configure: Build with -Wstrict-prototypes if supported.
[wine] / aclocal.m4
1 dnl Macros used to build the Wine configure script
2 dnl
3 dnl Copyright 2002 Alexandre Julliard
4 dnl
5 dnl This library is free software; you can redistribute it and/or
6 dnl modify it under the terms of the GNU Lesser General Public
7 dnl License as published by the Free Software Foundation; either
8 dnl version 2.1 of the License, or (at your option) any later version.
9 dnl
10 dnl This library is distributed in the hope that it will be useful,
11 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
12 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13 dnl Lesser General Public License for more details.
14 dnl
15 dnl You should have received a copy of the GNU Lesser General Public
16 dnl License along with this library; if not, write to the Free Software
17 dnl Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
18 dnl
19 dnl As a special exception to the GNU Lesser General Public License,
20 dnl if you distribute this file as part of a program that contains a
21 dnl configuration script generated by Autoconf, you may include it
22 dnl under the same distribution terms that you use for the rest of
23 dnl that program.
24
25 dnl **** Get the ldd program name; used by WINE_GET_SONAME ****
26 dnl
27 dnl Usage: WINE_PATH_LDD
28 dnl
29 AC_DEFUN([WINE_PATH_LDD],[AC_PATH_PROG(LDD,ldd,true,/sbin:/usr/sbin:$PATH)])
30
31 dnl **** Extract the soname of a library ****
32 dnl
33 dnl Usage: WINE_CHECK_SONAME(library, function, [action-if-found, [action-if-not-found, [other_libraries, [pattern]]]])
34 dnl
35 AC_DEFUN([WINE_CHECK_SONAME],
36 [AC_REQUIRE([WINE_PATH_LDD])dnl
37 AS_VAR_PUSHDEF([ac_Lib],[ac_cv_lib_soname_$1])dnl
38 m4_pushdef([ac_lib_pattern],m4_default([$6],[lib$1]))dnl
39 AC_MSG_CHECKING([for -l$1])
40 AC_CACHE_VAL(ac_Lib,
41 [ac_check_soname_save_LIBS=$LIBS
42 LIBS="-l$1 $5 $LIBS"
43   AC_LINK_IFELSE([AC_LANG_CALL([], [$2])],
44   [case "$LIBEXT" in
45     dll) ;;
46     dylib) AS_VAR_SET(ac_Lib,[`otool -L conftest$ac_exeext | grep "ac_lib_pattern\\.[[0-9A-Za-z.]]*dylib" | sed -e "s/^.*\/\(ac_lib_pattern\.[[0-9A-Za-z.]]*dylib\).*$/\1/"';2,$d'`]) ;;
47     *) AS_VAR_SET(ac_Lib,[`$ac_cv_path_LDD conftest$ac_exeext | grep "ac_lib_pattern\\.$LIBEXT" | sed -e "s/^.*\(ac_lib_pattern\.$LIBEXT[[^      ]]*\).*$/\1/"';2,$d'`]) ;;
48   esac])
49   LIBS=$ac_check_soname_save_LIBS])dnl
50 AS_IF([test "x]AS_VAR_GET(ac_Lib)[" = "x"],
51       [AC_MSG_RESULT([not found])
52        $4],
53       [AC_MSG_RESULT(AS_VAR_GET(ac_Lib))
54        AC_DEFINE_UNQUOTED(AS_TR_CPP(SONAME_LIB$1),["]AS_VAR_GET(ac_Lib)["],
55                           [Define to the soname of the lib$1 library.])
56        $3])dnl
57 m4_popdef([ac_lib_pattern])dnl
58 AS_VAR_POPDEF([ac_Lib])])
59
60 dnl **** Link C code with an assembly file ****
61 dnl
62 dnl Usage: WINE_TRY_ASM_LINK(asm-code,includes,function,[action-if-found,[action-if-not-found]])
63 dnl
64 AC_DEFUN([WINE_TRY_ASM_LINK],
65 [AC_LINK_IFELSE(AC_LANG_PROGRAM([[$2]],[[asm($1); $3]]),[$4],[$5])])
66
67 dnl **** Check if we can link an empty program with special CFLAGS ****
68 dnl
69 dnl Usage: WINE_TRY_CFLAGS(flags,[action-if-yes,[action-if-no]])
70 dnl
71 dnl The default action-if-yes is to append the flags to EXTRACFLAGS.
