--- a/src/OpenThreads/pthreads/PThread.cpp
+++ b/src/OpenThreads/pthreads/PThread.cpp
@@ -23,7 +23,7 @@
 #include <pthread.h>
 #include <limits.h>
 
-#if defined __linux__ || defined __sun || defined __APPLE__ || ANDROID
+#if defined __GLIBC__ || defined __sun || defined __APPLE__ || ANDROID
 #include <string.h>
 #include <sys/time.h>
 #include <sys/resource.h>
--- a/src/osgPlugins/osc/osc/OscHostEndianness.h
+++ b/src/osgPlugins/osc/osc/OscHostEndianness.h
@@ -51,7 +51,7 @@
 
 #else
 
-    #if defined(__GLIBC__) || defined(__ANDROID__) || defined(__CYGWIN__)
+    #if defined(__linux__) || defined(__ANDROID__) || defined(__CYGWIN__)
         #include <endian.h>
         #if (__BYTE_ORDER == __LITTLE_ENDIAN)
             #ifndef __LITTLE_ENDIAN__