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scons: Fix Haiku binary optimizations 

Haiku targets the Pentium or higher processor.
To ensure compatibility we can do march 586 and
mtune 686. Mesa will still use sse however if
the cpu supports it (and the stack is properly
aligned). These flags only effect the internal
compiler optimizations.
This commit is contained in:
Alexander von Gluck IV 2012-06-14 08:08:07 -07:00
parent c1dcf9665c
commit cb3054c849
1 changed files with 10 additions and 1 deletions
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11
scons/gallium.py
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@ -327,7 +327,8 @@ def generate(env):
#'-march=pentium4',
]
if distutils.version.LooseVersion(ccversion) >= distutils.version.LooseVersion('4.2') \
and (platform != 'windows' or env['build'] == 'debug' or True):
and (platform != 'windows' or env['build'] == 'debug' or True) \
and platform != 'haiku':
# NOTE: We need to ensure stack is realigned given that we
# produce shared objects, and have no control over the stack
# alignment policy of the application. Therefore we need
@ -346,6 +347,14 @@ def generate(env):
if platform in ['windows', 'darwin']:
# Workaround http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37216
ccflags += ['-fno-common']
if platform in ['haiku']:
# Make optimizations compatible with Pentium or higher on Haiku
ccflags += [
'-mstackrealign', # ensure stack is aligned
'-march=i586', # Haiku target is Pentium
'-mtune=i686', # use i686 where we can
'-mmmx' # use mmx math where we can
]
if env['machine'] == 'x86_64':
ccflags += ['-m64']
if platform == 'darwin':