AC_CHECK_HEADERS(sys/sockio.h fcntl.h sys/types.h sys/time.h sys/times.h sys/ioctl.h sys/stat.h)
AC_CHECK_HEADERS(arpa/inet.h net/if.h netinet/in.h sys/socket.h)
if test "${SYS}" != "mingw32" -a "${SYS}" != "mingwce"; then
-AC_CHECK_HEADERS(machine/param.h sys/shm.h altivec.h)
+AC_CHECK_HEADERS(machine/param.h sys/shm.h)
AC_CHECK_HEADERS(linux/version.h)
fi # end "${SYS}" != "mingw32" -a "${SYS}" != "mingwce"
ACCEL_MODULES="${ACCEL_MODULES} ${ALTIVEC_MODULES}"
fi
+dnl Check for <altivec.h>, gcc 4.x needs -maltivec for it
+AC_CACHE_CHECK([if \$CC accepts -maltivec],
+ [ac_cv_c_maltivec],
+ [CFLAGS="${CFLAGS_save} -maltivec"
+ AC_TRY_COMPILE([],,ac_cv_c_maltivec=yes, ac_cv_c_maltivec=no)])
+if test "${ac_cv_c_maltivec}" != "no"; then
+ CPPFLAGS="${CPPFLAGS_save} -maltivec"
+fi
+AC_CHECK_HEADERS(altivec.h)
+CPPFLAGS="${CPPFLAGS_save}"
+
AC_CACHE_CHECK([if \$CC groks AltiVec C extensions],
[ac_cv_c_altivec],
[# Darwin test