[OMPI devel] undefined environ symbol on Darwin
On MacOS X, the current v1.1.5 and v1.2.2 sources for openmpi create shared libraries with undefined environ symbols. This problem on MacOS X and the available workarounds are discussed on the fink wiki section on Porting Notes... http://wiki.finkproject.org/index.php/Fink:Porting_Notes There are quite a number of source files which will need to be patched to fix this. For example, openmpi 1.2.2 shows... openmpi-1.2.2/ompi/communicator/comm_dyn.c:extern char **environ; openmpi-1.2.2/opal/tools/wrappers/opal_wrapper.c:extern char **environ; openmpi-1.2.2/orte/mca/odls/base/odls_private.h:ORTE_DECLSPEC int orte_odls_base_purge_environment(char ***environ); openmpi-1.2.2/orte/mca/pls/bproc/pls_bproc.c:extern char **environ; openmpi-1.2.2/orte/mca/pls/gridengine/pls_gridengine_module.c:extern char **environ; openmpi-1.2.2/orte/mca/pls/poe/pls_poe_component.c:extern char **environ; openmpi-1.2.2/orte/mca/pls/poe/pls_poe_module.c:extern char **environ; openmpi-1.2.2/orte/mca/pls/rsh/pls_rsh_component.c:extern char **environ; openmpi-1.2.2/orte/mca/pls/rsh/pls_rsh_component.c:extern char **environ; openmpi-1.2.2/orte/mca/pls/rsh/pls_rsh_module.c:extern char **environ; openmpi-1.2.2/orte/mca/pls/slurm/pls_slurm_module.c:extern char **environ; openmpi-1.2.2/orte/mca/pls/tm/pls_tm_module.c:extern char **environ; openmpi-1.2.2/orte/mca/pls/xgrid/src/pls_xgrid_client.m:char **environ; openmpi-1.2.2/orte/mca/rmgr/base/rmgr_base_check_context.c:extern char **environ; openmpi-1.2.2/orte/mca/sds/base/base.h: char ***environ); openmpi-1.2.2/orte/runtime/orte_setup_hnp.c:extern char **environ; openmpi-1.2.2/orte/tools/orterun/totalview.c:extern char **environ; I would suggest you look at the second approach proposed in the fink wiki of modifying configure to check for the presence of the crt_externs.h header and the _NSGetEnviron symbol directly. Jack ps This issue arises when trying to build packages like paraview which won't link its shared libraries due to the undefined environ symbol. I would also note this issue is discussed at... http://lists.apple.com/archives/Darwin-dev/2005/Mar/msg00132.html
Re: [OMPI devel] undefined environ symbol on Darwin
I have been told that Paraview is one package that exhibits this problem with undefined environ symbols. This will occur in any package which creates its own shared libraries that link in any openmpi shared library that contains the undefined environ symbol. I think it is unreasonably restrictive to force all the application developers who use openmpi to avoid creating shared libs that use openmpi shared libraries. Again from the response on the Darwin mailing list this is expected behavior on Darwin. I will send two patches shortly that address this without needing to touch configure. Jack
[OMPI devel] MacOS X v1.1.5 patch
The following patch, against openmpi v1.1.5, prevents undefined environ symbols
in the openmpi shared libraries
on MacOS X. This approach avoids the need to modifiy the configure scripts.
