diff options
| -rw-r--r-- | m4/gl_warnings.m4 | 28 |
1 files changed, 16 insertions, 12 deletions
diff --git a/m4/gl_warnings.m4 b/m4/gl_warnings.m4 index 870472b..9e24d89 100644 --- a/m4/gl_warnings.m4 +++ b/m4/gl_warnings.m4 @@ -1,5 +1,5 @@ -# warnings.m4 serial 13 -dnl Copyright (C) 2008-2017 Free Software Foundation, Inc. +# warnings.m4 serial 16 +dnl Copyright (C) 2008-2021 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. @@ -23,8 +23,6 @@ m4_ifdef([AS_VAR_APPEND], # The effects of this macro depend on the current language (_AC_LANG). AC_DEFUN([gl_COMPILER_OPTION_IF], [ -dnl FIXME: gl_Warn must be used unquoted until we can assume Autoconf -dnl 2.64 or newer. AS_VAR_PUSHDEF([gl_Warn], [gl_cv_warn_[]_AC_LANG_ABBREV[]_$1])dnl AS_VAR_PUSHDEF([gl_Flags], [_AC_LANG_PREFIX[]FLAGS])dnl AS_LITERAL_IF([$1], @@ -34,13 +32,13 @@ case $gl_positive in -Wno-*) gl_positive=-W`expr "X$gl_positive" : 'X-Wno-\(.*\)'` ;; esac m4_pushdef([gl_Positive], [$gl_positive])])dnl -AC_CACHE_CHECK([whether _AC_LANG compiler handles $1], m4_defn([gl_Warn]), [ +AC_CACHE_CHECK([whether _AC_LANG compiler handles $1], [gl_Warn], [ gl_save_compiler_FLAGS="$gl_Flags" gl_AS_VAR_APPEND(m4_defn([gl_Flags]), [" $gl_unknown_warnings_are_errors ]m4_defn([gl_Positive])["]) - AC_LINK_IFELSE([m4_default([$4], [AC_LANG_PROGRAM([])])], - [AS_VAR_SET(gl_Warn, [yes])], - [AS_VAR_SET(gl_Warn, [no])]) + AC_LINK_IFELSE([m4_default([$4], [AC_LANG_PROGRAM([[]])])], + [AS_VAR_SET([gl_Warn], [yes])], + [AS_VAR_SET([gl_Warn], [no])]) gl_Flags="$gl_save_compiler_FLAGS" ]) AS_VAR_IF(gl_Warn, [yes], [$2], [$3]) @@ -59,8 +57,7 @@ AC_DEFUN([gl_UNKNOWN_WARNINGS_ARE_ERRORS], [_AC_LANG_DISPATCH([$0], _AC_LANG, $@)]) # Specialization for _AC_LANG = 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(C)], +AC_DEFUN([gl_UNKNOWN_WARNINGS_ARE_ERRORS(C)], [ AC_LANG_PUSH([C]) gl_UNKNOWN_WARNINGS_ARE_ERRORS_IMPL @@ -68,14 +65,21 @@ m4_defun([gl_UNKNOWN_WARNINGS_ARE_ERRORS(C)], ]) # Specialization for _AC_LANG = 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(C++)], +AC_DEFUN([gl_UNKNOWN_WARNINGS_ARE_ERRORS(C++)], [ AC_LANG_PUSH([C++]) gl_UNKNOWN_WARNINGS_ARE_ERRORS_IMPL AC_LANG_POP([C++]) ]) +# Specialization for _AC_LANG = Objective C. This macro can be AC_REQUIREd. +AC_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'], |