diff options
Diffstat (limited to 'm4/free.m4')
-rw-r--r-- | m4/free.m4 | 40 |
1 files changed, 0 insertions, 40 deletions
diff --git a/m4/free.m4 b/m4/free.m4 deleted file mode 100644 index 566734b77..000000000 --- a/m4/free.m4 +++ /dev/null @@ -1,40 +0,0 @@ -# Check whether free (NULL) is supposed to work. - -# Copyright (C) 2003, 2004, 2005 Free Software Foundation, Inc. -# This file is free software; the Free Software Foundation -# gives unlimited permission to copy and/or distribute it, -# with or without modifications, as long as this notice is preserved. - -# Written by Paul Eggert. - -# We can't test for free (NULL) even at runtime, since it might -# happen to "work" for our test program, but not in general. So, be -# conservative and use feature tests for relatively modern hosts, -# where free (NULL) is known to work. This costs a bit of -# performance on some older hosts, but we can fix that later if -# needed. - -AC_DEFUN([gl_FUNC_FREE], -[ - AC_CACHE_CHECK([whether free (NULL) is known to work], - [gl_cv_func_free], - [AC_COMPILE_IFELSE( - [AC_LANG_PROGRAM( - [[@%:@include <unistd.h>]], - [[@%:@if _POSIX_VERSION < 199009L && \ - (defined unix || defined _unix || defined _unix_ \ - || defined __unix || defined __unix__) - @%:@error "'free (NULL)' is not known to work" - @%:@endif]])], - [gl_cv_func_free=yes], - [gl_cv_func_free=no])]) - - if test $gl_cv_func_free = no; then - AC_LIBOBJ(free) - AC_DEFINE(free, rpl_free, - [Define to rpl_free if the replacement function should be used.]) - fi -]) - -# Prerequisites of lib/free.c. -AC_DEFUN([gl_PREREQ_FREE], [:]) |