {
 	mkdir -p m4
 	libtoolize --force --copy --install
 	./autogen.sh
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/games-action/cylindrix/cylindrix-1.0.bep b/games-action/cylindrix/cylindrix-1.0.bep
index 5dca733d2..579964e86 100644
--- a/games-action/cylindrix/cylindrix-1.0.bep
+++ b/games-action/cylindrix/cylindrix-1.0.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND="media-libs/allegro >= 4.4.1.1"
 BUILD {
 	cd cylindrix
-	CFLAGS='-O2' ./configure --prefix=/boot/common
+	CFLAGS='-O2' ./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/gnome-base/gnome-common/gnome-common-2.28.bep b/gnome-base/gnome-common/gnome-common-2.28.bep
index 0a9982fe7..b5cdf1967 100644
--- a/gnome-base/gnome-common/gnome-common-2.28.bep
+++ b/gnome-base/gnome-common/gnome-common-2.28.bep
@@ -7,7 +7,7 @@ DEPEND=""
 BUILD {
         cd gnome-common-2.28
 		./autogen.sh
-        ./configure --prefix=/boot/common
+        ./configure --prefix=`finddir B_COMMON_DIRECTORY`
         make
 }
 	
diff --git a/gnome-extra/libgsf/libgsf-1.14.18.bep b/gnome-extra/libgsf/libgsf-1.14.18.bep
index 1f585b8a8..f91ef5d09 100644
--- a/gnome-extra/libgsf/libgsf-1.14.18.bep
+++ b/gnome-extra/libgsf/libgsf-1.14.18.bep
@@ -13,7 +13,7 @@ BUILD {
 	cd libgsf-1.14.18
 	libtoolize --force --copy --install
 	autoreconf -i
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 	cd thumbnailer
 	make
diff --git a/media-gfx/flam3/flam3-3.0.bep b/media-gfx/flam3/flam3-3.0.bep
index e5faf7032..3f3aa7c32 100644
--- a/media-gfx/flam3/flam3-3.0.bep
+++ b/media-gfx/flam3/flam3-3.0.bep
@@ -14,7 +14,7 @@ BUILD {
 	fi
 	libtoolize --force --copy --install
 	autoreconf -i
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/media-gfx/fontforge/fontforge-201005010.bep b/media-gfx/fontforge/fontforge-201005010.bep
index 1cee88b67..d4cadf981 100644
--- a/media-gfx/fontforge/fontforge-201005010.bep
+++ b/media-gfx/fontforge/fontforge-201005010.bep
@@ -10,7 +10,7 @@ BUILD {
 	libtoolize --force --copy --install
 	aclocal
 	autoconf
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/media-gfx/graphviz/graphviz-2.24.bep b/media-gfx/graphviz/graphviz-2.24.bep
index 72d6651e1..dd88d12a5 100644
--- a/media-gfx/graphviz/graphviz-2.24.bep
+++ b/media-gfx/graphviz/graphviz-2.24.bep
@@ -14,7 +14,7 @@ BUILD {
 	cp /boot/common/share/libtool/config/config.sub lib/gd/config
 	cp /boot/common/share/libtool/config/config.sub libltdl
 	autoconf
-	./configure --prefix=/boot/common --disable-shared --enable-static CFLAGS="-O0" LDFLAGS="-L/boot/common/lib -liconv"
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` --disable-shared --enable-static CFLAGS="-O0" LDFLAGS="-L/boot/common/lib -liconv"
 	make
 }
 
diff --git a/media-gfx/graphviz/graphviz-2.26.3.bep b/media-gfx/graphviz/graphviz-2.26.3.bep
index 633cb5473..9d0aed05e 100644
--- a/media-gfx/graphviz/graphviz-2.26.3.bep
+++ b/media-gfx/graphviz/graphviz-2.26.3.bep
@@ -9,7 +9,7 @@ BUILD {
 	cd graphviz-2.26.3
 	libtoolize --force --copy --install
 	autoconf
-	./configure --prefix=/boot/common --enable-shared --disable-perl 
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` --enable-shared --disable-perl 
 	make
 }
 