Jack
diff -uNr openmpi-1.1.5/ompi/communicator/comm_dyn.c
openmpi-1.1.5.environ/ompi/communicator/comm_dyn.c
--- openmpi-1.1.5/ompi/communicator/comm_dyn.c 2007-05-27 20:27:37.0
-0400
+++ openmpi-1.1.5.environ/ompi/communicator/comm_dyn.c 2007-05-27
20:25:55.0 -0400
@@ -51,7 +51,12 @@
#include "orte/runtime/runtime.h"
+# ifdef __APPLE__
+# include
+# define environ (*_NSGetEnviron())
+# else
extern char **environ;
+# endif
int ompi_comm_connect_accept ( ompi_communicator_t *comm, int root,
orte_process_name_t *port, int send_first,
diff -uNr openmpi-1.1.5/opal/tools/wrappers/opal_wrapper.c
openmpi-1.1.5.environ/opal/tools/wrappers/opal_wrapper.c
--- openmpi-1.1.5/opal/tools/wrappers/opal_wrapper.c2006-04-12
12:12:06.0 -0400
+++ openmpi-1.1.5.environ/opal/tools/wrappers/opal_wrapper.c2007-05-27
20:05:22.0 -0400
@@ -48,7 +48,12 @@
#include "opal/util/path.h"
#include "opal/util/few.h"
+# ifdef __APPLE__
+# include
+# define environ (*_NSGetEnviron())
+# else
extern char **environ;
+# endif
struct {
char *language;
diff -uNr openmpi-1.1.5/opal/util/opal_environ.c
openmpi-1.1.5.environ/opal/util/opal_environ.c
--- openmpi-1.1.5/opal/util/opal_environ.c 2006-04-12 12:12:07.0
-0400
+++ openmpi-1.1.5.environ/opal/util/opal_environ.c 2007-05-27
20:07:07.0 -0400
@@ -26,7 +26,9 @@
#include "opal/util/argv.h"
#include "opal/util/opal_environ.h"
#include "opal/constants.h"
-
+# ifdef __APPLE__
+# include
+# endif
/*
* Merge two environ-like char arrays, ensuring that there are no
@@ -93,7 +95,11 @@
int i;
char *newvalue, *compare;
size_t len;
+# ifdef __APPLE__
+# define environ (*_NSGetEnviron())
+# else
extern char **environ;
+# endif
/* Make the new value */
diff -uNr openmpi-1.1.5/orte/mca/pls/base/pls_base_context.c
openmpi-1.1.5.environ/orte/mca/pls/base/pls_base_context.c
--- openmpi-1.1.5/orte/mca/pls/base/pls_base_context.c 2006-04-12
12:12:33.0 -0400
+++ openmpi-1.1.5.environ/orte/mca/pls/base/pls_base_context.c 2007-05-27
20:09:03.0 -0400
@@ -42,7 +42,12 @@
#include "orte/mca/pls/base/base.h"
#include "orte/mca/errmgr/errmgr.h"
+# ifdef __APPLE__
+# include
+# define environ (*_NSGetEnviron())
+# else
extern char **environ;
+# endif
int orte_pls_base_check_context_cwd(orte_app_context_t *context,
bool want_chdir)
diff -uNr openmpi-1.1.5/orte/mca/pls/bproc/pls_bproc.c
openmpi-1.1.5.environ/orte/mca/pls/bproc/pls_bproc.c
--- openmpi-1.1.5/orte/mca/pls/bproc/pls_bproc.c2006-09-19
04:51:59.0 -0400
+++ openmpi-1.1.5.environ/orte/mca/pls/bproc/pls_bproc.c2007-05-27
20:09:50.0 -0400
@@ -73,7 +73,12 @@
/**
* Our current evironment
*/
+# ifdef __APPLE__
+# include
+# define environ (*_NSGetEnviron())
+# else
extern char **environ;
+# endif
#if OMPI_HAVE_POSIX_THREADS && OMPI_THREADS_HAVE_DIFFERENT_PIDS
int orte_pls_bproc_launch_threaded(orte_jobid_t);
diff -uNr openmpi-1.1.5/orte/mca/pls/fork/pls_fork_module.c
openmpi-1.1.5.environ/orte/mca/pls/fork/pls_fork_module.c
