ntdll: Constify some variables.
[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_GET_SONAME(LIBRARY, FUNCTION, [OTHER_LIBRARIES])
34 dnl
35 AC_DEFUN([WINE_GET_SONAME],
36 [AC_REQUIRE([WINE_PATH_LDD])dnl
37 AS_VAR_PUSHDEF([ac_Lib],[ac_cv_lib_soname_$1])dnl
38 AC_CACHE_CHECK([for -l$1 soname], ac_Lib,
39 [ac_get_soname_save_LIBS=$LIBS
40 LIBS="-l$1 $3 $LIBS"
41   AC_LINK_IFELSE([AC_LANG_CALL([], [$2])],
42   [case "$LIBEXT" in
43     dylib) AS_VAR_SET(ac_Lib,[`otool -L conftest$ac_exeext | grep lib$1\\.[[0-9A-Za-z.]]*dylib | sed -e "s/^.*\/\(lib$1\.[[0-9A-Za-z.]]*dylib\).*$/\1/"';2,$d'`]) ;;
44     so) AS_VAR_SET(ac_Lib,[`$ac_cv_path_LDD conftest$ac_exeext | grep lib$1\\.so | sed -e "s/^.*\(lib$1\.so[[^   ]]*\).*$/\1/"';2,$d'`]) ;;
45   esac
46   if test "x$ac_Lib" = "x"
47   then
48      AS_VAR_SET(ac_Lib,"lib$1.$LIBEXT")
49   fi],
50   [AS_VAR_SET(ac_Lib,"lib$1.$LIBEXT")])
51   LIBS=$ac_get_soname_save_LIBS])
52 AS_VAR_SET_IF(ac_Lib,[AC_DEFINE_UNQUOTED(AS_TR_CPP(SONAME_LIB$1),["]AS_VAR_GET(ac_Lib)["],
53                         [Define to the soname of the lib$1 library.])])dnl
54 AS_VAR_POPDEF([ac_Lib])])
55
56 dnl **** Link C code with an assembly file ****
57 dnl
58 dnl Usage: WINE_TRY_ASM_LINK(asm-code,includes,function,[action-if-found,[action-if-not-found]])
59 dnl
60 AC_DEFUN([WINE_TRY_ASM_LINK],
61 [AC_LINK_IFELSE(AC_LANG_PROGRAM([[$2]],[[asm($1); $3]]),[$4],[$5])])
62
63 dnl **** Check if we can link an empty program with special CFLAGS ****
64 dnl
65 dnl Usage: WINE_TRY_CFLAGS(flags,[action-if-yes,[action-if-no]])
66 dnl
67 dnl The default action-if-yes is to append the flags to EXTRACFLAGS.
68 dnl
69 AC_DEFUN([WINE_TRY_CFLAGS],
70 [AS_VAR_PUSHDEF([ac_var], ac_cv_cflags_[[$1]])dnl
71 AC_CACHE_CHECK([whether the compiler supports $1], ac_var,
72 [ac_wine_try_cflags_saved=$CFLAGS
73 CFLAGS="$CFLAGS $1"
74 AC_LINK_IFELSE(AC_LANG_PROGRAM(), [AS_VAR_SET(ac_var,yes)], [AS_VAR_SET(ac_var,no)])
75 CFLAGS=$ac_wine_try_cflags_saved])
76 AS_IF([test AS_VAR_GET(ac_var) = yes],
77       [m4_default([$2], [EXTRACFLAGS="$EXTRACFLAGS $1"])], [$3])dnl
78 AS_VAR_POPDEF([ac_var])])
79
80 dnl **** Check if we can link an empty shared lib (no main) with special CFLAGS ****
81 dnl
82 dnl Usage: WINE_TRY_SHLIB_FLAGS(flags,[action-if-yes,[action-if-no]])
83 dnl
84 AC_DEFUN([WINE_TRY_SHLIB_FLAGS],
85 [ac_wine_try_cflags_saved=$CFLAGS
86 CFLAGS="$CFLAGS $1"
87 AC_LINK_IFELSE([void myfunc() {}],[$2],[$3])
88 CFLAGS=$ac_wine_try_cflags_saved])
89
90 dnl **** Check whether we need to define a symbol on the compiler command line ****
91 dnl
92 dnl Usage: WINE_CHECK_DEFINE(name),[action-if-yes,[action-if-no]])
93 dnl
94 AC_DEFUN([WINE_CHECK_DEFINE],
95 [AS_VAR_PUSHDEF([ac_var],[ac_cv_cpp_def_$1])dnl
96 AC_CACHE_CHECK([whether we need to define $1],ac_var,
97     AC_EGREP_CPP(yes,[#ifndef $1
98 yes
99 #endif],
100     [AS_VAR_SET(ac_var,yes)],[AS_VAR_SET(ac_var,no)]))
101 AS_IF([test AS_VAR_GET(ac_var) = yes],
102       [CFLAGS="$CFLAGS -D$1"
103   LINTFLAGS="$LINTFLAGS -D$1"])dnl
104 AS_VAR_POPDEF([ac_var])])
105
106 dnl **** Check for functions with some extra libraries ****
107 dnl
108 dnl Usage: WINE_CHECK_LIB_FUNCS(funcs,libs,[action-if-found,[action-if-not-found]])
109 dnl
110 AC_DEFUN([WINE_CHECK_LIB_FUNCS],
111 [ac_wine_check_funcs_save_LIBS="$LIBS"
112 LIBS="$LIBS $2"
113 AC_CHECK_FUNCS([$1],[$3],[$4])
114 LIBS="$ac_wine_check_funcs_save_LIBS"])
115
116 dnl **** Check for ln ****
117 dnl
118 dnl Usage: WINE_PROG_LN
119 dnl
120 AC_DEFUN([WINE_PROG_LN],
121 [AC_MSG_CHECKING([whether ln works])
122 rm -f conf$$ conf$$.file
123 echo >conf$$.file
124 if ln conf$$.file conf$$ 2>/dev/null; then
125   AC_SUBST(LN,ln)
126   AC_MSG_RESULT([yes])
127 else
128   AC_SUBST(LN,["cp -p"])
129   AC_MSG_RESULT([no, using $LN])
130 fi
131 rm -f conf$$ conf$$.file])
132
133 dnl **** Check for a mingw program, trying the various mingw prefixes ****
134 dnl
135 dnl Usage: WINE_CHECK_MINGW_PROG(variable,prog,[value-if-not-found],[path])
136 dnl
137 AC_DEFUN([WINE_CHECK_MINGW_PROG],
138 [AC_CHECK_PROGS([$1],
139    m4_foreach([ac_wine_prefix],
140               [i586-mingw32msvc, i386-mingw32msvc, i386-mingw32, mingw32, mingw],
141               [ac_wine_prefix-$2 ]),
142    [$3],[$4])])
143
144
145 dnl **** Create nonexistent directories from config.status ****
146 dnl
147 dnl Usage: WINE_CONFIG_EXTRA_DIR(dirname)
148 dnl
149 AC_DEFUN([WINE_CONFIG_EXTRA_DIR],
150 [AC_CONFIG_COMMANDS([$1],[test -d "$1" || (AC_MSG_NOTICE([creating $1]) && mkdir "$1")])])