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| author | claude-bot <[email protected]> | 2026-07-13 12:40:01 +0000 |
|---|---|---|
| committer | claude-bot <[email protected]> | 2026-07-13 12:40:01 +0000 |
| commit | 7d5c8eb943f92a94b420568778d61e0bd6f7df43 (patch) | |
| tree | c78215ea1d7b79b038c977b78a816af77057c6df /m4/opus-intrinsics.m4 | |
| download | opus-7d5c8eb943f92a94b420568778d61e0bd6f7df43.tar.gz opus-7d5c8eb943f92a94b420568778d61e0bd6f7df43.zip | |
Snapshot for re3/reVC vendoring, per @lzcnt.
Source: https://github.com/xiph/opus (034c1b61a250457649d788bbf983b3f0fb63f02e).
Diffstat (limited to 'm4/opus-intrinsics.m4')
| -rw-r--r-- | m4/opus-intrinsics.m4 | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/m4/opus-intrinsics.m4 b/m4/opus-intrinsics.m4 new file mode 100644 index 0000000..a262ca1 --- /dev/null +++ b/m4/opus-intrinsics.m4 @@ -0,0 +1,29 @@ +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" + ]) +]) |