[svn-r6386] Purpose:

    Bug fix

Description:
    The "system scope" for threads isn't supported on all platforms.

Solution:
    Add detection of this feature to the configure script and check for
    "H5_HAVE_SYSTEM_SCOPE_THREADS" in the appropriate places.

Platforms tested:
    modi4 w/threadsafe

1 files changed, 31 insertions, 0 deletions

diff --git a/configure.in b/configure.in
index 8d689e0..7d487e7 100644
--- a/configure.in
+++ b/configure.in
@@ -1483,6 +1483,37 @@ else
 fi
 
 dnl ----------------------------------------------------------------------
+dnl Check if pthread_attr_setscope(&attribute, PTHREAD_SCOPE_SYSTEM)
+dnl is supported on this system
+dnl
+AC_MSG_CHECKING([Threads support system scope])
+AC_CACHE_VAL(hdf5_cv_system_scope_threads,
+AC_TRY_RUN([
+#if STDC_HEADERS
+#include <stdlib.h>
+#include <pthread.h>
+#endif
+
+int main(void)
+{
+    pthread_attr_t attribute;
+    int ret;
+
+    pthread_attr_init(&attribute);
+    ret=pthread_attr_setscope(&attribute, PTHREAD_SCOPE_SYSTEM);
+    exit(ret==0 ? 0 : 1);
+}
+], hdf5_cv_system_scope_threads=yes, hdf5_cv_system_scope_threads=no,))
+
+if test ${hdf5_cv_system_scope_threads} = "yes"; then
+  AC_DEFINE(SYSTEM_SCOPE_THREADS, 1,
+            [Define if your system supports pthread_attr_setscope(&attribute, PTHREAD_SCOPE_SYSTEM) call.])
+  AC_MSG_RESULT(yes)
+else
+  AC_MSG_RESULT(no)
+fi
+
+dnl ----------------------------------------------------------------------
 dnl Checking to see if GPFS is available on this filesystem
 dnl
 AC_CHECK_HEADERS([gpfs.h],