diff --git a/app-admin/pwgen/pwgen-2.06.bep b/app-admin/pwgen/pwgen-2.06.bep
index 05bb863ae..a5b6dd2ac 100644
--- a/app-admin/pwgen/pwgen-2.06.bep
+++ b/app-admin/pwgen/pwgen-2.06.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND=""
 BUILD {
 	cd pwgen-2.06
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/app-arch/cabextract/cabextract-1.2.bep b/app-arch/cabextract/cabextract-1.2.bep
index 12752d2f0..d177a5b25 100644
--- a/app-arch/cabextract/cabextract-1.2.bep
+++ b/app-arch/cabextract/cabextract-1.2.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND=""
 BUILD {
 	cd cabextract-1.2
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/app-arch/cabextract/cabextract-1.3.bep b/app-arch/cabextract/cabextract-1.3.bep
index 9264b066c..1b76e22d6 100644
--- a/app-arch/cabextract/cabextract-1.3.bep
+++ b/app-arch/cabextract/cabextract-1.3.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND=""
 BUILD {
 	cd cabextract-1.3
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/app-arch/cpio/cpio-2.10.bep b/app-arch/cpio/cpio-2.10.bep
index 9899f3a06..0b3d1d70e 100644
--- a/app-arch/cpio/cpio-2.10.bep
+++ b/app-arch/cpio/cpio-2.10.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND=""
 BUILD {
 	cd cpio-2.10
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/app-arch/gzip/gzip-1.2.4a.bep b/app-arch/gzip/gzip-1.2.4a.bep
index 92592902e..8f250bee4 100644
--- a/app-arch/gzip/gzip-1.2.4a.bep
+++ b/app-arch/gzip/gzip-1.2.4a.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="untested"
 DEPEND=""
 BUILD {
 	cd gzip-1.2.4a
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/app-arch/gzip/gzip-1.3.12.bep b/app-arch/gzip/gzip-1.3.12.bep
index 69f0b4c3f..3b741dfec 100644
--- a/app-arch/gzip/gzip-1.3.12.bep
+++ b/app-arch/gzip/gzip-1.3.12.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="untested"
 DEPEND=""
 BUILD {
 	cd gzip-1.3.12
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/app-arch/lha/lha-1.14i.bep b/app-arch/lha/lha-1.14i.bep
index 1a3e28307..f8d35192e 100644
--- a/app-arch/lha/lha-1.14i.bep
+++ b/app-arch/lha/lha-1.14i.bep
@@ -8,7 +8,7 @@ DEPEND=""
 BUILD {
 	cd lha-1.14i-ac20050924p1
 	autoreconf -vfi
-	./configure --prefix=/boot/common/
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`/
 	make
 }
 
diff --git a/app-arch/tar/tar-1.23.bep b/app-arch/tar/tar-1.23.bep
index e281aa46a..3e087f398 100644
--- a/app-arch/tar/tar-1.23.bep
+++ b/app-arch/tar/tar-1.23.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="broken"
 DEPEND=""
 BUILD {
 	cd tar-1.23
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/app-arch/tar/tar-1.25.bep b/app-arch/tar/tar-1.25.bep
index ba2673ca5..97db114c3 100644
--- a/app-arch/tar/tar-1.25.bep
+++ b/app-arch/tar/tar-1.25.bep
@@ -16,7 +16,7 @@ BUILD {
 	cp -a `haikuporter -t`/dev-libs/gnulib/work/gnulib-9999/lib/iswblank* gnu/
 	cp -a `haikuporter -t`/dev-libs/gnulib/work/gnulib-9999/lib/fcntl* gnu/
 	COMMON_DOCS=`finddir B_COMMON_DOCUMENTATION_DIRECTORY`
-	./configure --prefix=/boot/common \
+	./configure --prefix=`finddir B_COMMON_BIN_DIRECTORY` \
 		--infodir=$COMMON_DOCS/info \
 		--libexecdir=`finddir B_COMMON_LIB_DIRECTORY`/exec \
 		--sbindir=`finddir B_COMMON_BIN_DIRECTORY` \
diff --git a/app-arch/xz-utils/xz-utils-4.999.9.bep b/app-arch/xz-utils/xz-utils-4.999.9.bep
index 40229ba4e..8eecdfd58 100644
--- a/app-arch/xz-utils/xz-utils-4.999.9.bep
+++ b/app-arch/xz-utils/xz-utils-4.999.9.bep
@@ -14,7 +14,7 @@ BUILD {
 	autoconf
 	autoheader
 	automake -acf --foreign
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/app-cdr/cdrdao/cdrdao-1.2.3.bep b/app-cdr/cdrdao/cdrdao-1.2.3.bep
index e0bbae033..2929dbf3f 100644
--- a/app-cdr/cdrdao/cdrdao-1.2.3.bep
+++ b/app-cdr/cdrdao/cdrdao-1.2.3.bep
@@ -11,7 +11,7 @@ BUILD {
 	aclocal
 	autoconf
 	automake
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/app-cdr/cdrtools/cdrtools-2.01.01a66.bep b/app-cdr/cdrtools/cdrtools-2.01.01a66.bep
index 4aca59234..668125196 100644
--- a/app-cdr/cdrtools/cdrtools-2.01.01a66.bep
+++ b/app-cdr/cdrtools/cdrtools-2.01.01a66.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND=""
 BUILD {
 	cd cdrtools-2.01.01
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/app-crypt/gnupg/gnupg-1.4.10.bep b/app-crypt/gnupg/gnupg-1.4.10.bep
index 237d25a54..d86f309fe 100644
--- a/app-crypt/gnupg/gnupg-1.4.10.bep
+++ b/app-crypt/gnupg/gnupg-1.4.10.bep
@@ -9,7 +9,7 @@ BUILD {
 	cd gnupg-1.4.10
 	libtoolize --force --copy --install
 	autoconf
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/app-editors/nano/nano-2.2.3.bep b/app-editors/nano/nano-2.2.3.bep
index 9727ffa90..f3cd4c393 100644
--- a/app-editors/nano/nano-2.2.3.bep
+++ b/app-editors/nano/nano-2.2.3.bep
@@ -7,7 +7,7 @@ DEPEND="sys-libs/ncurses >= 5.6"
 CHECKSUM_MD5="91918a484f54f94fedaebe00dc393a50"
 BUILD {
 	cd nano-2.2.3
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/app-editors/nano/nano-2.2.5.bep b/app-editors/nano/nano-2.2.5.bep
index 70f2ba256..6a6cb98d2 100644
--- a/app-editors/nano/nano-2.2.5.bep
+++ b/app-editors/nano/nano-2.2.5.bep
@@ -7,7 +7,7 @@ DEPEND="sys-libs/ncurses >= 5.6"
 CHECKSUM_MD5="77a10a49589f975ce98350a4527a2ebf"
 BUILD {
 	cd nano-2.2.5
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/app-emulation/qemu/qemu-0.12.4.bep b/app-emulation/qemu/qemu-0.12.4.bep
index 65f565d02..c303a1e7d 100644
--- a/app-emulation/qemu/qemu-0.12.4.bep
+++ b/app-emulation/qemu/qemu-0.12.4.bep
@@ -8,7 +8,7 @@ CHECKSUM_MD5="93e6b134dff89b2799f57b7d9e0e0fc5"
 
 BUILD {
 	cd qemu-0.12.4
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/app-misc/getopt/getopt-1.1.4.bep b/app-misc/getopt/getopt-1.1.4.bep
index 4690cfc05..676be2f80 100644
--- a/app-misc/getopt/getopt-1.1.4.bep
+++ b/app-misc/getopt/getopt-1.1.4.bep
@@ -12,7 +12,7 @@ BUILD {
 
