30 lines
870 B
Text
30 lines
870 B
Text
|
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"
|
||
|
|
])
|
||
|
|
])
|