index-pack: work around thread-unsafe pread()

diff --git a/builtin/gc.c b/builtin/gc.c
index c14190f840b0427820ebf69b209d86f0a21c62b7..c19545d49e217400ee1736183c870557b9c9d54b 100644 (file)
--- a/builtin/gc.c
+++ b/builtin/gc.c
@@ -16,6 +16,7 @@
 #include "run-command.h"
 #include "sigchain.h"
 #include "argv-array.h"
+#include "commit.h"
 
 #define FAILED_RUN "failed to run %s"
 
@@ -222,7 +223,7 @@ static const char *lock_repo_for_gc(int force, pid_t* ret_pid)
                        time(NULL) - st.st_mtime <= 12 * 3600 &&
                        fscanf(fp, "%"PRIuMAX" %127c", &pid, locking_host) == 2 &&
                        /* be gentle to concurrent "gc" on remote hosts */
-                       (strcmp(locking_host, my_host) || !kill(pid, 0));
+                       (strcmp(locking_host, my_host) || !kill(pid, 0) || errno == EPERM);
                if (fp != NULL)
                        fclose(fp);
                if (should_exit) {