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Diffstat (limited to 'm4/error.m4')
-rw-r--r-- | m4/error.m4 | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/m4/error.m4 b/m4/error.m4 new file mode 100644 index 0000000..6ea75ac --- /dev/null +++ b/m4/error.m4 @@ -0,0 +1,39 @@ +#serial 13 + +# Copyright (C) 1996-1998, 2001-2004, 2009-2011 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. + +AC_DEFUN([gl_ERROR], +[ + AC_FUNC_ERROR_AT_LINE + dnl Note: AC_FUNC_ERROR_AT_LINE does AC_LIBSOURCES([error.h, error.c]). + gl_PREREQ_ERROR +]) + +# Redefine AC_FUNC_ERROR_AT_LINE, because it is no longer maintained in +# Autoconf. +AC_DEFUN([AC_FUNC_ERROR_AT_LINE], +[ + AC_LIBSOURCES([error.h, error.c])dnl + AC_CACHE_CHECK([for error_at_line], [ac_cv_lib_error_at_line], + [AC_LINK_IFELSE( + [AC_LANG_PROGRAM( + [[#include <error.h>]], + [[error_at_line (0, 0, "", 0, "an error occurred");]])], + [ac_cv_lib_error_at_line=yes], + [ac_cv_lib_error_at_line=no])]) + if test $ac_cv_lib_error_at_line = no; then + AC_LIBOBJ([error]) + fi +]) + +# Prerequisites of lib/error.c. +AC_DEFUN([gl_PREREQ_ERROR], +[ + AC_REQUIRE([AC_FUNC_STRERROR_R]) + AC_REQUIRE([AC_C_INLINE]) + : +]) |