 INSTALL {
 	cd getopt-1.1.4
-	make install prefix=/boot/common DESTDIR="${DESTDIR}"
+	make install prefix=`findir B_COMMON_BIN_DIRECTORY` DESTDIR="${DESTDIR}"
 }
 LICENSE="GNU GPL v2"
 COPYRIGHT="1997-2005 Frodo Looijaard"
diff --git a/app-shells/zsh/zsh-4.3.10.bep b/app-shells/zsh/zsh-4.3.10.bep
index 4f3349e3a..f74fd189b 100644
--- a/app-shells/zsh/zsh-4.3.10.bep
+++ b/app-shells/zsh/zsh-4.3.10.bep
@@ -8,7 +8,7 @@ DEPEND=""
 BUILD {
 	cd zsh-4.3.10
 	autoconf
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/app-text/aspell/aspell-0.60.6.bep b/app-text/aspell/aspell-0.60.6.bep
index 741c8ee9e..68a386dbd 100644
--- a/app-text/aspell/aspell-0.60.6.bep
+++ b/app-text/aspell/aspell-0.60.6.bep
@@ -11,7 +11,7 @@ BUILD {
 	aclocal -I m4
 	autoconf
 	automake
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/app-text/psiconv/psiconv-0.9.8.bep b/app-text/psiconv/psiconv-0.9.8.bep
index f9f901144..25c1781aa 100644
--- a/app-text/psiconv/psiconv-0.9.8.bep
+++ b/app-text/psiconv/psiconv-0.9.8.bep
@@ -10,7 +10,7 @@ BUILD {
 	libtoolize --force --copy --install
 	aclocal
 	autoconf
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/dev-cpp/mm-common/mm-common-0.9.2.bep b/dev-cpp/mm-common/mm-common-0.9.2.bep
index 519b2c163..39b396dfb 100644
--- a/dev-cpp/mm-common/mm-common-0.9.2.bep
+++ b/dev-cpp/mm-common/mm-common-0.9.2.bep
@@ -8,7 +8,7 @@ CHECKSUM_MD5="87dedc889b8d642b616813f23ed8c9f9"
 BUILD {
 	cd mm-common-0.9.2
 	autoreconf --force --install --verbose
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/dev-cpp/mxml/mxml-2.6.bep b/dev-cpp/mxml/mxml-2.6.bep
index 1ae13c577..3c992f6a1 100644
--- a/dev-cpp/mxml/mxml-2.6.bep
+++ b/dev-cpp/mxml/mxml-2.6.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND=""
 BUILD {
         cd mxml-2.6
-        ./configure --prefix=/boot/common --enable-shared
+        ./configure --prefix=`findir B_COMMON_BIN_DIRECTORY` --enable-shared
         make
 }
 	
diff --git a/dev-db/sqlite/sqlite-3.6.22.bep b/dev-db/sqlite/sqlite-3.6.22.bep
index e752e3a8e..3067f5352 100644
--- a/dev-db/sqlite/sqlite-3.6.22.bep
+++ b/dev-db/sqlite/sqlite-3.6.22.bep
@@ -11,7 +11,7 @@ BUILD {
 	aclocal
 	autoconf
 	automake
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/dev-db/sqlite/sqlite-3.6.23.bep b/dev-db/sqlite/sqlite-3.6.23.bep
index 7138b6f73..b7ff77d26 100644
--- a/dev-db/sqlite/sqlite-3.6.23.bep
+++ b/dev-db/sqlite/sqlite-3.6.23.bep
@@ -11,7 +11,7 @@ BUILD {
 	aclocal
 	autoconf
 	automake
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/dev-db/sqlite/sqlite-3.7.2.bep b/dev-db/sqlite/sqlite-3.7.2.bep
index b86a25587..dac87122f 100644
--- a/dev-db/sqlite/sqlite-3.7.2.bep
+++ b/dev-db/sqlite/sqlite-3.7.2.bep
@@ -11,7 +11,7 @@ BUILD {
 	aclocal
 	autoconf
 	automake
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/dev-db/sqlite/sqlite-3.7.3.bep b/dev-db/sqlite/sqlite-3.7.3.bep
index 43f867472..9bf0392c9 100644
--- a/dev-db/sqlite/sqlite-3.7.3.bep
+++ b/dev-db/sqlite/sqlite-3.7.3.bep
@@ -11,7 +11,7 @@ BUILD {
 	aclocal
 	autoconf
 	automake
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/dev-db/sqlite/sqlite-3.7.4.bep b/dev-db/sqlite/sqlite-3.7.4.bep
index 0c0845152..3147fca97 100644
--- a/dev-db/sqlite/sqlite-3.7.4.bep
+++ b/dev-db/sqlite/sqlite-3.7.4.bep
@@ -11,7 +11,7 @@ BUILD {
 	aclocal
 	autoconf
 	automake
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/dev-games/flatzebra/flatzebra-0.1.3.bep b/dev-games/flatzebra/flatzebra-0.1.3.bep
index 3a4f7fafb..f4fe82eef 100644
--- a/dev-games/flatzebra/flatzebra-0.1.3.bep
+++ b/dev-games/flatzebra/flatzebra-0.1.3.bep
@@ -13,7 +13,7 @@ BUILD {
 		aclocal -I macros
 		autoconf
 		automake
-        ./configure --prefix=/boot/common
+        ./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
         make
 }
 	
diff --git a/dev-lang/nasm/nasm-2.08.01.bep b/dev-lang/nasm/nasm-2.08.01.bep
index c1e908a58..9511ffe29 100644
--- a/dev-lang/nasm/nasm-2.08.01.bep
+++ b/dev-lang/nasm/nasm-2.08.01.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="untested"
 DEPEND=""
 BUILD {
 	cd nasm-2.08.01
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/dev-lang/python/python-2.5.4.bep b/dev-lang/python/python-2.5.4.bep
index a3a0e2e45..a149e596b 100644
--- a/dev-lang/python/python-2.5.4.bep
+++ b/dev-lang/python/python-2.5.4.bep
@@ -16,7 +16,7 @@ BUILD {
 	libtoolize --force --copy --install
 	aclocal
 	autoconf
-	./configure --prefix=/boot/common --enable-shared LDFLAGS=-L/boot/common/lib CFLAGS=-I/boot/develop/headers/3rdparty
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY` --enable-shared LDFLAGS=-L/boot/common/lib CFLAGS=-I/boot/develop/headers/3rdparty
 	make
 }
 
diff --git a/dev-lang/python/python-2.6.4.bep b/dev-lang/python/python-2.6.4.bep
index bc81ee33e..c02a7eebf 100644
--- a/dev-lang/python/python-2.6.4.bep
+++ b/dev-lang/python/python-2.6.4.bep
@@ -13,7 +13,7 @@ BUILD {
 	libtoolize --force --copy --install
 	aclocal
 	autoconf
-	./configure --prefix=/boot/common --enable-shared CFLAGS=-I/boot/develop/headers/3rdparty
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY` --enable-shared CFLAGS=-I/boot/develop/headers/3rdparty
 	make
 }
 
diff --git a/dev-lang/python/python-2.6.5.bep b/dev-lang/python/python-2.6.5.bep
index 903d0804f..f8a2a73b3 100644
--- a/dev-lang/python/python-2.6.5.bep
+++ b/dev-lang/python/python-2.6.5.bep
@@ -13,7 +13,7 @@ BUILD {
 	libtoolize --force --copy --install
 	aclocal
 	autoconf
-	./configure --prefix=/boot/common --enable-shared LDFLAGS=-L/boot/common/lib CFLAGS=-I/boot/develop/headers/3rdparty
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY` --enable-shared LDFLAGS=-L/boot/common/lib CFLAGS=-I/boot/develop/headers/3rdparty
 	make
 }
 
