Make the ./configure script simpler, more robust, and 23 lines shorter:

* three rather than four arguments for singletest()
* let runtest() support testing two variants of compiler flags
* always report a failed test, even when another test follows
* run all tests before detecting fatal conditions
* rename HAVE_CMSG_XPG42 to NEED_XPG4_2 for consistency
* consistently use braces for shell variable interpolation
* drop archaic "X${" syntax and unusual "==" in string comparisons

1 files changed, 1 insertions, 1 deletions

diff --git a/mandocd.c b/mandocd.c
index a0aacc97..9d07857c 100644
--- a/mandocd.c
+++ b/mandocd.c
@@ -17,7 +17,7 @@
  */
 #include "config.h"
 
-#if HAVE_CMSG_XPG42
+#if NEED_XPG4_2
 #define _XPG4_2
 #endif