diff --git a/dev-libs/icu/icu-4.8.1.1.recipe b/dev-libs/icu/icu-4.8.1.1.recipe
index 440f6c6ad..d08b1cd9a 100644
--- a/dev-libs/icu/icu-4.8.1.1.recipe
+++ b/dev-libs/icu/icu-4.8.1.1.recipe
@@ -28,6 +28,7 @@ BUILD_REQUIRES="
 	"
 BUILD_PREREQUIRES="
 	haiku${secondaryArchSuffix}_devel >= $haikuVersion
+	cmd:awk
 	cmd:gcc$secondaryArchSuffix
 	cmd:ld$secondaryArchSuffix
 	cmd:make
diff --git a/sys-devel/binutils/binutils-2.23.2_2013_04_09.recipe b/sys-devel/binutils/binutils-2.23.2_2013_04_09.recipe
index a46e0ce23..4ff223f07 100644
--- a/sys-devel/binutils/binutils-2.23.2_2013_04_09.recipe
+++ b/sys-devel/binutils/binutils-2.23.2_2013_04_09.recipe
@@ -48,6 +48,8 @@ BUILD_REQUIRES="
 BUILD_PREREQUIRES="
 	haiku${secondaryArchSuffix}_devel >= $haikuVersion
 	cmd:autoconf
+	cmd:awk
+	cmd:find
 	cmd:flex
 	cmd:gcc$secondaryArchSuffix
 	cmd:ld$secondaryArchSuffix
@@ -56,6 +58,7 @@ BUILD_PREREQUIRES="
 	cmd:sed
 	cmd:strip
 	cmd:tar
+	cmd:xargs
 	"
 
 SOURCE_DIR="binutils-$portVersion/binutils"
diff --git a/sys-devel/gcc/gcc-4.8.2_2014_01_28.recipe b/sys-devel/gcc/gcc-4.8.2_2014_01_28.recipe
index be8a261dc..00a6a525e 100644
--- a/sys-devel/gcc/gcc-4.8.2_2014_01_28.recipe
+++ b/sys-devel/gcc/gcc-4.8.2_2014_01_28.recipe
@@ -41,6 +41,8 @@ BUILD_REQUIRES="
 BUILD_PREREQUIRES="
 	haiku${secondaryArchSuffix}_devel >= $haikuVersion
 	cmd:autoconf
+	cmd:awk
+	cmd:find
 	cmd:flex
 	cmd:gcc$secondaryArchSuffix
 	cmd:ld$secondaryArchSuffix
@@ -49,6 +51,7 @@ BUILD_PREREQUIRES="
 	cmd:sed
 	cmd:strip
 	cmd:tar
+	cmd:xargs
 	"
 
 SOURCE_DIR="gcc-$portVersion/gcc"
diff --git a/sys-devel/libtool/libtool-2.4.2.recipe b/sys-devel/libtool/libtool-2.4.2.recipe
index 3796cd4ad..3145a9917 100644
--- a/sys-devel/libtool/libtool-2.4.2.recipe
+++ b/sys-devel/libtool/libtool-2.4.2.recipe
@@ -34,6 +34,7 @@ BUILD_REQUIRES="
 	"
 BUILD_PREREQUIRES="
 	haiku_devel >= $haikuVersion
+	cmd:find
 	cmd:aclocal
 	cmd:autoconf >= 2.62
 	cmd:autoheader >= 2.62
@@ -43,6 +44,7 @@ BUILD_PREREQUIRES="
 	cmd:nm
 	cmd:ranlib
 	cmd:sed
+	cmd:xargs
 	"