configure: Use -fvisibility=hidden when building with msvcrt and cross compiler is not available.

configure

@@ -19388,6 +19388,34 @@ if test "x$ac_cv_cflags__fshort_wchar" = xyes
 then :
   MSVCRTFLAGS="$MSVCRTFLAGS -fshort-wchar"
 fi
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the compiler supports -fvisibility=hidden" >&5
+printf %s "checking whether the compiler supports -fvisibility=hidden... " >&6; }
+if test ${ac_cv_cflags__fvisibility_hidden+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_wine_try_cflags_saved=$CFLAGS
+CFLAGS="$CFLAGS -fvisibility=hidden"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int main(int argc, char **argv) { return 0; }
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_cflags__fvisibility_hidden=yes
+else $as_nop
+  ac_cv_cflags__fvisibility_hidden=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+CFLAGS=$ac_wine_try_cflags_saved
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_cflags__fvisibility_hidden" >&5
+printf "%s\n" "$ac_cv_cflags__fvisibility_hidden" >&6; }
+if test "x$ac_cv_cflags__fvisibility_hidden" = xyes
+then :
+  MSVCRTFLAGS="$MSVCRTFLAGS -fvisibility=hidden"
+fi
        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the compiler supports -Wno-format" >&5
 printf %s "checking whether the compiler supports -Wno-format... " >&6; }
 if test ${ac_cv_cflags__Wno_format+y}

configure.ac

@@ -1912,6 +1912,7 @@ char*f(const char *h,char n) {return strchr(h,n);}]])],[ac_cv_c_logicalop_noisy=
     *) MSVCRTFLAGS="-D_WIN32"
        WINE_TRY_CFLAGS([-fno-builtin],[MSVCRTFLAGS="$MSVCRTFLAGS -fno-builtin"])
        WINE_TRY_CFLAGS([-fshort-wchar],[MSVCRTFLAGS="$MSVCRTFLAGS -fshort-wchar"])
+       WINE_TRY_CFLAGS([-fvisibility=hidden],[MSVCRTFLAGS="$MSVCRTFLAGS -fvisibility=hidden"])
        WINE_TRY_CFLAGS([-Wno-format],[MSVCRTFLAGS="$MSVCRTFLAGS -Wno-format"]) ;;
   esac