Enable -Wall flag for compilers that support it
Add Autoconf archive macros to check for -Wall and its dependencies. Adjust m4/.gitignore to only ignore libtool macros. Require Autoconf 2.65 for compatibility with Autoconf archive macros.
This commit is contained in:
Pavel Roskin
parent
e0a9c769e0
commit
4da6f8a538
@ -1,6 +1,6 @@
|
||||
# Process this file with autoconf to produce a configure script
|
||||
|
||||
AC_PREREQ(2.59)
|
||||
AC_PREREQ(2.65)
|
||||
AC_INIT([xrdp], [0.9.0], [xrdp-devel@googlegroups.com])
|
||||
AC_CONFIG_HEADERS(config_ac.h:config_ac-h.in)
|
||||
AM_INIT_AUTOMAKE([1.7.2 foreign])
|
||||
@ -13,6 +13,8 @@ PKG_PROG_PKG_CONFIG
|
||||
# Use silent rules by default if supported by Automake
|
||||
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
|
||||
|
||||
AX_CFLAGS_WARN_ALL
|
||||
|
||||
case $host_os in
|
||||
*linux*)
|
||||
linux=yes
|
||||
|
||||
3
m4/.gitignore
vendored
3
m4/.gitignore
vendored
@ -1 +1,2 @@
|
||||
*.m4
|
||||
libtool.m4
|
||||
lt*.m4
|
||||
|
||||
71
m4/ax_append_flag.m4
Normal file
71
m4/ax_append_flag.m4
Normal file
@ -0,0 +1,71 @@
|
||||
# ===========================================================================
|
||||
# http://www.gnu.org/software/autoconf-archive/ax_append_flag.html
|
||||
# ===========================================================================
|
||||
#
|
||||
# SYNOPSIS
|
||||
#
|
||||
# AX_APPEND_FLAG(FLAG, [FLAGS-VARIABLE])
|
||||
#
|
||||
# DESCRIPTION
|
||||
#
|
||||
# FLAG is appended to the FLAGS-VARIABLE shell variable, with a space
|
||||
# added in between.
|
||||
#
|
||||
# If FLAGS-VARIABLE is not specified, the current language's flags (e.g.
|
||||
# CFLAGS) is used. FLAGS-VARIABLE is not changed if it already contains
|
||||
# FLAG. If FLAGS-VARIABLE is unset in the shell, it is set to exactly
|
||||
# FLAG.
|
||||
#
|
||||
# NOTE: Implementation based on AX_CFLAGS_GCC_OPTION.
|
||||
#
|
||||
# LICENSE
|
||||
#
|
||||
# Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
|
||||
# Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com>
|
||||
#
|
||||
# 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 the
|
||||
# Free Software Foundation, either version 3 of the License, or (at your
|
||||
# option) any later version.
|
||||
#
|
||||
# This program is distributed in the hope that it will be useful, but
|
||||
# WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
|
||||
# Public License for more details.
|
||||
#
|
||||
# You should have received a copy of the GNU General Public License along
|
||||
# with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
#
|
||||
# As a special exception, the respective Autoconf Macro's copyright owner
|
||||
# gives unlimited permission to copy, distribute and modify the configure
|
||||
# scripts that are the output of Autoconf when processing the Macro. You
|
||||
# need not follow the terms of the GNU General Public License when using
|
||||
# or distributing such scripts, even though portions of the text of the
|
||||
# Macro appear in them. The GNU General Public License (GPL) does govern
|
||||
# all other use of the material that constitutes the Autoconf Macro.
|
||||
#
|
||||
# This special exception to the GPL applies to versions of the Autoconf
|
||||
# Macro released by the Autoconf Archive. When you make and distribute a
|
||||
# modified version of the Autoconf Macro, you may extend this special
|
||||
# exception to the GPL to apply to your modified version as well.
|
||||
|
||||
#serial 6
|
||||
|
||||
AC_DEFUN([AX_APPEND_FLAG],
|
||||
[dnl
|
||||
AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_SET_IF
|
||||
AS_VAR_PUSHDEF([FLAGS], [m4_default($2,_AC_LANG_PREFIX[FLAGS])])
|
||||
AS_VAR_SET_IF(FLAGS,[
|
||||
AS_CASE([" AS_VAR_GET(FLAGS) "],
|
||||
[*" $1 "*], [AC_RUN_LOG([: FLAGS already contains $1])],
|
||||
[
|
||||
AS_VAR_APPEND(FLAGS,[" $1"])
|
||||
AC_RUN_LOG([: FLAGS="$FLAGS"])
|
||||
])
|
||||
],
|
||||
[
|
||||
AS_VAR_SET(FLAGS,[$1])
|
||||
AC_RUN_LOG([: FLAGS="$FLAGS"])
|
||||
])