@@ -17,5 +17,6 @@ INSTALL {
 	cd graphviz-2.26.3
 	make install
 }
+
 LICENSE="CPL v1.0"
 COPYRIGHT="1994-2010 AT&T Corp."
diff --git a/media-libs/fontconfig/fontconfig-2.8.0.bep b/media-libs/fontconfig/fontconfig-2.8.0.bep
index 12c084014..b8ff7d119 100644
--- a/media-libs/fontconfig/fontconfig-2.8.0.bep
+++ b/media-libs/fontconfig/fontconfig-2.8.0.bep
@@ -18,7 +18,7 @@ BUILD {
 	FONTS_DIR3=`finddir B_BEOS_FONTS_DIRECTORY`
 	FONTS_DIR4=`finddir B_USER_FONTS_DIRECTORY`
 	CACHE_DIR=`finddir B_USER_CACHE_DIRECTORY`
-	./configure --prefix=/boot/common --enable-libxml2 --with-default-fonts=${FONTS_DIR} --with-add-fonts=${FONTS_DIR2},${FONTS_DIR3},${FONTS_DIR4} --with-cache-dir=${CACHE_DIR}
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` --enable-libxml2 --with-default-fonts=${FONTS_DIR} --with-add-fonts=${FONTS_DIR2},${FONTS_DIR3},${FONTS_DIR4} --with-cache-dir=${CACHE_DIR}
 	make
 }
 
diff --git a/media-libs/freealut/freealut-1.1.0.bep b/media-libs/freealut/freealut-1.1.0.bep
index f9c6fdb51..33cdd225b 100644
--- a/media-libs/freealut/freealut-1.1.0.bep
+++ b/media-libs/freealut/freealut-1.1.0.bep
@@ -11,7 +11,7 @@ BUILD {
 	cd freealut-1.1.0
 	libtoolize --force --copy --install
 	./autogen.sh
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/media-libs/freetype/freetype-2.3.11.bep b/media-libs/freetype/freetype-2.3.11.bep
index f8a474fcb..d3cf73bb5 100644
--- a/media-libs/freetype/freetype-2.3.11.bep
+++ b/media-libs/freetype/freetype-2.3.11.bep
@@ -8,7 +8,7 @@ DEPEND=""
 BUILD {
 	cd freetype-2.3.11
 	sh ./autogen.sh
-	./configure --prefix=/boot/common --includedir=/boot/develop/headers/3rdparty
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` --includedir=/boot/develop/headers/3rdparty
 	make
 }
 
diff --git a/media-libs/freetype/freetype-2.4.2.bep b/media-libs/freetype/freetype-2.4.2.bep
index 06afc9334..a8b96329f 100644
--- a/media-libs/freetype/freetype-2.4.2.bep
+++ b/media-libs/freetype/freetype-2.4.2.bep
@@ -8,7 +8,7 @@ DEPEND=""
 BUILD {
 	cd freetype-2.4.2
 	sh ./autogen.sh
-	./configure --prefix=/boot/common --includedir=/boot/develop/headers/3rdparty
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` --includedir=/boot/develop/headers/3rdparty
 	make
 }
 
diff --git a/media-libs/freetype/freetype-2.4.4.bep b/media-libs/freetype/freetype-2.4.4.bep
index 65ba77d85..ea267c28f 100644
--- a/media-libs/freetype/freetype-2.4.4.bep
+++ b/media-libs/freetype/freetype-2.4.4.bep
@@ -8,7 +8,7 @@ DEPEND=""
 BUILD {
 	cd freetype-2.4.4
 	sh ./autogen.sh
-	./configure --prefix=/boot/common --includedir=/boot/develop/headers/3rdparty
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` --includedir=/boot/develop/headers/3rdparty
 	make
 }
 
