Check for the presence of setenv. If it is present, then use it in opal_setenv when setting values in the environ

configure.ac

@@ -867,7 +867,7 @@ OPAL_SEARCH_LIBS_CORE([dirname], [gen])
 # Darwin doesn't need -lm, as it's a symlink to libSystem.dylib
 OPAL_SEARCH_LIBS_CORE([ceil], [m])
 
-AC_CHECK_FUNCS([asprintf snprintf vasprintf vsnprintf openpty isatty getpwuid fork waitpid execve pipe ptsname setsid mmap tcgetpgrp posix_memalign strsignal sysconf syslog vsyslog regcmp regexec regfree _NSGetEnviron socketpair strncpy_s usleep mkfifo dbopen dbm_open statfs statvfs setpgid])
+AC_CHECK_FUNCS([asprintf snprintf vasprintf vsnprintf openpty isatty getpwuid fork waitpid execve pipe ptsname setsid mmap tcgetpgrp posix_memalign strsignal sysconf syslog vsyslog regcmp regexec regfree _NSGetEnviron socketpair strncpy_s usleep mkfifo dbopen dbm_open statfs statvfs setpgid setenv])
 
 # Sanity check: ensure that we got at least one of statfs or statvfs.
 if test $ac_cv_func_statfs = no -a $ac_cv_func_statvfs = no; then

opal/util/opal_environ.c

@@ -11,7 +11,8 @@
  *                         All rights reserved.
  * Copyright (c) 2006      Cisco Systems, Inc.  All rights reserved.
  * Copyright (c) 2007-2013 Los Alamos National Security, LLC.  All rights
- *                         reserved. 
+ *                         reserved.
+ * Copyright (c) 2014      Intel, Inc. All rights reserved.
  * $COPYRIGHT$
  * 
  * Additional copyrights may follow
@@ -123,10 +124,15 @@ int opal_setenv(const char *name, const char *value, bool overwrite,
     if( *env == environ ) {
         /* THIS IS POTENTIALLY A MEMORY LEAK!  But I am doing it
            because so that we don't violate the law of least
-           astonishmet for OPAL developers (i.e., those that don't
+           astonishment for OPAL developers (i.e., those that don't
            check the return code of opal_setenv() and notice that we
            returned an error if you passed in the real environ) */
+#if defined (HAVE_SETENV)
+        setenv(name, value, overwrite);
+        free(newvalue);
+#else
         putenv(newvalue);
+#endif
         return OPAL_SUCCESS;
     }