diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 57 |
1 files changed, 43 insertions, 14 deletions
diff --git a/configure.ac b/configure.ac index 99452c82a..f10191fa8 100644 --- a/configure.ac +++ b/configure.ac @@ -1,7 +1,7 @@ # -*- autoconf -*- # Process this file with autoconf to produce a configure script. -# Copyright (C) 1991, 1993-2008 Free Software Foundation, Inc. +# Copyright (C) 1991, 1993-2009 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 @@ -58,23 +58,52 @@ AC_ARG_ENABLE([gcc-warnings], if test "$gl_gcc_warnings" = yes; then gl_WARN_ADD([-Werror], [WERROR_CFLAGS]) AC_SUBST([WERROR_CFLAGS]) - gl_WARN_ADD([-Wall]) - gl_WARN_ADD([-Wextra]) - gl_WARN_ADD([-Wshadow]) - gl_WARN_ADD([-Wno-sign-compare]) - gl_WARN_ADD([-Wformat]) - gl_WARN_ADD([-Wformat-security]) - gl_WARN_ADD([-Wcast-align]) - gl_WARN_ADD([-Wpointer-arith]) - gl_WARN_ADD([-Wwrite-strings]) - gl_WARN_ADD([-Wbad-function-cast]) - gl_WARN_ADD([-Wmissing-declarations]) - gl_WARN_ADD([-Wmissing-prototypes]) - gl_WARN_ADD([-Wstrict-prototypes]) + + # Add many warnings, except some... + nw="$nw -Wdeclaration-after-statement" # too useful to forbid + nw="$nw -Waggregate-return" # anachronistic + nw="$nw -Wc++-compat" # We don't care about C++ compilers + nw="$nw -Wundef" # Warns on '#if GNULIB_FOO' etc in gnulib + nw="$nw -Wtraditional" # Warns on #elif which we use often + nw="$nw -Wcast-qual" # Too many warnings for now + nw="$nw -Wconversion" # Too many warnings for now + nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings + nw="$nw -Wsign-conversion" # Too many warnings for now + nw="$nw -Wtraditional-conversion" # Too many warnings for now + nw="$nw -Wunreachable-code" # Too many warnings for now + nw="$nw -Wpadded" # Our structs are not padded + nw="$nw -Wredundant-decls" # openat.h declares e.g., mkdirat + nw="$nw -Wlogical-op" # any use of fwrite provokes this + nw="$nw -Wformat-nonliteral" # who.c and pinky.c strftime uses + nw="$nw -Wvla" # warnings in gettext.h + nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__ + nw="$nw -Wswitch-enum" # Too many warnings for now + nw="$nw -Wswitch-default" # Too many warnings for now + # things I might fix soon: + nw="$nw -Wfloat-equal" # sort.c, seq.c + nw="$nw -Wmissing-format-attribute" # copy.c + nw="$nw -Wunsafe-loop-optimizations" # a few src/*.c + nw="$nw -Winline" # system.h's readdir_ignoring_dot_and_dotdot + nw="$nw -Wstrict-overflow" # expr.c, pr.c, tr.c, factor.c + # ?? -Wstrict-overflow + + gl_MANYWARN_ALL_GCC([ws]) + gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw]) + for w in $ws; do + gl_WARN_ADD([$w]) + done + gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one + gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now + gl_WARN_ADD([-Wno-pointer-sign]) # Too many warnings for now + gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now + gl_WARN_ADD([-fdiagnostics-show-option]) + AC_SUBST([WARN_CFLAGS]) + AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.]) AC_DEFINE([_FORTIFY_SOURCE], [2], [enable compile-time and run-time bounds-checking, and some warnings]) + AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks]) fi AC_FUNC_FORK |