This patch try to solve a issue on Leopard. The supposedly global

variables that are not initialized and are declared in a file that
doesn't export any globally visible function are marked as
non-initialized constants, i.e. uninitialized common symbols. For some
obscure reasons, they get removed from the object files on Mac OS X.

So far I found two solution to this problem. One require the addition
of "-c" to the linker command, the second one (corresponding to this
patch) force them to became a common initialized symbol.

This commit was SVN r21739.

ompi/mca/bml/base/bml_base_open.c

@@ -29,7 +29,7 @@
 #include "opal/mca/base/base.h"
 
 int mca_bml_base_already_opened = 0;
-opal_list_t mca_bml_base_components_available;
+opal_list_t mca_bml_base_components_available = {0};
 
 #if OPAL_ENABLE_DEBUG_RELIABILITY
 double mca_bml_base_error_rate_floor;

ompi/mca/btl/base/btl_base_error.c

@@ -31,7 +31,7 @@
 #include "orte/util/name_fns.h"
 #include "orte/runtime/orte_globals.h"
 
-int mca_btl_base_verbose;
+int mca_btl_base_verbose = -1;
 
 int mca_btl_base_err(const char* fmt, ...)
 {

ompi/mca/pml/base/pml_base_request.c

@@ -24,8 +24,8 @@
  * If you wonder why these 2 freelists are declared here read the comment
  * in the pml_base_request.h file.
  */
-ompi_free_list_t mca_pml_base_send_requests;
-ompi_free_list_t mca_pml_base_recv_requests;
+ompi_free_list_t mca_pml_base_send_requests = {0};
+ompi_free_list_t mca_pml_base_recv_requests = {0};
 
 static void mca_pml_base_request_construct(mca_pml_base_request_t* req)
 {

orte/mca/grpcomm/base/grpcomm_base_open.c

@@ -42,7 +42,7 @@
  */
 int orte_grpcomm_base_output = -1;
 bool mca_grpcomm_base_selected;
-orte_grpcomm_base_module_t orte_grpcomm;
+orte_grpcomm_base_module_t orte_grpcomm = {0};
 opal_list_t mca_grpcomm_base_components_available;
 orte_grpcomm_base_component_t mca_grpcomm_base_selected_component;
 int orte_grpcomm_profile_fd = -1;

orte/mca/iof/base/iof_base_open.c

@@ -47,7 +47,7 @@
 
 #include "orte/mca/iof/base/static-components.h"
 
-orte_iof_base_module_t orte_iof;
+orte_iof_base_module_t orte_iof = {0};
 
 
 #if ORTE_DISABLE_FULL_SUPPORT

orte/mca/routed/base/routed_base_components.c

@@ -53,7 +53,7 @@ OBJ_CLASS_INSTANCE(orte_routed_tree_t, opal_list_item_t,
                    construct, destruct);
 
 int orte_routed_base_output = -1;
-orte_routed_module_t orte_routed;
+orte_routed_module_t orte_routed = {0};
 opal_list_t orte_routed_base_components;
 
 static orte_routed_component_t *active_component = NULL;