diff --git a/dev-lang/python/python-2.6.6.bep b/dev-lang/python/python-2.6.6.bep
index 88f99fc38..21230f688 100644
--- a/dev-lang/python/python-2.6.6.bep
+++ b/dev-lang/python/python-2.6.6.bep
@@ -13,7 +13,7 @@ BUILD {
 	libtoolize --force --copy --install
 	aclocal
 	autoconf
-	./configure --prefix=/boot/common --enable-shared LDFLAGS=-L/boot/common/lib CFLAGS=-I/boot/develop/headers/3rdparty
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY` --enable-shared LDFLAGS=-L/boot/common/lib CFLAGS=-I/boot/develop/headers/3rdparty
 	make
 }
 
diff --git a/dev-libs/apr/apr-1.3.8.bep b/dev-libs/apr/apr-1.3.8.bep
index 11ee9c1cf..ed18387aa 100644
--- a/dev-libs/apr/apr-1.3.8.bep
+++ b/dev-libs/apr/apr-1.3.8.bep
@@ -8,7 +8,7 @@ BUILD {
 	cd apr-1.3.8
 	libtoolize --force --copy --install
 	buildconf
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/dev-libs/apr/apr-1.3.9.bep b/dev-libs/apr/apr-1.3.9.bep
index df48bb188..d7d4cd545 100644
--- a/dev-libs/apr/apr-1.3.9.bep
+++ b/dev-libs/apr/apr-1.3.9.bep
@@ -9,7 +9,7 @@ BUILD {
 	cd apr-1.3.9
 	libtoolize --force --copy --install
 	buildconf
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/dev-libs/atk/atk-1.29.2.bep b/dev-libs/atk/atk-1.29.2.bep
index 6c99a703b..c86b55e8b 100644
--- a/dev-libs/atk/atk-1.29.2.bep
+++ b/dev-libs/atk/atk-1.29.2.bep
@@ -12,7 +12,7 @@ BUILD {
 	aclocal
 	autoconf
 	automake
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/dev-libs/atk/atk-1.30.0.bep b/dev-libs/atk/atk-1.30.0.bep
index c9888bc58..89e00af1b 100644
--- a/dev-libs/atk/atk-1.30.0.bep
+++ b/dev-libs/atk/atk-1.30.0.bep
@@ -13,7 +13,7 @@ BUILD {
 	aclocal
 	autoconf
 	automake
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/dev-libs/glib/glib-2.22.2.bep b/dev-libs/glib/glib-2.22.2.bep
index d6139ceac..a47e97d6d 100644
--- a/dev-libs/glib/glib-2.22.2.bep
+++ b/dev-libs/glib/glib-2.22.2.bep
@@ -18,7 +18,7 @@ BUILD {
 	aclocal -I m4
 #	automake
 	autoconf
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/dev-libs/glib/glib-2.24.1.bep b/dev-libs/glib/glib-2.24.1.bep
index 57c4bed0c..acb96a2c1 100644
--- a/dev-libs/glib/glib-2.24.1.bep
+++ b/dev-libs/glib/glib-2.24.1.bep
@@ -13,7 +13,7 @@ BUILD {
 	libtoolize --force --copy --install
 	aclocal --install -I m4
 	autoconf
-	./configure --prefix=/boot/common \
+	./configure --prefix=`finddir B_COMMON_BIN_DIRECTORY` \
 	--with-threads=posix \
 	LDFLAGS=-lnetwork
 	make
diff --git a/dev-libs/gmp/gmp-4.3.1.bep b/dev-libs/gmp/gmp-4.3.1.bep
index a82d3278d..b9a6bda4e 100644
--- a/dev-libs/gmp/gmp-4.3.1.bep
+++ b/dev-libs/gmp/gmp-4.3.1.bep
@@ -11,7 +11,7 @@ BUILD {
 	aclocal
 	autoconf
 	automake --add-missing
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/dev-libs/gmp/gmp-4.3.2.bep b/dev-libs/gmp/gmp-4.3.2.bep
index f92d5f085..af0711f61 100644
--- a/dev-libs/gmp/gmp-4.3.2.bep
+++ b/dev-libs/gmp/gmp-4.3.2.bep
@@ -11,7 +11,7 @@ BUILD {
 	aclocal
 	autoconf
 	automake --add-missing
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/media-gfx/imagemagick/imagemagick-6.6.1-10.bep b/media-gfx/imagemagick/imagemagick-6.6.1-10.bep
index c80a9415d..68d1575c2 100644
--- a/media-gfx/imagemagick/imagemagick-6.6.1-10.bep
+++ b/media-gfx/imagemagick/imagemagick-6.6.1-10.bep
@@ -19,7 +19,7 @@ BUILD {
 	aclocal -I m4
 	autoconf
 	automake
-	./configure --prefix=/boot/common \
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY` \
 	--enable-shared \
 	--enable-fast-install \
 	--with-modules=yes \
diff --git a/media-libs/cal3d/cal3d-0.11.0.bep b/media-libs/cal3d/cal3d-0.11.0.bep
index 410f95eac..59435a22d 100644
--- a/media-libs/cal3d/cal3d-0.11.0.bep
+++ b/media-libs/cal3d/cal3d-0.11.0.bep
@@ -11,7 +11,7 @@ BUILD {
 	aclocal
 	autoconf
 	automake
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/media-libs/devil/devil-1.7.8.bep b/media-libs/devil/devil-1.7.8.bep
index 8f058ef6d..ccadead38 100644
--- a/media-libs/devil/devil-1.7.8.bep
+++ b/media-libs/devil/devil-1.7.8.bep
@@ -14,7 +14,7 @@ BUILD {
 	cd devil-1.7.8
 	libtoolize --force --copy --install
 	autoreconf -i
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/media-libs/tiff/tiff-3.8.2.bep b/media-libs/tiff/tiff-3.8.2.bep
index d5d586ac8..63b54330a 100644
--- a/media-libs/tiff/tiff-3.8.2.bep
+++ b/media-libs/tiff/tiff-3.8.2.bep
@@ -16,7 +16,7 @@ BUILD {
 	autoconf
 	autoheader
 	automake
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/media-libs/tiff/tiff-3.9.1.bep b/media-libs/tiff/tiff-3.9.1.bep
index 8d36999e2..1a171d70f 100644
--- a/media-libs/tiff/tiff-3.9.1.bep
+++ b/media-libs/tiff/tiff-3.9.1.bep
@@ -12,7 +12,7 @@ BUILD {
 	autoconf
 	autoheader
 	automake
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/media-libs/tiff/tiff-3.9.4.bep b/media-libs/tiff/tiff-3.9.4.bep
index 2207c254e..3eec04962 100644
--- a/media-libs/tiff/tiff-3.9.4.bep
+++ b/media-libs/tiff/tiff-3.9.4.bep
@@ -12,7 +12,7 @@ BUILD {
 	autoconf
 	autoheader
 	automake
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/media-sound/bladeenc/bladeenc-0.94.2.bep b/media-sound/bladeenc/bladeenc-0.94.2.bep
index 370691c87..8862f40fc 100644
--- a/media-sound/bladeenc/bladeenc-0.94.2.bep
+++ b/media-sound/bladeenc/bladeenc-0.94.2.bep
@@ -11,7 +11,7 @@ BUILD {
 	aclocal
 	automake --add-missing
 	autoconf
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/media-sound/lame/lame-398-2.bep b/media-sound/lame/lame-398-2.bep
index 3d47050eb..92db2b1fe 100644
--- a/media-sound/lame/lame-398-2.bep
+++ b/media-sound/lame/lame-398-2.bep
@@ -11,7 +11,7 @@ BUILD {
 	aclocal
 	autoconf
 	automake
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/media-sound/mpg123/mpg123-1.12.1.bep b/media-sound/mpg123/mpg123-1.12.1.bep
index 6164581a5..c43ed69d0 100644
--- a/media-sound/mpg123/mpg123-1.12.1.bep
+++ b/media-sound/mpg123/mpg123-1.12.1.bep
@@ -10,7 +10,7 @@ BUILD {
 	libtoolize --force --copy --install
 	aclocal
 	autoconf
-	./configure --prefix=/boot/common --disable-aligncheck
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY` --disable-aligncheck
 	make
 }
 
