Support Android API level 21

(fix 'link_map redefinition' error on Android with API level 21+)

* dyn_load.c (link_map, r_debug): Do not define if android-21 (or
higher) API is used; update comment.

diff --git a/dyn_load.c b/dyn_load.c
index 3b9071856c58c8d634ccabfd3fe61dff66c6a865..326bd2de2d1b39b6f4869607080b77883e9b3fd7 100644 (file)
--- a/dyn_load.c
+++ b/dyn_load.c
@@ -109,9 +109,9 @@ STATIC GC_has_static_roots_func GC_has_static_roots = 0;
 #     undef EM_ALPHA
 #   endif
 #   include <link.h>
-#   if !defined(GC_DONT_DEFINE_LINK_MAP)
-      /* link_map and r_debug should be defined explicitly,             */
-      /* as only bionic/linker/linker.h defines them but the header     */
+#   if !defined(GC_DONT_DEFINE_LINK_MAP) && !(__ANDROID_API__ >= 21)
+      /* link_map and r_debug are defined in link.h of NDK r10+.        */
+      /* bionic/linker/linker.h defines them too but the header         */
       /* itself is a C++ one starting from Android 4.3.                 */
       struct link_map {
         uintptr_t l_addr;