Fixes:

libtool:   error: ignoring unknown tag OBJCXX
--- platform/unix/genmodules.orig	2024-05-06 23:34:07.000000000 -0500
+++ platform/unix/genmodules	2024-05-06 23:34:07.000000000 -0500
@@ -133,7 +133,7 @@
 love${love_amsuffix}_SOURCES = love.cpp
 
 if LOVE_TARGET_OSX
-love${love_amsuffix}_LIBTOOLFLAGS = --tag=OBJCXX
+love${love_amsuffix}_LIBTOOLFLAGS = --tag=CXX
 love${love_amsuffix}_SOURCES += \\
     ./common/macosx.mm
 else
