X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/b9278c7d174c1be5d7482343c5e433f428657ed0..eb0e86ac80861525ab5d0c0dcb585290e1bd3f03:/configure.ac?ds=inline diff --git a/configure.ac b/configure.ac index eb39c617..e6ef8baf 100644 --- a/configure.ac +++ b/configure.ac @@ -1,6 +1,6 @@ # Configure template for GNU Bison. -*-Autoconf-*- # -# Copyright (C) 2001-2012 Free Software Foundation, Inc. +# Copyright (C) 2001-2013 Free Software Foundation, Inc. # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by @@ -18,7 +18,7 @@ # In order for some versions of Sun Studio to compile our C++ test cases # correctly, we need Autoconf 2.64 or better to handle the restrict # keyword in at least string.h from gnulib. We need Autoconf 2.68 or -# better to avoid a typo in the `configure --help' entry for the YACC +# better to avoid a typo in the 'configure --help' entry for the YACC # environment variable. AC_PREREQ([2.68]) m4_pattern_forbid([^gl_[A-Z]]) @@ -26,7 +26,7 @@ m4_pattern_forbid([^gl_[A-Z]]) AC_INIT([GNU Bison], m4_esyscmd([build-aux/git-version-gen .tarball-version]), [bug-bison@gnu.org]) -AC_SUBST([PACKAGE_COPYRIGHT_YEAR], [2012]) +AC_SUBST([PACKAGE_COPYRIGHT_YEAR], [2013]) AC_DEFINE_UNQUOTED([PACKAGE_COPYRIGHT_YEAR], [$PACKAGE_COPYRIGHT_YEAR], [The copyright year for this package]) @@ -86,6 +86,12 @@ if test "$enable_gcc_warnings" = yes; then -Wformat -Wpointer-arith -Wwrite-strings' warn_c='-Wbad-function-cast -Wshadow -Wstrict-prototypes' warn_cxx='-Wnoexcept' + # Warnings for the test suite only. + # + # -fno-color-diagnostics: Clang's use of colors in the error + # messages is confusing the tests looking at the compiler's output + # (e.g., synclines.at). + warn_tests='-Wundef -pedantic -fno-color-diagnostics' AC_LANG_PUSH([C]) # Clang supports many of GCC's -W options, but only issues warnings @@ -114,12 +120,13 @@ if test "$enable_gcc_warnings" = yes; then AS_VAR_APPEND([WARN_CFLAGS], [" $WARN_CFLAGS_TEST"]) # Warnings for the test suite only. - gl_WARN_ADD([-Wundef], [WARN_CFLAGS_TEST]) - gl_WARN_ADD([-pedantic], [WARN_CFLAGS_TEST]) + for i in $warn_tests; + do + gl_WARN_ADD([$i], [WARN_CFLAGS_TEST]) + done CFLAGS=$save_CFLAGS AC_LANG_POP([C]) - AC_LANG_PUSH([C++]) save_CXXFLAGS=$CXXFLAGS gl_WARN_ADD([-Werror=unknown-warning-option], [CXXFLAGS]) @@ -131,10 +138,14 @@ if test "$enable_gcc_warnings" = yes; then [AC_LANG_PROGRAM([], [nullptr])]) gl_WARN_ADD([-Werror], [WERROR_CXXFLAGS]) # Warnings for the test suite only. - gl_WARN_ADD([-Wundef], [WARN_CXXFLAGS_TEST]) - gl_WARN_ADD([-pedantic], [WARN_CXXFLAGS_TEST]) - # Variants break strict aliasing analysis. - gl_WARN_ADD([-fno-strict-aliasing], [NO_STRICT_ALIAS_CXXFLAGS]) + for i in $warn_tests; + do + gl_WARN_ADD([$i], [WARN_CXXFLAGS_TEST]) + done + # Clang++ 3.2+ reject C code generated by Flex. + gl_WARN_ADD([-Wno-null-conversion], [FLEX_SCANNER_CXXFLAGS]) + # So does G++ 4.8 in std=c++11 mode. + gl_WARN_ADD([-Wno-zero-as-null-pointer-constant], [FLEX_SCANNER_CXXFLAGS]) CXXFLAGS=$save_CXXFLAGS AC_LANG_POP([C++]) fi