slurm/check-for-lipmix.so.MAJOR.patch

From: Christian Goll <cgoll@suse.com>
Date: Thu Feb 27 17:09:11 2020 +0100
Subject: check for lipmix.so.MAJOR
Patch-mainline: Not yet
Git-commit: 6a280d70ba914a4c9734986b353fbb0e76eb664b
References: 

This is a hack with a safety net included: make sure
PMIX version is 3 for PMX .so version 2.

Edited-by: Egbert Eich <eich@suse.com>
---
 slurm-20.02.0/src/plugins/mpi/pmix/mpi_pmix.c | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)
diff --git a/src/plugins/mpi/pmix/mpi_pmix.c b/src/plugins/mpi/pmix/mpi_pmix.c
index 7a65895..e18b01d 100644
--- a/src/plugins/mpi/pmix/mpi_pmix.c
+++ b/src/plugins/mpi/pmix/mpi_pmix.c
@@ -109,6 +109,18 @@ static void *_libpmix_open(void)
 #endif
 	xstrfmtcat(full_path, "libpmix.so");
 
+/*
+ * pmix.so library age is 2 for pmi version 3
+ */
+#if defined (PMIX_SO)
+# if HAVE_PMIX_VER != 3 || PMIX_SO != 2
+#  error PMIX .so != 2 or PMIX version != 3
+# else
+#  define PMIX_SO_STRING "2"
+# endif
+	  lib_plug = dlopen("libpmix.so."PMIX_SO_STRING, RTLD_LAZY | RTLD_GLOBAL);
+	if(!lib_plug)
+#endif
 	lib_plug = dlopen(full_path, RTLD_LAZY | RTLD_GLOBAL);
 	xfree(full_path);
 
@@ -130,7 +145,7 @@ extern int init(void)
 {
 	libpmix_plug = _libpmix_open();
 	if (!libpmix_plug) {
-		PMIXP_ERROR("pmi/pmix: can not load PMIx library");
+		PMIXP_ERROR("pmi/pmix: can not load PMIx library: %d",(int) HAVE_PMIX_VER);
 		return SLURM_ERROR;
 	}
 	return SLURM_SUCCESS;