diff --git a/dkarm-eabi/scripts/build-gcc.sh b/dkarm-eabi/scripts/build-gcc.sh
index 41e1ff4..aff06a3 100755
--- a/dkarm-eabi/scripts/build-gcc.sh
+++ b/dkarm-eabi/scripts/build-gcc.sh
@@ -1,6 +1,10 @@
 #!/bin/sh
 #---------------------------------------------------------------------------------
 
+numcores=`getconf _NPROCESSORS_ONLN`
+
+numjobs=$(($numcores * 2 + 1))
+
 #---------------------------------------------------------------------------------
 # build and install binutils
 #---------------------------------------------------------------------------------
@@ -20,7 +24,7 @@ fi
 
 if [ ! -f built-binutils ]
 then
-  $MAKE || { echo "Error building binutils"; exit 1; }
+  $MAKE -j$numjobs || { echo "Error building binutils"; exit 1; }
   touch built-binutils
 fi
 
@@ -64,7 +68,7 @@ fi
 
 if [ ! -f built-gcc ]
 then
-	$MAKE all-gcc || { echo "Error building gcc stage1"; exit 1; }
+	$MAKE all-gcc -j$numjobs || { echo "Error building gcc stage1"; exit 1; }
 	touch built-gcc
 fi
 
@@ -97,7 +101,7 @@ fi
 
 if [ ! -f built-newlib ]
 then
-	$MAKE || { echo "Error building newlib"; exit 1; }
+	$MAKE -j$numjobs || { echo "Error building newlib"; exit 1; }
 	touch built-newlib
 fi
 
@@ -118,7 +122,7 @@ cd $target/gcc
 
 if [ ! -f built-stage2 ]
 then
-	$MAKE all || { echo "Error building gcc stage2"; exit 1; }
+	$MAKE all -j$numjobs || { echo "Error building gcc stage2"; exit 1; }
 	touch built-stage2
 fi
 
@@ -152,7 +156,7 @@ fi
 
 if [ ! -f built-gdb ]
 then
-	$MAKE || { echo "Error building gdb"; exit 1; }
+	$MAKE -j$numjobs || { echo "Error building gdb"; exit 1; }
 	touch built-gdb
 fi