diff --git a/media-sound/naspro/naspro-0.2.9-hg.bep b/media-sound/naspro/naspro-0.2.9-hg.bep
index bf56aa1da..89c8d3ee4 100644
--- a/media-sound/naspro/naspro-0.2.9-hg.bep
+++ b/media-sound/naspro/naspro-0.2.9-hg.bep
@@ -8,7 +8,7 @@ DEPEND=""
 BUILD {
 	cd naspro-0.2.9-hg/naspro-core
 	./autogen.sh
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/media-sound/ocp/ocp-snapshot20110319.bep b/media-sound/ocp/ocp-snapshot20110319.bep
index b90dd2792..281ace51e 100644
--- a/media-sound/ocp/ocp-snapshot20110319.bep
+++ b/media-sound/ocp/ocp-snapshot20110319.bep
@@ -14,7 +14,7 @@ MESSAGE="This port requires gcc4"
 BUILD {
 	cd ocp-snapshot-20110319
 	autoconf
-	CPPFLAGS=-I/boot/common/include LDFLAGS=-L/boot/common/lib ./configure --prefix=/boot/common
+	CPPFLAGS=-I/boot/common/include LDFLAGS=-L/boot/common/lib ./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/media-sound/ocp/ocp-snapshot20110320.bep b/media-sound/ocp/ocp-snapshot20110320.bep
index d16c67852..8608fb66d 100644
--- a/media-sound/ocp/ocp-snapshot20110320.bep
+++ b/media-sound/ocp/ocp-snapshot20110320.bep
@@ -14,7 +14,7 @@ MESSAGE="This port requires gcc4"
 BUILD {
 	cd ocp-snapshot-20110320
 	autoconf
-	CPPFLAGS=-I/boot/common/include LDFLAGS=-L/boot/common/lib ./configure --prefix=/boot/common
+	CPPFLAGS=-I/boot/common/include LDFLAGS=-L/boot/common/lib ./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/media-sound/vorbis-tools/vorbis-tools-1.2.0.bep b/media-sound/vorbis-tools/vorbis-tools-1.2.0.bep
index b3dcd6efb..8b0d35477 100644
--- a/media-sound/vorbis-tools/vorbis-tools-1.2.0.bep
+++ b/media-sound/vorbis-tools/vorbis-tools-1.2.0.bep
@@ -11,7 +11,7 @@ BUILD {
 	aclocal -I m4
 	automake
 	autoconf
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/media-sound/vorbis-tools/vorbis-tools-1.4.0.bep b/media-sound/vorbis-tools/vorbis-tools-1.4.0.bep
index 891733d53..ff890fe2b 100644
--- a/media-sound/vorbis-tools/vorbis-tools-1.4.0.bep
+++ b/media-sound/vorbis-tools/vorbis-tools-1.4.0.bep
@@ -14,7 +14,7 @@ BUILD {
 	aclocal -I m4
 	automake
 	autoconf
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/media-video/ffmpeg/ffmpeg-0.5.bep b/media-video/ffmpeg/ffmpeg-0.5.bep
index 35bb5a1b3..052a3f565 100644
--- a/media-video/ffmpeg/ffmpeg-0.5.bep
+++ b/media-video/ffmpeg/ffmpeg-0.5.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND=""
 BUILD {
 	cd ffmpeg-0.5
-	./configure --prefix=/boot/common --disable-debug --disable-mmx --enable-shared
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY` --disable-debug --disable-mmx --enable-shared
 	make
 }
 
diff --git a/media-video/ffmpeg/ffmpeg-0.6.bep b/media-video/ffmpeg/ffmpeg-0.6.bep
index 3a0f1fc15..4b2c5ef8f 100644
--- a/media-video/ffmpeg/ffmpeg-0.6.bep
+++ b/media-video/ffmpeg/ffmpeg-0.6.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND=""
 BUILD {
 	cd ffmpeg-0.6
-	./configure --prefix=/boot/common --disable-debug --disable-mmx --enable-shared
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY` --disable-debug --disable-mmx --enable-shared
 	make
 }
 
diff --git a/media-video/ffmpeg/ffmpeg-23081.bep b/media-video/ffmpeg/ffmpeg-23081.bep
index 3b6a4cf9e..43c9dcf35 100644
--- a/media-video/ffmpeg/ffmpeg-23081.bep
+++ b/media-video/ffmpeg/ffmpeg-23081.bep
@@ -8,7 +8,7 @@ DEPEND=""
 BUILD {
 	cd ffmpeg-23081
 	chmod 777 configure
-	./configure --prefix=/boot/common --disable-debug --disable-mmx --enable-shared --enable-gpl
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY` --disable-debug --disable-mmx --enable-shared --enable-gpl
 	make
 }
 
diff --git a/media-video/ffmpeg/ffmpeg-7407.bep b/media-video/ffmpeg/ffmpeg-7407.bep
index e8e842956..23464b73a 100644
--- a/media-video/ffmpeg/ffmpeg-7407.bep
+++ b/media-video/ffmpeg/ffmpeg-7407.bep
@@ -8,7 +8,7 @@ DEPEND=""
 BUILD {
 	cd ffmpeg-7407
 	chmod 777 configure
-	./configure --prefix=/boot/common --disable-debug --disable-mmx --enable-shared --enable-gpl --enable-pp
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY` --disable-debug --disable-mmx --enable-shared --enable-gpl --enable-pp
 	make
 }
 
