gnu: Update scotch to 6.0.4.

* gnu/packages/maths.scm (scotch): Update to 6.0.4.
  [arguments]: Add -fPIC to CFLAGS.
* gnu/packages/patches/scotch-test-threading.patch: Adjust patch for a
  new set of test fixes.
* gnu/packages/patches/pt-scotch-build-parallelism.patch: New patch.
* gnu-system.am (dist_patch_DATA): Add it.

2 files changed, 20 insertions, 124 deletions

diff --git a/gnu/packages/patches/pt-scotch-build-parallelism.patch b/gnu/packages/patches/pt-scotch-build-parallelism.patch
new file mode 100644
index 0000000000..2ac5f27f52
--- /dev/null
+++ b/gnu/packages/patches/pt-scotch-build-parallelism.patch
@@ -0,0 +1,13 @@
+Building with -j may cause the esmumps_main target to fail with a "no rule for
+dependency libptesmumps.a" error.  Fix the dependency name.
+
+--- scotch_6.0.4/src/esmumps/Makefile	2012-12-01 08:29:29.000000000 -0600
++++ scotch_6.0.4/src/esmumps/Makefile	2015-06-15 17:29:23.279605734 -0500
+@@ -160,6 +160,6 @@
+ 					order.h					\
+ 					symbol.h				\
+ 					esmumps.h				\
+-					lib$(ESMUMPSLIB)$(LIB)			\
++					libesmumps$(LIB)			\
+ 					$(libdir)/lib$(SCOTCHLIB)$(LIB)		\
+ 					$(libdir)/lib$(SCOTCHLIB)errexit$(LIB)
diff --git a/gnu/packages/patches/scotch-test-threading.patch b/gnu/packages/patches/scotch-test-threading.patch
index 2527a6e6dd..de8cc49c41 100644
--- a/gnu/packages/patches/scotch-test-threading.patch
+++ b/gnu/packages/patches/scotch-test-threading.patch
@@ -1,139 +1,22 @@
-* These tests assume threading support, even when the library is compiled
-  without it.  Protect these checks.
+Fix this test so that it succeeds when the library is not compiled with
+SCOTCH_PTHREAD.
 