--- openmpi-1.1.5/orte/mca/pls/fork/pls_fork_module.c 2006-10-10
09:58:48.0 -0400
+++ openmpi-1.1.5.environ/orte/mca/pls/fork/pls_fork_module.c 2007-05-27
20:10:35.0 -0400
@@ -76,7 +76,12 @@
#include "orte/mca/soh/base/base.h"
#include "orte/mca/pls/fork/pls_fork.h"
+# ifdef __APPLE__
+# include
+# define environ (*_NSGetEnviron())
+# else
extern char **environ;
+# endif
#if OMPI_HAVE_POSIX_THREADS && OMPI_THREADS_HAVE_DIFFERENT_PIDS &&
OMPI_ENABLE_PROGRESS_THREADS
static int orte_pls_fork_launch_threaded(orte_jobid_t);
diff -uNr openmpi-1.1.5/orte/mca/pls/poe/pls_poe_component.c
openmpi-1.1.5.environ/orte/mca/pls/poe/pls_poe_component.c
--- openmpi-1.1.5/orte/mca/pls/poe/pls_poe_component.c 2006-04-12
12:12:33.0 -0400
+++ openmpi-1.1.5.environ/orte/mca/pls/poe/pls_poe_component.c 2007-05-27
20:12:18.0 -0400
@@ -31,6 +31,9 @@
#include "opal/util/argv.h"
#include "opal/mca/base/mca_base_param.h"
+# ifdef __APPLE__
+# include
+# endif
/*
* Public string showing the pls ompi_poe component version number
@@ -156,7 +159,11 @@
*/
orte_pls_base_module_t *orte_pls_poe_component_init(int *priority)
{
+# ifdef __APPLE__
+# define environ (*_NSGetEnviron())
+# else
extern char **environ;
+# endif
mca_pls_poe_component.path =
opal_path_findv(mca_pls_poe_component.argv[0], 0, environ, NULL);
if (NULL == mca_pls_poe_component.path) {
return NULL;
diff -uNr openmpi-1.1.5/orte/mca/pls/poe/pls_poe_module.c
openmpi-1.1.5.environ/orte/mca/pls/poe/pls_poe_module.c
--- openmpi-1.1.5/orte/mca/pl
[OMPI devel] MacOS X v1.2.2 patch
The following patch, against openmpi v1.2.2, prevents undefined environ symbols
in the openmpi shared libraries
on MacOS X. This approach avoids the need to modifiy the configure scripts.
Jack
diff -uNr openmpi-1.2.2/ompi/communicator/comm_dyn.c
openmpi-1.2.2.environ/ompi/communicator/comm_dyn.c
--- openmpi-1.2.2/ompi/communicator/comm_dyn.c 2007-01-24 13:16:09.0
-0500
+++ openmpi-1.2.2.environ/ompi/communicator/comm_dyn.c 2007-05-28
16:08:20.0 -0400
@@ -59,7 +59,12 @@
#include "orte/runtime/runtime.h"
#if !defined(__WINDOWS__)
+# ifdef __APPLE__
+# include
+# define environ (*_NSGetEnviron())
+# else
extern char **environ;
+# endif
#endif /* !defined(__WINDOWS__) */
static int ompi_comm_get_rport (orte_process_name_t *port,
diff -uNr openmpi-1.2.2/opal/mca/memory/ptmalloc2/arena.c
openmpi-1.2.2.environ/opal/mca/memory/ptmalloc2/arena.c
--- openmpi-1.2.2/opal/mca/memory/ptmalloc2/arena.c 2006-11-09
13:53:28.0 -0500
+++ openmpi-1.2.2.environ/opal/mca/memory/ptmalloc2/arena.c 2007-05-28
17:50:12.0 -0400
@@ -293,7 +293,12 @@
/* Initialization routine. */
#ifdef _LIBC
#include
+# ifdef __APPLE__
+# include
+# define environ (*_NSGetEnviron())
+# else
extern char **_environ;
+# endif
static char *
internal_function
diff -uNr openmpi-1.2.2/opal/tools/wrappers/opal_wrapper.c
openmpi-1.2.2.environ/opal/tools/wrappers/opal_wrapper.c
--- openmpi-1.2.2/opal/tools/wrappers/opal_wrapper.c2007-04-19
