ash: JOBSTOPPED can only be set if job control is compiled in - conditionalize code which depends on it

With !ASH_JOB_CONTROL:

function                                             old     new   delta
cmdloop                                              363     351     -12
exitcmd                                               47      31     -16
.rodata                                           106422  106398     -24
stoppedjobs                                           58       -     -58
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 0/3 up/down: 0/-110)           Total: -110 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 13 insertions, 2 deletions

diff --git a/shell/ash.c b/shell/ash.c
index 4122b4dcf..de6e482cd 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -470,7 +470,9 @@ struct jmploc {
 struct globals_misc {
         uint8_t exitstatus;     /* exit status of last command */
         uint8_t back_exitstatus;/* exit status of backquoted command */
+#if JOBS
         smallint job_warning;   /* user was warned about stopped jobs (can be 2, 1 or 0). */
+#endif
         smallint inps4;         /* Prevent PS4 nesting. */
         smallint vforked;
         int savestatus;         /* exit status of last command outside traps */
@@ -575,7 +577,11 @@ extern struct globals_misc *BB_GLOBAL_CONST ash_ptr_to_globals_misc;
 #define G_misc (*ash_ptr_to_globals_misc)
 #define exitstatus        (G_misc.exitstatus )
 #define back_exitstatus   (G_misc.back_exitstatus )
+#if JOBS
 #define job_warning       (G_misc.job_warning)
+#else
+#define job_warning       0
+#endif
 #define inps4       (G_misc.inps4      )
 #define vforked     (G_misc.vforked    )
 #define savestatus  (G_misc.savestatus )
@@ -3935,7 +3941,9 @@ struct job {
         unsigned nprocs;        /* number of processes */
 
 #define JOBRUNNING      0       /* at least one proc running */
+#if JOBS
 #define JOBSTOPPED      1       /* all procs are stopped */
+#endif
 #define JOBDONE         2       /* all procs are completed */
         unsigned
                 state: 8,
@@ -4880,7 +4888,6 @@ fg_bgcmd(int argc UNUSED_PARAM, char **argv)
         } while (*argv && *++argv);
         return retval;
 }
-#endif
 
 /*
  * return 1 if there are stopped jobs, otherwise 0
@@ -4903,6 +4910,9 @@ stoppedjobs(void)
  out:
         return retval;
 }
+#else
+#define stoppedjobs() 0
+#endif
 
 static int FAST_FUNC
 waitcmd(int argc UNUSED_PARAM, char **argv)
@@ -13900,9 +13910,10 @@ cmdloop(int top)
                         numeof++;
                 } else {
                         int i;
-
+#if JOBS
                         /* job_warning can only be 2,1,0. Here 2->1, 1/0->0 */
                         job_warning >>= 1;
+#endif
                         numeof = 0;
                         i = evaltree(n, 0);
                         if (n)