|
||||
AS_VAR_POPDEF([FLAGS])dnl
|
||||
])dnl AX_APPEND_FLAG
|
||||
122
m4/ax_cflags_warn_all.m4
Normal file
122
m4/ax_cflags_warn_all.m4
Normal file
@ -0,0 +1,122 @@
|
||||
# ===========================================================================
|
||||
# http://www.gnu.org/software/autoconf-archive/ax_cflags_warn_all.html
|
||||
# ===========================================================================
|
||||
#
|
||||
# SYNOPSIS
|
||||
#
|
||||
# AX_CFLAGS_WARN_ALL [(shellvar [,default, [A/NA]])]
|
||||
# AX_CXXFLAGS_WARN_ALL [(shellvar [,default, [A/NA]])]
|
||||
# AX_FCFLAGS_WARN_ALL [(shellvar [,default, [A/NA]])]
|
||||
#
|
||||
# DESCRIPTION
|
||||
#
|
||||
# Try to find a compiler option that enables most reasonable warnings.
|
||||
#
|
||||
# For the GNU compiler it will be -Wall (and -ansi -pedantic) The result
|
||||
# is added to the shellvar being CFLAGS, CXXFLAGS, or FCFLAGS by default.
|
||||
#
|
||||
# Currently this macro knows about the GCC, Solaris, Digital Unix, AIX,
|
||||
# HP-UX, IRIX, NEC SX-5 (Super-UX 10), Cray J90 (Unicos 10.0.0.8), and
|
||||
# Intel compilers. For a given compiler, the Fortran flags are much more
|
||||
# experimental than their C equivalents.
|
||||
#
|
||||
# - $1 shell-variable-to-add-to : CFLAGS, CXXFLAGS, or FCFLAGS
|
||||
# - $2 add-value-if-not-found : nothing
|
||||
# - $3 action-if-found : add value to shellvariable
|
||||
# - $4 action-if-not-found : nothing
|
||||
#
|
||||
# NOTE: These macros depend on AX_APPEND_FLAG.
|
||||
#
|
||||
# LICENSE
|
||||
#
|
||||
# Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
|
||||
# Copyright (c) 2010 Rhys Ulerich <rhys.ulerich@gmail.com>
|
||||
#
|
||||
# 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 the
|
||||
# Free Software Foundation; either version 3 of the License, or (at your
|
||||
# option) any later version.
|
||||
#
|
||||
# This program is distributed in the hope that it will be useful, but
|
||||
# WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
|
||||
# Public License for more details.
|
||||
#
|
||||
# You should have received a copy of the GNU General Public License along
|
||||
# with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
#
|
||||
# As a special exception, the respective Autoconf Macro's copyright owner
|
||||
# gives unlimited permission to copy, distribute and modify the configure
|
||||
# scripts that are the output of Autoconf when processing the Macro. You
|
||||
# need not follow the terms of the GNU General Public License when using
|
||||
# or distributing such scripts, even though portions of the text of the
|
||||
# Macro appear in them. The GNU General Public License (GPL) does govern
|
||||
# all other use of the material that constitutes the Autoconf Macro.
|
||||
#
|
||||
# This special exception to the GPL applies to versions of the Autoconf
|
||||
# Macro released by the Autoconf Archive. When you make and distribute a
|
||||
# modified version of the Autoconf Macro, you may extend this special
|
||||
# exception to the GPL to apply to your modified version as well.
|
||||
|
||||
#serial 15
|
||||
|
||||
AC_DEFUN([AX_FLAGS_WARN_ALL],[dnl
|
||||
AS_VAR_PUSHDEF([FLAGS],[_AC_LANG_PREFIX[]FLAGS])dnl
|
||||
AS_VAR_PUSHDEF([VAR],[ac_cv_[]_AC_LANG_ABBREV[]flags_warn_all])dnl
|
||||
AC_CACHE_CHECK([m4_ifval($1,$1,FLAGS) for maximum warnings],
|
||||
VAR,[VAR="no, unknown"
|
||||
ac_save_[]FLAGS="$[]FLAGS"
|
||||
for ac_arg dnl
|
||||
in "-warn all % -warn all" dnl Intel
|
||||
"-pedantic % -Wall" dnl GCC
|
||||
"-xstrconst % -v" dnl Solaris C
|
||||
"-std1 % -verbose -w0 -warnprotos" dnl Digital Unix
|
||||
