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| author | Reid Spencer <rspencer@reidspencer.com> | 2004-09-19 22:31:49 +0000 |
|---|---|---|
| committer | Reid Spencer <rspencer@reidspencer.com> | 2004-09-19 22:31:49 +0000 |
| commit | 12de17db02dca026fea1e2aee57ebdca97784292 (patch) | |
| tree | edfdc281c36966a7fa9f81a3533acee319d0bd7f /autoconf/m4/func_mmap_file.m4 | |
| parent | 8eacb0c3a7489b86a7f5523ff4992452bc0b7941 (diff) | |
| download | external_llvm-12de17db02dca026fea1e2aee57ebdca97784292.zip external_llvm-12de17db02dca026fea1e2aee57ebdca97784292.tar.gz external_llvm-12de17db02dca026fea1e2aee57ebdca97784292.tar.bz2 | |
Bring the script out of the dark ages and into modern autoconfness.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16415 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'autoconf/m4/func_mmap_file.m4')
| -rw-r--r-- | autoconf/m4/func_mmap_file.m4 | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/autoconf/m4/func_mmap_file.m4 b/autoconf/m4/func_mmap_file.m4 index 707a1d1..96b5173 100644 --- a/autoconf/m4/func_mmap_file.m4 +++ b/autoconf/m4/func_mmap_file.m4 @@ -4,9 +4,8 @@ AC_DEFUN([AC_FUNC_MMAP_FILE], [AC_CACHE_CHECK(for mmap of files, ac_cv_func_mmap_file, -[AC_LANG_SAVE - AC_LANG_C - AC_TRY_RUN([ +[ AC_LANG_PUSH([C]) + AC_RUN_IFELSE([ #ifdef HAVE_SYS_TYPES_H #include <sys/types.h> #endif @@ -22,8 +21,8 @@ ac_cv_func_mmap_file, int fd; int main () { fd = creat ("foo",0777); fd = (int) mmap (0, 1, PROT_READ, MAP_SHARED, fd, 0); unlink ("foo"); return (fd != (int) MAP_FAILED);}], - ac_cv_func_mmap_file=yes, ac_cv_func_mmap_file=no) - AC_LANG_RESTORE + ac_cv_func_mmap_file=yes, ac_cv_func_mmap_file=no, ac_cv_func_mmap_file=no) + AC_LANG_POP([C]) ]) if test "$ac_cv_func_mmap_file" = yes; then AC_DEFINE([HAVE_MMAP_FILE],[],[Define if mmap() can map files into memory]) |