diff options
Diffstat (limited to 'm4/warnings.m4')
| -rw-r--r-- | m4/warnings.m4 | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/m4/warnings.m4 b/m4/warnings.m4 index dadcea29c16..07edda1cca6 100644 --- a/m4/warnings.m4 +++ b/m4/warnings.m4 @@ -1,5 +1,5 @@ -# warnings.m4 serial 13 -dnl Copyright (C) 2008-2019 Free Software Foundation, Inc. +# warnings.m4 serial 14 +dnl Copyright (C) 2008-2018 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. @@ -76,6 +76,15 @@ m4_defun([gl_UNKNOWN_WARNINGS_ARE_ERRORS(C++)], AC_LANG_POP([C++]) ]) +# Specialization for _AC_LANG = Objective C. This macro can be AC_REQUIREd. +# Use of m4_defun rather than AC_DEFUN works around a bug in autoconf < 2.63b. +m4_defun([gl_UNKNOWN_WARNINGS_ARE_ERRORS(Objective C)], +[ + AC_LANG_PUSH([Objective C]) + gl_UNKNOWN_WARNINGS_ARE_ERRORS_IMPL + AC_LANG_POP([Objective C]) +]) + AC_DEFUN([gl_UNKNOWN_WARNINGS_ARE_ERRORS_IMPL], [gl_COMPILER_OPTION_IF([-Werror -Wunknown-warning-option], [gl_unknown_warnings_are_errors='-Wunknown-warning-option -Werror'], |