commit 7f03c58cbf63a63bb5a105e06f9f675bf60adfc7
Author:     Simon Howard <fraggle@soulsphere.org>
AuthorDate: Sat Oct 27 16:31:44 2018 -0400
Commit:     Simon Howard <fraggle@soulsphere.org>
CommitDate: Sat Oct 27 16:31:44 2018 -0400

    music: Add argument to disable substitute music.

    This mirrors the -nomusic command line argument by just disabling the
    substitute music.
---
 src/i_sound.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/src/i_sound.c b/src/i_sound.c
index 06e4388b..468b2da7 100644
--- a/src/i_sound.c
+++ b/src/i_sound.c
@@ -195,7 +195,7 @@ static void InitMusicModule(void)

 void I_InitSound(boolean use_sfx_prefix)
 {
-    boolean nosound, nosfx, nomusic;
+    boolean nosound, nosfx, nomusic, nomusicpacks;

     //!
     // @vanilla
@@ -221,6 +221,13 @@ void I_InitSound(boolean use_sfx_prefix)

     nomusic = M_CheckParm("-nomusic") > 0;

+    //!
+    //
+    // Disable substitution music packs.
+    //
+
+    nomusicpacks = M_ParmExists("-nomusicpacks");
+
     // Auto configure the music pack directory.
     M_SetMusicPackDir();

@@ -251,7 +258,7 @@ void I_InitSound(boolean use_sfx_prefix)
         }

         // We may also have substitute MIDIs we can load.
-        if (music_module != NULL)
+        if (!nomusicpacks && music_module != NULL)
         {
             music_packs_active = music_pack_module.Init();
         }