libs/rem: fix build with musl

Signed-off-by: Daniel Golle <[email protected]>

diff --git a/libs/rem/patches/100-no-pthread_rwlockattr_setkind_np-on-musl.patch b/libs/rem/patches/100-no-pthread_rwlockattr_setkind_np-on-musl.patch
new file mode 100644 (file)
index 0000000..43e6d32
--- /dev/null
+++ b/libs/rem/patches/100-no-pthread_rwlockattr_setkind_np-on-musl.patch
@@ -0,0 +1,13 @@
+Index: rem-0.4.6/src/vidmix/vidmix.c
+===================================================================
+--- rem-0.4.6.orig/src/vidmix/vidmix.c
++++ rem-0.4.6/src/vidmix/vidmix.c
+@@ -343,7 +343,7 @@ int vidmix_alloc(struct vidmix **mixp)
+               return err;
+       }
+ 
+-#ifdef LINUX
++#if defined(LINUX) && defined(__GLIBC__)
+       err = pthread_rwlockattr_setkind_np(&attr,
+                                PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP);
+       if (err)