diff --git a/media-video/vlc/vlc-0.8.6i.bep b/media-video/vlc/vlc-0.8.6i.bep
index b863b4a49..8ecf82e49 100644
--- a/media-video/vlc/vlc-0.8.6i.bep
+++ b/media-video/vlc/vlc-0.8.6i.bep
@@ -15,7 +15,7 @@ CHECKSUM_MD5="fd852166d1705573cd7768a06117ed51"
 BUILD {
 	cd vlc-0.8.6i
 	libtoolize --force --copy --install
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/net-p2p/rtorrent/rtorrent-0.8.5.bep b/net-p2p/rtorrent/rtorrent-0.8.5.bep
index f817a6633..37bb55c8d 100644
--- a/net-p2p/rtorrent/rtorrent-0.8.5.bep
+++ b/net-p2p/rtorrent/rtorrent-0.8.5.bep
@@ -14,7 +14,7 @@ DEPEND="pkgconfig >= 0.23
 BUILD {
 	cd rtorrent-0.8.5
 	autoreconf -vfi
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/net-p2p/transmission/transmission-1.72.bep b/net-p2p/transmission/transmission-1.72.bep
index 5ced713ec..a897fba00 100644
--- a/net-p2p/transmission/transmission-1.72.bep
+++ b/net-p2p/transmission/transmission-1.72.bep
@@ -13,7 +13,7 @@ DEPEND="dev-util/pkgconfig >= 0.23
 BUILD {
 	cd transmission-1.72
 	autoreconf -vfi
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/net-p2p/transmission/transmission-1.73.bep b/net-p2p/transmission/transmission-1.73.bep
index 460083399..62296f746 100644
--- a/net-p2p/transmission/transmission-1.73.bep
+++ b/net-p2p/transmission/transmission-1.73.bep
@@ -13,7 +13,7 @@ DEPEND="dev-util/pkgconfig >= 0.23
 BUILD {
 	cd transmission-1.73
 	autoreconf -vfi
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/net-p2p/transmission/transmission-1.93.bep b/net-p2p/transmission/transmission-1.93.bep
index 2b6c78703..afe3c41d9 100644
--- a/net-p2p/transmission/transmission-1.93.bep
+++ b/net-p2p/transmission/transmission-1.93.bep
@@ -15,7 +15,7 @@ DEPEND="dev-util/pkgconfig >= 0.23
 BUILD {
 	cd transmission-1.93
 	autoreconf -vfi
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/net-p2p/transmission/transmission-2.01.bep b/net-p2p/transmission/transmission-2.01.bep
index 20c052b3b..6a0e8d6d3 100644
--- a/net-p2p/transmission/transmission-2.01.bep
+++ b/net-p2p/transmission/transmission-2.01.bep
@@ -15,7 +15,7 @@ DEPEND="dev-util/pkgconfig >= 0.23
 BUILD {
 	cd transmission-2.01
 	autoreconf -vfi
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/net-p2p/transmission/transmission-2.12.bep b/net-p2p/transmission/transmission-2.12.bep
index 280fa11bc..0c2304fc0 100644
--- a/net-p2p/transmission/transmission-2.12.bep
+++ b/net-p2p/transmission/transmission-2.12.bep
@@ -15,7 +15,7 @@ DEPEND="dev-util/pkgconfig >= 0.23
 BUILD {
 	cd transmission-2.12
 	autoreconf -vfi
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/net-p2p/transmission/transmission-2.21.bep b/net-p2p/transmission/transmission-2.21.bep
index f910f8bb0..2001f3158 100644
--- a/net-p2p/transmission/transmission-2.21.bep
+++ b/net-p2p/transmission/transmission-2.21.bep
@@ -14,7 +14,7 @@ DEPEND="dev-util/pkgconfig >= 0.23
 BUILD {
 	cd transmission-2.21
 	autoreconf -vfi
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/net-wireless/b43-fwcutter/b43-fwcutter-012.bep b/net-wireless/b43-fwcutter/b43-fwcutter-012.bep
index ee5531fe4..8d67c0126 100644
--- a/net-wireless/b43-fwcutter/b43-fwcutter-012.bep
+++ b/net-wireless/b43-fwcutter/b43-fwcutter-012.bep
@@ -10,12 +10,12 @@ BUILD {
 	svn export http://svn.haiku-os.org/haiku/haiku/trunk/src/system/libroot/posix/glibc/string/byteswap.h
 	mkdir bits
 	svn export http://svn.haiku-os.org/haiku/haiku/trunk/src/system/libroot/posix/glibc/include/arch/x86/bits/byteswap.h bits/byteswap.h
-	make PREFIX=/boot/common CFLAGS="-I. -Wall -D_BSD_SOURCE"
+	make PREFIX=`findir B_COMMON_BIN_DIRECTORY` CFLAGS="-I. -Wall -D_BSD_SOURCE"
 }
 
 INSTALL {
 	cd b43-fwcutter-012
-	make PREFIX=/boot/common install
+	make PREFIX=`findir B_COMMON_BIN_DIRECTORY` install
 }
 LICENSE="GNU GPL v2"
 COPYRIGHT="2005 Martin Langer
diff --git a/sci-libs/fftw/fftw-3.2.2.bep b/sci-libs/fftw/fftw-3.2.2.bep
index bc9f2bd5e..d151071fe 100644
--- a/sci-libs/fftw/fftw-3.2.2.bep
+++ b/sci-libs/fftw/fftw-3.2.2.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="untested"
 DEPEND=""
 BUILD {
 	cd fftw-3.2.2
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/sci-libs/gdal/gdal-1.7.2.bep b/sci-libs/gdal/gdal-1.7.2.bep
index 3f4198de2..83d295ead 100644
--- a/sci-libs/gdal/gdal-1.7.2.bep
+++ b/sci-libs/gdal/gdal-1.7.2.bep
@@ -10,7 +10,7 @@ BUILD {
 	cd gdal-1.7.2
 	libtoolize --force --copy --install
 	./autogen.sh
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/sci-libs/gsl/gsl-1.13.bep b/sci-libs/gsl/gsl-1.13.bep
index 8c3a834e7..d690f5c3c 100644
--- a/sci-libs/gsl/gsl-1.13.bep
+++ b/sci-libs/gsl/gsl-1.13.bep
@@ -11,7 +11,7 @@ BUILD {
 	aclocal
 	autoconf
 	automake
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/sys-apps/diffutils/diffutils-2.9.bep b/sys-apps/diffutils/diffutils-2.9.bep
index 7d655c9b4..30b97791a 100644
--- a/sys-apps/diffutils/diffutils-2.9.bep
+++ b/sys-apps/diffutils/diffutils-2.9.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND=""
 BUILD {
 	cd diffutils-2.9
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/sys-apps/ed/ed-1.4.bep b/sys-apps/ed/ed-1.4.bep
index 33ae0aff0..4c45dcb84 100644
--- a/sys-apps/ed/ed-1.4.bep
+++ b/sys-apps/ed/ed-1.4.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND=""
 BUILD {
 	cd ed-1.4
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/sys-apps/file/file-5.04.bep b/sys-apps/file/file-5.04.bep
index ec95c8be7..581aab109 100644
--- a/sys-apps/file/file-5.04.bep
+++ b/sys-apps/file/file-5.04.bep
@@ -8,7 +8,7 @@ DEPEND=""
 BUILD {
 	cd file-5.04
 	autoreconf -fvi
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/sys-apps/grep/grep-2.5.4.bep b/sys-apps/grep/grep-2.5.4.bep
index 5032656dc..4a23c9603 100644
--- a/sys-apps/grep/grep-2.5.4.bep
+++ b/sys-apps/grep/grep-2.5.4.bep
@@ -8,7 +8,7 @@ DEPEND=""
 BUILD {
 	cd grep-2.5.4
 	libtoolize --force --copy --install
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/sys-apps/less/less-436.bep b/sys-apps/less/less-436.bep
index ddc591fbc..efcc6f14a 100644
--- a/sys-apps/less/less-436.bep
+++ b/sys-apps/less/less-436.bep
@@ -8,7 +8,7 @@ DEPEND=""
 BUILD {
 	cd less-436
 	autoreconf -fvi
-	./configure --prefix=/boot/common --with-editor=nano \
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY` --with-editor=nano \
 		--mandir=`finddir B_COMMON_DOCUMENTATION_DIRECTORY`/man
 	make
 }
diff --git a/sys-apps/man/man-1.6f.bep b/sys-apps/man/man-1.6f.bep
index 8b8790262..9f72a5881 100644
--- a/sys-apps/man/man-1.6f.bep
+++ b/sys-apps/man/man-1.6f.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND="sys-apps/groff >= 1.20.1"
 BUILD {
 	cd man-1.6f
-	./configure -prefix=/boot/common -sbindir=/boot/common/bin -confdir=`finddir B_COMMON_SETTINGS_DIRECTORY`
+	./configure -prefix=`findir B_COMMON_BIN_DIRECTORY` -sbindir=/boot/common/bin -confdir=`finddir B_COMMON_SETTINGS_DIRECTORY`
 	make
 }
 
