diff options
Diffstat (limited to 'contrib/llvm/autoconf/m4/func_mmap_file.m4')
-rw-r--r-- | contrib/llvm/autoconf/m4/func_mmap_file.m4 | 26 |
1 files changed, 0 insertions, 26 deletions
diff --git a/contrib/llvm/autoconf/m4/func_mmap_file.m4 b/contrib/llvm/autoconf/m4/func_mmap_file.m4 deleted file mode 100644 index 372c87f..0000000 --- a/contrib/llvm/autoconf/m4/func_mmap_file.m4 +++ /dev/null @@ -1,26 +0,0 @@ -# -# Check for the ability to mmap a file. -# -AC_DEFUN([AC_FUNC_MMAP_FILE], -[AC_CACHE_CHECK(for mmap of files, -ac_cv_func_mmap_file, -[ AC_LANG_PUSH([C]) - AC_RUN_IFELSE([ - AC_LANG_PROGRAM([[ -#include <sys/types.h> -#include <sys/mman.h> -#include <fcntl.h> -]],[[ - int fd; - 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_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]) - AC_SUBST(MMAP_FILE,[yes]) -fi -]) |