diff --git a/require.h b/require.h
index 59d89b0..fabd0e1 100644
--- a/require.h
+++ b/require.h
@@ -1,6 +1,8 @@
 #ifndef require_h
 #define require_h
 
+#include <shareLib.h>
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -9,14 +11,14 @@ extern "C" {
 #define __attribute__(dummy)
 #endif
 
-int require(const char* libname, const char* version, const char* args);
-size_t foreachLoadedLib(size_t (*func)(const char* name, const char* version, const char* path, void* arg), void* arg);
-const char* getLibVersion(const char* libname);
-const char* getLibLocation(const char* libname);
-int libversionShow(const char* outfile);
-int runScript(const char* filename, const char* args);
-int putenvprintf(const char* format, ...) __attribute__((__format__(__printf__,1,2)));
-void pathAdd(const char* varname, const char* dirname);
+epicsShareFunc int require(const char* libname, const char* version, const char* args);
+epicsShareFunc size_t foreachLoadedLib(size_t (*func)(const char* name, const char* version, const char* path, void* arg), void* arg);
+epicsShareFunc const char* getLibVersion(const char* libname);
+epicsShareFunc const char* getLibLocation(const char* libname);
+epicsShareFunc int libversionShow(const char* outfile);
+epicsShareFunc int runScript(const char* filename, const char* args);
+epicsShareFunc int putenvprintf(const char* format, ...) __attribute__((__format__(__printf__,1,2)));
+epicsShareFunc void pathAdd(const char* varname, const char* dirname);
 
 #ifdef __cplusplus
 }