diff -ur gcc-6.4.0/gcc/config/m68k/linux.h gcc-6.4.0.new/gcc/config/m68k/linux.h
--- gcc-6.4.0/gcc/config/m68k/linux.h	2016-01-04 09:30:50.000000000 -0500
+++ gcc-6.4.0.new/gcc/config/m68k/linux.h	2018-06-12 20:03:47.047502695 -0400
@@ -73,6 +73,9 @@
 
 #define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
 
+#undef MUSL_DYNAMIC_LINKER
+#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-m68k.so.1"
+
 #undef LINK_SPEC
 #define LINK_SPEC "-m m68kelf %{shared} \
   %{!shared: \
diff -ur gcc-6.4.0/libgcc/config/m68k/linux-unwind.h gcc-6.4.0.new/libgcc/config/m68k/linux-unwind.h
--- gcc-6.4.0/libgcc/config/m68k/linux-unwind.h	2016-01-04 09:30:50.000000000 -0500
+++ gcc-6.4.0.new/libgcc/config/m68k/linux-unwind.h	2018-06-07 16:17:16.964591108 -0400
@@ -37,7 +37,7 @@
 	stack_t		  uc_stack;
 	mcontext_t	  uc_mcontext;
 	unsigned long	  uc_filler[80];
-	__sigset_t	  uc_sigmask;
+	sigset_t	  uc_sigmask;
 };
 
 #define MD_FALLBACK_FRAME_STATE_FOR m68k_fallback_frame_state