diff options
Diffstat (limited to 'gcc/aclocal.m4')
| -rw-r--r-- | gcc/aclocal.m4 | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/gcc/aclocal.m4 b/gcc/aclocal.m4 index c5c71ca..6f1679e 100644 --- a/gcc/aclocal.m4 +++ b/gcc/aclocal.m4 @@ -269,8 +269,12 @@ AC_SUBST($1)dnl # mmap(2) blacklisting. Some platforms provide the mmap library routine # but don't support all of the features we need from it. AC_DEFUN([gcc_AC_FUNC_MMAP_BLACKLIST], -[if test $ac_cv_header_sys_mman_h != yes \ - || test $ac_cv_func_mmap != yes; then +[ +AC_CHECK_HEADER([sys/mman.h], + [gcc_header_sys_mman_h=yes], [gcc_header_sys_mman_h=no]) +AC_CHECK_FUNC([mmap], [gcc_func_mmap=yes], [gcc_func_mmap=no]) +if test "$gcc_header_sys_mman_h" != yes \ + || test "$gcc_func_mmap" != yes; then gcc_cv_func_mmap_file=no gcc_cv_func_mmap_dev_zero=no gcc_cv_func_mmap_anon=no |