[PATCH] configure.ac: fix botched FREAD_READS_DIRECTORIES check

[PATCH] configure.ac: fix botched FREAD_READS_DIRECTORIES check

[Eric Sunshine]

3adf9fdecf (configure.ac: loosen FREAD_READS_DIRECTORIES test program,
2017-06-14) broke the test program for the FREAD_READS_DIRECTORIES check
by making it syntactically invalid (a dangling ")") and by botching the
type returned from 'main' (a FILE* rather than int). As a consequence,
the test program won't even compile, thus the check fails
unconditionally. Fix these problems.

Reported-by: Jonathan Primrose <jprimros@gmail.com>
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
---

Problem report and discussion:
https://public-inbox.org/git/82c91eac-9dc4-834b-4648-3c4ba45af80d@gmail.com/

 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 7f8415140f..a30d947e2a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -923,7 +923,7 @@ AC_RUN_IFELSE(
 	[AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
 		[[
 		FILE *f = fopen(".", "r");
-		return f)]])],
+		return f != NULL;]])],
 	[ac_cv_fread_reads_directories=no],
 	[ac_cv_fread_reads_directories=yes])
 ])
-- 
2.17.0.484.g0c8726318c