aclocal.m4: Avoid invalid characters in the cache variable name in WINE_GET_SONAME.

aclocal.m4

@@ -33,22 +33,22 @@ 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_REQUIRE([WINE_PATH_LDD])dnl
+AS_VAR_PUSHDEF([ac_Lib],[ac_cv_lib_soname_$1])dnl
+AC_CACHE_CHECK([for -l$1 soname], ac_Lib,
 [ac_get_soname_save_LIBS=$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$1\\.$LIBEXT | sed -e "s/^.*\(lib$1\.$LIBEXT[[^	 ]]*\).*$/\1/"';2,$d'`
-  if test "x$ac_cv_lib_soname_$1" = "x"
+  [AS_VAR_SET(ac_Lib,[`$ac_cv_path_LDD conftest$ac_exeext | grep lib$1\\.$LIBEXT | sed -e "s/^.*\(lib$1\.$LIBEXT[[^	 ]]*\).*$/\1/"';2,$d'`])
+  if test "x$ac_Lib" = "x"
   then
-     ac_cv_lib_soname_$1="lib$1.$LIBEXT"
+     AS_VAR_SET(ac_Lib,"lib$1.$LIBEXT")
   fi],
-  [ac_cv_lib_soname_$1="lib$1.$LIBEXT"])
+  [AS_VAR_SET(ac_Lib,"lib$1.$LIBEXT")])
   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])
+AS_VAR_SET_IF(ac_Lib,[AC_DEFINE_UNQUOTED(AS_TR_CPP(SONAME_LIB$1),["]AS_VAR_GET(ac_Lib)["],
+                        [Define to the soname of the lib$1 library.])])dnl
+AS_VAR_POPDEF([ac_Lib])])
 
 dnl **** Link C code with an assembly file ****
 dnl