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Add -fno-strict-aliasing workaround for Linux GCC targets

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Most Linux distros work around aliasing problems in Mesa by compiling
with the GCC option -fno-strict-aliasing. Two examples:

  https://bugs.freedesktop.org/show_bug.cgi?id=6046
  http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=394311

This makes -fno-strict-aliasing the default with a comment that
developers should consider commenting it out. There is a already a note
about these bugs in docs/helpwanted.html.
This commit is contained in:
Dan Nicholson
2007-10-31 09:47:39 -07:00
parent 2bdd467dfd
commit 013dbcd611
15 changed files with 48 additions and 0 deletions
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configs/linux-glide
+3
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@@ -12,6 +12,9 @@ CFLAGS = -O3 -ansi -pedantic -fPIC -ffast-math -D_POSIX_SOURCE -D_POSIX_C_SOURCE
CXXFLAGS = -O3 -ansi -pedantic -fPIC -ffast-math -D_POSIX_SOURCE -D_POSIX_C_SOURCE=199309L -D_SVID_SOURCE -D_BSD_SOURCE
GLUT_CFLAGS = -fexceptions
# Work around aliasing bugs - developers should comment this out
CFLAGS += -fno-strict-aliasing
CXXFLAGS += -fno-strict-aliasing
# Library/program dependencies
GL_LIB_DEPS = -L/usr/X11R6/lib -lX11 -lXext -L/usr/local/glide/lib -lglide3x -lm -lpthread