I am trying to build the trunk version of gcc to have Cilk on OpenBSD.
I attach three changes to libcilkrts. Two changes treat OpenBSD like
FreeBSD. One change is needed because OpenBSD defines PTHREAD_MUTEX_* as
enumerations rather than preprocessor constants.
Index: /data/jfc/src/GNU/trunk/libcilkrts/runtime/os-unix.c
===================================================================
--- /data/jfc/src/GNU/trunk/libcilkrts/runtime/os-unix.c (revision 204488)
+++ /data/jfc/src/GNU/trunk/libcilkrts/runtime/os-unix.c (working copy)
@@ -54,7 +54,7 @@
#elif defined __APPLE__
# include <sys/sysctl.h>
// Uses sysconf(_SC_NPROCESSORS_ONLN) in verbose output
-#elif defined __FreeBSD__
+#elif defined __FreeBSD__ || defined __OpenBSD__
// No additional include files
#elif defined __CYGWIN__
// Cygwin on Windows - no additional include files
@@ -369,7 +369,7 @@
assert((unsigned)count == count);
return count;
-#elif defined __FreeBSD__ || defined __CYGWIN__
+#elif defined __FreeBSD__ || defined __OpenBSD__ || defined __CYGWIN__
int ncores = sysconf(_SC_NPROCESSORS_ONLN);
return ncores;
Index: /data/jfc/src/GNU/trunk/libcilkrts/runtime/os_mutex-unix.c
===================================================================
--- /data/jfc/src/GNU/trunk/libcilkrts/runtime/os_mutex-unix.c (revision 204488)
+++ /data/jfc/src/GNU/trunk/libcilkrts/runtime/os_mutex-unix.c (working copy)
@@ -89,7 +89,7 @@
status = pthread_mutexattr_init(&attr);
CILK_ASSERT (status == 0);
#if defined DEBUG || CILK_LIB_DEBUG
-#ifdef PTHREAD_MUTEX_ERRORCHECK
+#if defined PTHREAD_MUTEX_ERRORCHECK || defined __OpenBSD__
status = pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_ERRORCHECK);
#else
status = pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_ERRORCHECK_NP);