72 dnl
73 AC_DEFUN([WINE_TRY_CFLAGS],
74 [AS_VAR_PUSHDEF([ac_var], ac_cv_cflags_[[$1]])dnl
75 AC_CACHE_CHECK([whether the compiler supports $1], ac_var,
76 [ac_wine_try_cflags_saved=$CFLAGS
77 CFLAGS="$CFLAGS $1"
78 AC_LINK_IFELSE(AC_LANG_SOURCE([int main(int argc, char *argv[]) { return 0; }]),
79                [AS_VAR_SET(ac_var,yes)], [AS_VAR_SET(ac_var,no)])
80 CFLAGS=$ac_wine_try_cflags_saved])
81 AS_IF([test AS_VAR_GET(ac_var) = yes],
82       [m4_default([$2], [EXTRACFLAGS="$EXTRACFLAGS $1"])], [$3])dnl
83 AS_VAR_POPDEF([ac_var])])
84
85 dnl **** Check if we can link an empty shared lib (no main) with special CFLAGS ****
86 dnl
87 dnl Usage: WINE_TRY_SHLIB_FLAGS(flags,[action-if-yes,[action-if-no]])
88 dnl
89 AC_DEFUN([WINE_TRY_SHLIB_FLAGS],
90 [ac_wine_try_cflags_saved=$CFLAGS
91 CFLAGS="$CFLAGS $1"
92 AC_LINK_IFELSE([void myfunc() {}],[$2],[$3])
93 CFLAGS=$ac_wine_try_cflags_saved])
94
95 dnl **** Check whether we need to define a symbol on the compiler command line ****
96 dnl
97 dnl Usage: WINE_CHECK_DEFINE(name),[action-if-yes,[action-if-no]])
98 dnl
99 AC_DEFUN([WINE_CHECK_DEFINE],
100 [AS_VAR_PUSHDEF([ac_var],[ac_cv_cpp_def_$1])dnl
101 AC_CACHE_CHECK([whether we need to define $1],ac_var,
102     AC_EGREP_CPP(yes,[#ifndef $1
103 yes
104 #endif],
105     [AS_VAR_SET(ac_var,yes)],[AS_VAR_SET(ac_var,no)]))
106 AS_IF([test AS_VAR_GET(ac_var) = yes],
107       [CFLAGS="$CFLAGS -D$1"
108   LINTFLAGS="$LINTFLAGS -D$1"])dnl
109 AS_VAR_POPDEF([ac_var])])
110
111 dnl **** Check for functions with some extra libraries ****
112 dnl
113 dnl Usage: WINE_CHECK_LIB_FUNCS(funcs,libs,[action-if-found,[action-if-not-found]])
114 dnl
115 AC_DEFUN([WINE_CHECK_LIB_FUNCS],
116 [ac_wine_check_funcs_save_LIBS="$LIBS"
117 LIBS="$LIBS $2"
118 AC_CHECK_FUNCS([$1],[$3],[$4])
119 LIBS="$ac_wine_check_funcs_save_LIBS"])
120
121 dnl **** Check for ln ****
122 dnl
123 dnl Usage: WINE_PROG_LN
124 dnl
125 AC_DEFUN([WINE_PROG_LN],
126 [AC_MSG_CHECKING([whether ln works])
127 rm -f conf$$ conf$$.file
128 echo >conf$$.file
129 if ln conf$$.file conf$$ 2>/dev/null; then
130   AC_SUBST(LN,ln)
131   AC_MSG_RESULT([yes])
132 else
133   AC_SUBST(LN,["cp -p"])
134   AC_MSG_RESULT([no, using $LN])
135 fi
136 rm -f conf$$ conf$$.file])
137
138 dnl **** Check for a mingw program, trying the various mingw prefixes ****
139 dnl
140 dnl Usage: WINE_CHECK_MINGW_PROG(variable,prog,[value-if-not-found],[path])
141 dnl
142 AC_DEFUN([WINE_CHECK_MINGW_PROG],
143 [AC_CHECK_PROGS([$1],
144    m4_foreach([ac_wine_prefix],
145               [$host_cpu-pc-mingw32, i586-mingw32msvc, i386-mingw32msvc, i686-mingw32, i586-mingw32, i486-mingw32, i386-mingw32, i686-pc-mingw32],
146               [ac_wine_prefix-$2 ]),
147    [$3],[$4])])
148
149
150 dnl **** Create nonexistent directories from config.status ****
151 dnl
152 dnl Usage: WINE_CONFIG_EXTRA_DIR(dirname)
153 dnl