diff --git a/media-libs/giflib/giflib-4.1.6.bep b/media-libs/giflib/giflib-4.1.6.bep
index ea60b5a13..436231de3 100644
--- a/media-libs/giflib/giflib-4.1.6.bep
+++ b/media-libs/giflib/giflib-4.1.6.bep
@@ -10,7 +10,7 @@ BUILD {
 	cd giflib-4.1.6
 	libtoolize --force --copy --install
 	./autogen.sh
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/media-libs/ilmbase/ilmbase-1.0.1.bep b/media-libs/ilmbase/ilmbase-1.0.1.bep
index 9cd591226..72cc3fdff 100644
--- a/media-libs/ilmbase/ilmbase-1.0.1.bep
+++ b/media-libs/ilmbase/ilmbase-1.0.1.bep
@@ -9,7 +9,7 @@ BUILD {
 	cd ilmbase-1.0.1
 	libtoolize --copy --force --install
 	./bootstrap
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/media-libs/ilmbase/ilmbase-1.0.2.bep b/media-libs/ilmbase/ilmbase-1.0.2.bep
index 26ab2ea1c..23c6197f2 100644
--- a/media-libs/ilmbase/ilmbase-1.0.2.bep
+++ b/media-libs/ilmbase/ilmbase-1.0.2.bep
@@ -10,7 +10,7 @@ BUILD {
 	cd ilmbase-1.0.2
 	libtoolize --copy --force --install
 	./bootstrap
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/media-libs/jasper/jasper-1.900.1.bep b/media-libs/jasper/jasper-1.900.1.bep
index cef9ac0a6..834436cbf 100644
--- a/media-libs/jasper/jasper-1.900.1.bep
+++ b/media-libs/jasper/jasper-1.900.1.bep
@@ -12,7 +12,7 @@ BUILD {
 	autoconf
 	automake
 	chmod 777 configure
-	./configure --prefix=/boot/common --enable-shared
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` --enable-shared
 	make
 }
 
diff --git a/media-libs/jpeg/jpeg-7.bep b/media-libs/jpeg/jpeg-7.bep
index 59a31efe7..119a1b211 100644
--- a/media-libs/jpeg/jpeg-7.bep
+++ b/media-libs/jpeg/jpeg-7.bep
@@ -11,7 +11,7 @@ BUILD {
 	libtoolize --force --copy --install
 	automake --add-missing
 	autoconf
-	./configure --prefix=/boot/common --enable-shared
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` --enable-shared
 	make 
 }
 
diff --git a/media-libs/jpeg/jpeg-8b.bep b/media-libs/jpeg/jpeg-8b.bep
index 351313e8c..d25212bf5 100644
--- a/media-libs/jpeg/jpeg-8b.bep
+++ b/media-libs/jpeg/jpeg-8b.bep
@@ -11,7 +11,7 @@ BUILD {
 	libtoolize --force --copy --install
 	automake --add-missing
 	autoconf
-	./configure --prefix=/boot/common --enable-shared
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` --enable-shared
 	make 
 }
 
diff --git a/media-libs/lcms/lcms-1.18a.bep b/media-libs/lcms/lcms-1.18a.bep
index c69d55306..00157df16 100644
--- a/media-libs/lcms/lcms-1.18a.bep
+++ b/media-libs/lcms/lcms-1.18a.bep
@@ -11,7 +11,7 @@ BUILD {
 	aclocal
 	automake
 	autoconf
-	./configure --prefix=/boot/common CFLAGS=-O0
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` CFLAGS=-O0
 	make
 }
 
diff --git a/media-libs/lcms/lcms-1.19.bep b/media-libs/lcms/lcms-1.19.bep
index c3b120250..3b1a1421e 100644
--- a/media-libs/lcms/lcms-1.19.bep
+++ b/media-libs/lcms/lcms-1.19.bep
@@ -11,7 +11,7 @@ BUILD {
 	aclocal
 	automake
 	autoconf
-	./configure --prefix=/boot/common CFLAGS=-O0
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` CFLAGS=-O0
 	make
 }
 
