Code

src/Makefile: Print some useful information after a successful built.
[lm2latex.git] / configure.ac
1 dnl Process this file with autoconf to produce a configure script.
2 dnl
3 dnl This is the lm2latex configure script.
4 dnl
5 dnl Copyright (C) 2010 Sebastian Harl <sh@tokkee.org>
6 dnl All rights reserved.
7 dnl
8 dnl Redistribution and use in source and binary forms, with or without
9 dnl modification, are permitted provided that the following conditions
10 dnl are met:
11 dnl 1. Redistributions of source code must retain the above copyright
12 dnl    notice, this list of conditions and the following disclaimer.
13 dnl 2. Redistributions in binary form must reproduce the above copyright
14 dnl    notice, this list of conditions and the following disclaimer in the
15 dnl    documentation and/or other materials provided with the distribution.
16 dnl
17 dnl THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18 dnl ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
19 dnl TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
20 dnl PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR
21 dnl CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
22 dnl EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
23 dnl PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
24 dnl OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
25 dnl WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
26 dnl OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
27 dnl ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 AC_INIT([lm2latex],[m4_esyscmd(./version-gen.sh)],
30                 [Sebastian Harl <sh@tokkee.org>], [],
31                 [http://git.tokkee.org/?p=lm2latex.git])
32 AC_CONFIG_SRCDIR([src/lm2latex.c])
33 AC_CONFIG_HEADERS([src/config.h])
34 AC_PREFIX_DEFAULT([/opt/lm2latex])
36 AM_INIT_AUTOMAKE([foreign -Wall])
38 AC_LANG(C)
40 AC_SYS_LARGEFILE
42 AC_PROG_CC
43 AC_PROG_CPP
44 AC_PROG_INSTALL
45 AC_PROG_LN_S
46 AC_PROG_MAKE_SET
48 AM_PROG_CC_C_O
49 AM_PROG_LEX
51 m4_ifdef([LT_INIT],
52         [
53          LT_INIT
54         ],
55         # else
56         # (older libtools)
57         [
58          AC_PROG_LIBTOOL
59         ]
60 )
62 test_cc_flags() {
63         AC_LANG_CONFTEST([int main() {}])
64         $CC -c conftest.c $CFLAGS $@ > /dev/null 2> /dev/null
65         ret=$?
66         rm -f conftest.o
67         return $ret
68 }
70 m4_divert_once([HELP_ENABLE], [
71 Build options:])
73 dnl Optionally stick to standard C99 and POSIX:2001 as close as possible.
74 AC_ARG_ENABLE([standards],
75                 AS_HELP_STRING([--enable-standards],
76                                 [C99 / POSIX standards compliance mode @<:@default=no@:>@]),
77                 [enable_standards="$enableval"],
78                 [enable_standards="no"])
80 if test "x$enable_standards" = "xyes"; then
81         AC_DEFINE([_ISOC99_SOURCE], 1,
82                         [Define to enforce ISO/IEC 9899:1999 (C99) compliance.])
83         AC_DEFINE([_POSIX_C_SOURCE], 200112L,
84                         [Define to enforce IEEE 1003.1-2001 (POSIX:2001) compliance.])
85         AC_DEFINE([_XOPEN_SOURCE], 600,
86                         [Define to enforce X/Open 6 (XSI) compliance.])
87         AC_DEFINE([_REENTRANT], 1,
88                         [Define to enable reentrant interfaces.])
89         AC_DEFINE([_THREAD_SAFE], 1,
90                         [Define to enable reentrant interfaces.])
92         for flag in -std=c99 -pedantic; do
93                 AC_MSG_CHECKING([whether $CC accepts $flag])
95                 if test_cc_flags $flag; then
96                         CFLAGS="$CFLAGS $flag"
97                         AC_MSG_RESULT([yes])
98                 else
99                         AC_MSG_RESULT([no])
100                 fi
101         done
102 fi
104 dnl Hardening (see e.g. http://wiki.debian.org/Hardening for a motivation).
105 AC_DEFINE([_FORTIFY_SOURCE], 2,
106                 [Define to enable protection against static sized buffer overflows.])
107 AC_ARG_ENABLE([hardening],
108                 AS_HELP_STRING([--disable-hardening],
109                                 [hardening options @<:@default=yes@:>@]),
110                 [enable_hardening="$enableval"],
111                 [enable_hardening="yes"])
113 if test "x$enable_hardening" = "xyes"; then
114         hardening=0
115         hardening_tests=0
116         for flag in -Wformat -Wformat-security; do
117                 hardening_tests=$(($hardening_tests + 1))
118                 AC_MSG_CHECKING([whether $CC accepts $flag])
120                 if test_cc_flags $flag; then
121                         CFLAGS="$CFLAGS $flag"
122                         hardening=$(($hardening + 1))
123                         AC_MSG_RESULT([yes])
124                 else
125                         AC_MSG_RESULT([no])
126                 fi
127         done
128         if test $hardening -ne $hardening_tests; then
129                 AC_MSG_WARN(
130                                 [Some hardening options are not supported by your compiler!])
131         fi
132 fi
134 dnl Strict checking for potential problems.
135 AC_ARG_ENABLE([strict-checks],
136                 AS_HELP_STRING([--disable-strict-checks],
137                                 [strict compiler checks @<:@default=yes@:>@]),
138                 [enable_strict_checks="$enableval"],
139                 [enable_strict_checks="yes"])
141 STRICT_CFLAGS=""
142 for flag in -Wall -Werror; do
143         AC_MSG_CHECKING([whether $CC accepts $flag])
145         if test_cc_flags $flag; then
146                 STRICT_CFLAGS="$STRICT_CFLAGS $flag"
147                 AC_MSG_RESULT([yes])
148         else
149                 AC_MSG_RESULT([no])
150         fi
151 done
153 if test "x$enable_strict_checks" = "xyes"; then
154         for flag in -Wextra \
155                         -Wbad-function-cast \
156                         -Wcast-align \
157                         -Wcast-qual \
158                         -Wconversion \
159                         -Wdeclaration-after-statement \
160                         -Wmissing-prototypes \
161                         -Wpointer-arith \
162                         -Wshadow \
163                         -Wstrict-prototypes; do
164                 AC_MSG_CHECKING([whether $CC accepts $flag])
166                 if test_cc_flags $flag; then
167                         STRICT_CFLAGS="$STRICT_CFLAGS $flag"
168                         AC_MSG_RESULT([yes])
169                 else
170                         AC_MSG_RESULT([no])
171                 fi
172         done
173 fi
174 AC_SUBST([STRICT_CFLAGS])
176 AC_CHECK_HEADERS(libgen.h)
178 AC_CONFIG_FILES([Makefile src/Makefile])
179 AC_OUTPUT
181 cat <<EOF;
183 $PACKAGE_NAME has been configured successfully.
185 Run 'make' to compile the software and use 'make install' to
186 install the package into $prefix.
188 Configuration summary:
190   package version: $PACKAGE_VERSION
191   build date: `date --utc '+%F %T'` (UTC)
193 Please report bugs to $PACKAGE_BUGREPORT.
195 EOF