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| author | Thomas Martitz <kugel@rockbox.org> | 2014-01-17 11:14:47 +0100 |
|---|---|---|
| committer | Thomas Martitz <kugel@rockbox.org> | 2014-01-17 11:14:47 +0100 |
| commit | 9d26619465d268dee1e16a8e5318ac19c5a573be (patch) | |
| tree | a8acb37a956736b26997f1096e5cb272ca5d68fb /tools | |
| parent | 33f5fdeadf248793456ce472707890e1f6368cbe (diff) | |
| download | rockbox-9d26619465d268dee1e16a8e5318ac19c5a573be.tar.gz rockbox-9d26619465d268dee1e16a8e5318ac19c5a573be.zip | |
Workarund GCC bug #52991 regarding packet attribute.
According to http://http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52991, since
mingw-gcc 4.7.1 -mms-bitfields is on by default, and this option breaks the
packet attribute since around 4.2.0.
We haven't set this option so I'm assuming we don't need it. Therefore a
workaround in configure can make things work again, because we rely on
the packet attribute in quite a few places.
Change-Id: I8367c16594cecfdde97c548e04607deaa92e21de
Diffstat (limited to 'tools')
| -rwxr-xr-x | tools/configure | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/tools/configure b/tools/configure index cbacbe9e89..1ac644597e 100755 --- a/tools/configure +++ b/tools/configure @@ -258,7 +258,10 @@ simcc () { fibers=`check_fiber` endian="little" # windows is little endian echo "Enabling MMX support" - GCCOPTS="$GCCOPTS -mmmx" + # -mno-ms-bitfields is a workaround for http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52991 + # mingw-gcc >= 4.7 defaults to -mms-bitfields which breaks __attribute__((packed)) + # disable it explicitly for the time being (it doesn't appear to be required for us) + GCCOPTS="$GCCOPTS -mmmx -mno-ms-bitfields" else case $uname in CYGWIN*) |