Fix build on latest FreeBSD stable (12.2).

gfx/harfbuzz/src/hb-blob.cc

@@ -24,10 +24,12 @@
  * Red Hat Author(s): Behdad Esfahbod
  */
 
+#ifndef __FreeBSD__
 /* http://www.oracle.com/technetwork/articles/servers-storage-dev/standardheaderfiles-453865.html */
 #ifndef _POSIX_C_SOURCE
 #define _POSIX_C_SOURCE 199309L
 #endif
+#endif
 
 #include "hb-private.hh"
 

memory/mozjemalloc/jemalloc.c

@@ -5267,7 +5267,7 @@ malloc_init_hard(void)
 		 * Another thread initialized the allocator before this one
 		 * acquired init_lock.
 		 */
-#ifndef MOZ_MEMORY_WINDOWS
+#if !(defined(MOZ_MEMORY_WINDOWS) || defined(__FreeBSD__))
 		malloc_mutex_unlock(&init_lock);
 #endif
 		return (false);
@@ -6771,7 +6771,8 @@ jemalloc_darwin_init(void)
 #define is_malloc_(a) malloc_is_ ## a
 #define is_malloc(a) is_malloc_(a)
 
-#if !defined(MOZ_MEMORY_DARWIN) && (is_malloc(malloc_impl) == 1)
+#if !(defined(MOZ_MEMORY_DARWIN) || defined(MOZ_MEMORY_BSD)) && \
+	(is_malloc(malloc_impl) == 1)
 #  if defined(__GLIBC__) && !defined(__UCLIBC__)
 /*
  * glibc provides the RTLD_DEEPBIND flag for dlopen which can make it possible