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-rwxr-xr-xbuild/autoconf/config.guess13
1 files changed, 8 insertions, 5 deletions
diff --git a/build/autoconf/config.guess b/build/autoconf/config.guess
index 28d509201..8fe758339 100755
--- a/build/autoconf/config.guess
+++ b/build/autoconf/config.guess
@@ -381,11 +381,14 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
i86pc:SunOS:5.*:* | i86xen:SunOS:5.*:*)
eval $set_cc_for_build
SUN_ARCH=i386
- # If there is a compiler, see if it is configured for 64-bit objects.
- # Note that the Sun cc does not turn __LP64__ into 1 like gcc does.
- # This test works for both compilers.
- if [ "$CC_FOR_BUILD" != no_compiler_found ]; then
- if (echo '#ifdef __amd64'; echo IS_64BIT_ARCH; echo '#endif') | \
+ _ISAINFO=`isainfo -k 2>/dev/null`
+ if [ "$_ISAINFO" = "amd64" ]; then
+ SUN_ARCH=x86_64
+ elif [ "$CC_FOR_BUILD" != no_compiler_found ]; then
+ # If there is a compiler, see if it is configured for 64-bit objects.
+ # Note that the Sun cc does not turn __LP64__ into 1 like gcc does.
+ # This test works for both compilers.
+ if (echo '#ifdef __amd64'; echo IS_64BIT_ARCH; echo '#endif') | \
(CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | \
grep IS_64BIT_ARCH >/dev/null
then