diff --git a/media-libs/libdca/libdca-0.0.5.bep b/media-libs/libdca/libdca-0.0.5.bep
index aeec2a94b..f828953df 100644
--- a/media-libs/libdca/libdca-0.0.5.bep
+++ b/media-libs/libdca/libdca-0.0.5.bep
@@ -8,7 +8,7 @@ DEPEND=""
 BUILD {
 	cd libdca-0.0.5
 	./bootstrap
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/media-libs/libdvdcss/libdvdcss-1.2.10.bep b/media-libs/libdvdcss/libdvdcss-1.2.10.bep
index 509ccc51d..fe0d6ef85 100644
--- a/media-libs/libdvdcss/libdvdcss-1.2.10.bep
+++ b/media-libs/libdvdcss/libdvdcss-1.2.10.bep
@@ -11,7 +11,7 @@ BUILD {
 	aclocal
 	autoconf
 	automake
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/media-libs/libdvdnav/libdvdnav-4.1.3.bep b/media-libs/libdvdnav/libdvdnav-4.1.3.bep
index d6932c896..ec98982b9 100644
--- a/media-libs/libdvdnav/libdvdnav-4.1.3.bep
+++ b/media-libs/libdvdnav/libdvdnav-4.1.3.bep
@@ -10,7 +10,7 @@ BUILD {
 	cd libdvdnav-4.1.3
 	./autogen.sh
 	CFLAGS="-I/boot/common/include -DHAVE_DVDCSS_DVDCSS_H " \
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/media-libs/libdvdread/libdvdread-4.1.3.bep b/media-libs/libdvdread/libdvdread-4.1.3.bep
index b2d8d2e2f..44e410dff 100644
--- a/media-libs/libdvdread/libdvdread-4.1.3.bep
+++ b/media-libs/libdvdread/libdvdread-4.1.3.bep
@@ -8,7 +8,7 @@ DEPEND=""
 BUILD {
 	cd libdvdread-4.1.3
 	./autogen.sh
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/media-libs/libdvdread/libdvdread-svn1168.bep b/media-libs/libdvdread/libdvdread-svn1168.bep
index 79c12aa0e..01b1a3b6c 100644
--- a/media-libs/libdvdread/libdvdread-svn1168.bep
+++ b/media-libs/libdvdread/libdvdread-svn1168.bep
@@ -11,7 +11,7 @@ BUILD {
 	aclocal
 	autoconf
 	./autogen.sh
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/media-libs/libmms/libmms-0.5.bep b/media-libs/libmms/libmms-0.5.bep
index 1da705060..9b8ec7c26 100644
--- a/media-libs/libmms/libmms-0.5.bep
+++ b/media-libs/libmms/libmms-0.5.bep
@@ -9,7 +9,7 @@ DEPEND="dev-libs/glib >= 2.0"
 BUILD {
 	cd libmms-0.5
 	./autogen.sh
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/media-libs/libmng/libmng-1.0.10.bep b/media-libs/libmng/libmng-1.0.10.bep
index 2efcd067e..1b61ed321 100644
--- a/media-libs/libmng/libmng-1.0.10.bep
+++ b/media-libs/libmng/libmng-1.0.10.bep
@@ -13,7 +13,7 @@ BUILD {
 	libtoolize --force --copy --install
 	aclocal
 	./autogen.sh
-#	./configure --prefix=/boot/common \
+#	./configure --prefix=`finddir B_COMMON_DIRECTORY` \
 #	LDFLAGS=-L/boot/common/lib \
 #	CPPFLAGS=-I/boot/common/include
 	MANDIR=`finddir B_COMMON_DOCUMENTATION_DIRECTORY`/man
diff --git a/media-libs/libogg/libogg-1.1.4.bep b/media-libs/libogg/libogg-1.1.4.bep
index 61194c661..2859a806d 100644
--- a/media-libs/libogg/libogg-1.1.4.bep
+++ b/media-libs/libogg/libogg-1.1.4.bep
@@ -11,7 +11,7 @@ BUILD {
 	aclocal
 	autoconf
 	automake
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/media-libs/libogg/libogg-1.2.0.bep b/media-libs/libogg/libogg-1.2.0.bep
index bd2c7703a..b82d6c503 100644
--- a/media-libs/libogg/libogg-1.2.0.bep
+++ b/media-libs/libogg/libogg-1.2.0.bep
@@ -13,7 +13,7 @@ BUILD {
 	echo 'AC_CONFIG_MACRO_DIR([m4]) >> configure.in'
 	aclocal --install -I m4
 	autoconf
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/media-libs/libpng/libpng-1.2.29.bep b/media-libs/libpng/libpng-1.2.29.bep
index 753198c7f..3115d3d32 100644
--- a/media-libs/libpng/libpng-1.2.29.bep
+++ b/media-libs/libpng/libpng-1.2.29.bep
@@ -7,7 +7,7 @@ DEPEND=""
 BUILD {
 	cd libpng-1.2.29
 	./autogen.sh
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/media-libs/libpng/libpng-1.2.30.bep b/media-libs/libpng/libpng-1.2.30.bep
index fcd7678f9..bed0800f5 100644
--- a/media-libs/libpng/libpng-1.2.30.bep
+++ b/media-libs/libpng/libpng-1.2.30.bep
@@ -10,7 +10,7 @@ BUILD {
 	cp /boot/common/share/libtool/config.sub
 	libtoolize --force --copy
 	./autogen.sh
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/media-libs/libpng/libpng-1.2.40.bep b/media-libs/libpng/libpng-1.2.40.bep
index b8068c8c4..e43975616 100644
--- a/media-libs/libpng/libpng-1.2.40.bep
+++ b/media-libs/libpng/libpng-1.2.40.bep
@@ -9,7 +9,7 @@ BUILD {
 	cd libpng-1.2.40
 	libtoolize --force --copy
 	./autogen.sh
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/media-libs/libpng/libpng-1.2.41.bep b/media-libs/libpng/libpng-1.2.41.bep
index c234b6bd3..f18fd1c07 100644
--- a/media-libs/libpng/libpng-1.2.41.bep
+++ b/media-libs/libpng/libpng-1.2.41.bep
@@ -9,7 +9,7 @@ BUILD {
 	cd libpng-1.2.41
