2002-05-20 20:29:58 +02:00
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dnl Macros used to build the Wine configure script
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dnl
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dnl Copyright 2002 Alexandre Julliard
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dnl
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dnl This library is free software; you can redistribute it and/or
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dnl modify it under the terms of the GNU Lesser General Public
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dnl License as published by the Free Software Foundation; either
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dnl version 2.1 of the License, or (at your option) any later version.
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dnl
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dnl This library is distributed in the hope that it will be useful,
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dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
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dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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dnl Lesser General Public License for more details.
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dnl
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dnl You should have received a copy of the GNU Lesser General Public
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dnl License along with this library; if not, write to the Free Software
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dnl Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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dnl
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dnl **** Get the ldd program name; used by WINE_GET_SONAME ****
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dnl
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dnl Usage: WINE_PATH_LDD
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dnl
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AC_DEFUN([WINE_PATH_LDD],[AC_PATH_PROG(LDD,ldd,true,/sbin:/usr/sbin:$PATH)])
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dnl **** Extract the soname of a library ****
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dnl
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dnl Usage: WINE_GET_SONAME(LIBRARY, FUNCTION, [OTHER_LIBRARIES])
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dnl
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AC_DEFUN([WINE_GET_SONAME],
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[AC_REQUIRE([WINE_PATH_LDD])
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AC_CACHE_CHECK([for -l$1 soname], ac_cv_lib_soname_$1,
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[ac_get_soname_save_LIBS=$LIBS
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LIBS="-l$1 $3 $LIBS"
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AC_LINK_IFELSE([AC_LANG_CALL([], [$2])],
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[ac_cv_lib_soname_$1=`$ac_cv_path_LDD conftest$ac_exeext | grep lib$1\\.so | sed 's/^[[ ]]*\([[^ ]]*\)[[ ]]*=>.*$/\1/'`
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if test "x$ac_cv_lib_soname_$1" = "x"
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then
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ac_cv_lib_soname_$1="lib$1.so"
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fi],
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[ac_cv_lib_soname_$1="lib$1.so"])
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LIBS=$ac_get_soname_save_LIBS])
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if test "x$ac_cv_lib_soname_$1" != xNONE
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then AC_DEFINE_UNQUOTED(AS_TR_CPP(SONAME_LIB$1),"$ac_cv_lib_soname_$1",
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[Define to the soname of the lib$1 library.])dnl
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fi])
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dnl **** Check if a structure contains a specified member ****
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dnl
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dnl Usage: WINE_CHECK_STRUCT_MEMBER(struct,member,[includes,[action-if-found,[action-if-not-found]]])
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dnl
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AC_DEFUN([WINE_CHECK_STRUCT_MEMBER],
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[AC_CACHE_CHECK([for $2 in struct $1], ac_cv_c_$1_$2,
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AC_TRY_COMPILE([$3],[struct $1 s; s.$2 = 0],ac_cv_c_$1_$2="yes",ac_cv_c_$1_$2="no"))
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AS_IF([ test "x$ac_cv_c_$1_$2" = "xyes"],[$4],[$5])
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])
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dnl **** Check for reentrant libc ****
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dnl
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dnl Usage: WINE_CHECK_ERRNO(errno-name,[action-if-yes,[action-if-no]])
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dnl
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dnl For cross-compiling we blindly assume that libc is reentrant. This is
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dnl ok since non-reentrant libc is quite rare (mostly old libc5 versions).
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dnl
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AC_DEFUN([WINE_CHECK_ERRNO],
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[AC_CACHE_CHECK([for reentrant libc: $1],[wine_cv_libc_r_$1],
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[AC_TRY_RUN([int myerrno = 0;
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char buf[256];
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int *$1(){return &myerrno;}
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main(){connect(0,buf,255); exit(!myerrno);}],
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wine_cv_libc_r_$1=yes, wine_cv_libc_r_$1=no,
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wine_cv_libc_r_$1=yes)])
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AS_IF([test "$wine_cv_libc_r_$1" = "yes"],[$2],[$3])])
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dnl **** Link C code with an assembly file ****
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dnl
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dnl Usage: WINE_TRY_ASM_LINK(asm-code,includes,function,[action-if-found,[action-if-not-found]])
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dnl
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AC_DEFUN([WINE_TRY_ASM_LINK],
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[ac_try_asm_link_saved_libs=$LIBS
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LIBS="conftest_asm.s $LIBS"
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cat > conftest_asm.s <<EOF
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$1
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EOF
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AC_TRY_LINK([$2],[$3],[$4],[$5])
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rm -f conftest_asm.s
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LIBS=$ac_try_asm_link_saved_libs])
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dnl **** Check if we can link an empty program with special CFLAGS ****
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dnl
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dnl Usage: WINE_TRY_CFLAGS(flags,[action-if-yes,[action-if-no]])
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dnl
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AC_DEFUN([WINE_TRY_CFLAGS],
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[ac_wine_try_cflags_saved=$CFLAGS
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CFLAGS="$CFLAGS $1"
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AC_TRY_LINK([],[],[$2],[$3])
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CFLAGS=$ac_wine_try_cflags_saved])
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2002-05-22 04:10:39 +02:00
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dnl **** Check for ln ****
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dnl
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dnl Usage: WINE_PROG_LN
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dnl
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AC_DEFUN([WINE_PROG_LN],
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[AC_MSG_CHECKING([whether ln works])
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rm -f conf$$ conf$$.file
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echo >conf$$.file
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if ln conf$$.file conf$$ 2>/dev/null; then
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AC_SUBST(LN,ln)
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AC_MSG_RESULT([yes])
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else
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AC_SUBST(LN,["cp -p"])
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AC_MSG_RESULT([no, using $LN])
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fi
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rm -f conf$$ conf$$.file])
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2002-05-20 20:29:58 +02:00
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dnl **** Create non-existent directories from config.status ****
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dnl
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dnl Usage: WINE_CONFIG_EXTRA_DIR(dirname)
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dnl
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AC_DEFUN([WINE_CONFIG_EXTRA_DIR],
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[AC_CONFIG_COMMANDS([$1],[test -d "$1" || (AC_MSG_NOTICE([creating $1]) && mkdir "$1")])])
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