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| author | Jim Meyering <meyering@redhat.com> | 2008-11-12 11:11:54 +0100 |
|---|---|---|
| committer | Jim Meyering <meyering@redhat.com> | 2008-12-21 17:49:58 +0100 |
| commit | 22a2a43021e8e82226d4b33189e77673b7326c95 (patch) | |
| tree | cd36b87521ab52d53ac12d930fddb698867727f6 /configure.ac | |
| parent | 4000c35ae3546aca05ece49ffa01ba2a763000b0 (diff) | |
| download | coreutils-22a2a43021e8e82226d4b33189e77673b7326c95.tar.xz | |
build: add configure-time --enable-gcc-warnings option; avoid warnings
* bootstrap.conf (gnulib_modules): Add "warnings" module.
* configure.ac: Add --enable-gcc-warnings, derived from code in bison.
* src/Makefile.am (AM_CFLAGS): Set to $(WARN_CFLAGS) # $(WERROR_CFLAGS)
* lib/Makefile.am (AM_CFLAGS): Change spelling to $(WARN_CFLAGS)
Don't use $(WERROR_CFLAGS), yet.
* src/system.h (usage): Declare.
* src/base64.c (usage): Declare to be global, for consistency.
* src/timeout.c (usage): Likewise.
* src/truncate.c (usage): Likewise.
* src/getlimits.c (usage): Likewise.
* src/pinky.c (ttyname): Declare with prototype, rather than an
empty argument list.
* src/who.c (ttyname): Likewise.
* src/su.c (crypt, getusershell, setusershell, endusershell): Likewise.
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 549c7ee2c..f165893a0 100644 --- a/configure.ac +++ b/configure.ac @@ -44,6 +44,39 @@ gl_EARLY gl_INIT coreutils_MACROS +AC_ARG_ENABLE([gcc-warnings], + [AS_HELP_STRING([--enable-gcc-warnings], + [turn on lots of GCC warnings (not recommended)])], + [case $enableval in + yes|no) ;; + *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;; + esac + gl_gcc_warnings=$enableval], + [gl_gcc_warnings=no] +) + +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]) + 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]) +fi + AC_FUNC_FORK optional_bin_progs= |