diff --git a/js/src/jslibmath.h b/js/src/jslibmath.h
index b1645414ead..d2c99fe506f 100644
--- a/js/src/jslibmath.h
+++ b/js/src/jslibmath.h
@@ -26,6 +26,9 @@
 
 #include <math.h>
 #include "jsconfig.h"
+#ifdef MOZILLA_CLIENT
+#include "platform.h"
+#endif
 
 /*
  * Define which platforms on which to use fdlibm.  Not used
diff --git a/js/src/jsosdep.h b/js/src/jsosdep.h
index 787b36d3fb9..dddafbc1bd1 100644
--- a/js/src/jsosdep.h
+++ b/js/src/jsosdep.h
@@ -22,6 +22,10 @@
  * OS (and machine, and compiler XXX) dependent information.
  */
 
+#ifdef MOZILLA_CLIENT
+#include "platform.h"
+#endif
+
 #ifdef XP_PC
 
 #ifdef _WIN32
diff --git a/js/src/prmjtime.c b/js/src/prmjtime.c
index 4dc652ada38..1781efc4f62 100644
--- a/js/src/prmjtime.c
+++ b/js/src/prmjtime.c
@@ -19,6 +19,9 @@
 /*
  * PR time code.
  */
+#ifdef MOZILLA_CLIENT
+#include "platform.h"
+#endif
 #ifdef SOLARIS
 #define _REENTRANT 1
 #endif