154 AC_DEFUN([WINE_CONFIG_EXTRA_DIR],
155 [AC_CONFIG_COMMANDS([$1],[test -d "$1" || (AC_MSG_NOTICE([creating $1]) && mkdir "$1")])])
156
157 dnl **** Create a make rules file from config.status ****
158 dnl
159 dnl Usage: WINE_CONFIG_MAKERULES(file,var,deps)
160 dnl
161 AC_DEFUN([WINE_CONFIG_MAKERULES],
162 [ALL_MAKERULES="$ALL_MAKERULES \\
163         $1"
164 ALL_MAKEFILE_DEPENDS="$ALL_MAKEFILE_DEPENDS
165 $1: m4_ifval([$3],[$1.in $3],[$1.in])"
166 $2=$1
167 AC_SUBST_FILE([$2])dnl
168 AC_CONFIG_FILES([$1])])
169
170 dnl **** Create a makefile from config.status ****
171 dnl
172 dnl Usage: WINE_CONFIG_MAKEFILE(file,deps,prefix,var,enable)
173 dnl
174 AC_DEFUN([WINE_CONFIG_MAKEFILE],
175 [m4_pushdef([ac_dir],m4_bpatsubst([$1],[^\($3/?\(.*\)/\)?Makefile$],[\2]))dnl
176 m4_ifval(ac_dir,[ALL_MAKEFILES="$ALL_MAKEFILES \\
177         $1"])
178 AS_VAR_PUSHDEF([ac_enable],m4_default([$5],[enable_]ac_dir))dnl
179 m4_ifval([$4],[test "x$ac_enable" != xno]m4_foreach([ac_var],[$4],[ && ac_var="$ac_var \\
180         ac_dir"]))
181 AS_VAR_POPDEF([ac_enable])dnl
182 ALL_MAKEFILE_DEPENDS="$ALL_MAKEFILE_DEPENDS
183 [$1: ]m4_ifval([$2],[$1.in $2],[$1.in])"
184 AC_CONFIG_FILES([$1])dnl
185 m4_popdef([ac_dir])])
186
187 dnl **** Add a message to the list displayed at the end ****
188 dnl
189 dnl Usage: WINE_NOTICE(notice)
190 dnl Usage: WINE_NOTICE_WITH(with_flag, test, notice)
191 dnl Usage: WINE_WARNING(warning)
192 dnl Usage: WINE_WARNING_WITH(with_flag, test, warning)
193 dnl Usage: WINE_PRINT_MESSAGES
194 dnl
195 AC_DEFUN([WINE_NOTICE],[wine_notices="$wine_notices|$1"])
196 AC_DEFUN([WINE_WARNING],[wine_warnings="$wine_warnings|$1"])
197
198 AC_DEFUN([WINE_NOTICE_WITH],[AS_IF([$2],[case "x$with_$1" in
199   x)   WINE_NOTICE([$3]) ;;
200   xno) ;;
201   *)   AC_MSG_ERROR([$3
202 This is an error since --with-$1 was requested.]) ;;
203 esac])])
204
205 AC_DEFUN([WINE_WARNING_WITH],[AS_IF([$2],[case "x$with_$1" in
206   x)   WINE_WARNING([$3]) ;;
207   xno) ;;
208   *)   AC_MSG_ERROR([$3
209 This is an error since --with-$1 was requested.]) ;;
210 esac])])
211
212 AC_DEFUN([WINE_ERROR_WITH],[AS_IF([$2],[case "x$with_$1" in
213   xno) ;;
214   *)   AC_MSG_ERROR([$3
215 Use the --without-$1 option if you really want this.]) ;;
216 esac])])
217
218 AC_DEFUN([WINE_PRINT_MESSAGES],[ac_save_IFS="$IFS"
219 if test "x$wine_notices != "x; then
220     echo >&AS_MESSAGE_FD
221     IFS="|"
222     for msg in $wine_notices; do
223         IFS="$ac_save_IFS"
224         if test -n "$msg"; then
225             AC_MSG_NOTICE([$msg])
226         fi
227     done
228 fi
229 IFS="|"
230 for msg in $wine_warnings; do
231     IFS="$ac_save_IFS"
232     if test -n "$msg"; then
233         echo >&2
234         AC_MSG_WARN([$msg])
235     fi
236 done
237 IFS="$ac_save_IFS"])
238
239 dnl Local Variables:
240 dnl compile-command: "autoreconf --warnings=all"
241 dnl End: