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Diffstat (limited to 'm4/realloc.m4')
| -rw-r--r-- | m4/realloc.m4 | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/m4/realloc.m4 b/m4/realloc.m4 new file mode 100644 index 000000000..9f746f190 --- /dev/null +++ b/m4/realloc.m4 @@ -0,0 +1,25 @@ +# realloc.m4 serial 7 +dnl Copyright (C) 2002 Free Software Foundation, Inc. +dnl This file is free software, distributed under the terms of the GNU +dnl General Public License. As a special exception to the GNU General +dnl Public License, this file may be distributed as part of a program +dnl that contains a configuration script generated by Autoconf, under +dnl the same distribution terms as the rest of that program. + +dnl From Jim Meyering. +dnl Determine whether realloc works when both arguments are 0. +dnl If it doesn't, arrange to use the replacement function. + +AC_DEFUN([jm_FUNC_REALLOC], +[ + AC_REQUIRE([AC_FUNC_REALLOC]) + dnl autoconf < 2.57 used the symbol ac_cv_func_realloc_works. + if test X"$ac_cv_func_realloc_0_nonnull" = Xno || test X"$ac_cv_func_realloc_works" = Xno; then + gl_PREREQ_REALLOC + fi +]) + +# Prerequisites of lib/realloc.c. +AC_DEFUN([gl_PREREQ_REALLOC], [ + : +]) |