-if test "${ac_cv_c_altivec}" != "no" -a "${enable_altivec}" != "no" ; then
- AC_DEFINE(CAN_COMPILE_C_ALTIVEC, 1, Define if your compiler groks C AltiVec extensions.)
- VLC_ADD_CFLAGS([libvlc],[${ac_cv_c_altivec}])
- VLC_ADD_CFLAGS([idctaltivec motionaltivec],[${ac_cv_c_altivec}])
- VLC_ADD_CFLAGS([i420_yuy2_altivec memcpyaltivec deinterlace],[${ac_cv_c_altivec} ${ac_cv_c_altivec_abi}])
- if test "${ac_cv_altivec_inline}" = "no"; then
- ACCEL_MODULES="${ACCEL_MODULES} ${ALTIVEC_MODULES}"
+AS_IF( test "${enable_altivec}" != "no",
+[
+ AC_CHECK_HEADERS(altivec.h)
+ CPPFLAGS="${CPPFLAGS_save}"
+
+ if test "${ac_cv_c_altivec}" != "no"; then
+ AC_DEFINE(CAN_COMPILE_C_ALTIVEC, 1, Define if your compiler groks C AltiVec extensions.)
+ VLC_ADD_CFLAGS([libvlc],[${ac_cv_c_altivec}])
+ VLC_ADD_CFLAGS([idctaltivec motionaltivec],[${ac_cv_c_altivec}])
+ VLC_ADD_CFLAGS([i420_yuy2_altivec memcpyaltivec deinterlace],[${ac_cv_c_altivec} ${ac_cv_c_altivec_abi}])
+ if test "${ac_cv_altivec_inline}" = "no"; then
+ ACCEL_MODULES="${ACCEL_MODULES} ${ALTIVEC_MODULES}"
+ fi