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Enable altivec blitters on PowerPC Linux, and some fixes for recent

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GCCs versions.

--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%401165
This commit is contained in:
Ryan C. Gordon 2005-10-20 06:55:26 +00:00
parent dba88d23b2
commit 47107f28ba
4 changed files with 282 additions and 232 deletions
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29
configure.in
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@ -1910,11 +1910,16 @@ CheckUSBHID()
dnl Check for altivec instruction support using gas syntax
CheckAltivec()
{
AC_MSG_CHECKING(for GCC Altivec instruction support)
have_gcc_altivec=no
dnl FIXME: Theoretically, you might not have altivec.h, we should check
dnl FIXME: that seperately, but I think all major platforms have it
dnl FIXME: at the moment... --ryan.
save_CFLAGS="${CFLAGS}"
CFLAGS="${CFLAGS} -DGCC_ALTIVEC -DUSE_ALTIVEC_BLITTERS -faltivec"
have_gcc_altivec=no
AC_MSG_CHECKING(for Altivec with GCC -maltivec option)
CFLAGS="${save_CFLAGS} -DGCC_ALTIVEC -DUSE_ALTIVEC_BLITTERS -maltivec"
AC_TRY_COMPILE([
#include <altivec.h>
vector unsigned int vzero() {
return vec_splat_u32(0);
}
@ -1922,10 +1927,26 @@ CheckAltivec()
],[
have_gcc_altivec=yes
])
AC_MSG_RESULT($have_gcc_altivec)
if test x$have_gcc_altivec = xno; then
AC_MSG_CHECKING(for Altivec with GCC -faltivec option)
CFLAGS="${CFLAGS} -DGCC_ALTIVEC -DUSE_ALTIVEC_BLITTERS -faltivec"
AC_TRY_COMPILE([
#include <altivec.h>
vector unsigned int vzero() {
return vec_splat_u32(0);
}
],[
],[
have_gcc_altivec=yes
])
AC_MSG_RESULT($have_gcc_altivec)
fi
if test x$have_gcc_altivec = xno; then
CFLAGS="${save_CFLAGS}"
fi
AC_MSG_RESULT($have_gcc_altivec)
}
dnl Check for a valid linux/version.h