diff options
| author | Bruno Haible <bruno@clisp.org> | 2009-05-13 02:37:05 +0200 |
|---|---|---|
| committer | Bruno Haible <bruno@clisp.org> | 2009-05-13 02:37:05 +0200 |
| commit | c584de0f2be558c8a5b696bdd5cb2f9428c4a85d (patch) | |
| tree | a0a8601d33f327b63600ddd57b3536691f7d56d2 /m4 | |
| parent | 35684203ea9951bc0634065e7ae2120fc8372591 (diff) | |
| download | gnulib-c584de0f2be558c8a5b696bdd5cb2f9428c4a85d.tar.gz | |
Make the MAP_ANONYMOUS detection work on HP-UX 11.
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/mmap-anon.m4 | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/m4/mmap-anon.m4 b/m4/mmap-anon.m4 index 91cd95b232..fe624a2c02 100644 --- a/m4/mmap-anon.m4 +++ b/m4/mmap-anon.m4 @@ -1,4 +1,4 @@ -# mmap-anon.m4 serial 6 +# mmap-anon.m4 serial 7 dnl Copyright (C) 2005, 2007, 2009 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -22,12 +22,14 @@ AC_DEFUN([gl_FUNC_MMAP_ANON], dnl Persuade glibc <sys/mman.h> to define MAP_ANONYMOUS. AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) - # Check for mmap() - AC_FUNC_MMAP + # Check for mmap(). Don't use AC_FUNC_MMAP, because it checks too much: it + # fails on HP-UX 11, because MAP_FIXED mappings do not work. But this is + # irrelevant for anonymous mappings. + AC_CHECK_FUNC([mmap], [gl_have_mmap=yes], [gl_have_mmap=no]) # Try to allow MAP_ANONYMOUS. gl_have_mmap_anonymous=no - if test $ac_cv_func_mmap_fixed_mapped = yes; then + if test $gl_have_mmap = yes; then AC_MSG_CHECKING([for MAP_ANONYMOUS]) AC_EGREP_CPP([I cant identify this map.], [ #include <sys/mman.h> |