12:30:53.0 -0400
+++ openmpi-1.2.2.environ/opal/tools/wrappers/opal_wrapper.c2007-05-28
16:09:20.0 -0400
@@ -52,7 +52,12 @@
#include "opal/util/os_path.h"
#if !defined(__WINDOWS__)
+# ifdef __APPLE__
+# include
+# define environ (*_NSGetEnviron())
+# else
extern char **environ;
+# endif
#define OPAL_INCLUDE_FLAG "-I"
#define OPAL_LIBDIR_FLAG "-L"
#else
diff -uNr openmpi-1.2.2/opal/util/opal_environ.c
openmpi-1.2.2.environ/opal/util/opal_environ.c
--- openmpi-1.2.2/opal/util/opal_environ.c 2007-04-19 12:30:53.0
-0400
+++ openmpi-1.2.2.environ/opal/util/opal_environ.c 2007-05-28
17:43:50.0 -0400
@@ -28,7 +28,12 @@
#include "opal/constants.h"
#if !defined(__WINDOWS__)
+# ifdef __APPLE__
+# include
+# define environ (*_NSGetEnviron())
+# else
extern char** environ;
+# endif
#endif /* !defined(__WINDOWS__) */
/*
diff -uNr openmpi-1.2.2/orte/mca/pls/bproc/pls_bproc.c
openmpi-1.2.2.environ/orte/mca/pls/bproc/pls_bproc.c
--- openmpi-1.2.2/orte/mca/pls/bproc/pls_bproc.c2007-04-19
12:30:57.0 -0400
+++ openmpi-1.2.2.environ/orte/mca/pls/bproc/pls_bproc.c2007-05-28
16:10:37.0 -0400
@@ -81,7 +81,12 @@
/**
* Our current evironment
*/
+# ifdef __APPLE__
+# include
+# define environ (*_NSGetEnviron())
+# else
extern char **environ;
+# endif
static bool daemons_launched;
static bool bynode;
diff -uNr openmpi-1.2.2/orte/mca/pls/gridengine/pls_gridengine_module.c
openmpi-1.2.2.environ/orte/mca/pls/gridengine/pls_gridengine_module.c
--- openmpi-1.2.2/orte/mca/pls/gridengine/pls_gridengine_module.c
2007-04-19 12:30:57.0 -0400
+++ openmpi-1.2.2.environ/orte/mca/pls/gridengine/pls_gridengine_module.c
2007-05-28 16:11:25.0 -0400
@@ -90,7 +90,12 @@
#include "orte/mca/pls/gridengine/pls_gridengine.h"
#if !defined(__WINDOWS__)
+# ifdef __APPLE__
+# include
+# define environ (*_NSGetEnviron())
+# else
extern char **environ;
+# endif
#endif /* !defined(__WINDOWS__) */
orte_pls_base_module_t orte_pls_gridengine_module = {
diff -uNr openmpi-1.2.2/orte/mca/pls/poe/pls_poe_component.c
openmpi-1.2.2.environ/orte/mca/pls/poe/pls_poe_component.c
--- openmpi-1.2.2/orte/mca/pls/poe/pls_poe_component.c 2006-11-09
13:54:09.0 -0500
+++ openmpi-1.2.2.environ/orte/mca/pls/poe/pls_poe_component.c 2007-05-28
16:12:09.0 -0400
@@ -153,7 +153,12 @@
}
#if !defined(__WINDOWS__)
+# ifdef __APPLE__
+# include
+# define environ (*_NSGetEnviron())
+# else
extern char **environ;
+# endif
#endif /* !defined(__WINDOWS__) */
/**
diff -uNr openmpi-1.2.2/orte/mca/pls/poe/pls_poe_module.c
openmpi-1.2.2.environ/orte/mca/pls/poe/pls_poe_module.c
--- openmpi-1.2.2/orte/mca/pls/poe/pls_poe_module.c 2007-02-16
13:20:49.0 -0500
+++ openmpi-1.2.2.environ/orte/mca/pls/poe/pls_poe_module.c 2007-05-28
16:12:53.0 -0400
@@ -56,7 +56,12 @@
#include "orte/mca/pls/poe/pls_poe.h"
#if !defined(__WINDOWS__)
+# ifdef __APPLE__
+# include
+# define environ (*_NSGetEnviron())
+# else
extern char **environ;
+# endif
