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comparison configure.in @ 1162:2651158f59b8

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Enable altivec blitters on PowerPC Linux, and some fixes for recent GCCs versions.
author Ryan C. Gordon <icculus@icculus.org>
date Thu, 20 Oct 2005 06:55:26 +0000
parents af8b0f9ac2f4
children 045f186426e1
comparison
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1161:05d4b93b911e 1162:2651158f59b8
1908 } 1908 }
1909 1909
1910 dnl Check for altivec instruction support using gas syntax 1910 dnl Check for altivec instruction support using gas syntax
1911 CheckAltivec() 1911 CheckAltivec()
1912 { 1912 {
1913 AC_MSG_CHECKING(for GCC Altivec instruction support) 1913 dnl FIXME: Theoretically, you might not have altivec.h, we should check
1914 dnl FIXME: that seperately, but I think all major platforms have it
1915 dnl FIXME: at the moment... --ryan.
1916
1917 save_CFLAGS="${CFLAGS}"
1914 have_gcc_altivec=no 1918 have_gcc_altivec=no
1915 save_CFLAGS="${CFLAGS}" 1919 AC_MSG_CHECKING(for Altivec with GCC -maltivec option)
1916 CFLAGS="${CFLAGS} -DGCC_ALTIVEC -DUSE_ALTIVEC_BLITTERS -faltivec" 1920 CFLAGS="${save_CFLAGS} -DGCC_ALTIVEC -DUSE_ALTIVEC_BLITTERS -maltivec"
1917 AC_TRY_COMPILE([ 1921 AC_TRY_COMPILE([
1922 #include <altivec.h>
1918 vector unsigned int vzero() { 1923 vector unsigned int vzero() {
1919 return vec_splat_u32(0); 1924 return vec_splat_u32(0);
1920 } 1925 }
1921 ],[ 1926 ],[
1922 ],[ 1927 ],[
1923 have_gcc_altivec=yes 1928 have_gcc_altivec=yes
1924 ]) 1929 ])
1930 AC_MSG_RESULT($have_gcc_altivec)
1931
1932 if test x$have_gcc_altivec = xno; then
1933 AC_MSG_CHECKING(for Altivec with GCC -faltivec option)
1934 CFLAGS="${CFLAGS} -DGCC_ALTIVEC -DUSE_ALTIVEC_BLITTERS -faltivec"
1935 AC_TRY_COMPILE([
1936 #include <altivec.h>
1937 vector unsigned int vzero() {
1938 return vec_splat_u32(0);
1939 }
1940 ],[
1941 ],[
1942 have_gcc_altivec=yes
1943 ])
1944 AC_MSG_RESULT($have_gcc_altivec)
1945 fi
1946
1925 if test x$have_gcc_altivec = xno; then 1947 if test x$have_gcc_altivec = xno; then
1926 CFLAGS="${save_CFLAGS}" 1948 CFLAGS="${save_CFLAGS}"
1927 fi 1949 fi
1928 AC_MSG_RESULT($have_gcc_altivec)
1929 } 1950 }
1930 1951
1931 dnl Check for a valid linux/version.h 1952 dnl Check for a valid linux/version.h
1932 CheckLinuxVersion() 1953 CheckLinuxVersion()
1933 { 1954 {