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Support GCC 4.3's include-fixed directory
- From: "Joseph S. Myers" <joseph at codesourcery dot com>
- To: libc-alpha at sourceware dot org
- Date: Sun, 18 Mar 2007 20:40:59 +0000 (UTC)
- Subject: Support GCC 4.3's include-fixed directory
GCC trunk now has multiple internal headers directories, one
containing the self-contained GCC-provided headers and one containing
the <limits.h> (not self-contained but including libc's <limits.h> or
a fixed version thereof) and the fixed headers; more such directories
may be added in future.
When glibc uses -nostdinc, it needs to use -isystem options for all
these internal directories. This patch teaches it about the
include-fixed directory (and is harmless with old GCC versions without
that directory).
2007-03-18 Joseph Myers <joseph@codesourcery.com>
* configure.in: Also pass -isystem option for GCC's include-fixed
directory.
* configure: Regenerate.
Index: configure.in
===================================================================
RCS file: /cvs/glibc/libc/configure.in,v
retrieving revision 1.468
diff -u -r1.468 configure.in
--- configure.in 17 Mar 2007 17:01:46 -0000 1.468
+++ configure.in 18 Mar 2007 20:35:03 -0000
@@ -912,7 +912,7 @@
# thing on a system that doesn't need fixincludes. (Not presently a problem.)
if test -n "$sysheaders"; then
ccheaders=`$CC -print-file-name=include`
- SYSINCLUDES="-nostdinc -isystem $ccheaders \
+ SYSINCLUDES="-nostdinc -isystem $ccheaders -isystem $ccheaders-fixed \
-isystem `echo $sysheaders | sed 's/:/ -isystem /g'`"
if test -n "$CXX"; then
cxxversion=`$CXX -dumpversion 2>&AS_MESSAGE_LOG_FD` &&
--
Joseph S. Myers
joseph@codesourcery.com