#endif /* !defined(__WINDOWS__) */
/*
diff -uNr openmpi-1.2.2/orte/mca/pls/rsh/pls_rsh_component.c
openmpi-1.2.2.environ/orte/mca/pls/rsh/pls_rsh_component.c
--- openmpi-1.2.2/orte/mca/pls/rsh/pls_rsh_component.c 2007-01-13
21:39:47.0 -0500
+++ openmpi-1.2.2.environ/orte/mca/pls/rsh/pls_rsh_component.c 2007-05-28
16:14:15.0 -0400
@@ -45,7 +45,1
[OMPI devel] MacOS X v1.2.2 patch (corrected)
This is the previous patch for 1.2.2 again with a minor typo fixed.
One of the ifdef's was missing an underscore.
Jack
diff -uNr openmpi-1.2.2/ompi/communicator/comm_dyn.c
openmpi-1.2.2.environ/ompi/communicator/comm_dyn.c
--- openmpi-1.2.2/ompi/communicator/comm_dyn.c 2007-01-24 13:16:09.0
-0500
+++ openmpi-1.2.2.environ/ompi/communicator/comm_dyn.c 2007-05-28
16:08:20.0 -0400
@@ -59,7 +59,12 @@
#include "orte/runtime/runtime.h"
#if !defined(__WINDOWS__)
+# ifdef __APPLE__
+# include
+# define environ (*_NSGetEnviron())
+# else
extern char **environ;
+# endif
#endif /* !defined(__WINDOWS__) */
static int ompi_comm_get_rport (orte_process_name_t *port,
diff -uNr openmpi-1.2.2/opal/mca/memory/ptmalloc2/arena.c
openmpi-1.2.2.environ/opal/mca/memory/ptmalloc2/arena.c
--- openmpi-1.2.2/opal/mca/memory/ptmalloc2/arena.c 2006-11-09
13:53:28.0 -0500
+++ openmpi-1.2.2.environ/opal/mca/memory/ptmalloc2/arena.c 2007-05-28
17:50:12.0 -0400
@@ -293,7 +293,12 @@
/* Initialization routine. */
#ifdef _LIBC
#include
+# ifdef __APPLE__
+# include
+# define environ (*_NSGetEnviron())
+# else
extern char **_environ;
+# endif
static char *
internal_function
diff -uNr openmpi-1.2.2/opal/tools/wrappers/opal_wrapper.c
openmpi-1.2.2.environ/opal/tools/wrappers/opal_wrapper.c
--- openmpi-1.2.2/opal/tools/wrappers/opal_wrapper.c2007-04-19
12:30:53.0 -0400
+++ openmpi-1.2.2.environ/opal/tools/wrappers/opal_wrapper.c2007-05-28
16:09:20.0 -0400
@@ -52,7 +52,12 @@
#include "opal/util/os_path.h"
#if !defined(__WINDOWS__)
+# ifdef __APPLE__
+# include
+# define environ (*_NSGetEnviron())
+# else
extern char **environ;
+# endif
#define OPAL_INCLUDE_FLAG "-I"
#define OPAL_LIBDIR_FLAG "-L"
#else
diff -uNr openmpi-1.2.2/opal/util/opal_environ.c
openmpi-1.2.2.environ/opal/util/opal_environ.c
--- openmpi-1.2.2/opal/util/opal_environ.c 2007-04-19 12:30:53.0
-0400
+++ openmpi-1.2.2.environ/opal/util/opal_environ.c 2007-05-28
17:43:50.0 -0400
@@ -28,7 +28,12 @@
#include "opal/constants.h"
#if !defined(__WINDOWS__)
+# ifdef __APPLE__
+# include
+# define environ (*_NSGetEnviron())
+# else
extern char** environ;
+# endif
#endif /* !defined(__WINDOWS__) */
/*
diff -uNr openmpi-1.2.2/orte/mca/pls/bproc/pls_bproc.c
openmpi-1.2.2.environ/orte/mca/pls/bproc/pls_bproc.c
--- openmpi-1.2.2/orte/mca/pls/bproc/pls_bproc.c2007-04-19
12:30:57.0 -0400
+++ openmpi-1.2.2.environ/orte/mca/pls/bproc/pls_bproc.c2007-05-28
16:10:37.0 -0400
@@ -81,7 +81,12 @@
/**
* Our current evironment
*/
+# ifdef __APPLE__
+# include
+# define environ (*_NSGetEnviron())