"-qlanglvl=ansi % -qsrcmsg -qinfo=all:noppt:noppc:noobs:nocnd" dnl AIX
|
||||
"-ansi -ansiE % -fullwarn" dnl IRIX
|
||||
"+ESlit % +w1" dnl HP-UX C
|
||||
"-Xc % -pvctl[,]fullmsg" dnl NEC SX-5 (Super-UX 10)
|
||||
"-h conform % -h msglevel 2" dnl Cray C (Unicos)
|
||||
#
|
||||
do FLAGS="$ac_save_[]FLAGS "`echo $ac_arg | sed -e 's,%%.*,,' -e 's,%,,'`
|
||||
AC_COMPILE_IFELSE([AC_LANG_PROGRAM],
|
||||
[VAR=`echo $ac_arg | sed -e 's,.*% *,,'` ; break])
|
||||
done
|
||||
FLAGS="$ac_save_[]FLAGS"
|
||||
])
|
||||
AS_VAR_POPDEF([FLAGS])dnl
|
||||
AX_REQUIRE_DEFINED([AX_APPEND_FLAG])
|
||||
case ".$VAR" in
|
||||
.ok|.ok,*) m4_ifvaln($3,$3) ;;
|
||||
.|.no|.no,*) m4_default($4,[m4_ifval($2,[AX_APPEND_FLAG([$2], [$1])])]) ;;
|
||||
*) m4_default($3,[AX_APPEND_FLAG([$VAR], [$1])]) ;;
|
||||
esac
|
||||
AS_VAR_POPDEF([VAR])dnl
|
||||
])dnl AX_FLAGS_WARN_ALL
|
||||
dnl implementation tactics:
|
||||
dnl the for-argument contains a list of options. The first part of
|
||||
dnl these does only exist to detect the compiler - usually it is
|
||||
dnl a global option to enable -ansi or -extrawarnings. All other
|
||||
dnl compilers will fail about it. That was needed since a lot of
|
||||
dnl compilers will give false positives for some option-syntax
|
||||
dnl like -Woption or -Xoption as they think of it is a pass-through
|
||||
dnl to later compile stages or something. The "%" is used as a
|
||||
dnl delimiter. A non-option comment can be given after "%%" marks
|
||||
dnl which will be shown but not added to the respective C/CXXFLAGS.
|
||||
|
||||
AC_DEFUN([AX_CFLAGS_WARN_ALL],[dnl
|
||||
AC_LANG_PUSH([C])
|
||||
AX_FLAGS_WARN_ALL([$1], [$2], [$3], [$4])
|
||||
AC_LANG_POP([C])
|
||||
])
|
||||
|
||||
AC_DEFUN([AX_CXXFLAGS_WARN_ALL],[dnl
|
||||
AC_LANG_PUSH([C++])
|
||||
AX_FLAGS_WARN_ALL([$1], [$2], [$3], [$4])
|
||||
AC_LANG_POP([C++])
|
||||
])
|
||||
|
||||
AC_DEFUN([AX_FCFLAGS_WARN_ALL],[dnl
|
||||
AC_LANG_PUSH([Fortran])
|
||||
AX_FLAGS_WARN_ALL([$1], [$2], [$3], [$4])
|
||||
AC_LANG_POP([Fortran])
|
||||
])
|
||||
37
m4/ax_require_defined.m4
Normal file
37
m4/ax_require_defined.m4
Normal file
@ -0,0 +1,37 @@
|
||||
# ===========================================================================
|
||||
# http://www.gnu.org/software/autoconf-archive/ax_require_defined.html
|
||||
# ===========================================================================
|
||||
#
|
||||
# SYNOPSIS
|
||||
#
|
||||
# AX_REQUIRE_DEFINED(MACRO)
|
||||
#
|
||||
# DESCRIPTION
|
||||
#
|
||||
# AX_REQUIRE_DEFINED is a simple helper for making sure other macros have
|
||||
# been defined and thus are available for use. This avoids random issues
|
||||
# where a macro isn't expanded. Instead the configure script emits a
|
||||
# non-fatal:
|
||||
#
|
||||
# ./configure: line 1673: AX_CFLAGS_WARN_ALL: command not found
|
||||
#
|
||||
# It's like AC_REQUIRE except it doesn't expand the required macro.
|
||||
#
|
||||
# Here's an example:
|
||||
#
|
||||
# AX_REQUIRE_DEFINED([AX_CHECK_LINK_FLAG])
|
||||
#
|
||||
# LICENSE
|
||||
#
|
||||
# Copyright (c) 2014 Mike Frysinger <vapier@gentoo.org>
|
||||
#
|
||||
# Copying and distribution of this file, with or without modification, are
|
||||
# permitted in any medium without royalty provided the copyright notice
|
||||
# and this notice are preserved. This file is offered as-is, without any
|
||||
# warranty.
|
||||
|
||||
#serial 1
|
||||
|
||||
AC_DEFUN([AX_REQUIRE_DEFINED], [dnl
|
||||
m4_ifndef([$1], [m4_fatal([macro ]$1[ is not defined; is a m4 file missing?])])
|
||||
])dnl AX_REQUIRE_DEFINED
|
||||
Loading…
Reference in New Issue
Block a user