diff --git a/sys-devel/autoconf/autoconf-2.65.bep b/sys-devel/autoconf/autoconf-2.65.bep
index 86f450e97..357ed5f41 100644
--- a/sys-devel/autoconf/autoconf-2.65.bep
+++ b/sys-devel/autoconf/autoconf-2.65.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND=""
 BUILD {
 	cd autoconf-2.65
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/sys-devel/autoconf/autoconf-2.66.bep b/sys-devel/autoconf/autoconf-2.66.bep
index d70cdb3b3..abbead5a4 100644
--- a/sys-devel/autoconf/autoconf-2.66.bep
+++ b/sys-devel/autoconf/autoconf-2.66.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND=""
 BUILD {
 	cd autoconf-2.66
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/sys-devel/autoconf/autoconf-2.67.bep b/sys-devel/autoconf/autoconf-2.67.bep
index 4aae990ad..83bb29de1 100644
--- a/sys-devel/autoconf/autoconf-2.67.bep
+++ b/sys-devel/autoconf/autoconf-2.67.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND=""
 BUILD {
 	cd autoconf-2.67
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/sys-devel/autoconf/autoconf-2.67xz.bep b/sys-devel/autoconf/autoconf-2.67xz.bep
index bc22f6ec7..b63ffea37 100644
--- a/sys-devel/autoconf/autoconf-2.67xz.bep
+++ b/sys-devel/autoconf/autoconf-2.67xz.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND=""
 BUILD {
 	cd autoconf-2.67
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/sys-devel/automake/automake-1.10.3.bep b/sys-devel/automake/automake-1.10.3.bep
index d2dab1e67..310f7235b 100644
--- a/sys-devel/automake/automake-1.10.3.bep
+++ b/sys-devel/automake/automake-1.10.3.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND=""
 BUILD {
 	cd automake-1.10.3
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/sys-devel/bison/bison-2.4.1.bep b/sys-devel/bison/bison-2.4.1.bep
index ce04eeeb4..f4ce469ea 100644
--- a/sys-devel/bison/bison-2.4.1.bep
+++ b/sys-devel/bison/bison-2.4.1.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND=""
 BUILD {
 	cd bison-2.4.1
-	./configure --prefix=/boot/common --disable-nls
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY` --disable-nls
 	make
 }
 
diff --git a/sys-devel/bison/bison-2.4.bep b/sys-devel/bison/bison-2.4.bep
index 20d3115b2..4dbb84bc0 100644
--- a/sys-devel/bison/bison-2.4.bep
+++ b/sys-devel/bison/bison-2.4.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND=""
 BUILD {
 	cd bison-2.4
-	./configure --prefix=/boot/common --disable-nls
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY` --disable-nls
 	make
 }
 
diff --git a/sys-devel/libtool/libtool-2.2.10.bep b/sys-devel/libtool/libtool-2.2.10.bep
index e298ca2d0..d12329392 100644
--- a/sys-devel/libtool/libtool-2.2.10.bep
+++ b/sys-devel/libtool/libtool-2.2.10.bep
@@ -8,7 +8,7 @@ DEPEND=""
 BUILD {
 	cd libtool-2.2.10
 	./bootstrap
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/sys-devel/libtool/libtool-2.2.6.bep b/sys-devel/libtool/libtool-2.2.6.bep
index a0135c4b0..a46284044 100644
--- a/sys-devel/libtool/libtool-2.2.6.bep
+++ b/sys-devel/libtool/libtool-2.2.6.bep
@@ -8,7 +8,7 @@ DEPEND=""
 BUILD {
 	cd libtool-2.2.6
 	./bootstrap
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/sys-devel/libtool/libtool-2.2.6b.bep b/sys-devel/libtool/libtool-2.2.6b.bep
index d2625a7ba..3a01a619b 100644
--- a/sys-devel/libtool/libtool-2.2.6b.bep
+++ b/sys-devel/libtool/libtool-2.2.6b.bep
@@ -8,7 +8,7 @@ DEPEND=""
 BUILD {
 	cd libtool-2.2.6b
 	./bootstrap
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/sys-devel/libtool/libtool-2.2.7b.bep b/sys-devel/libtool/libtool-2.2.7b.bep
index 73b77ca94..ad993d0e5 100644
--- a/sys-devel/libtool/libtool-2.2.7b.bep
+++ b/sys-devel/libtool/libtool-2.2.7b.bep
@@ -8,7 +8,7 @@ DEPEND=""
 BUILD {
 	cd libtool-2.2.7b
 	./bootstrap
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/sys-devel/libtool/libtool-2.2.8.bep b/sys-devel/libtool/libtool-2.2.8.bep
index 9ef7d80cb..0852590af 100644
--- a/sys-devel/libtool/libtool-2.2.8.bep
+++ b/sys-devel/libtool/libtool-2.2.8.bep
@@ -8,7 +8,7 @@ DEPEND=""
 BUILD {
 	cd libtool-2.2.8
 	./bootstrap
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/sys-devel/libtool/libtool-2.2.x.bep b/sys-devel/libtool/libtool-2.2.x.bep
index c4c27b294..63c7968cd 100644
--- a/sys-devel/libtool/libtool-2.2.x.bep
+++ b/sys-devel/libtool/libtool-2.2.x.bep
@@ -9,7 +9,7 @@ DEPEND=""
 BUILD {
 	cd libtool-2.2.x
 	./bootstrap
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/sys-devel/m4/m4-1.4.14.bep b/sys-devel/m4/m4-1.4.14.bep
index 6cd9eb5e2..b073d07f3 100644
--- a/sys-devel/m4/m4-1.4.14.bep
+++ b/sys-devel/m4/m4-1.4.14.bep
@@ -8,7 +8,7 @@ DEPEND=""
 
 BUILD {
 	cd m4-1.4.14
-	./configure --prefix=/boot/common --enable-changeword
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY` --enable-changeword
 	make
 }
 
diff --git a/sys-libs/ncurses/ncurses-5.6.bep b/sys-libs/ncurses/ncurses-5.6.bep
index 1cd67aeb6..f6cfbfc8e 100644
--- a/sys-libs/ncurses/ncurses-5.6.bep
+++ b/sys-libs/ncurses/ncurses-5.6.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND=""
 BUILD {
 	cd ncurses-5.6
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/sys-libs/ncurses/ncurses-5.7.bep b/sys-libs/ncurses/ncurses-5.7.bep
index aea58044f..d154378ce 100644
--- a/sys-libs/ncurses/ncurses-5.7.bep
+++ b/sys-libs/ncurses/ncurses-5.7.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND=""
 BUILD {
 	cd ncurses-5.7
-	./configure --prefix=/boot/common --with-libtool
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY` --with-libtool
 	make
 }
 
