Index: src/libcfa/stdhdr/gmp.h
===================================================================
--- src/libcfa/stdhdr/gmp.h	(revision 91c389a0cc77a9170087b8d43a7c6448d605c377)
+++ src/libcfa/stdhdr/gmp.h	(revision b2551cebe2dbe7cff92ccba2da8550b8744aa3e2)
@@ -11,10 +11,10 @@
 // Created On       : Sun May 14 23:46:01 2017
 // Last Modified By : Peter A. Buhr
-// Last Modified On : Sun May 14 23:46:34 2017
-// Update Count     : 1
+// Last Modified On : Thu Jul 20 15:08:05 2017
+// Update Count     : 2
 // 
 
 extern "C" {
-#include_next <gmp.h>									// has internal check for multiple expansion
+#include_next <gmp.h>					// has internal check for multiple expansion
 } // extern "C"
 
Index: src/libcfa/stdlib
===================================================================
--- src/libcfa/stdlib	(revision 91c389a0cc77a9170087b8d43a7c6448d605c377)
+++ src/libcfa/stdlib	(revision b2551cebe2dbe7cff92ccba2da8550b8744aa3e2)
@@ -10,6 +10,6 @@
 // Created On       : Thu Jan 28 17:12:35 2016
 // Last Modified By : Peter A. Buhr
-// Last Modified On : Fri Jul  7 09:34:49 2017
-// Update Count     : 219
+// Last Modified On : Thu Jul 20 14:32:37 2017
+// Update Count     : 220
 //
 
@@ -18,10 +18,8 @@
 //---------------------------------------
 
-extern "C" {
 #ifndef EXIT_FAILURE
 #define	EXIT_FAILURE	1								// failing exit status
 #define	EXIT_SUCCESS	0								// successful exit status
 #endif // ! EXIT_FAILURE
-} // extern "C"
 
 //---------------------------------------
Index: src/libcfa/stdlib.c
===================================================================
--- src/libcfa/stdlib.c	(revision 91c389a0cc77a9170087b8d43a7c6448d605c377)
+++ src/libcfa/stdlib.c	(revision b2551cebe2dbe7cff92ccba2da8550b8744aa3e2)
@@ -10,6 +10,6 @@
 // Created On       : Thu Jan 28 17:10:29 2016
 // Last Modified By : Peter A. Buhr
-// Last Modified On : Thu Jun  1 21:52:57 2017
-// Update Count     : 280
+// Last Modified On : Thu Jul 20 16:01:40 2017
+// Update Count     : 282
 //
 
@@ -18,5 +18,4 @@
 //---------------------------------------
 
-extern "C" {
 #define _XOPEN_SOURCE 600								// posix_memalign, *rand48
 #include <stdlib.h>										// malloc, free, calloc, realloc, memalign, posix_memalign, bsearch
@@ -25,5 +24,4 @@
 #include <math.h>										// fabsf, fabs, fabsl
 #include <complex.h>									// _Complex_I
-} // extern "C"
 
 // resize, non-array types