pmix configury: add missing PMIX_CHECK_ICC_VARARGS function

Thanks Paul Hargrove for the report

(back-ported from openpmix/openpmix@7b16e91)

(cherry picked from commit open-mpi/ompi@15e26da)

Author: ggouaillardet

opal/mca/pmix/pmix112/pmix/config/Makefile.am

@@ -1,5 +1,7 @@
 # PMIx copyrights:
 # Copyright (c) 2013-2015 Intel, Inc. All rights reserved
+# Copyright (c) 2016      Research Organization for Information Science
+#                         and Technology (RIST). All rights reserved.
 #
 #########################
 #
@@ -31,6 +33,7 @@ EXTRA_DIST += \
 	config/pmix_check_attributes.m4 \
 	config/pmix_check_broken_qsort.m4 \
 	config/pmix_check_compiler_version.m4 \
+	config/pmix_check_icc.m4 \
 	config/pmix_check_ident.m4 \
 	config/pmix_check_munge.m4 \
 	config/pmix_check_package.m4 \

opal/mca/pmix/pmix112/pmix/config/pmix_check_icc.m4

@@ -0,0 +1,62 @@
+dnl -*- shell-script -*-
+dnl
+dnl Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
+dnl                         University Research and Technology
+dnl                         Corporation.  All rights reserved.
+dnl Copyright (c) 2004-2005 The University of Tennessee and The University
+dnl                         of Tennessee Research Foundation.  All rights
+dnl                         reserved.
+dnl Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
+dnl                         University of Stuttgart.  All rights reserved.
+dnl Copyright (c) 2004-2005 The Regents of the University of California.
+dnl                         All rights reserved.
+dnl Copyright (c) 2014      Intel, Inc. All rights reserved.
+dnl Copyright (c) 2016      Research Organization for Information Science
+dnl                         and Technology (RIST). All rights reserved.
+dnl $COPYRIGHT$
+dnl
+dnl Additional copyrights may follow
+dnl
+dnl $HEADER$
+dnl
+
+AC_DEFUN([PMIX_CHECK_ICC_VARARGS],[
+dnl
+dnl On EM64T, icc-8.1 before version 8.1.027 segfaulted, since
+dnl va_start was miscompiled...
+dnl
+AC_MSG_CHECKING([whether icc-8.1 for EM64T works with variable arguments])
+AC_TRY_RUN([
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+void func (int c, char * f, ...)
+{
+  va_list arglist;
+  va_start (arglist, f);
+  /* vprintf (f, arglist); */
+  va_end (arglist);
+}
+
+int main ()
+{
+  FILE *f;
+  func (4711, "Help %d [%s]\n", 10, "ten");
+  f=fopen ("conftestval", "w");
+  if (!f) exit (1);
+  return 0;
+}
+
+],[pmix_ac_icc_varargs=`test -f conftestval`],[pmix_ac_icc_varargs=1],[pmix_ac_icc_varargs=1])
+
+if test "$pmix_ac_icc_varargs" = "1"; then
+    AC_MSG_WARN([*** Problem running configure test!])
+    AC_MSG_WARN([*** Your icc-8.1 compiler seems to miscompile va_start!])
+    AC_MSG_WARN([*** Please upgrade compiler to at least version 8.1.027])
+    AC_MSG_ERROR([*** Cannot continue.])
+fi
+
+AC_MSG_RESULT([yes])
+
+rm -rf conftest*])dnl