Mercurial > sdl-ios-xcode
diff configure.in @ 1175:867f521591e5
Fixed Altivec support on Mac OS X.
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Thu, 17 Nov 2005 03:43:42 +0000 |
| parents | 8c43aceeed81 |
| children | 19d8949b4584 |
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--- a/configure.in Thu Nov 17 03:16:01 2005 +0000 +++ b/configure.in Thu Nov 17 03:43:42 2005 +0000 @@ -1922,42 +1922,70 @@ dnl Check for altivec instruction support using gas syntax CheckAltivec() { - 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. + have_altivec_h_hdr=no + AC_CHECK_HEADER(altivec.h, have_altivec_h_hdr=yes) save_CFLAGS="${CFLAGS}" have_gcc_altivec=no AC_MSG_CHECKING(for Altivec with GCC -maltivec option) CFLAGS="${save_CFLAGS} -DGCC_ALTIVEC -DUSE_ALTIVEC_BLITTERS -maltivec" - AC_TRY_COMPILE([ - #include <altivec.h> - vector unsigned int vzero() { - return vec_splat_u32(0); - } - ],[ - ],[ - have_gcc_altivec=yes - ]) - AC_MSG_RESULT($have_gcc_altivec) + + if test x$have_altivec_h_hdr = xyes; then + AC_TRY_COMPILE([ + #include <altivec.h> + vector unsigned int vzero() { + return vec_splat_u32(0); + } + ],[ + ],[ + have_gcc_altivec=yes + ]) + AC_MSG_RESULT($have_gcc_altivec) + else + AC_TRY_COMPILE([ + vector unsigned int vzero() { + return vec_splat_u32(0); + } + ],[ + ],[ + have_gcc_altivec=yes + ]) + AC_MSG_RESULT($have_gcc_altivec) + fi if test x$have_gcc_altivec = xno; then AC_MSG_CHECKING(for Altivec with GCC -faltivec option) - CFLAGS="${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($have_gcc_altivec) + CFLAGS="${save_CFLAGS} -DGCC_ALTIVEC -DUSE_ALTIVEC_BLITTERS -faltivec" + if test x$have_altivec_h_hdr = xyes; then + AC_TRY_COMPILE([ + #include <altivec.h> + vector unsigned int vzero() { + return vec_splat_u32(0); + } + ],[ + ],[ + have_gcc_altivec=yes + ]) + AC_MSG_RESULT($have_gcc_altivec) + else + AC_TRY_COMPILE([ + vector unsigned int vzero() { + return vec_splat_u32(0); + } + ],[ + ],[ + have_gcc_altivec=yes + ]) + AC_MSG_RESULT($have_gcc_altivec) + fi fi if test x$have_gcc_altivec = xno; then CFLAGS="${save_CFLAGS}" + else + if test x$have_altivec_h_hdr = xyes; then + CFLAGS="${CFLAGS} -DHAVE_ALTIVEC_H" + fi fi }