Fix configure check for source locations

[Andreas Schwab <schwab@suse.de>]

On ia64 the nop instruction is spelled "nop 0".  Also fixes a missing pair
of parens.

Andreas.

2004-08-11  Andreas Schwab  <schwab@suse.de>

	* configure.in: Fix libc_cv_cpp_asm_debuginfo test for ia64 and
	add missing parens.

--- configure.in	09 Aug 2004 11:13:44 +0200	1.419
+++ configure.in	11 Aug 2004 00:46:18 +0200	
@@ -1669,16 +1669,19 @@ foo:
 	/* Unfortunately this test only works for a real instruction,
 	   not for any of the machine-independent pseudo-ops.
 	   So we just have to assume everybody has a "nop".  */
+#ifdef __ia64__
+#define nop nop 0
+#endif
 	nop
 	/* comment */
 	nop
 	/* comment */
 	nop
 EOF
-if AC_TRY_COMMAND([${CC-cc} $CPPFLAGS $ASFLAGS -g -c conftest.S 1>&AS_MESSAGE_LOG_FD]) &&
+if AC_TRY_COMMAND([${CC-cc} $CPPFLAGS $ASFLAGS -g -c conftest.S 1>&AS_MESSAGE_LOG_FD]) && {
    ac_pattern='conftest\.S'
    AC_TRY_COMMAND([readelf --debug-dump=line conftest.o |
-		   grep $ac_pattern 1>&AS_MESSAGE_LOG_FD]); then
+		   grep $ac_pattern 1>&AS_MESSAGE_LOG_FD]); }; then
   libc_cv_cpp_asm_debuginfo=yes
 else
   libc_cv_cpp_asm_debuginfo=no

-- 
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux AG, Maxfeldstraße 5, 90409 Nürnberg, Germany
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