diff --git a/sys-libs/readline/readline-5.2.bep b/sys-libs/readline/readline-5.2.bep
index d0553a60c..b719e2061 100644
--- a/sys-libs/readline/readline-5.2.bep
+++ b/sys-libs/readline/readline-5.2.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND=""
 BUILD {
 	cd readline-5.2
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/sys-libs/slang/slang-2.2.2.bep b/sys-libs/slang/slang-2.2.2.bep
index 9ac8ae01b..f4d426ba4 100644
--- a/sys-libs/slang/slang-2.2.2.bep
+++ b/sys-libs/slang/slang-2.2.2.bep
@@ -11,7 +11,7 @@ BUILD {
 	cp autoconf/config.guess config.guess
 	cd ..
 	sed -i -e '/^TERMCAP=/s:=.*:=:' configure || die
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/sys-libs/zlib/zlib-1.2.3.bep b/sys-libs/zlib/zlib-1.2.3.bep
index e08a18264..a3c5eb7c3 100644
--- a/sys-libs/zlib/zlib-1.2.3.bep
+++ b/sys-libs/zlib/zlib-1.2.3.bep
@@ -7,7 +7,7 @@ STATUS_HAIKU="stable"
 DEPEND=""
 BUILD {
 	cd zlib-1.2.3
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/www-client/netsurf/netsurf-2.1.bep b/www-client/netsurf/netsurf-2.1.bep
index 28d699620..f0b6e91df 100644
--- a/www-client/netsurf/netsurf-2.1.bep
+++ b/www-client/netsurf/netsurf-2.1.bep
@@ -18,30 +18,30 @@ BUILD {
 	cd libparserutils
 	echo 'CFLAGS += -DWITH_ICONV_FILTER' > Makefile.config.override 
 	make
-	make install PREFIX=/boot/common
+	make install PREFIX=`findir B_COMMON_BIN_DIRECTORY`
 	cd ../libwapcaplet
 	make
-	make install PREFIX=/boot/common
+	make install PREFIX=`findir B_COMMON_BIN_DIRECTORY`
 	cd ../hubbub
 	make
-	make install PREFIX=/boot/common	
+	make install PREFIX=`findir B_COMMON_BIN_DIRECTORY`	
 	cd ../libcss
 	make
-	make install PREFIX=/boot/common
+	make install PREFIX=`findir B_COMMON_BIN_DIRECTORY`
 	cd ../libnsgif
 	make
-	make install PREFIX=/boot/common
+	make install PREFIX=`findir B_COMMON_BIN_DIRECTORY`
 	cd ../libnsbmp
 	make
-	make install PREFIX=/boot/common
+	make install PREFIX=`findir B_COMMON_BIN_DIRECTORY`
 	cd ../librosprite
 	make
-	make install PREFIX=/boot/common
+	make install PREFIX=`findir B_COMMON_BIN_DIRECTORY`
 	cd ../libsvgtiny
 	make
-	make install PREFIX=/boot/common
+	make install PREFIX=`findir B_COMMON_BIN_DIRECTORY`
 	cd ..
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/www-client/netsurf/netsurf-2.6.bep b/www-client/netsurf/netsurf-2.6.bep
index 463eb5d59..f36169345 100644
--- a/www-client/netsurf/netsurf-2.6.bep
+++ b/www-client/netsurf/netsurf-2.6.bep
@@ -18,29 +18,29 @@ BUILD {
 	cd libparserutils
 	echo 'CFLAGS += -DWITH_ICONV_FILTER' > Makefile.config.override 
 	make
-	make install PREFIX=/boot/common
+	make install PREFIX=`findir B_COMMON_BIN_DIRECTORY`
 	cd ../libwapcaplet
 	make
-	make install PREFIX=/boot/common
+	make install PREFIX=`findir B_COMMON_BIN_DIRECTORY`
 	cd ../hubbub
 	make
-	make install PREFIX=/boot/common	
+	make install PREFIX=`findir B_COMMON_BIN_DIRECTORY`	
 	cd ../libcss
 	make
-	make install PREFIX=/boot/common
+	make install PREFIX=`findir B_COMMON_BIN_DIRECTORY`
 	cd ../libnsgif
 	make
-	make install PREFIX=/boot/common
+	make install PREFIX=`findir B_COMMON_BIN_DIRECTORY`
 	cd ../libnsbmp
 	make
-	make install PREFIX=/boot/common
+	make install PREFIX=`findir B_COMMON_BIN_DIRECTORY`
 	cd ../libsvgtiny
 	make
-	make install PREFIX=/boot/common
+	make install PREFIX=`findir B_COMMON_BIN_DIRECTORY`
 	cd ../librosprite
 	patch -p0 -ui ../../../patches/librosprite.patch
 	make
-	make install PREFIX=/boot/common
+	make install PREFIX=`findir B_COMMON_BIN_DIRECTORY`
 	cd ..	
 	make beos
 }
diff --git a/www-client/netsurf/netsurf-2.7-svn.bep b/www-client/netsurf/netsurf-2.7-svn.bep
index 31d5efd1b..7bfc26b85 100644
--- a/www-client/netsurf/netsurf-2.7-svn.bep
+++ b/www-client/netsurf/netsurf-2.7-svn.bep
@@ -38,7 +38,7 @@ BUILD {
 	make install PREFIX=`finddir B_COMMON_DIRECTORY`
 	cd ../librosprite
 	make CFLAGS=""
-	make install PREFIX=/boot/common
+	make install PREFIX=`findir B_COMMON_BIN_DIRECTORY`
 	cd ..	
 	make beos
 }
diff --git a/www-client/netsurf/netsurf-9799.bep b/www-client/netsurf/netsurf-9799.bep
index 2d2f5b525..cd6d951a1 100644
--- a/www-client/netsurf/netsurf-9799.bep
+++ b/www-client/netsurf/netsurf-9799.bep
@@ -20,28 +20,28 @@ BUILD {
 	cd libparserutils
 	echo 'CFLAGS += -DWITH_ICONV_FILTER' > Makefile.config.override 
 	make
-	make install PREFIX=/boot/common
+	make install PREFIX=`findir B_COMMON_BIN_DIRECTORY`
 	cd ../libwapcaplet
 	make
-	make install PREFIX=/boot/common
+	make install PREFIX=`findir B_COMMON_BIN_DIRECTORY`
 	cd ../hubbub
 	make
-	make install PREFIX=/boot/common	
+	make install PREFIX=`findir B_COMMON_BIN_DIRECTORY`	
 	cd ../libcss
 	make
-	make install PREFIX=/boot/common
+	make install PREFIX=`findir B_COMMON_BIN_DIRECTORY`
 	cd ../libnsgif
 	make
-	make install PREFIX=/boot/common
+	make install PREFIX=`findir B_COMMON_BIN_DIRECTORY`
 	cd ../libnsbmp
 	make
-	make install PREFIX=/boot/common
+	make install PREFIX=`findir B_COMMON_BIN_DIRECTORY`
 #	cd ../librosprite
 #	make
-#	make install PREFIX=/boot/common
+#	make install PREFIX=`findir B_COMMON_BIN_DIRECTORY`
 	cd ../libsvgtiny
 	make
-	make install PREFIX=/boot/common
+	make install PREFIX=`findir B_COMMON_BIN_DIRECTORY`
 	cd ..
 	make
 }
diff --git a/x11-libs/cairo/cairo-1.10.0.bep b/x11-libs/cairo/cairo-1.10.0.bep
index 36c359c48..87a03180a 100644
--- a/x11-libs/cairo/cairo-1.10.0.bep
+++ b/x11-libs/cairo/cairo-1.10.0.bep
@@ -13,7 +13,7 @@ BUILD {
 	aclocal -I build
 	autoconf
 	automake
-	./configure --prefix=/boot/common --enable-beos
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY` --enable-beos
 	make
 }
 
diff --git a/x11-libs/cairo/cairo-1.8.10.bep b/x11-libs/cairo/cairo-1.8.10.bep
index 1fa640d51..1207ac22f 100644
--- a/x11-libs/cairo/cairo-1.8.10.bep
+++ b/x11-libs/cairo/cairo-1.8.10.bep
@@ -13,7 +13,7 @@ BUILD {
 	aclocal -I build
 	autoconf
 	automake
-	./configure --prefix=/boot/common --enable-beos
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY` --enable-beos
 	make
 }
 
diff --git a/x11-libs/libX11/libX11-1.3.3.bep b/x11-libs/libX11/libX11-1.3.3.bep
index 6d4c0240c..7df1b4d49 100644
--- a/x11-libs/libX11/libX11-1.3.3.bep
+++ b/x11-libs/libX11/libX11-1.3.3.bep
@@ -19,7 +19,7 @@ BUILD {
 	cd libX11-1.3.3
 	libtoolize --force --copy --install
 	autoreconf -i
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/x11-libs/libXau/libXau-1.0.5.bep b/x11-libs/libXau/libXau-1.0.5.bep
index ad41e327a..5040316f2 100644
--- a/x11-libs/libXau/libXau-1.0.5.bep
+++ b/x11-libs/libXau/libXau-1.0.5.bep
@@ -10,7 +10,7 @@ BUILD {
 	cd libXau-1.0.5
 	libtoolize --force --copy --install
 	autoreconf -i
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/x11-libs/libxcb/libxcb-1.6.bep b/x11-libs/libxcb/libxcb-1.6.bep
index 997032721..085998117 100644
--- a/x11-libs/libxcb/libxcb-1.6.bep
+++ b/x11-libs/libxcb/libxcb-1.6.bep
@@ -14,7 +14,7 @@ BUILD {
 	cd libxcb-1.6
 	libtoolize --force --copy --install
 	./autogen.sh
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 }
 