+# else
extern char **environ;
+# endif
static bool daemons_launched;
static bool bynode;
diff -uNr openmpi-1.2.2/orte/mca/pls/gridengine/pls_gridengine_module.c
openmpi-1.2.2.environ/orte/mca/pls/gridengine/pls_gridengine_module.c
--- openmpi-1.2.2/orte/mca/pls/gridengine/pls_gridengine_module.c
2007-04-19 12:30:57.0 -0400
+++ openmpi-1.2.2.environ/orte/mca/pls/gridengine/pls_gridengine_module.c
2007-05-28 16:11:25.0 -0400
@@ -90,7 +90,12 @@
#include "orte/mca/pls/gridengine/pls_gridengine.h"
#if !defined(__WINDOWS__)
+# ifdef __APPLE__
+# include
+# define environ (*_NSGetEnviron())
+# else
extern char **environ;
+# endif
#endif /* !defined(__WINDOWS__) */
orte_pls_base_module_t orte_pls_gridengine_module = {
diff -uNr openmpi-1.2.2/orte/mca/pls/poe/pls_poe_component.c
openmpi-1.2.2.environ/orte/mca/pls/poe/pls_poe_component.c
--- openmpi-1.2.2/orte/mca/pls/poe/pls_poe_component.c 2006-11-09
13:54:09.0 -0500
+++ openmpi-1.2.2.environ/orte/mca/pls/poe/pls_poe_component.c 2007-05-28
16:12:09.0 -0400
@@ -153,7 +153,12 @@
}
#if !defined(__WINDOWS__)
+# ifdef __APPLE__
+# include
+# define environ (*_NSGetEnviron())
+# else
extern char **environ;
+# endif
#endif /* !defined(__WINDOWS__) */
/**
diff -uNr openmpi-1.2.2/orte/mca/pls/poe/pls_poe_module.c
openmpi-1.2.2.environ/orte/mca/pls/poe/pls_poe_module.c
--- openmpi-1.2.2/orte/mca/pls/poe/pls_poe_module.c 2007-02-16
13:20:49.0 -0500
+++ openmpi-1.2.2.environ/orte/mca/pls/poe/pls_poe_module.c 2007-05-28
16:12:53.0 -0400
@@ -56,7 +56,12 @@
#include "orte/mca/pls/poe/pls_poe.h"
#if !defined(__WINDOWS__)
+# ifdef __APPLE__
+# include
+# define environ (*_NSGetEnviron())
+# else
extern char **environ;
+# endif
#endif /* !defined(__WINDOWS__) */
/*
diff -uNr openmpi-1.2.2/orte/mca/pls/rsh/pls_rsh_component.c
openmpi-1.2.2.environ/orte/mca/pls/rsh/pls_rsh_component.c
--- openmpi-1.2.2/orte/mca/pls/rsh/pls_rsh_component.c 2007-01-13
21:39:47.0 -0500
+++ openmpi-1.2.2.environ/orte/mca/pls/rsh/pls_rsh_component.c 2007-05-28
16:14:15.0 -0400
@@ -45,7 +45,12 @@
#include "orte/mca/pls/rsh/pls_rsh.h"
#if !defined(__WINDOWS__)
+# i
Re: [OMPI devel] undefined environ symbol on Darwin
Brian, If you Google "crt_externs.h darwin", you will see that this approach is very widely used for many packages include wine, 4Suite, ruby, etc. We can take this over to the darwin developer mailing list but they will tell you the same thing I am. It is bad form to create shared libraries with undefined symbols that have to be created as a special case. Better to handle that in the shared library than to inflict that onto the developer using it. Jack
Re: [OMPI devel] undefined environ symbol on Darwin
