powerpc: enhance 32/64bit detection
We were using uname to determine if userspace was 32 or 64bit.
This fails when we have a 64bit kernel and a 32bit userspace.
* configure.ac (powerpc*): Similar to x86, use a runtime test
to determine if we are 32 or 64bit.
Signed-off-by: Anton Blanchard <anton@samba.org>
diff --git a/configure.ac b/configure.ac
index 03e49fe..b3b62e8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -54,7 +54,11 @@
powerpc*)
arch=powerpc
AC_DEFINE([POWERPC], 1, [Define for the PowerPC architecture.])
- if test $host_cpu = powerpc64; then
+ AC_TRY_COMPILE(
+[#ifndef __LP64__
+# error 32 bit
+#endif], [], ppc_bits=64, ppc_bits=32)
+ if test "$ppc_bits" = "64"; then
AC_DEFINE([POWERPC64], 1, [Define for the PowerPC64 architecture.])
fi
;;