Hi!
Currently check_effective_target_lto properly works only in gcc/testsuite/ dir,
since it checks for ENABLE_LTO, which is defined in gcc/configure.ac.
But it doesn't work in other subdirectories, e.g. in libgomp/testsuite/.
This patch fixes it.
make check and check-target-libgomp passed with/without --disable-lto on
x86_64-linux. OK for trunk?
gcc/testsuite/
* lib/target-supports.exp (check_effective_target_lto): Check for -flto
option support instead of ENABLE_LTO define from configure.
diff --git a/gcc/testsuite/lib/target-supports.exp
b/gcc/testsuite/lib/target-supports.exp
index 119d2c5..4140505 100644
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -5729,11 +5729,12 @@ proc check_effective_target_gld { } {
# (LTO) support.
proc check_effective_target_lto { } {
- global ENABLE_LTO
if { [istarget nvptx-*-*] } {
return 0;
}
- return [info exists ENABLE_LTO]
+ return [check_no_compiler_messages lto object {
+ void foo (void) { }
+ } "-flto"]
}
# Return 1 if -mx32 -maddress-mode=short can compile, 0 otherwise.
-- Ilya
