diff options
Diffstat (limited to 'autoconf/m4/header_mmap_anonymous.m4')
| -rw-r--r-- | autoconf/m4/header_mmap_anonymous.m4 | 21 |
1 files changed, 0 insertions, 21 deletions
diff --git a/autoconf/m4/header_mmap_anonymous.m4 b/autoconf/m4/header_mmap_anonymous.m4 deleted file mode 100644 index 2270d29557b6..000000000000 --- a/autoconf/m4/header_mmap_anonymous.m4 +++ /dev/null @@ -1,21 +0,0 @@ -# -# Check for anonymous mmap macros. This is modified from -# http://www.gnu.org/software/ac-archive/htmldoc/ac_cxx_have_ext_slist.html -# -AC_DEFUN([AC_HEADER_MMAP_ANONYMOUS], -[AC_CACHE_CHECK(for MAP_ANONYMOUS vs. MAP_ANON, -ac_cv_header_mmap_anon, -[ AC_LANG_PUSH([C]) - AC_COMPILE_IFELSE([AC_LANG_PROGRAM( - [[#include <sys/mman.h> -#include <unistd.h> -#include <fcntl.h>]], - [[mmap (0, 1, PROT_READ, MAP_ANONYMOUS, -1, 0); return (0);]])], - ac_cv_header_mmap_anon=yes, - ac_cv_header_mmap_anon=no) - AC_LANG_POP([C]) -]) -if test "$ac_cv_header_mmap_anon" = yes; then - AC_DEFINE([HAVE_MMAP_ANONYMOUS],[1],[Define if mmap() uses MAP_ANONYMOUS to map anonymous pages, or undefine if it uses MAP_ANON]) -fi -]) |