ash: protect WIFSTOPPED use with #if JOBS

This change fixes the build in setups where there are
no headers defining WIFSTOPPED and WSTOPSIG (where JOBS has to be
set to 0).

This partially reverts 4700fb5be (ash: make dowait() a bit more
readable. Logic is unchanged, 2015-10-09).

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 9 insertions, 3 deletions

diff --git a/shell/ash.c b/shell/ash.c
index 8c2098dd9..b0c7dac54 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -4022,15 +4022,19 @@ sprint_status48(char *s, int status, int sigonly)
 
         col = 0;
         if (!WIFEXITED(status)) {
-                if (JOBS && WIFSTOPPED(status))
+#if JOBS
+                if (WIFSTOPPED(status))
                         st = WSTOPSIG(status);
                 else
+#endif
                         st = WTERMSIG(status);
                 if (sigonly) {
                         if (st == SIGINT || st == SIGPIPE)
                                 goto out;
-                        if (JOBS && WIFSTOPPED(status))
+#if JOBS
+                        if (WIFSTOPPED(status))
                                 goto out;
+#endif
                 }
                 st &= 0x7f;
 //TODO: use bbox's get_signame? strsignal adds ~600 bytes to text+rodata
@@ -4182,8 +4186,10 @@ dowait(int block, struct job *job)
                 goto out;
         }
         /* The process wasn't found in job list */
-        if (JOBS && !WIFSTOPPED(status))
+#if JOBS
+        if (!WIFSTOPPED(status))
                 jobless--;
+#endif
  out:
         INT_ON;