- (dtucker) [configure.ac] On AIX, check to see if the compiler will allow
macro redefinitions, and if not, remove "-qlanglvl=ansi" from the flags.
Allows build out of the box with older VAC and XLC compilers. Found by
David Bronder and Bernhard Simon.
diff --git a/configure.ac b/configure.ac
index cfc5d59..f790f9a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,4 @@
-# $Id: configure.ac,v 1.364 2006/09/12 11:54:11 djm Exp $
+# $Id: configure.ac,v 1.365 2006/09/18 13:17:41 dtucker Exp $
#
# Copyright (c) 1999-2004 Damien Miller
#
@@ -15,7 +15,7 @@
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
AC_INIT(OpenSSH, Portable, openssh-unix-dev@mindrot.org)
-AC_REVISION($Revision: 1.364 $)
+AC_REVISION($Revision: 1.365 $)
AC_CONFIG_SRCDIR([ssh.c])
AC_CONFIG_HEADER(config.h)
@@ -134,6 +134,27 @@
# Check for some target-specific stuff
case "$host" in
*-*-aix*)
+ # Some versions of VAC won't allow macro redefinitions at
+ # -qlanglevel=ansi, and autoconf 2.60 sometimes insists on using that
+ # particularly with older versions of vac or xlc.
+ # It also throws errors about null macro argments, but these are
+ # not fatal.
+ AC_MSG_CHECKING(if compiler allows macro redefinitions)
+ AC_COMPILE_IFELSE(
+ [AC_LANG_SOURCE([[
+#define testmacro foo
+#define testmacro bar
+int main(void) { exit(0); }
+ ]])],
+ [ AC_MSG_RESULT(yes) ],
+ [ AC_MSG_RESULT(no)
+ CC="`echo $CC | sed 's/-qlanglvl\=ansi//g'`"
+ LD="`echo $LD | sed 's/-qlanglvl\=ansi//g'`"
+ CFLAGS="`echo $CFLAGS | sed 's/-qlanglvl\=ansi//g'`"
+ CPPFLAGS="`echo $CPPFLAGS | sed 's/-qlanglvl\=ansi//g'`"
+ ]
+ )
+
AC_MSG_CHECKING([how to specify blibpath for linker ($LD)])
if (test -z "$blibpath"); then
blibpath="/usr/lib:/lib"