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Diffstat (limited to '')
| -rw-r--r-- | m4/error.m4 | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/m4/error.m4 b/m4/error.m4 new file mode 100644 index 0000000..7a10344 --- /dev/null +++ b/m4/error.m4 @@ -0,0 +1,31 @@ +#serial 15 + +# Copyright (C) 1996-1998, 2001-2004, 2009-2022 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], +[ + dnl We don't use AC_FUNC_ERROR_AT_LINE any more, because it is no longer + dnl maintained in Autoconf and because it invokes AC_LIBOBJ. + 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])]) +]) + +# Prerequisites of lib/error.c. +AC_DEFUN([gl_PREREQ_ERROR], +[ + dnl Use system extensions on Android, so that AC_FUNC_STRERROR_R + dnl discovers the GNU API for strerror_r on Android API level 23 and later. + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + + AC_REQUIRE([AC_FUNC_STRERROR_R]) + : +]) |