Constantise as much as possible so that it reduces COW usage.

src/librc/librc-depend.c

@@ -661,7 +661,7 @@ static const deppair_t deppairs[] = {
 	{ NULL, NULL }
 };
 
-static const char *depdirs[] =
+static const char *const depdirs[] =
 {
 	RC_SVCDIR "/starting",
 	RC_SVCDIR "/started",

src/rc/checkpath.c

@@ -161,7 +161,7 @@ static int parse_owner (struct passwd **user, struct group **group,
 #include "_usage.h"
 #define extraopts "path1 path2 ..."
 #define getoptstring "dfm:o:" getoptstring_COMMON
-static struct option longopts[] = {
+static const struct option longopts[] = {
 	{ "directory",      0, NULL, 'd'},
 	{ "file",           0, NULL, 'f'},
 	{ "mode",           1, NULL, 'm'},

src/rc/fstabinfo.c

@@ -90,7 +90,7 @@ static const char *applet = NULL;
 
 #include "_usage.h"
 #define getoptstring "bmop:t:" getoptstring_COMMON
-static struct option longopts[] = {
+static const struct option longopts[] = {
 	{ "blockdevice",    0, NULL, 'b' },
 	{ "options",        0, NULL, 'o' },
 	{ "passno",         1, NULL, 'p' },

src/rc/mountinfo.c

@@ -335,7 +335,7 @@ static regex_t *get_regex (const char *string)
 #include "_usage.h"
 #define extraopts "[mount1] [mount2] ..."
 #define getoptstring "f:F:n:N:o:O:p:P:ist" getoptstring_COMMON
-static struct option longopts[] = {
+static const struct option longopts[] = {
 	{ "fstype-regex",        1, NULL, 'f'},
 	{ "skip-fstype-regex",   1, NULL, 'F'},
 	{ "node-regex",          1, NULL, 'n'},

src/rc/rc-depend.c

@@ -64,7 +64,7 @@ rc_depinfo_t *_rc_deptree_load (int *regen) {
 
 #include "_usage.h"
 #define getoptstring "t:suT" getoptstring_COMMON
-static struct option longopts[] = {
+static const struct option longopts[] = {
 	{ "type",     1, NULL, 't'},
 	{ "notrace",  0, NULL, 'T'},
 	{ "strict",   0, NULL, 's'},

src/rc/rc-status.c

@@ -43,7 +43,7 @@
 
 static const char *applet;
 
-static const char *types_nua[] = { "ineed", "iuse", "iafter", NULL };
+static const char *const types_nua[] = { "ineed", "iuse", "iafter", NULL };
 
 static void print_level (char *level)
 {

src/rc/rc-update.c

@@ -134,7 +134,7 @@ static void show (char **runlevels, bool verbose)
 	"       rc-update [options] del service <runlevel>\n" \
 	"       rc-update [options] show"
 #define getoptstring getoptstring_COMMON
-static struct option longopts[] = {
+static const struct option longopts[] = {
 	longopts_COMMON
 };
 static const char * const longopts_help[] = {

src/rc/rc.c

@@ -636,7 +636,7 @@ static void do_coldplug (void)
 
 #include "_usage.h"
 #define getoptstring "o:" getoptstring_COMMON
-static struct option longopts[] = {
+static const struct option longopts[] = {
 	{ "override", 1, NULL, 'o' },
 	longopts_COMMON
 };

src/rc/runscript.c

@@ -1027,7 +1027,7 @@ static void svc_restart (bool deps)
 #include "_usage.h"
 #define getoptstring "dDsv" getoptstring_COMMON
 #define extraopts "stop | start | restart | describe | zap"
-static struct option longopts[] = {
+static const struct option longopts[] = {
 	{ "debug",      0, NULL, 'd'},
 	{ "ifstarted",  0, NULL, 's'},
 	{ "nodeps",     0, NULL, 'D'},

src/rc/start-stop-daemon.c

@@ -487,7 +487,7 @@ static void handle_signal (int sig)
 
 #include "_usage.h"
 #define getoptstring "KN:R:Sbc:d:g:mn:op:s:tu:r:x:1:2:" getoptstring_COMMON
-static struct option longopts[] = {
+static const struct option longopts[] = {
 	{ "stop",         0, NULL, 'K'},
 	{ "nicelevel",    1, NULL, 'N'},
 	{ "retry",        1, NULL, 'R'},