Mercurial > hg > sv-dependency-builds
annotate src/opus-1.3/m4/opus-intrinsics.m4 @ 81:7029a4916348
Merge build update
| author | Chris Cannam |
|---|---|
| date | Thu, 31 Oct 2019 13:36:58 +0000 |
| parents | 7aeed7906520 |
| children |
| rev | line source |
|---|---|
| Chris@69 | 1 dnl opus-intrinsics.m4 |
| Chris@69 | 2 dnl macro for testing for support for compiler intrinsics, either by default or with a compiler flag |
| Chris@69 | 3 |
| Chris@69 | 4 dnl OPUS_CHECK_INTRINSICS(NAME-OF-INTRINSICS, COMPILER-FLAG-FOR-INTRINSICS, VAR-IF-PRESENT, VAR-IF-DEFAULT, TEST-PROGRAM-HEADER, TEST-PROGRAM-BODY) |
| Chris@69 | 5 AC_DEFUN([OPUS_CHECK_INTRINSICS], |
| Chris@69 | 6 [ |
| Chris@69 | 7 AC_MSG_CHECKING([if compiler supports $1 intrinsics]) |
| Chris@69 | 8 AC_LINK_IFELSE( |
| Chris@69 | 9 [AC_LANG_PROGRAM($5, $6)], |
| Chris@69 | 10 [ |
| Chris@69 | 11 $3=1 |
| Chris@69 | 12 $4=1 |
| Chris@69 | 13 AC_MSG_RESULT([yes]) |
| Chris@69 | 14 ],[ |
| Chris@69 | 15 $4=0 |
| Chris@69 | 16 AC_MSG_RESULT([no]) |
| Chris@69 | 17 AC_MSG_CHECKING([if compiler supports $1 intrinsics with $2]) |
| Chris@69 | 18 save_CFLAGS="$CFLAGS"; CFLAGS="$CFLAGS $2" |
| Chris@69 | 19 AC_LINK_IFELSE([AC_LANG_PROGRAM($5, $6)], |
| Chris@69 | 20 [ |
| Chris@69 | 21 AC_MSG_RESULT([yes]) |
| Chris@69 | 22 $3=1 |
| Chris@69 | 23 ],[ |
| Chris@69 | 24 AC_MSG_RESULT([no]) |
| Chris@69 | 25 $3=0 |
| Chris@69 | 26 ]) |
| Chris@69 | 27 CFLAGS="$save_CFLAGS" |
| Chris@69 | 28 ]) |
| Chris@69 | 29 ]) |