[hackers] [scc] [driver] In cpp mode without pathname, read stdin || Quentin Rameau

[git]

commit c3a50031fc81663f985a3abfc0efa2c0ea3ee5eb
Author:     Quentin Rameau <quinq@fifth.space>
AuthorDate: Mon Mar 13 12:32:37 2017 +0100
Commit:     Quentin Rameau <quinq@fifth.space>
CommitDate: Fri Mar 17 10:18:33 2017 +0100

    [driver] In cpp mode without pathname, read stdin

diff --git a/driver/posix/scc.c b/driver/posix/scc.c
index cdfdb38..038bdcd 100644
--- a/driver/posix/scc.c
+++ b/driver/posix/scc.c
@@ -281,6 +281,8 @@ toolfor(char *file)
                        return LD;
                if (!strcmp(dot, ".a"))
                        return LD;
+       } else if (!strcmp(file, "-")) {
+               return CC1;
        }
 
        die("scc: do not recognize filetype of %s", file);
@@ -504,6 +506,9 @@ operand:
        for (; *argv; --argc, ++argv)
                goto operand;
 
+       if (Eflag && linkchain.n == 0)
+               newitem(&linkchain, "-");
+
        if (Eflag && Mflag ||
             (Eflag || Mflag) && (Sflag || kflag) ||
            linkchain.n == 0 ||