[hackers] [scc] [cc1] Avoid recovery in elseclause || Roberto E. Vargas Caballero

[git]

commit b2e2403705ee71f141db8b9a4bac947ce3116f1d
Author:     Roberto E. Vargas Caballero <k...@shike2.com>
AuthorDate: Mon Aug 1 16:05:01 2016 +0200
Commit:     Roberto E. Vargas Caballero <k...@shike2.com>
CommitDate: Mon Aug 1 16:05:01 2016 +0200

    [cc1] Avoid recovery in elseclause
    
    We do not want to recover in any cpp function, because we are out
    of synchronization at that moment.

diff --git a/cc1/cpp.c b/cc1/cpp.c
index 53daa3c..80131f7 100644
--- a/cc1/cpp.c
+++ b/cc1/cpp.c
@@ -652,8 +652,10 @@ elseclause(void)
 {
        int status;
 
-       if (cppctx == 0)
-               error("#else without #ifdef/ifndef");
+       if (cppctx == 0) {
+               cpperror("#else without #ifdef/ifndef");
+               return;
+       }
 
        status = (ifstatus[cppctx-1] ^= 1);
        cppoff += (status) ? -1 : 1;