More -Wmissing-variable-declarations fixes.

In addition to adding `static' where possible:

- bin/date: Move `retval' into extern.h to make it visible to date.c.
- bin/ed: Move globally used variables into ed.h.
- sbin/camcontrol: Move `verbose' into camcontrol.h and fix shadow warnings.
- usr.bin/calendar: Remove unneeded variables.
- usr.bin/chat: Make `line' local instead of global.
- usr.bin/elfdump: Comment out unneeded function.
- usr.bin/rlogin: Use _Noreturn instead of __dead2.
- usr.bin/tset: Pull `Ospeed' into extern.h.
- usr.sbin/mfiutil: Put global variables in mfiutil.h.
- usr.sbin/pkg: Remove unused `os_corres'.
- usr.sbin/quotaon, usr.sbin/repquota: Remove unused `qfname'.

4 files changed, 15 insertions, 16 deletions

diff --git a/usr.sbin/pmcstat/pmcpl_calltree.c b/usr.sbin/pmcstat/pmcpl_calltree.c
index 6b8bc61..3d0127d 100644
--- a/usr.sbin/pmcstat/pmcpl_calltree.c
+++ b/usr.sbin/pmcstat/pmcpl_calltree.c
@@ -125,7 +125,7 @@ struct pmcpl_ct_node_hash {
 	STAILQ_ENTRY(pmcpl_ct_node_hash) pch_next;
 };
 
-struct pmcpl_ct_sample pmcpl_ct_callid;
+static struct pmcpl_ct_sample pmcpl_ct_callid;
 
 #define	PMCPL_CT_MAXCOL		PMC_CALLCHAIN_DEPTH_MAX
 #define	PMCPL_CT_MAXLINE	1024	/* TODO: dynamic. */
@@ -135,8 +135,8 @@ struct pmcpl_ct_line {
 	unsigned	ln_index;
 };
 
-struct pmcpl_ct_line	pmcpl_ct_topmax[PMCPL_CT_MAXLINE+1];
-struct pmcpl_ct_node
+static struct pmcpl_ct_line	pmcpl_ct_topmax[PMCPL_CT_MAXLINE+1];
+static struct pmcpl_ct_node
     *pmcpl_ct_topscreen[PMCPL_CT_MAXCOL+1][PMCPL_CT_MAXLINE+1];
 
 /*
diff --git a/usr.sbin/pmcstat/pmcstat.c b/usr.sbin/pmcstat/pmcstat.c
index 6808eed..cc43b82 100644
--- a/usr.sbin/pmcstat/pmcstat.c
+++ b/usr.sbin/pmcstat/pmcstat.c
@@ -105,13 +105,12 @@ __FBSDID("$FreeBSD$");
 
 /* Globals */
 
-int	pmcstat_interrupt = 0;
-int	pmcstat_displayheight = DEFAULT_DISPLAY_HEIGHT;
-int	pmcstat_displaywidth  = DEFAULT_DISPLAY_WIDTH;
-int	pmcstat_sockpair[NSOCKPAIRFD];
-int	pmcstat_kq;
-kvm_t	*pmcstat_kvm;
-struct kinfo_proc *pmcstat_plist;
+int		pmcstat_displayheight = DEFAULT_DISPLAY_HEIGHT;
+int		pmcstat_displaywidth  = DEFAULT_DISPLAY_WIDTH;
+static int	pmcstat_sockpair[NSOCKPAIRFD];
+static int	pmcstat_kq;
+static kvm_t	*pmcstat_kvm;
+static struct kinfo_proc *pmcstat_plist;
 struct pmcstat_args args;
 
 static void
diff --git a/usr.sbin/pmcstat/pmcstat_log.c b/usr.sbin/pmcstat/pmcstat_log.c
index e5fee35..fdcf9c4 100644
--- a/usr.sbin/pmcstat/pmcstat_log.c
+++ b/usr.sbin/pmcstat/pmcstat_log.c
@@ -142,7 +142,7 @@ struct pmcstat_image_hash_list pmcstat_image_hash[PMCSTAT_NHASH];
 struct pmcstat_process_hash_list pmcstat_process_hash[PMCSTAT_NHASH];
 
 struct pmcstat_stats pmcstat_stats; /* statistics */
-int ps_samples_period; /* samples count between top refresh. */
+static int ps_samples_period; /* samples count between top refresh. */
 
 struct pmcstat_process *pmcstat_kernproc; /* kernel 'process' */
 
@@ -151,7 +151,7 @@ struct pmcstat_process *pmcstat_kernproc; /* kernel 'process' */
 #include "pmcpl_annotate.h"
 #include "pmcpl_calltree.h"
 
-struct pmc_plugins  {
+static struct pmc_plugins  {
 	const char 	*pl_name;	/* name */
 
 	/* configure */
@@ -218,7 +218,7 @@ struct pmc_plugins  {
 	}
 };
 
-int pmcstat_mergepmc;
+static int pmcstat_mergepmc;
 
 int pmcstat_pmcinfilter = 0; /* PMC filter for top mode. */
 float pmcstat_threshold = 0.5; /* Cost filter for top mode. */
@@ -275,7 +275,7 @@ int pmcstat_npmcs;
 /*
  * PMC Top mode pause state.
  */
-int pmcstat_pause;
+static int pmcstat_pause;
 
 static void
 pmcstat_stats_reset(int reset_global)
diff --git a/usr.sbin/pmcstat/pmcstat_log.h b/usr.sbin/pmcstat/pmcstat_log.h
index bfa925c..b4ced4d 100644
--- a/usr.sbin/pmcstat/pmcstat_log.h
+++ b/usr.sbin/pmcstat/pmcstat_log.h
@@ -176,8 +176,8 @@ extern int pmcstat_npmcs; /* PMC count. */
 /*
  * Top mode global options.
  */
-float pmcstat_threshold; /* Threshold to filter node. */
-int pmcstat_pmcinfilter; /* PMC index displayed. */
+extern float pmcstat_threshold; /* Threshold to filter node. */
+extern int pmcstat_pmcinfilter; /* PMC index displayed. */
 
 /* Function prototypes */
 const char *pmcstat_pmcid_to_name(pmc_id_t _pmcid);