allow KERNEL_BITS to be specified in the environment

diff --git a/config b/config
index 2827a458c0b92cf122f9900c474263dd0137ff9f..176644ff8a66a5aa96137795144563bdbdc11baa 100755 (executable)
--- a/config
+++ b/config
@@ -753,7 +753,7 @@ case "$GUESSOS" in
        if [ $CC = "gcc" -a $GCC_BITS = "64" ]; then
            OUT="hpux64-parisc2-gcc"
        fi
-       KERNEL_BITS=`(getconf KERNEL_BITS) 2>/dev/null`
+       [ "$KERNEL_BITS" ] || KERNEL_BITS=`(getconf KERNEL_BITS) 2>/dev/null`
        KERNEL_BITS=${KERNEL_BITS:-32}
        CPU_VERSION=`(getconf CPU_VERSION) 2>/dev/null`
        CPU_VERSION=${CPU_VERSION:-0}
@@ -787,7 +787,7 @@ case "$GUESSOS" in
        options="$options -D_REENTRANT" ;;
   *-hpux)      OUT="hpux-parisc-$CC" ;;
   *-aix)
-       KERNEL_BITS=`(getconf KERNEL_BITMODE) 2>/dev/null`
+       [ "$KERNEL_BITS" ] || KERNEL_BITS=`(getconf KERNEL_BITMODE) 2>/dev/null`
        KERNEL_BITS=${KERNEL_BITS:-32}
        OBJECT_MODE=${OBJECT_MODE:-32}
        if [ "$CC" = "gcc" ]; then