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(svn r21436) -Fix: LTO was no longer detected for GCC 4.6

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smatz 2010-12-08 14:39:31 +00:00
parent ac0e83a7e2
commit aa4251b4ed
1 changed files with 4 additions and 2 deletions
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6
config.lib
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@ -622,7 +622,8 @@ check_params() {
fi fi
if [ "$enable_lto" != "0" ]; then if [ "$enable_lto" != "0" ]; then
has_lto=`($cxx_build -dumpspecs 2>&1 | grep '\%{flto}') || ($cxx_build -help ipo 2>&1 | grep '\-ipo')` # GCC 4.5 outputs '%{flto}', GCC 4.6 outputs '%{flto*}'
has_lto=`($cxx_build -dumpspecs 2>&1 | grep '\%{flto') || ($cxx_build -help ipo 2>&1 | grep '\-ipo')`
if [ -n "$has_lto" ]; then if [ -n "$has_lto" ]; then
log 1 "using link time optimization... yes" log 1 "using link time optimization... yes"
else else
@ -1290,7 +1291,8 @@ make_compiler_cflags() {
fi fi
if [ "$enable_lto" != "0" ]; then if [ "$enable_lto" != "0" ]; then
has_lto=`$1 -dumpspecs | grep '\%{flto}'` # GCC 4.5 outputs '%{flto}', GCC 4.6 outputs '%{flto*}'
has_lto=`$1 -dumpspecs | grep '\%{flto'`
if [ -n "$has_lto" ]; then if [ -n "$has_lto" ]; then
# Use LTO only if we see LTO exists and is requested # Use LTO only if we see LTO exists and is requested
flags="$flags -flto" flags="$flags -flto"