diff --git a/external/gpl3/binutils/fetch.sh b/external/gpl3/binutils/fetch.sh
index 20c230950..28871c2aa 100644
--- a/external/gpl3/binutils/fetch.sh
+++ b/external/gpl3/binutils/fetch.sh
@@ -23,7 +23,7 @@ then
 		fi
 	fi
 
-	tar -xf binutils-2.17a.tar.bz2 && \
+	bsdtar -oxf binutils-2.17a.tar.bz2 && \
 	mv binutils-2.17 dist && \
 	cd dist && \
 	cat ../../../../tools/binutils/patches/* | patch -p0
diff --git a/external/gpl3/gcc/fetch.sh b/external/gpl3/gcc/fetch.sh
index 91fd3aadb..e0fd30add 100755
--- a/external/gpl3/gcc/fetch.sh
+++ b/external/gpl3/gcc/fetch.sh
@@ -24,7 +24,7 @@ then
 		fi
 	fi
 
-	tar -xf gcc-4.4.3.tar.bz2 && \
+	bsdtar -oxf gcc-4.4.3.tar.bz2 && \
 	mv gcc-4.4.3 dist && \
 	cd dist && \
 	cat ../../../../tools/gcc/patches/* | patch -p0 && \
diff --git a/external/lgpl2/mpc/fetch.sh b/external/lgpl2/mpc/fetch.sh
index 3d51e0a8a..1410fc558 100755
--- a/external/lgpl2/mpc/fetch.sh
+++ b/external/lgpl2/mpc/fetch.sh
@@ -23,7 +23,7 @@ then
 		fi
 	fi
 
-	tar -xf mpc-0.9.tar.gz
+	bsdtar -oxf mpc-0.9.tar.gz
 	mv mpc-0.9 dist
 fi
 
diff --git a/external/lgpl3/gmp/fetch.sh b/external/lgpl3/gmp/fetch.sh
index ae50122e3..f3f6df41c 100755
--- a/external/lgpl3/gmp/fetch.sh
+++ b/external/lgpl3/gmp/fetch.sh
@@ -23,7 +23,7 @@ then
 		fi
 	fi
 
-	tar -xf gmp-5.0.2.tar.bz2
+	bsdtar -oxf gmp-5.0.2.tar.bz2
 	mv gmp-5.0.2 dist
 fi
 
diff --git a/external/lgpl3/mpfr/fetch.sh b/external/lgpl3/mpfr/fetch.sh
index b134bf155..80d79b422 100755
--- a/external/lgpl3/mpfr/fetch.sh
+++ b/external/lgpl3/mpfr/fetch.sh
@@ -23,7 +23,7 @@ then
 		fi
 	fi
 
-	tar -xf mpfr-3.1.0.tar.bz2
+	bsdtar -oxf mpfr-3.1.0.tar.bz2
 	mv mpfr-3.1.0 dist
 fi