-* Tests should not require keyboard interaction.
-
---- a/src/check/test_scotch_dgraph_band.c	2012-09-27 10:46:42.000000000 -0500
-+++ b/src/check/test_scotch_dgraph_band.c	2014-05-13 14:36:07.479270243 -0500
-@@ -99,10 +99,12 @@
-     errorPrint ("main: Cannot initialize (1)");
-     exit       (1);
-   }
-+#ifdef SCOTCH_PTHREAD
-   if (thrdlvlreqval > thrdlvlproval) {
-     errorPrint ("main: Cannot initialize (2)");
-     exit       (1);
-   }
-+#endif
- 
-   if (argc != 2) {
-     errorPrint ("main: invalid number of parameters");
-@@ -115,12 +117,14 @@
- 
-   fprintf (stderr, "Proc %2d of %2d, pid %d\n", proclocnum, procglbnbr, getpid ());
- 
-+#ifdef SCOTCH_DEBUG_CHECK2
-   if (proclocnum == 0) {                          /* Synchronize on keybord input */
-     char           c;
- 
-     printf ("Waiting for key press...\n");
-     scanf ("%c", &c);
-   }
-+#endif /* SCOTCH_DEBUG_CHECK2 */
- 
-   if (MPI_Barrier (proccomm) != MPI_SUCCESS) {    /* Synchronize for debug */
-     errorPrint ("main: cannot communicate");
---- a/src/check/test_scotch_dgraph_grow.c	2012-11-30 12:19:33.000000000 -0600
-+++ b/src/check/test_scotch_dgraph_grow.c	2014-05-13 14:35:31.307269303 -0500
-@@ -103,10 +103,12 @@
-     errorPrint ("main: Cannot initialize (1)");
-     exit       (1);
-   }
-+#ifdef SCOTCH_PTHREAD
-   if (thrdlvlreqval > thrdlvlproval) {
-     errorPrint ("main: Cannot initialize (2)");
-     exit       (1);
-   }
-+#endif
- 
-   if (argc != 2) {
-     errorPrint ("main: invalid number of parameters");
-@@ -119,12 +121,14 @@
- 
-   fprintf (stderr, "Proc %2d of %2d, pid %d\n", proclocnum, procglbnbr, getpid ());
- 
-+#ifdef SCOTCH_DEBUG_CHECK2
-   if (proclocnum == 0) {                          /* Synchronize on keybord input */
-     char           c;
- 
-     printf ("Waiting for key press...\n");
-     scanf ("%c", &c);
-   }
-+#endif /* SCOTCH_DEBUG_CHECK2 */
- 
-   if (MPI_Barrier (proccomm) != MPI_SUCCESS) {    /* Synchronize for debug */
-     errorPrint ("main: cannot communicate");
---- a/src/check/test_scotch_dgraph_redist.c	2012-09-26 11:42:27.000000000 -0500
-+++ b/src/check/test_scotch_dgraph_redist.c	2014-05-13 14:34:30.323267722 -0500
-@@ -98,10 +98,12 @@
-     errorPrint ("main: Cannot initialize (1)");
-     exit       (1);
-   }
-+#ifdef SCOTCH_PTHREAD
-   if (thrdlvlreqval > thrdlvlproval) {
-     errorPrint ("main: Cannot initialize (2)");
-     exit       (1);
-   }
-+#endif
- 
-   if (argc != 2) {
-     errorPrint ("main: invalid number of parameters");
-@@ -114,7 +116,6 @@
- 
-   fprintf (stderr, "Proc %2d of %2d, pid %d\n", proclocnum, procglbnbr, getpid ());
- 
--#define SCOTCH_DEBUG_CHECK2
- #ifdef SCOTCH_DEBUG_CHECK2
-   if (proclocnum == 0) {                          /* Synchronize on keybord input */
-     char           c;
---- /tmp/nix-build-scotch-6.0.0.drv-9/scotch_6.0.0/src/check/test_common_thread.c	2012-11-30 11:05:23.000000000 -0600
-+++ scotch_6.0.0/src/check/test_common_thread.c	2014-05-13 17:26:27.159535244 -0500
-@@ -90,7 +90,7 @@
- /*                       */
- /*************************/
- 
--#if ((defined COMMON_PTHREAD) || (defined SCOTCH_PTHREAD))
-+#ifdef SCOTCH_PTHREAD
- 
- static
- void
-@@ -161,7 +161,7 @@
-   return (o);
- }
- 
--#endif /* ((defined COMMON_PTHREAD) || (defined SCOTCH_PTHREAD)) */
-+#endif /* SCOTCH_PTHREAD */
- 
- /*********************/
- /*                   */
+--- scotch_6.0.4/src/check/test_common_thread.c	2014-09-28 11:39:59.000000000 -0500
++++ scotch_6.0.4/src/check/test_common_thread.c	2015-01-10 00:52:00.076229542 -0600
 @@ -175,14 +175,14 @@
  char *              argv[])
  {
    TestThreadGroup       groudat;
 -#if ((defined COMMON_PTHREAD) || (defined SCOTCH_PTHREAD))
-+#ifdef SCOTCH_PTHREAD
++#if ((defined COMMON_PTHREAD) && (defined SCOTCH_PTHREAD))
    TestThread * restrict thrdtab;
    int                   thrdnbr;
--#endif /* ((defined COMMON_PTHREAD) || (defined SCOTCH_PTHREAD)) */
-+#endif /* SCOTCH_PTHREAD */
+ #endif /* ((defined COMMON_PTHREAD) || (defined SCOTCH_PTHREAD)) */
  
    SCOTCH_errorProg (argv[0]);
  
 -#if ((defined COMMON_PTHREAD) || (defined SCOTCH_PTHREAD))
-+#ifdef SCOTCH_PTHREAD
++#if ((defined COMMON_PTHREAD) && (defined SCOTCH_PTHREAD))
    thrdnbr = SCOTCH_PTHREAD_NUMBER;
  
    groudat.redusum = COMPVAL (thrdnbr);
-@@ -197,9 +197,9 @@
-     errorPrint ("main: cannot launch or run threads");
-     return     (1);
-   }
--#else /* ((defined COMMON_PTHREAD) || (defined SCOTCH_PTHREAD)) */
--  printf ("Scotch not compiled with either COMMON_PTHREAD or SCOTCH_PTHREAD\n");
--#endif /* ((defined COMMON_PTHREAD) || (defined SCOTCH_PTHREAD)) */
-+#else /* not SCOTCH_PTHREAD */
-+  printf ("Scotch not compiled with SCOTCH_PTHREAD\n");
-+#endif /* not SCOTCH_PTHREAD */
- 
-   return (0);
- }