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dnl opus-intrinsics.m4
dnl macro for testing for support for compiler intrinsics, either by default or with a compiler flag
dnl OPUS_CHECK_INTRINSICS(NAME-OF-INTRINSICS, COMPILER-FLAG-FOR-INTRINSICS, VAR-IF-PRESENT, VAR-IF-DEFAULT, TEST-PROGRAM-HEADER, TEST-PROGRAM-BODY)
AC_DEFUN([OPUS_CHECK_INTRINSICS],
[
AC_MSG_CHECKING([if compiler supports $1 intrinsics])
AC_LINK_IFELSE(
[AC_LANG_PROGRAM($5, $6)],
[
$3=1
$4=1
AC_MSG_RESULT([yes])
],[
$4=0
AC_MSG_RESULT([no])
AC_MSG_CHECKING([if compiler supports $1 intrinsics with $2])
save_CFLAGS="$CFLAGS"; CFLAGS="$CFLAGS $2"
AC_LINK_IFELSE([AC_LANG_PROGRAM($5, $6)],
[
AC_MSG_RESULT([yes])
$3=1
],[
AC_MSG_RESULT([no])
$3=0
])
CFLAGS="$save_CFLAGS"
])
])
|
