1 dnl Macros used to build the Wine configure script
3 dnl Copyright 2002 Alexandre Julliard
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.
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.
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 dnl **** Get the ldd program name; used by WINE_GET_SONAME ****
22 dnl Usage: WINE_PATH_LDD
24 AC_DEFUN([WINE_PATH_LDD],[AC_PATH_PROG(LDD,ldd,true,/sbin:/usr/sbin:$PATH)])
26 dnl **** Extract the soname of a library ****
28 dnl Usage: WINE_GET_SONAME(LIBRARY, FUNCTION, [OTHER_LIBRARIES])
30 AC_DEFUN([WINE_GET_SONAME],
31 [AC_REQUIRE([WINE_PATH_LDD])
32 AC_CACHE_CHECK([for -l$1 soname], ac_cv_lib_soname_$1,
33 [ac_get_soname_save_LIBS=$LIBS
35 AC_LINK_IFELSE([AC_LANG_CALL([], [$2])],
36 [ac_cv_lib_soname_$1=`$ac_cv_path_LDD conftest$ac_exeext | grep lib$1\\.so | sed 's/^[[ ]]*\([[^ ]]*\)[[ ]]*=>.*$/\1/'`
37 if test "x$ac_cv_lib_soname_$1" = "x"
39 ac_cv_lib_soname_$1="lib$1.so"
41 [ac_cv_lib_soname_$1="lib$1.so"])
42 LIBS=$ac_get_soname_save_LIBS])
43 if test "x$ac_cv_lib_soname_$1" != xNONE
44 then AC_DEFINE_UNQUOTED(AS_TR_CPP(SONAME_LIB$1),"$ac_cv_lib_soname_$1",
45 [Define to the soname of the lib$1 library.])dnl
48 dnl **** Check if a structure contains a specified member ****
50 dnl Usage: WINE_CHECK_STRUCT_MEMBER(struct,member,[includes,[action-if-found,[action-if-not-found]]])
52 AC_DEFUN([WINE_CHECK_STRUCT_MEMBER],
53 [AC_CACHE_CHECK([for $2 in struct $1], ac_cv_c_$1_$2,
54 AC_TRY_COMPILE([$3],[struct $1 s; s.$2 = 0],ac_cv_c_$1_$2="yes",ac_cv_c_$1_$2="no"))
55 AS_IF([ test "x$ac_cv_c_$1_$2" = "xyes"],[$4],[$5])
58 dnl **** Check for reentrant libc ****
60 dnl Usage: WINE_CHECK_ERRNO(errno-name,[action-if-yes,[action-if-no]])
62 dnl For cross-compiling we blindly assume that libc is reentrant. This is
63 dnl ok since non-reentrant libc is quite rare (mostly old libc5 versions).
65 AC_DEFUN([WINE_CHECK_ERRNO],
66 [AC_CACHE_CHECK([for reentrant libc: $1],[wine_cv_libc_r_$1],
67 [AC_TRY_RUN([int myerrno = 0;
69 int *$1(){return &myerrno;}
70 main(){connect(0,buf,255); exit(!myerrno);}],
71 wine_cv_libc_r_$1=yes, wine_cv_libc_r_$1=no,
72 wine_cv_libc_r_$1=yes)])
73 AS_IF([test "$wine_cv_libc_r_$1" = "yes"],[$2],[$3])])
75 dnl **** Link C code with an assembly file ****
77 dnl Usage: WINE_TRY_ASM_LINK(asm-code,includes,function,[action-if-found,[action-if-not-found]])
79 AC_DEFUN([WINE_TRY_ASM_LINK],
80 [ac_try_asm_link_saved_libs=$LIBS
81 LIBS="conftest_asm.s $LIBS"
82 cat > conftest_asm.s <<EOF
85 AC_TRY_LINK([$2],[$3],[$4],[$5])
87 LIBS=$ac_try_asm_link_saved_libs])
89 dnl **** Check if we can link an empty program with special CFLAGS ****
91 dnl Usage: WINE_TRY_CFLAGS(flags,[action-if-yes,[action-if-no]])
93 AC_DEFUN([WINE_TRY_CFLAGS],
94 [ac_wine_try_cflags_saved=$CFLAGS
96 AC_TRY_LINK([],[],[$2],[$3])
97 CFLAGS=$ac_wine_try_cflags_saved])
99 dnl **** Create non-existent directories from config.status ****
101 dnl Usage: WINE_CONFIG_EXTRA_DIR(dirname)
103 AC_DEFUN([WINE_CONFIG_EXTRA_DIR],
104 [AC_CONFIG_COMMANDS([$1],[test -d "$1" || (AC_MSG_NOTICE([creating $1]) && mkdir "$1")])])