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authorRichard Guenther <rguenther@suse.de>2010-01-02 14:13:37 +0000
committerRichard Biener <rguenth@gcc.gnu.org>2010-01-02 14:13:37 +0000
commit7413962d04a4f1864db684a2d9a49d043322f299 (patch)
treed3cf010a771c7989f27711166a6e0dcd842e9115 /config/elf.m4
parent04176b913cb2aa24244d340afc3c793fff5c0c25 (diff)
re PR bootstrap/41529 (LTO configuration should detect if the target is ELF)
2010-01-02 Richard Guenther <rguenther@suse.de> PR lto/41529 * configure.ac: Include config/elf.m4. Disable LTO if not builting for an elf target. * configure: Regenerate. config/ * elf.m4: New file. From-SVN: r155565
Diffstat (limited to 'config/elf.m4')
-rw-r--r--config/elf.m427
1 files changed, 27 insertions, 0 deletions
diff --git a/config/elf.m4 b/config/elf.m4
new file mode 100644
index 00000000000..44d02498f24
--- /dev/null
+++ b/config/elf.m4
@@ -0,0 +1,27 @@
+dnl Copyright (C) 2010 Free Software Foundation, Inc.
+dnl This file is free software, distributed under the terms of the GNU
+dnl General Public License. As a special exception to the GNU General
+dnl Public License, this file may be distributed as part of a program
+dnl that contains a configuration script generated by Autoconf, under
+dnl the same distribution terms as the rest of that program.
+
+dnl From Paolo Bonzini.
+
+dnl usage: ACX_ELF_TARGET_IFELSE([if-elf], [if-not-elf])
+AC_DEFUN([ACX_ELF_TARGET_IFELSE], [
+AC_REQUIRE([AC_CANONICAL_TARGET])
+
+target_elf=no
+case $target in
+ *-darwin* | *-aix* | *-cygwin* | *-mingw* | *-aout* | *-*coff* | \
+ *-msdosdjgpp* | *-netware* | *-vms* | *-wince* | *-*-pe* | \
+ alpha*-dec-osf* | *-interix*)
+ target_elf=no
+ ;;
+ *)
+ target_elf=yes
+ ;;
+esac
+
+AS_IF([test $target_elf = yes], [$1], [$2])
+])