[PATCH 1/1] configure: On macOS, build the loader targeting 10.7 when preloader is used.

[Brendan Shanks]

From: Brendan Shanks

Building the loader targeting 10.7 (to generate an LC_UNIXTHREAD binary)
seems to fix an issue in the Mac driver with 10.13 and earlier where
window layers wouldn't update correctly.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=52354
---
 configure.ac | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/configure.ac b/configure.ac
index 1d0ae5c3fc2..4c0aaaa9371 100644
--- a/configure.ac
+++ b/configure.ac
@@ -711,6 +711,8 @@ case $host_os in
                         [WINEPRELOADER_LDFLAGS="-Wl,-no_pie $WINEPRELOADER_LDFLAGS"])
         test "$wine_binary" = wine || WINE_IGNORE_FILE(loader/wine-preloader)
         WINELOADER_PROGRAMS="$WINELOADER_PROGRAMS $wine_binary-preloader"
+        dnl If preloader is used, the loader needs to be an LC_UNIXTHREAD binary to avoid AppKit/Core Animation problems.
+        WINELOADER_LDFLAGS="$WINELOADER_LDFLAGS -mmacosx-version-min=10.7"
     else
         WINE_WARNING([can't build Wine preloader; many programs won't work])
     fi