Fix segfault when a source file doesn't exist.

There was a missing NULL check in the code that test-opens files in
both binary and text mode (for font-handling purposes).

1 files changed, 2 insertions, 1 deletions

diff --git a/input.c b/input.c
index 61439b3..be59386 100644
--- a/input.c
+++ b/input.c
@@ -1653,7 +1653,8 @@ paragraph *read_input(input *in, indexdata *idx) {
 		rewind(in->currfp);
 	    }
 	    if (!binary) {
-		fclose(in->currfp);
+                if (in->currfp)
+                    fclose(in->currfp);
 		in->currfp = fopen(in->filenames[in->currindex], "r");
 	    }
 	}