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Add more compiler warning flags
Signed-off-by: David Oberhollenzer <david.oberhollenzer@tele2.at>
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parent
6cf0a254cd
commit
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3 changed files with 65 additions and 1 deletions
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@ -1,7 +1,7 @@
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ACLOCAL_AMFLAGS = -I m4
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AM_CPPFLAGS = -D_GNU_SOURCE -I$(top_srcdir)/lib/include
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AM_CFLAGS = -std=c99 -pedantic -Wall -Wextra
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AM_CFLAGS = -std=c99 $(WARN_CFLAGS)
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sbin_PROGRAMS =
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noinst_LIBRARIES =
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24
configure.ac
24
configure.ac
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@ -21,6 +21,30 @@ AC_ARG_WITH([pygos],
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[AM_CONDITIONAL([PYGOSCFG], [true])])
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UL_WARN_ADD([-Wall])
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UL_WARN_ADD([-Wextra])
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UL_WARN_ADD([-Wunused])
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UL_WARN_ADD([-Wmissing-prototypes])
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UL_WARN_ADD([-Wmissing-declarations])
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UL_WARN_ADD([-Wwrite-strings])
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UL_WARN_ADD([-Wjump-misses-init])
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UL_WARN_ADD([-Wuninitialized])
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UL_WARN_ADD([-Winit-self])
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UL_WARN_ADD([-Wlogical-op])
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UL_WARN_ADD([-Wunused-but-set-parameter])
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UL_WARN_ADD([-Wunused-but-set-variable])
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UL_WARN_ADD([-Wunused-parameter])
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UL_WARN_ADD([-Wunused-result])
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UL_WARN_ADD([-Wunused-variable])
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UL_WARN_ADD([-Wduplicated-cond])
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UL_WARN_ADD([-Wduplicated-branches])
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UL_WARN_ADD([-Wrestrict])
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UL_WARN_ADD([-Wnull-dereference])
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UL_WARN_ADD([-pedantic])
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AC_SUBST([WARN_CFLAGS])
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AC_CONFIG_HEADERS([lib/include/config.h])
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AC_DEFINE_DIR(SVCDIR, sysconfdir/init.d, [Startup service directory])
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AC_DEFINE_DIR(TEMPLATEDIR, datadir/init, [Service template directory])
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40
m4/compiler.m4
Normal file
40
m4/compiler.m4
Normal file
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@ -0,0 +1,40 @@
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dnl Copyright (C) 2008-2011 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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dnl From Simon Josefsson
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dnl -- derivated from coreutils m4/warnings.m4
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# UL_AS_VAR_APPEND(VAR, VALUE)
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# ----------------------------
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# Provide the functionality of AS_VAR_APPEND if Autoconf does not have it.
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m4_ifdef([AS_VAR_APPEND],
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[m4_copy([AS_VAR_APPEND], [UL_AS_VAR_APPEND])],
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[m4_define([UL_AS_VAR_APPEND],
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[AS_VAR_SET([$1], [AS_VAR_GET([$1])$2])])])
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# UL_ADD_WARN(COMPILER_OPTION [, VARNAME])
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# ------------------------
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# Adds parameter to WARN_CFLAGS (or to $VARNAME) if the compiler supports it.
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AC_DEFUN([UL_WARN_ADD], [
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m4_define([warnvarname], m4_default([$2],WARN_CFLAGS))
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AS_VAR_PUSHDEF([ul_Warn], [ul_cv_warn_$1])dnl
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AC_CACHE_CHECK([whether compiler handles $1], m4_defn([ul_Warn]), [
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# store AC_LANG_WERROR status, then turn it on
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save_ac_[]_AC_LANG_ABBREV[]_werror_flag="${ac_[]_AC_LANG_ABBREV[]_werror_flag}"
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AC_LANG_WERROR
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ul_save_CPPFLAGS="$CPPFLAGS"
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CPPFLAGS="-Werror ${CPPFLAGS} $1"
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AC_PREPROC_IFELSE([AC_LANG_PROGRAM([])],
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[AS_VAR_SET(ul_Warn, [yes])],
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[AS_VAR_SET(ul_Warn, [no])])
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# restore AC_LANG_WERROR
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ac_[]_AC_LANG_ABBREV[]_werror_flag="${save_ac_[]_AC_LANG_ABBREV[]_werror_flag}"
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CPPFLAGS="$ul_save_CPPFLAGS"
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])
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AS_VAR_IF(ul_Warn, [yes], [UL_AS_VAR_APPEND(warnvarname, [" $1"])])
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])
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