win32/build.py: add -march=pentium3 to fix 32 bit LAME build

Workaround for the following LAME build failure: error: inlining failed in call to always_inline '_mm_sqrt_ps': target specific option mismatch This is because the LAME build scripts do not check whether SSE is available; they only check for the presence of the "xmmintrin.h" header. Requiring a Pentium 3 CPU is reasonable enough, and it's the first CPU to feature SSE support.

win32/build.py: add -march=pentium3 to fix 32 bit LAME build
3717fb6c · Max Kellermann · f6abbc01 · 3717fb6c
Commit 3717fb6c authored Aug 31, 2017 by Max Kellermann
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build.py win32/build.py +5 -0

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--- a/win32/build.py
+++ b/win32/build.py
@@ -51,6 +51,11 @@ class CrossGccToolchain:
        self.strip = os.path.join(toolchain_bin, arch + '-strip')

        common_flags = ''
+
+        if not x64:
+            # enable SSE support which is required for LAME
+            common_flags += ' -march=pentium3'
+
        self.cflags = '-O2 -g ' + common_flags
        self.cxxflags = '-O2 -g ' + common_flags
        self.cppflags = '-isystem ' + os.path.join(install_prefix, 'include')