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Diffstat (limited to 'm4/gl_warnings.m4')
| -rw-r--r-- | m4/gl_warnings.m4 | 106 |
1 files changed, 0 insertions, 106 deletions
diff --git a/m4/gl_warnings.m4 b/m4/gl_warnings.m4 deleted file mode 100644 index 870472b..0000000 --- a/m4/gl_warnings.m4 +++ /dev/null @@ -1,106 +0,0 @@ -# warnings.m4 serial 13 -dnl Copyright (C) 2008-2017 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. - -dnl From Simon Josefsson - -# gl_AS_VAR_APPEND(VAR, VALUE) -# ---------------------------- -# Provide the functionality of AS_VAR_APPEND if Autoconf does not have it. -m4_ifdef([AS_VAR_APPEND], -[m4_copy([AS_VAR_APPEND], [gl_AS_VAR_APPEND])], -[m4_define([gl_AS_VAR_APPEND], -[AS_VAR_SET([$1], [AS_VAR_GET([$1])$2])])]) - - -# gl_COMPILER_OPTION_IF(OPTION, [IF-SUPPORTED], [IF-NOT-SUPPORTED], -# [PROGRAM = AC_LANG_PROGRAM()]) -# ----------------------------------------------------------------- -# Check if the compiler supports OPTION when compiling PROGRAM. -# -# 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], - [m4_pushdef([gl_Positive], m4_bpatsubst([$1], [^-Wno-], [-W]))], - [gl_positive="$1" -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 $1], m4_defn([gl_Warn]), [ - gl_save_compiler_FLAGS="$gl_Flags" - gl_AS_VAR_APPEND(m4_defn([gl_Flags]), - [" $gl_unknown_warnings_are_errors ]m4_defn([gl_Positive])["]) - AC_LINK_IFELSE([m4_default([$4], [AC_LANG_PROGRAM([])])], - [AS_VAR_SET(gl_Warn, [yes])], - [AS_VAR_SET(gl_Warn, [no])]) - gl_Flags="$gl_save_compiler_FLAGS" -]) -AS_VAR_IF(gl_Warn, [yes], [$2], [$3]) -m4_popdef([gl_Positive])dnl -AS_VAR_POPDEF([gl_Flags])dnl -AS_VAR_POPDEF([gl_Warn])dnl -]) - -# gl_UNKNOWN_WARNINGS_ARE_ERRORS -# ------------------------------ -# Clang doesn't complain about unknown warning options unless one also -# specifies -Wunknown-warning-option -Werror. Detect this. -# -# The effects of this macro depend on the current language (_AC_LANG). -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_LANG_PUSH([C]) - gl_UNKNOWN_WARNINGS_ARE_ERRORS_IMPL - AC_LANG_POP([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_LANG_PUSH([C++]) - gl_UNKNOWN_WARNINGS_ARE_ERRORS_IMPL - AC_LANG_POP([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'], - [gl_unknown_warnings_are_errors=])]) - -# gl_WARN_ADD(OPTION, [VARIABLE = WARN_CFLAGS/WARN_CXXFLAGS], -# [PROGRAM = AC_LANG_PROGRAM()]) -# ----------------------------------------------------------- -# Adds parameter to WARN_CFLAGS/WARN_CXXFLAGS if the compiler supports it -# when compiling PROGRAM. For example, gl_WARN_ADD([-Wparentheses]). -# -# If VARIABLE is a variable name, AC_SUBST it. -# -# The effects of this macro depend on the current language (_AC_LANG). -AC_DEFUN([gl_WARN_ADD], -[AC_REQUIRE([gl_UNKNOWN_WARNINGS_ARE_ERRORS(]_AC_LANG[)]) -gl_COMPILER_OPTION_IF([$1], - [gl_AS_VAR_APPEND(m4_if([$2], [], [[WARN_]_AC_LANG_PREFIX[FLAGS]], [[$2]]), [" $1"])], - [], - [$3]) -m4_ifval([$2], - [AS_LITERAL_IF([$2], [AC_SUBST([$2])])], - [AC_SUBST([WARN_]_AC_LANG_PREFIX[FLAGS])])dnl -]) - -# Local Variables: -# mode: autoconf -# End: |