 	libtoolize --force --copy
 	./autogen.sh
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/media-libs/libpng/libpng-1.2.43.bep b/media-libs/libpng/libpng-1.2.43.bep
index b1799be79..869e467ce 100644
--- a/media-libs/libpng/libpng-1.2.43.bep
+++ b/media-libs/libpng/libpng-1.2.43.bep
@@ -9,7 +9,7 @@ BUILD {
 	cd libpng-1.2.43
 	libtoolize --force --copy
 	./autogen.sh
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/media-libs/libpng/libpng-1.2.44.bep b/media-libs/libpng/libpng-1.2.44.bep
index fc7140bb6..2a9d84070 100644
--- a/media-libs/libpng/libpng-1.2.44.bep
+++ b/media-libs/libpng/libpng-1.2.44.bep
@@ -9,7 +9,7 @@ BUILD {
 	cd libpng-1.2.44
 	libtoolize --force --copy
 	./autogen.sh
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/media-libs/libpng/libpng-1.4.1.bep b/media-libs/libpng/libpng-1.4.1.bep
index bbda2e3ac..d5c4a7bc7 100644
--- a/media-libs/libpng/libpng-1.4.1.bep
+++ b/media-libs/libpng/libpng-1.4.1.bep
@@ -9,7 +9,7 @@ BUILD {
 	cd libpng-1.4.1
 	libtoolize --force --copy
 	./autogen.sh
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/media-libs/libpng/libpng-1.4.2.bep b/media-libs/libpng/libpng-1.4.2.bep
index 259663fed..72bb98aae 100644
--- a/media-libs/libpng/libpng-1.4.2.bep
+++ b/media-libs/libpng/libpng-1.4.2.bep
@@ -14,7 +14,7 @@ BUILD {
 	cd libpng-1.4.2
 	libtoolize --force --copy
 	./autogen.sh
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/media-libs/libpng/libpng-1.4.3.bep b/media-libs/libpng/libpng-1.4.3.bep
index 64b28e178..dd7d1af3f 100644
--- a/media-libs/libpng/libpng-1.4.3.bep
+++ b/media-libs/libpng/libpng-1.4.3.bep
@@ -14,7 +14,7 @@ BUILD {
 	cd libpng-1.4.3
 	libtoolize --force --copy
 	./autogen.sh
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/media-libs/libpng/libpng-1.4.4.bep b/media-libs/libpng/libpng-1.4.4.bep
index aef563ec2..7950fef2c 100644
--- a/media-libs/libpng/libpng-1.4.4.bep
+++ b/media-libs/libpng/libpng-1.4.4.bep
@@ -14,7 +14,7 @@ BUILD {
 	cd libpng-1.4.4
 	libtoolize --force --copy
 	./autogen.sh
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/media-libs/libvorbis/libvorbis-1.2.3.bep b/media-libs/libvorbis/libvorbis-1.2.3.bep
index 388c50d11..cf406657e 100644
--- a/media-libs/libvorbis/libvorbis-1.2.3.bep
+++ b/media-libs/libvorbis/libvorbis-1.2.3.bep
@@ -12,7 +12,7 @@ BUILD {
 	aclocal --install -I m4
 	autoconf
 	automake
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/media-libs/libvorbis/libvorbis-1.3.1.bep b/media-libs/libvorbis/libvorbis-1.3.1.bep
index bdaf6a5a8..b618fa7a6 100644
--- a/media-libs/libvorbis/libvorbis-1.3.1.bep
+++ b/media-libs/libvorbis/libvorbis-1.3.1.bep
@@ -13,7 +13,7 @@ BUILD {
 	aclocal --install -I m4
 	autoconf
 	automake
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/media-libs/libvpx/libvpx-0.9.2-git.bep b/media-libs/libvpx/libvpx-0.9.2-git.bep
index d18144221..9eb7d31d4 100644
--- a/media-libs/libvpx/libvpx-0.9.2-git.bep
+++ b/media-libs/libvpx/libvpx-0.9.2-git.bep
@@ -6,7 +6,7 @@ STATUS_HAIKU="stable"
 DEPEND=""
 BUILD {
         cd libvpx-0.9.2-git
-        ./configure --prefix=/boot/common \
+        ./configure --prefix=`finddir B_COMMON_DIRECTORY` \
         --enable-pic \
 		--enable-vp8
         make
diff --git a/media-libs/openjpeg/openjpeg-1.3.bep b/media-libs/openjpeg/openjpeg-1.3.bep
index a82c46f45..8879934ef 100644
--- a/media-libs/openjpeg/openjpeg-1.3.bep
+++ b/media-libs/openjpeg/openjpeg-1.3.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND=""
 BUILD {
 	cd OpenJPEG_v1_3
-	./configure --build=i586-pc-beos --prefix=/boot/common
+	./configure --build=i586-pc-beos --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/media-libs/plib/plib-1.8.5.bep b/media-libs/plib/plib-1.8.5.bep
index cf223871e..460ce966e 100644
--- a/media-libs/plib/plib-1.8.5.bep
+++ b/media-libs/plib/plib-1.8.5.bep
@@ -10,7 +10,7 @@ BUILD {
 	cd plib-1.8.5
 	libtoolize --force --copy --install
 	./autogen.sh
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/media-libs/sdl-image/sdl-image-1.2.6.bep b/media-libs/sdl-image/sdl-image-1.2.6.bep
index cf1a78ace..d52989c78 100644
--- a/media-libs/sdl-image/sdl-image-1.2.6.bep
+++ b/media-libs/sdl-image/sdl-image-1.2.6.bep
@@ -14,7 +14,7 @@ BUILD {
 	aclocal
 	autoconf
 	./autogen.sh
-	./configure --prefix=/boot/common LDFLAGS=-L/boot/common/lib CPPFLAGS=-I/boot/common/include
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` LDFLAGS=-L/boot/common/lib CPPFLAGS=-I/boot/common/include
 	make
 }
 
