benchmarks: time{catalan,euler,exp1,zeta3}.cc actually compile and work now.

These benchmarks use internal CLN functions. Even worse -- they expect to
find these functions in the global namespace. Declare internal CLN functions
in the namespace cln.

tests/timecatalan.cc

@@ -8,6 +8,18 @@
 #include <cln/timing.h>
 #include "float/lfloat/cl_LF.h"
 #include <iostream>
+namespace cln
+{
+// FIXME: using internal functions is a bad idea (even if it works
+// on some ELF systems)
+extern cl_LF compute_catalanconst_ramanujan (uintC len);
+extern cl_LF compute_catalanconst_ramanujan_fast (uintC len);
+extern cl_LF compute_catalanconst_expintegral1 (uintC len);
+extern cl_LF compute_catalanconst_expintegral2 (uintC len);
+extern cl_LF compute_catalanconst_cvz1 (uintC len);
+extern cl_LF compute_catalanconst_cvz2 (uintC len);
+}
+
 using namespace cln;
 using namespace std;
 
@@ -21,12 +33,8 @@ int main (int argc, char * argv[])
 	if (argc < 2)
 		exit(1);
 	uintL len = atoi(argv[1]);
-	extern cl_LF compute_catalanconst_ramanujan (uintC len);
-	extern cl_LF compute_catalanconst_ramanujan_fast (uintC len);
-	extern cl_LF compute_catalanconst_expintegral1 (uintC len);
-	extern cl_LF compute_catalanconst_expintegral2 (uintC len);
-	extern cl_LF compute_catalanconst_cvz1 (uintC len);
-	extern cl_LF compute_catalanconst_cvz2 (uintC len);
+
+
 	cl_LF p;
 	ln(cl_I_to_LF(1000,len+10)); // fill cache
 	{ CL_TIMING;

tests/timeeuler.cc

@@ -7,6 +7,19 @@
 #include <cstring>
 #include <cln/timing.h>
 #include "float/lfloat/cl_LF.h"
+namespace cln
+{
+// FIXME: don't use internal functions.
+extern cl_LF compute_eulerconst (uintC len);
+extern cl_LF compute_eulerconst_expintegral (uintC len);
+extern cl_LF compute_eulerconst_expintegral1 (uintC len);
+extern cl_LF compute_eulerconst_expintegral2 (uintC len);
+extern cl_LF compute_eulerconst_besselintegral1 (uintC len);
+extern cl_LF compute_eulerconst_besselintegral2 (uintC len);
+extern cl_LF compute_eulerconst_besselintegral3 (uintC len);
+extern cl_LF compute_eulerconst_besselintegral4 (uintC len);
+}
+
 using namespace cln;
 
 int main (int argc, char * argv[])
@@ -19,14 +32,8 @@ int main (int argc, char * argv[])
 	if (argc < 2)
 		exit(1);
 	uintL len = atoi(argv[1]);
-	extern cl_LF compute_eulerconst (uintC len);
-	extern cl_LF compute_eulerconst_expintegral (uintC len);
-	extern cl_LF compute_eulerconst_expintegral1 (uintC len);
-	extern cl_LF compute_eulerconst_expintegral2 (uintC len);
-	extern cl_LF compute_eulerconst_besselintegral1 (uintC len);
-	extern cl_LF compute_eulerconst_besselintegral2 (uintC len);
-	extern cl_LF compute_eulerconst_besselintegral3 (uintC len);
-	extern cl_LF compute_eulerconst_besselintegral4 (uintC len);
+
+
 	cl_LF p;
 	ln(cl_I_to_LF(1000,len+10)); // fill cache
 #if 0

tests/timeexp1.cc

@@ -6,6 +6,12 @@
 #include <cstdlib>
 #include <cstring>
 #include <cln/timing.h>
+namespace cln
+{
+// FIXME: don't use internal functions!
+extern cl_LF compute_exp1 (uintC len);
+}
+
 using namespace cln;
 
 int main (int argc, char * argv[])
@@ -18,7 +24,6 @@ int main (int argc, char * argv[])
 	if (argc < 2)
 		exit(1);
 	uintL len = atoi(argv[1]);
-	extern cl_LF compute_exp1 (uintC len);
 	cl_LF p;
 	{ CL_TIMING;
 	  for (int rep = repetitions; rep > 0; rep--)

tests/timezeta3.cc

@@ -6,6 +6,15 @@
 #include <cstring>
 #include <cln/timing.h>
 #include "float/lfloat/cl_LF.h"
+namespace cln
+{
+// FIXME: don't use internal functions.
+extern cl_LF zeta (int s, uintC len);
+extern cl_LF compute_zeta_exp (int s, uintC len);
+extern cl_LF compute_zeta_cvz1 (int s, uintC len);
+extern cl_LF compute_zeta_cvz2 (int s, uintC len);
+extern cl_LF zeta3 (uintC len);
+}
 using namespace cln;
 #include <iostream>
 using namespace std;
@@ -20,11 +29,6 @@ int main (int argc, char * argv[])
 	if (argc < 2)
 		exit(1);
 	uintL len = atoi(argv[1]);
-	extern cl_LF zeta (int s, uintC len);
-	extern cl_LF compute_zeta_exp (int s, uintC len);
-	extern cl_LF compute_zeta_cvz1 (int s, uintC len);
-	extern cl_LF compute_zeta_cvz2 (int s, uintC len);
-	extern cl_LF zeta3 (uintC len);
 	cl_LF p;
 	ln(cl_I_to_LF(1000,len+10)); // fill cache
 	{ CL_TIMING;