diff --git a/src/libCom/misc/cantProceed.h b/src/libCom/misc/cantProceed.h
index d23f1b018..5004f15bb 100644
--- a/src/libCom/misc/cantProceed.h
+++ b/src/libCom/misc/cantProceed.h
@@ -12,15 +12,16 @@
 
 #include <stdlib.h>
 
+#include "shareLib.h"
+
 #ifdef __cplusplus
 extern "C" {
 #endif
 
-#include "shareLib.h"
-
 epicsShareFunc void epicsShareAPI cantProceed(const char *errorMessage);
 epicsShareFunc void * epicsShareAPI callocMustSucceed(size_t count, size_t size, const char *errorMessage);
 epicsShareFunc void * epicsShareAPI mallocMustSucceed(size_t size, const char *errorMessage);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/src/libCom/osi/epicsAssert.h b/src/libCom/osi/epicsAssert.h
index 0b048a248..7f5e0adf1 100644
--- a/src/libCom/osi/epicsAssert.h
+++ b/src/libCom/osi/epicsAssert.h
@@ -18,12 +18,12 @@
 #ifndef assertEPICS 
 #define assertEPICS 
 
+#include "shareLib.h"
+
 #ifdef __cplusplus
 extern "C" {
 #endif
 
-#include "shareLib.h"
-
 #undef assert
 
 #ifndef epicsAssertAuthor
diff --git a/src/libCom/osi/epicsThread.h b/src/libCom/osi/epicsThread.h
index 36c428a7b..f5975a7c4 100644
--- a/src/libCom/osi/epicsThread.h
+++ b/src/libCom/osi/epicsThread.h
@@ -10,14 +10,14 @@
 #ifndef epicsThreadh
 #define epicsThreadh
 
-#ifdef __cplusplus
-extern "C" {
-#endif
-
 #include <stddef.h>
 
 #include "shareLib.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 typedef void (*EPICSTHREADFUNC)(void *parm);
 
 static const unsigned epicsThreadPriorityMax = 99;