diff --git a/media-libs/sdl-image/sdl-image-1.2.8.bep b/media-libs/sdl-image/sdl-image-1.2.8.bep
index ef8706630..3f0fd1054 100644
--- a/media-libs/sdl-image/sdl-image-1.2.8.bep
+++ b/media-libs/sdl-image/sdl-image-1.2.8.bep
@@ -10,7 +10,7 @@ BUILD {
 	libtoolize --force --copy --install
 	aclocal --install -I acinclude
 	./autogen.sh
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/media-libs/sdl-image/sdl-image-1.2.9.bep b/media-libs/sdl-image/sdl-image-1.2.9.bep
index 45017210d..3318cb3db 100644
--- a/media-libs/sdl-image/sdl-image-1.2.9.bep
+++ b/media-libs/sdl-image/sdl-image-1.2.9.bep
@@ -10,7 +10,7 @@ BUILD {
 	libtoolize --force --copy --install
 	aclocal --install -I acinclude
 	./autogen.sh
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/media-libs/sdl-mixer/sdl-mixer-1.2.10.bep b/media-libs/sdl-mixer/sdl-mixer-1.2.10.bep
index 0e6fa54ca..930a94ac7 100644
--- a/media-libs/sdl-mixer/sdl-mixer-1.2.10.bep
+++ b/media-libs/sdl-mixer/sdl-mixer-1.2.10.bep
@@ -11,7 +11,7 @@ BUILD {
 	cp ltmain.sh build-scripts/ltmain.sh
 	aclocal --install -I acinclude
 	./autogen.sh
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/media-libs/sdl-mixer/sdl-mixer-1.2.9.bep b/media-libs/sdl-mixer/sdl-mixer-1.2.9.bep
index 47e2cd0b3..c9bf5b91b 100644
--- a/media-libs/sdl-mixer/sdl-mixer-1.2.9.bep
+++ b/media-libs/sdl-mixer/sdl-mixer-1.2.9.bep
@@ -11,7 +11,7 @@ BUILD {
 	cp ltmain.sh build-scripts/ltmain.sh
 	aclocal --install -I acinclude
 	./autogen.sh
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/media-libs/sdl-ttf/sdl-ttf-2.0.9.bep b/media-libs/sdl-ttf/sdl-ttf-2.0.9.bep
index 6235541fc..18f5cb80d 100644
--- a/media-libs/sdl-ttf/sdl-ttf-2.0.9.bep
+++ b/media-libs/sdl-ttf/sdl-ttf-2.0.9.bep
@@ -14,7 +14,7 @@ BUILD {
 	touch NEWS AUTHORS ChangeLog
 	automake --add-missing --force-missing --warnings=none
 	autoconf
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/media-sound/lame/lame-3.98.4.bep b/media-sound/lame/lame-3.98.4.bep
index b7d6b7dba..d5f82fbe4 100644
--- a/media-sound/lame/lame-3.98.4.bep
+++ b/media-sound/lame/lame-3.98.4.bep
@@ -14,7 +14,7 @@ BUILD {
 	libtoolize --force --copy --install
 	aclocal -I m4
 	autoconf --warnings=none
-	./configure --prefix=/boot/common --without-gtk
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` --without-gtk
 	make
 }
 
