X-Git-Url: https://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=tools%2Fccanlint%2Ftests%2Freduce_features.c;h=183d798f7bd501b8b9eaed8e8ce9a58d52e43b69;hp=de817d655aa1342da22c2228ba55ac138cd58ba8;hb=758ab1f402b4af3cccac09548b709deca17ef930;hpb=0959991a0cae77bd404dee266aaf0667e51a459e

diff --git a/tools/ccanlint/tests/reduce_features.c b/tools/ccanlint/tests/reduce_features.c
index de817d65..183d798f 100644
--- a/tools/ccanlint/tests/reduce_features.c
+++ b/tools/ccanlint/tests/reduce_features.c
@@ -173,10 +173,10 @@ static void do_reduce_features(struct manifest *m,
 		hdr = talloc_asprintf_append
 			(hdr, "#undef %s\n#define %s 0\n", sym, sym);
 	}
-	if (mkdir("reduced-features", 0700) != 0)
+	if (mkdir("reduced-features", 0700) != 0 && errno != EEXIST)
 		err(1, "Creating reduced-features directory");
 
-	fd = open("reduced-features/config.h", O_EXCL|O_CREAT|O_RDWR, 0600);
+	fd = open("reduced-features/config.h", O_TRUNC|O_CREAT|O_RDWR, 0600);
 	if (fd < 0)
 		err(1, "Creating reduced-features/config.h");
 	if (!write_all(fd, hdr, strlen(hdr)))