From: Bruno Haible Date: Wed, 13 May 2009 00:37:05 +0000 (+0200) Subject: Make the MAP_ANONYMOUS detection work on HP-UX 11. X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c584de0f2be558c8a5b696bdd5cb2f9428c4a85d;p=pspp Make the MAP_ANONYMOUS detection work on HP-UX 11. --- diff --git a/ChangeLog b/ChangeLog index ffa4100a38..313291e4e3 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,9 @@ +2009-05-12 Bruno Haible + + Make the MAP_ANONYMOUS detection work on HP-UX 11. + * m4/mmap-anon.m4 (gl_FUNC_MMAP_ANON): Check whether mmap exists, but + not whether its fully works. + 2009-05-12 Bruno Haible * m4/mmap-anon.m4 (gl_FUNC_MMAP_ANON): Add comments. 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 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