 INSTALL {
diff --git a/x11-libs/pango/pango-1.28.1.bep b/x11-libs/pango/pango-1.28.1.bep
index 4d9cfe6b1..e54f308a8 100644
--- a/x11-libs/pango/pango-1.28.1.bep
+++ b/x11-libs/pango/pango-1.28.1.bep
@@ -15,7 +15,7 @@ DEPEND="pkgconfig >= 0.23
 BUILD {
 	cd pango-1.28.1
 	./autogen.sh
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/x11-libs/pixman/pixman-0.17.2.bep b/x11-libs/pixman/pixman-0.17.2.bep
index 0345029cc..22c58b2cc 100644
--- a/x11-libs/pixman/pixman-0.17.2.bep
+++ b/x11-libs/pixman/pixman-0.17.2.bep
@@ -11,7 +11,7 @@ BUILD {
 	aclocal 
 	automake
 	autoconf
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make 
 }
 
diff --git a/x11-libs/pixman/pixman-0.18.2.bep b/x11-libs/pixman/pixman-0.18.2.bep
index 39367049d..1d02e60f5 100644
--- a/x11-libs/pixman/pixman-0.18.2.bep
+++ b/x11-libs/pixman/pixman-0.18.2.bep
@@ -11,7 +11,7 @@ BUILD {
 	aclocal 
 	automake
 	autoconf
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make 
 }
 
diff --git a/x11-libs/pixman/pixman-0.18.4.bep b/x11-libs/pixman/pixman-0.18.4.bep
index c31a522b4..ea4e1943a 100644
--- a/x11-libs/pixman/pixman-0.18.4.bep
+++ b/x11-libs/pixman/pixman-0.18.4.bep
@@ -11,7 +11,7 @@ BUILD {
 	aclocal 
 	automake
 	autoconf
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make 
 }
 
diff --git a/x11-libs/pixman/pixman-0.19-master.bep b/x11-libs/pixman/pixman-0.19-master.bep
index 187ba483f..c8e5e5a55 100644
--- a/x11-libs/pixman/pixman-0.19-master.bep
+++ b/x11-libs/pixman/pixman-0.19-master.bep
@@ -9,7 +9,7 @@ BUILD {
 	cd pixman-master
 	libtoolize --force --copy --install
 	./autogen.sh
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make 
 }
 
diff --git a/x11-libs/pixman/pixman-0.19.4.bep b/x11-libs/pixman/pixman-0.19.4.bep
index 96a1ca754..d53fddeab 100644
--- a/x11-libs/pixman/pixman-0.19.4.bep
+++ b/x11-libs/pixman/pixman-0.19.4.bep
@@ -9,7 +9,7 @@ BUILD {
 	cd pixman-0.19.4
 	libtoolize --force --copy --install
 	./autogen.sh
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make 
 }
 
diff --git a/x11-libs/pixman/pixman-0.20.0.bep b/x11-libs/pixman/pixman-0.20.0.bep
index 869613857..dc7197a91 100644
--- a/x11-libs/pixman/pixman-0.20.0.bep
+++ b/x11-libs/pixman/pixman-0.20.0.bep
@@ -10,7 +10,7 @@ BUILD {
 	libtoolize --force --copy --install
 	aclocal
 	autoconf
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make 
 }
 
diff --git a/x11-libs/xtrans/xtrans-1.2.5.bep b/x11-libs/xtrans/xtrans-1.2.5.bep
index 7dc2fc7b4..497b6da38 100644
--- a/x11-libs/xtrans/xtrans-1.2.5.bep
+++ b/x11-libs/xtrans/xtrans-1.2.5.bep
@@ -11,7 +11,7 @@ BUILD {
 	cd xtrans-1.2.5
 	libtoolize --force --copy --install
 	autoreconf -i
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 }
 
 INSTALL {
diff --git a/x11-misc/util-macros/util-macros-1.7.0.bep b/x11-misc/util-macros/util-macros-1.7.0.bep
index be4c04899..b834b293b 100644
--- a/x11-misc/util-macros/util-macros-1.7.0.bep
+++ b/x11-misc/util-macros/util-macros-1.7.0.bep
@@ -8,7 +8,7 @@ DEPEND=""
 BUILD {
 	cd util-macros-1.7.0
 	libtoolize --force --copy --install
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 }
 
 INSTALL {
diff --git a/x11-proto/inputproto/inputproto-2.0.bep b/x11-proto/inputproto/inputproto-2.0.bep
index 76620d5e9..ee0cc91b4 100644
--- a/x11-proto/inputproto/inputproto-2.0.bep
+++ b/x11-proto/inputproto/inputproto-2.0.bep
@@ -10,7 +10,7 @@ BUILD {
 	cd inputproto-2.0
 	libtoolize --force --copy --install
 	autoreconf -i
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 }
 
 INSTALL {
diff --git a/x11-proto/kbproto/kbproto-1.0.4.bep b/x11-proto/kbproto/kbproto-1.0.4.bep
index a7a601771..fba25ca43 100644
--- a/x11-proto/kbproto/kbproto-1.0.4.bep
+++ b/x11-proto/kbproto/kbproto-1.0.4.bep
@@ -10,7 +10,7 @@ BUILD {
 	cd kbproto-1.0.4
 	libtoolize --force --copy --install
 	autoreconf -i
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 }
 
 INSTALL {
diff --git a/x11-proto/xcb-proto/xcb-proto-1.6.bep b/x11-proto/xcb-proto/xcb-proto-1.6.bep
index 0798f940c..2c30fdf2b 100644
--- a/x11-proto/xcb-proto/xcb-proto-1.6.bep
+++ b/x11-proto/xcb-proto/xcb-proto-1.6.bep
@@ -10,7 +10,7 @@ BUILD {
 	cd xcb-proto-1.6
 	libtoolize --force --copy --install
 	autoreconf -i
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 	make
 }
 
diff --git a/x11-proto/xextproto/xextproto-7.1.1.bep b/x11-proto/xextproto/xextproto-7.1.1.bep
index 2f7b83e86..e5e4ed10b 100644
--- a/x11-proto/xextproto/xextproto-7.1.1.bep
+++ b/x11-proto/xextproto/xextproto-7.1.1.bep
@@ -10,7 +10,7 @@ BUILD {
 	cd xextproto-7.1.1
 	libtoolize --force --copy --install
 	autoreconf -i
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 }
 
 INSTALL {
diff --git a/x11-proto/xproto/xproto-7.0.16.bep b/x11-proto/xproto/xproto-7.0.16.bep
index 5a13c71ed..55cd21a97 100644
--- a/x11-proto/xproto/xproto-7.0.16.bep
+++ b/x11-proto/xproto/xproto-7.0.16.bep
@@ -9,7 +9,7 @@ BUILD {
 	cd xproto-7.0.16
 	libtoolize --force --copy --install
 	autoreconf -i
-	./configure --prefix=/boot/common
+	./configure --prefix=`findir B_COMMON_BIN_DIRECTORY`
 }
 
 INSTALL {