diff options
Diffstat (limited to 'Build/source/texk/web2c/luatexdir/zziplib/m4/acx_restrict.m4')
-rw-r--r-- | Build/source/texk/web2c/luatexdir/zziplib/m4/acx_restrict.m4 | 32 |
1 files changed, 0 insertions, 32 deletions
diff --git a/Build/source/texk/web2c/luatexdir/zziplib/m4/acx_restrict.m4 b/Build/source/texk/web2c/luatexdir/zziplib/m4/acx_restrict.m4 deleted file mode 100644 index 333f2592df4..00000000000 --- a/Build/source/texk/web2c/luatexdir/zziplib/m4/acx_restrict.m4 +++ /dev/null @@ -1,32 +0,0 @@ -dnl @synopsis ACX_C_RESTRICT -dnl -dnl This macro determines whether the C compiler supports the "restrict" -dnl keyword introduced in ANSI C99, or an equivalent. Does nothing if -dnl the compiler accepts the keyword. Otherwise, if the compiler supports -dnl an equivalent (like gcc's __restrict__) defines "restrict" to be that. -dnl Otherwise, defines "restrict" to be empty. -dnl -dnl @version $Id: acx_restrict.m4,v 1.1 2005/12/09 07:47:34 guidod Exp $ -dnl @author Steven G. Johnson <stevenj@alum.mit.edu> - -AC_DEFUN([ACX_C_RESTRICT], -[AC_CACHE_CHECK([for C restrict keyword], acx_cv_c_restrict, -[acx_cv_c_restrict=unsupported - AC_LANG_SAVE - AC_LANG_C - # Try the official restrict keyword, then gcc's __restrict__, then - # SGI's __restrict. __restrict has slightly different semantics than - # restrict (it's a bit stronger, in that __restrict pointers can't - # overlap even with non __restrict pointers), but I think it should be - # okay under the circumstances where restrict is normally used. - for acx_kw in restrict __restrict__ __restrict; do - AC_TRY_COMPILE([], [float * $acx_kw x;], [acx_cv_c_restrict=$acx_kw; break]) - done - AC_LANG_RESTORE -]) - if test "$acx_cv_c_restrict" != "restrict"; then - acx_kw="$acx_cv_c_restrict" - if test "$acx_kw" = unsupported; then acx_kw=""; fi - AC_DEFINE_UNQUOTED(restrict, $acx_kw, [Define to equivalent of C99 restrict keyword, or to nothing if this is not supported. Do not define if restrict is supported directly.]) - fi -]) |