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| author | smatz <smatz@openttd.org> | 2012-11-11 17:39:54 +0000 |
|---|---|---|
| committer | smatz <smatz@openttd.org> | 2012-11-11 17:39:54 +0000 |
| commit | 75e20fd02b75d6236a6da0f61478ea06a9bcd8b6 (patch) | |
| tree | 5af6172aeb7e2c539eea40d304958721e99b220c | |
| parent | 03736af2aee50db4e36c2cd9127085630f82cd4b (diff) | |
| download | openttd-75e20fd02b75d6236a6da0f61478ea06a9bcd8b6.tar.xz | |
(svn r24701) -Fix [FS#5246]: Workaround an overoptimisation done by GCC 4.5
| -rw-r--r-- | config.lib | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/config.lib b/config.lib index 55dbc9a16..6f215455a 100644 --- a/config.lib +++ b/config.lib @@ -1350,6 +1350,12 @@ make_compiler_cflags() { cxxflags="$cxxflags -std=gnu++0x" fi + if [ $cc_version -eq 45 ]; then + # Prevent optimisation supposing enums are in a range specified by the standard + # For details, see http://gcc.gnu.org/PR43680 + flags="$flags -fno-tree-vrp" + fi + if [ $cc_version -ge 47 ]; then # Disable -Wnarrowing which gives many warnings, such as: # warning: narrowing conversion of '...' from 'unsigned int' to 'int' inside { } [-Wnarrowing] |