tAdd error message when child exits whit error - st - [fork] customized build of st, the simple terminal
  HTML git clone git://src.adamsgaard.dk/st
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       ---
   DIR commit ec3268961d1dc4072f6caa6f97db5436da2ff411
   DIR parent 769d48180747c3255653360d161c77ec2a2e8d13
  HTML Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
       Date:   Mon,  4 Aug 2014 22:07:04 +0200
       
       Add error message when child exits whit error
       
       Master proccess was not showing any error message when the child
       died with an error, and it was very confusing for the user (for
       example with incorrect -e command).
       
       Diffstat:
         M st.c                                |      11 +++++------
       
       1 file changed, 5 insertions(+), 6 deletions(-)
       ---
   DIR diff --git a/st.c b/st.c
       t@@ -1176,16 +1176,15 @@ execsh(void) {
        
        void
        sigchld(int a) {
       -        int stat = 0;
       +        int stat, ret;
        
                if(waitpid(pid, &stat, 0) < 0)
                        die("Waiting for pid %hd failed: %s\n", pid, strerror(errno));
        
       -        if(WIFEXITED(stat)) {
       -                exit(WEXITSTATUS(stat));
       -        } else {
       -                exit(EXIT_FAILURE);
       -        }
       +        ret = WIFEXITED(stat) ? WEXITSTATUS(stat) : EXIT_FAILURE;
       +        if (ret != EXIT_SUCCESS)
       +                die("child finished with error '%d'\n", stat);
       +        exit(EXIT_SUCCESS);
        }
        
        void