diff --git a/CMakeLists.txt b/CMakeLists.txt
index 61303345..508934dc 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -146,10 +146,12 @@ endif()
 if(WIN32)
   list(APPEND mi_libraries psapi shell32 user32 bcrypt)
 else()
-  list(APPEND mi_libraries pthread)
-  find_library(LIBRT rt)
-  if(LIBRT)
-    list(APPEND mi_libraries ${LIBRT})
+  if(NOT ${CC} MATCHES "android")
+    list(APPEND mi_libraries pthread)
+    find_library(LIBRT rt)
+    if(LIBRT)
+      list(APPEND mi_libraries ${LIBRT})
+    endif()
   endif()
 endif()
 
diff --git a/src/alloc-override.c b/src/alloc-override.c
index c0e7bc2b..569e60ef 100644
--- a/src/alloc-override.c
+++ b/src/alloc-override.c
@@ -165,7 +165,11 @@ extern "C" {
 
 void*  reallocf(void* p, size_t newsize) MI_FORWARD2(mi_reallocf,p,newsize);
 size_t malloc_size(void* p)              MI_FORWARD1(mi_usable_size,p);
+#if !defined(__ANDROID__)
 size_t malloc_usable_size(void *p)       MI_FORWARD1(mi_usable_size,p);
+#else
+size_t malloc_usable_size(const void *p)       MI_FORWARD1(mi_usable_size,p);
+#endif
 void   cfree(void* p)                    MI_FORWARD0(mi_free, p);
 
 // no forwarding here due to aliasing/name mangling issues