linux-pcc: make it more robust and recognize KERNEL_BITS variable.

1 files changed, 13 insertions, 6 deletions

diff --git a/config b/config
index bebaef2308..fd4b1984a5 100755
--- a/config
+++ b/config
@@ -587,13 +587,20 @@ case "$GUESSOS" in
 	fi
 	;;
   ppc64-*-linux2)
-	echo "WARNING! If you wish to build 64-bit library, then you have to"
-	echo "         invoke './Configure linux-ppc64' *manually*."
-	if [ "$TEST" = "false" -a -t 1 ]; then
-	    echo "         You have about 5 seconds to press Ctrl-C to abort."
-	    (trap "stty `stty -g`" 2 0; stty -icanon min 0 time 50; read waste) <&1
+	if [ -z "$KERNEL_BITS" ]; then
+	    echo "WARNING! If you wish to build 64-bit library, then you have to"
+	    echo "         invoke './Configure linux-ppc64' *manually*."
+	    if [ "$TEST" = "false" -a -t 1 ]; then
+		echo "         You have about 5 seconds to press Ctrl-C to abort."
+		(trap "stty `stty -g`" 2 0; stty -icanon min 0 time 50; read waste) <&1
+	    fi
+	fi
+	if [ "$KERNEL_BITS" = "64" ]; then
+	    OUT="linux-ppc64"
+	else
+	    OUT="linux-ppc"
+	    (echo "__LP64__" | gcc -E -x c - 2>/dev/null | grep "^__LP64__" 2>&1 > /dev/null) || options="$options -m32"
 	fi
-	OUT="linux-ppc"
 	;;
   ppc-*-linux2) OUT="linux-ppc" ;;
   mips64*-*-linux2)