diff --git a/media-sound/schismtracker/schismtracker-20100713.bep b/media-sound/schismtracker/schismtracker-20100713.bep
index c6989404e..d1c10a5d2 100644
--- a/media-sound/schismtracker/schismtracker-20100713.bep
+++ b/media-sound/schismtracker/schismtracker-20100713.bep
@@ -13,7 +13,7 @@ BUILD {
 	autoconf
 	autoheader
 	automake --add-missing
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/media-video/handbrake/handbrake-0.9.5.bep b/media-video/handbrake/handbrake-0.9.5.bep
index 80addcb24..3393f566a 100644
--- a/media-video/handbrake/handbrake-0.9.5.bep
+++ b/media-video/handbrake/handbrake-0.9.5.bep
@@ -30,7 +30,7 @@ BUILD {
 	sed -i 's/MODULES += contrib\/libass/ /' make/include/main.defs	
 	sed -i 's/MODULES += contrib\/dvdread/ /' make/include/main.defs	
 	
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	cd build
 	make
 }
diff --git a/media-video/vlc/vlc-1.1.5-20101107.bep b/media-video/vlc/vlc-1.1.5-20101107.bep
index 10b092218..53aca8ef8 100644
--- a/media-video/vlc/vlc-1.1.5-20101107.bep
+++ b/media-video/vlc/vlc-1.1.5-20101107.bep
@@ -19,7 +19,7 @@ CHECKSUM_MD5="9ab7d8218ff37e362f996fd7d8879dbc"
 BUILD {
 	cd vlc-1.1.5
 	./bootstrap
-	./configure --prefix=/boot/common --disable-postproc --disable-xcb --disable-skins2 --disable-qt4 --disable-libgcrypt --disable-remoteosd
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` --disable-postproc --disable-xcb --disable-skins2 --disable-qt4 --disable-libgcrypt --disable-remoteosd
 	make
 }
 
