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authorAndreas Rottmann <a.rottmann@gmx.at>2009-09-14 12:32:44 +0200
committerAndreas Rottmann <a.rottmann@gmx.at>2009-09-14 12:32:44 +0200
commitfa095a4504cbe668e4244547e2c141597bea4ecf (patch)
tree06135820a286ffec47804e75fbf8a147e92acd2e /gnulib-m4/malloc.m4
Imported Upstream version 0.9.1upstream/0.9.1
Diffstat (limited to 'gnulib-m4/malloc.m4')
-rw-r--r--gnulib-m4/malloc.m441
1 files changed, 41 insertions, 0 deletions
diff --git a/gnulib-m4/malloc.m4 b/gnulib-m4/malloc.m4
new file mode 100644
index 00000000..80701716
--- /dev/null
+++ b/gnulib-m4/malloc.m4
@@ -0,0 +1,41 @@
+# malloc.m4 serial 9
+dnl Copyright (C) 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,
+dnl with or without modifications, as long as this notice is preserved.
+
+# 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_CHECK_MALLOC_POSIX])
+ if test $gl_cv_func_malloc_posix = yes; then
+ 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
+ fi
+ AC_SUBST([HAVE_MALLOC_POSIX])
+])
+
+# Test whether malloc, realloc, calloc are POSIX compliant,
+# Set gl_cv_func_malloc_posix to yes or no accordingly.
+AC_DEFUN([gl_CHECK_MALLOC_POSIX],
+[
+ AC_CACHE_CHECK([whether malloc, realloc, calloc are POSIX compliant],
+ [gl_cv_func_malloc_posix],
+ [
+ dnl It is too dangerous to try to allocate a large amount of memory:
+ 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__
+ choke me
+ #endif
+ ], [gl_cv_func_malloc_posix=yes], [gl_cv_func_malloc_posix=no])
+ ])
+])