1 files changed, 10 insertions, 6 deletions
diff --git a/Makefile b/Makefile
index 86efee9a..c2fb53d5 100644
--- a/Makefile
+++ b/Makefile
@@ -173,12 +173,16 @@ ifndef USE_FREETYPE
 USE_FREETYPE=0
 endif
 
+ifndef USE_INTERNAL_LIBS
+USE_INTERNAL_LIBS=1
+endif
+
 ifndef USE_INTERNAL_SPEEX
-USE_INTERNAL_SPEEX=1
+USE_INTERNAL_SPEEX=$(USE_INTERNAL_LIBS)
 endif
 
 ifndef USE_INTERNAL_OGG
-USE_INTERNAL_OGG=1
+USE_INTERNAL_OGG=$(USE_INTERNAL_LIBS)
 endif
 
 ifndef USE_INTERNAL_VORBIS
@@ -186,19 +190,19 @@ USE_INTERNAL_VORBIS=1
 endif
 
 ifndef USE_INTERNAL_OPUS
-USE_INTERNAL_OPUS=1
+USE_INTERNAL_OPUS=$(USE_INTERNAL_LIBS)
 endif
 
 ifndef USE_INTERNAL_ZLIB
-USE_INTERNAL_ZLIB=1
+USE_INTERNAL_ZLIB=$(USE_INTERNAL_LIBS)
 endif
 
 ifndef USE_INTERNAL_JPEG
-USE_INTERNAL_JPEG=1
+USE_INTERNAL_JPEG=$(USE_INTERNAL_LIBS)
 endif
 
 ifndef USE_LOCAL_HEADERS
-USE_LOCAL_HEADERS=1
+USE_LOCAL_HEADERS=$(USE_INTERNAL_LIBS)
 endif
 
 ifndef BUILD_MASTER_SERVER