ref: d8b1fd4ad0233fc69a58ac6f91e1d154f22c481b
dir: /m4/opus-intrinsics.m4/
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" ]) ])