| dnl Macros used to build the Wine configure script |
| dnl |
| dnl Copyright 2002 Alexandre Julliard |
| dnl |
| dnl This library is free software; you can redistribute it and/or |
| dnl modify it under the terms of the GNU Lesser General Public |
| dnl License as published by the Free Software Foundation; either |
| dnl version 2.1 of the License, or (at your option) any later version. |
| dnl |
| dnl This library is distributed in the hope that it will be useful, |
| dnl but WITHOUT ANY WARRANTY; without even the implied warranty of |
| dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| dnl Lesser General Public License for more details. |
| dnl |
| dnl You should have received a copy of the GNU Lesser General Public |
| dnl License along with this library; if not, write to the Free Software |
| dnl Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| dnl |
| |
| dnl **** Get the ldd program name; used by WINE_GET_SONAME **** |
| dnl |
| dnl Usage: WINE_PATH_LDD |
| dnl |
| AC_DEFUN([WINE_PATH_LDD],[AC_PATH_PROG(LDD,ldd,true,/sbin:/usr/sbin:$PATH)]) |
| |
| dnl **** Extract the soname of a library **** |
| dnl |
| dnl Usage: WINE_GET_SONAME(LIBRARY, FUNCTION, [OTHER_LIBRARIES]) |
| dnl |
| AC_DEFUN([WINE_GET_SONAME], |
| [AC_REQUIRE([WINE_PATH_LDD]) |
| AC_CACHE_CHECK([for -l$1 soname], ac_cv_lib_soname_$1, |
| [ac_get_soname_save_LIBS=$LIBS |
| LIBS="-l$1 $3 $LIBS" |
| AC_LINK_IFELSE([AC_LANG_CALL([], [$2])], |
| [ac_cv_lib_soname_$1=`$ac_cv_path_LDD conftest$ac_exeext | grep lib$1\\.so | sed 's/^[[ ]]*\([[^ ]]*\)[[ ]]*=>.*$/\1/'` |
| if test "x$ac_cv_lib_soname_$1" = "x" |
| then |
| ac_cv_lib_soname_$1="lib$1.so" |
| fi], |
| [ac_cv_lib_soname_$1="lib$1.so"]) |
| LIBS=$ac_get_soname_save_LIBS]) |
| if test "x$ac_cv_lib_soname_$1" != xNONE |
| then AC_DEFINE_UNQUOTED(AS_TR_CPP(SONAME_LIB$1),"$ac_cv_lib_soname_$1", |
| [Define to the soname of the lib$1 library.])dnl |
| fi]) |
| |
| dnl **** Check if a structure contains a specified member **** |
| dnl |
| dnl Usage: WINE_CHECK_STRUCT_MEMBER(struct,member,[includes,[action-if-found,[action-if-not-found]]]) |
| dnl |
| AC_DEFUN([WINE_CHECK_STRUCT_MEMBER], |
| [AC_CACHE_CHECK([for $2 in struct $1], ac_cv_c_$1_$2, |
| AC_TRY_COMPILE([$3],[struct $1 s; s.$2 = 0],ac_cv_c_$1_$2="yes",ac_cv_c_$1_$2="no")) |
| AS_IF([ test "x$ac_cv_c_$1_$2" = "xyes"],[$4],[$5]) |
| ]) |
| |
| dnl **** Check for reentrant libc **** |
| dnl |
| dnl Usage: WINE_CHECK_ERRNO(errno-name,[action-if-yes,[action-if-no]]) |
| dnl |
| dnl For cross-compiling we blindly assume that libc is reentrant. This is |
| dnl ok since non-reentrant libc is quite rare (mostly old libc5 versions). |
| dnl |
| AC_DEFUN([WINE_CHECK_ERRNO], |
| [AC_CACHE_CHECK([for reentrant libc: $1],[wine_cv_libc_r_$1], |
| [AC_TRY_RUN([int myerrno = 0; |
| int *$1(){return &myerrno;} |
| main(){close(333); close(333); exit(!myerrno);}], |
| wine_cv_libc_r_$1=yes, wine_cv_libc_r_$1=no, |
| wine_cv_libc_r_$1=yes)]) |
| AS_IF([test "$wine_cv_libc_r_$1" = "yes"],[$2],[$3])]) |
| |
| dnl **** Link C code with an assembly file **** |
| dnl |
| dnl Usage: WINE_TRY_ASM_LINK(asm-code,includes,function,[action-if-found,[action-if-not-found]]) |
| dnl |
| AC_DEFUN([WINE_TRY_ASM_LINK], |
| [AC_TRY_LINK([static void ac_asm(void) { asm([$1]); } |
| [$2]],[$3],[$4],[$5])]) |
| |
| dnl **** Check if we can link an empty program with special CFLAGS **** |
| dnl |
| dnl Usage: WINE_TRY_CFLAGS(flags,[action-if-yes,[action-if-no]]) |
| dnl |
| AC_DEFUN([WINE_TRY_CFLAGS], |
| [ac_wine_try_cflags_saved=$CFLAGS |
| CFLAGS="$CFLAGS $1" |
| AC_TRY_LINK([],[],[$2],[$3]) |
| CFLAGS=$ac_wine_try_cflags_saved]) |
| |
| dnl **** Check for ln **** |
| dnl |
| dnl Usage: WINE_PROG_LN |
| dnl |
| AC_DEFUN([WINE_PROG_LN], |
| [AC_MSG_CHECKING([whether ln works]) |
| rm -f conf$$ conf$$.file |
| echo >conf$$.file |
| if ln conf$$.file conf$$ 2>/dev/null; then |
| AC_SUBST(LN,ln) |
| AC_MSG_RESULT([yes]) |
| else |
| AC_SUBST(LN,["cp -p"]) |
| AC_MSG_RESULT([no, using $LN]) |
| fi |
| rm -f conf$$ conf$$.file]) |
| |
| dnl **** Create non-existent directories from config.status **** |
| dnl |
| dnl Usage: WINE_CONFIG_EXTRA_DIR(dirname) |
| dnl |
| AC_DEFUN([WINE_CONFIG_EXTRA_DIR], |
| [AC_CONFIG_COMMANDS([$1],[test -d "$1" || (AC_MSG_NOTICE([creating $1]) && mkdir "$1")])]) |