diff --git a/net-ftp/tnftp/tnftp-20091122.bep b/net-ftp/tnftp/tnftp-20091122.bep
index f118ab3b4..44df64778 100644
--- a/net-ftp/tnftp/tnftp-20091122.bep
+++ b/net-ftp/tnftp/tnftp-20091122.bep
@@ -12,7 +12,7 @@ BUILD {
 	autoconf
 	automake
 	autoheader
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 
diff --git a/net-libs/gnutls/gnutls-2.8.6.bep b/net-libs/gnutls/gnutls-2.8.6.bep
index c4a7d7797..274b38205 100644
--- a/net-libs/gnutls/gnutls-2.8.6.bep
+++ b/net-libs/gnutls/gnutls-2.8.6.bep
@@ -22,7 +22,7 @@ BUILD {
 	libtoolize --force --copy --install
 	autoreconf
 	cd ..
-	./configure --prefix=/boot/common
+	./configure --prefix=`finddir B_COMMON_DIRECTORY`
 	make
 }
 INSTALL {
diff --git a/net-libs/libtorrent/libtorrent-0.12.5.bep b/net-libs/libtorrent/libtorrent-0.12.5.bep
index 7f08558ef..cb29cf3cb 100644
--- a/net-libs/libtorrent/libtorrent-0.12.5.bep
+++ b/net-libs/libtorrent/libtorrent-0.12.5.bep
@@ -13,7 +13,7 @@ DEPEND="dev-util/pkgconfig >= 0.23
 BUILD {
 	cd libtorrent-0.12.5
 	autoreconf -vfi
-	./configure --prefix=/boot/common --disable-mincore
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` --disable-mincore
 	make
 }
 
diff --git a/net-misc/axel/axel-2.4.bep b/net-misc/axel/axel-2.4.bep
index 5f5fcf432..f8a7e1722 100644
--- a/net-misc/axel/axel-2.4.bep
+++ b/net-misc/axel/axel-2.4.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND=""
 BUILD {
 	cd axel-2.4
-	./configure --prefix=/boot/common --i18n=0
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` --i18n=0
 	make
 }