Brian, One general example of why openmpi shouldn't be creating shared libraries with undefined environ symbols is as follows. If a python based application was using the openmpi shared libraries linked into the application's python module, your suggested approach would be unusable since the user would have to rebuild python to explicitly provide the missing environ symbol. You will always run into such corner cases as long as openmpi is misbuilt on darwin. Jack ps I have posted this issue to Apple's radar bug reporter as issue 5233061 as well.
Re: [OMPI devel] undefined environ symbol on Darwin
Brian, Below is the response I got from the fink developer who was trying to package paraview and ran into this problem with the undefined environ symbol in openmpi. I have also emailed on darwin-dev to get a clarification on this issue. However your argument against target specific chances is rather ironic considering openmpi already has wrappers for Windows on those lines of code. I've attached the error that is seen while compiling paraview. Jack --- I tried several patches to the paraview build scripts in order to get rid of this undefined symbol, but I was not successful, one reason being that the build process uses cmake which I find much less transparent than the usual configure/libtool combination. While looking through the build script, I see now that in fact there is a difference between the linker command for this library libicet_mpi.dylib and many other dylibs built in paraview, for example libvtkParallel.pv2.6.dylib. Those use an explicit -Wl,-flat_namespace,-U,_environ linker flag. Could it be that this is there in order to avoid exactly this problem? I don't know. I'll look some more where this comes from. Here the error: cd /sw_unstable/src/fink.build/paraview-mpi-openmpi-2.6.1-1001/paraview-mpi-openmpi-darwin/Utilities/IceT/src/communication && /sw/bin/cmake -E cmake_link_script CMakeFiles/icet_mpi.dir/link.txt --verbose=1 /sw/bin/gcc-O3 -DNDEBUG -dynamiclib -headerpad_max_install_names -Wl,-search_paths_first -o ../../../../bin/libicet_mpi.dylib -install_name /sw/lib/paraview-2.6/libicet_mpi.dylib "CMakeFiles/icet_mpi.dir/mpi.o" -L/sw_unstable/src/fink.build/paraview-mpi-openmpi-2.6.1-1001/paraview-mpi-openmpi-darwin/bin -L/usr/X11R6/lib -lGLU -L/usr/X11R6/lib -lGL -L/sw/lib/openmpi -lmpi -lmpi_cxx -licet -L/usr/X11R6/lib -lGLU -L/usr/X11R6/lib -lGL -L/sw/lib/openmpi -lmpi -lmpi_cxx ld: Undefined symbols: _environ /usr/bin/libtool: internal link edit command failed make[2]: *** [bin/libicet_mpi.dylib] Error 1
Re: [OMPI devel] undefined environ symbol on Darwin
Ralph, I don't know why such patches should be harder to maintain in Windows than on Darwin. All you do is the equivalent to... cd /sw/lib/openmpi/lib nm * | grep environ and if you see environ undefined, identify which library it is in and which object file it came from. I would also note that my patch reveals that several instances of the environ variable being declared that are missing the Windows wrappers. So if anything, adding the Darwin patch will increase the probability that both targets are properly maintained. Jack
