-# malloc.m4 serial 8
-dnl Copyright (C) 2007 Free Software Foundation, Inc.
+# malloc.m4 serial 10
+dnl Copyright (C) 2007, 2009, 2010 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
+# gl_FUNC_MALLOC_GNU
+# ------------------
+# Test whether 'malloc (0)' is handled like in GNU libc, and replace malloc if
+# it is not.
+AC_DEFUN([gl_FUNC_MALLOC_GNU],
+[
+ AC_REQUIRE([gl_STDLIB_H_DEFAULTS])
+ dnl _AC_FUNC_MALLOC_IF is defined in Autoconf.
+ _AC_FUNC_MALLOC_IF(
+ [AC_DEFINE([HAVE_MALLOC], [1],
+ [Define to 1 if your system has a GNU libc compatible 'malloc'
+ function, and to 0 otherwise.])],
+ [AC_DEFINE([HAVE_MALLOC], [0])
+ gl_REPLACE_MALLOC
+ ])
+])
+
# gl_FUNC_MALLOC_POSIX
# --------------------
# Test whether 'malloc' is POSIX compliant (sets errno to ENOMEM when it
# fails), and replace malloc if it is not.
AC_DEFUN([gl_FUNC_MALLOC_POSIX],
[
+ AC_REQUIRE([gl_STDLIB_H_DEFAULTS])
AC_REQUIRE([gl_CHECK_MALLOC_POSIX])
if test $gl_cv_func_malloc_posix = yes; then
- HAVE_MALLOC_POSIX=1
- AC_DEFINE([HAVE_MALLOC_POSIX], 1,
+ AC_DEFINE([HAVE_MALLOC_POSIX], [1],
[Define if the 'malloc' function is POSIX compliant.])
else
- AC_LIBOBJ([malloc])
- HAVE_MALLOC_POSIX=0
+ gl_REPLACE_MALLOC
fi
- AC_SUBST([HAVE_MALLOC_POSIX])
])
# Test whether malloc, realloc, calloc are POSIX compliant,
dnl some systems go to their knees when you do that. So assume that
dnl all Unix implementations of the function are POSIX compliant.
AC_TRY_COMPILE([],
- [#if !((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)
+ [#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
choke me
#endif
], [gl_cv_func_malloc_posix=yes], [gl_cv_func_malloc_posix=no])
])
])
+
+AC_DEFUN([gl_REPLACE_MALLOC],
+[
+ AC_LIBOBJ([malloc])
+ REPLACE_MALLOC=1
+])