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Greg Jandl to SDL

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I did some digging, and I think I've found a better solution. By
including some additional .m4 macros in the acinclude directory
(http://www.gnu.org/software/autoconf-archive/ax_check_compiler_flags.html,
http://www.gnu.org/software/autoconf-archive/ax_gcc_archflag.html and
http://www.gnu.org/software/autoconf-archive/ax_gcc_x86_cpuid.html)
then using the patch below (same as previous patch + one line change
to configure.in), SDL will build correctly out of the box.

The arch can then be overridden by --with-gcc-arch=<arch> (most will
probably want to build with i686 there for general distribution) or
--without-gcc-arch, to disable setting the arch all together.

On my Atom netbook, I get -march=PentiumPro by default, which works
great, as does --with-gcc-arch=i686.
This commit is contained in:
Sam Lantinga 2011-01-18 22:40:45 -08:00
parent 5601ecaeae
commit b3dd448c5c
4 changed files with 371 additions and 0 deletions
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1
configure.in
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@ -48,6 +48,7 @@ AC_SUBST(LT_AGE)
dnl Detect the canonical build and host environments
dnl AC_CANONICAL_HOST
AX_GCC_ARCHFLAG([no])
dnl Check for tools
AC_PROG_LIBTOOL