Add the -C command-line option, which allows arbitrary \cfg

[sgt/halibut] / error.c

diff --git a/error.c b/error.c
index bf16504..5819e00 100644 (file)
--- a/error.c
+++ b/error.c
@@ -211,7 +211,9 @@ static void do_error(int code, va_list ap) {
     if (flags & PREFIX)
        fputs("halibut: ", stderr);
     if (flags & FILEPOS) {
-       fprintf(stderr, "%s:%d:", fpos.filename, fpos.line);
+       fprintf(stderr, "%s:", fpos.filename);
+       if (fpos.line > 0)
+           fprintf(stderr, "%d:", fpos.line);
        if (fpos.col > 0)
            fprintf(stderr, "%d:", fpos.col);
        fputc(' ', stderr);