sysutils/slurm-wlm: Back out -fno-common patches, add -fcommon flag

Fixes runtime regression caused by r546150

Reported by:    jrm
MFH:            2020Q4

sysutils/slurm-wlm/Makefile

@@ -2,7 +2,7 @@
 
 PORTNAME=	slurm
 DISTVERSION=	20.02.1
-PORTREVISION=	3
+PORTREVISION=	4
 CATEGORIES=	sysutils python
 MASTER_SITES=	https://download.schedmd.com/slurm/
 PKGNAMESUFFIX=	-wlm
@@ -82,8 +82,8 @@ RRD_CONFIGURE_WITH=	rrdtool
 CONFIGURE_ARGS=	--without-ofed
 DOCSDIR=	${PREFIX}/share/doc/${PORTNAME}-${DISTVERSION}
 
-CFLAGS+=	-I${WRKSRC}/slurm -I${LOCALBASE}/include
-LDFLAGS+=	-L${LOCALBASE}/lib -lsysinfo -lprocstat
+CFLAGS+=	-I${WRKSRC}/slurm -I${LOCALBASE}/include -fcommon
+LDFLAGS+=	-L${LOCALBASE}/lib -lsysinfo -lprocstat -fcommon
 
 # Hack around nonfunctional --disable-gtktest flag
 pre-configure-GUI-off:

sysutils/slurm-wlm/files/patch-src_plugins_select_cons__tres_job__test.c

@@ -1,26 +0,0 @@
---- src/plugins/select/cons_tres/job_test.c.orig	2020-03-26 21:44:05 UTC
-+++ src/plugins/select/cons_tres/job_test.c
-@@ -41,23 +41,6 @@
- 
- #define _DEBUG 0	/* Enables module specific debugging */
- 
--/*
-- * These symbols are defined here so when we link with something other
-- * than the slurmctld we will have these symbols defined. They will get
-- * overwritten when linking with the slurmctld.
-- */
--#if defined (__APPLE__)
--extern slurmctld_config_t slurmctld_config __attribute__((weak_import));
--extern bitstr_t *idle_node_bitmap __attribute__((weak_import));
--extern node_record_t *node_record_table_ptr __attribute__((weak_import));
--extern List job_list __attribute__((weak_import));
--#else
--slurmctld_config_t slurmctld_config;
--bitstr_t *idle_node_bitmap;
--node_record_t *node_record_table_ptr;
--List job_list;
--#endif
--
- typedef struct node_weight_struct {
- 	bitstr_t *node_bitmap;	/* bitmap of nodes with this weight */
- 	uint32_t weight;	/* priority of node for scheduling work on */

sysutils/slurm-wlm/files/patch-src_scancel_scancel.c

@@ -1,10 +0,0 @@
---- src/scancel/scancel.c.orig	2020-03-26 21:44:05 UTC
-+++ src/scancel/scancel.c
-@@ -99,6 +99,7 @@ static	pthread_cond_t   num_active_threads_cond;
- static	pthread_mutex_t  max_delay_lock;
- static	uint32_t max_resp_time = 0;
- static	int request_count = 0;
-+opt_t opt;
- 
- int
- main (int argc, char **argv)

sysutils/slurm-wlm/files/patch-src_scancel_scancel.h

@@ -1,11 +0,0 @@
---- src/scancel/scancel.h.orig	2020-03-26 21:44:05 UTC
-+++ src/scancel/scancel.h
-@@ -75,7 +75,7 @@ typedef struct scancel_options {
- 	bool *job_pend;		/* Set fi job is pending	*/
- } opt_t;
- 
--opt_t opt;
-+extern opt_t opt;
- 
- /* process options:
-  * 1. set defaults