diff --git a/api/bmplib.C b/api/bmplib.C
index 69a8e101b2..07ac8208bb 100644
--- a/api/bmplib.C
+++ b/api/bmplib.C
@@ -184,3 +184,9 @@ void DIB_BITMAP::FreeDIB_BMP()
 // Deconstructor
 DIB_BITMAP::~DIB_BITMAP() { FreeDIB_BMP(); }
 	
+
+#ifdef __GNUC__
+static volatile const char  __attribute__((unused)) *BOINCrcsid="$Id$";
+#else
+static volatile const char *BOINCrcsid="$Id$";
+#endif
diff --git a/api/graphics_api.C b/api/graphics_api.C
index 62e2dab810..84ef9845fc 100755
--- a/api/graphics_api.C
+++ b/api/graphics_api.C
@@ -21,3 +21,9 @@ int boinc_init_options_graphics(BOINC_OPTIONS& opt, void (*worker)()) {
     init_main_state();
     return boinc_init_options_graphics_impl(opt, worker, &boinc_main_state);
 }
+
+#ifdef __GNUC__
+static volatile const char  __attribute__((unused)) *BOINCrcsid="$Id$";
+#else
+static volatile const char *BOINCrcsid="$Id$";
+#endif
diff --git a/api/graphics_lib.C b/api/graphics_lib.C
index fd776babb5..4fafdf1e7f 100644
--- a/api/graphics_lib.C
+++ b/api/graphics_lib.C
@@ -153,3 +153,9 @@ no_graphics:
     // never get here...
     return 1;
 }
+
+#ifdef __GNUC__
+static volatile const char  __attribute__((unused)) *BOINCrcsid="$Id$";
+#else
+static volatile const char *BOINCrcsid="$Id$";
+#endif
diff --git a/api/tgalib.C b/api/tgalib.C
index c8d457ca1f..da22501a98 100644
--- a/api/tgalib.C
+++ b/api/tgalib.C
@@ -236,4 +236,9 @@ tImageTGA *LoadTGA(const char *filename)
 
 	// Return the TGA data (remember, you must free this data after you are done)
 	return pImageData;
-}
\ No newline at end of file
+}
+#ifdef __GNUC__
+static volatile const char  __attribute__((unused)) *BOINCrcsid="$Id$";
+#else
+static volatile const char *BOINCrcsid="$Id$";
+#endif
diff --git a/lib/mem_usage.C b/lib/mem_usage.C
index a15474587c..c7e142ced8 100644
--- a/lib/mem_usage.C
+++ b/lib/mem_usage.C
@@ -106,3 +106,9 @@ int mem_usage(double& vm_usage, double& resident_set) {
     return ERR_NOT_IMPLEMENTED;
 #endif
 }
+
+#ifdef __GNUC__
+static volatile const char  __attribute__((unused)) *BOINCrcsid="$Id$";
+#else
+static volatile const char *BOINCrcsid="$Id$";
+#endif