Fix incorrectly placed comma (,).

configure

@@ -684,6 +684,7 @@ infodir
 docdir
 oldincludedir
 includedir
+runstatedir
 localstatedir
 sharedstatedir
 sysconfdir
@@ -766,6 +767,7 @@ datadir='${datarootdir}'
 sysconfdir='${prefix}/etc'
 sharedstatedir='${prefix}/com'
 localstatedir='${prefix}/var'
+runstatedir='${localstatedir}/run'
 includedir='${prefix}/include'
 oldincludedir='/usr/include'
 docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
@@ -1018,6 +1020,15 @@ do
   | -silent | --silent | --silen | --sile | --sil)
     silent=yes ;;
 
+  -runstatedir | --runstatedir | --runstatedi | --runstated \
+  | --runstate | --runstat | --runsta | --runst | --runs \
+  | --run | --ru | --r)
+    ac_prev=runstatedir ;;
+  -runstatedir=* | --runstatedir=* | --runstatedi=* | --runstated=* \
+  | --runstate=* | --runstat=* | --runsta=* | --runst=* | --runs=* \
+  | --run=* | --ru=* | --r=*)
+    runstatedir=$ac_optarg ;;
+
   -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
     ac_prev=sbindir ;;
   -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
@@ -1155,7 +1166,7 @@ fi
 for ac_var in	exec_prefix prefix bindir sbindir libexecdir datarootdir \
 		datadir sysconfdir sharedstatedir localstatedir includedir \
 		oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
-		libdir localedir mandir
+		libdir localedir mandir runstatedir
 do
   eval ac_val=\$$ac_var
   # Remove trailing slashes.
@@ -1308,6 +1319,7 @@ Fine tuning of the installation directories:
   --sysconfdir=DIR        read-only single-machine data [PREFIX/etc]
   --sharedstatedir=DIR    modifiable architecture-independent data [PREFIX/com]
   --localstatedir=DIR     modifiable single-machine data [PREFIX/var]
+  --runstatedir=DIR       modifiable per-process data [LOCALSTATEDIR/run]
   --libdir=DIR            object code libraries [EPREFIX/lib]
   --includedir=DIR        C header files [PREFIX/include]
   --oldincludedir=DIR     C header files for non-gcc [/usr/include]
@@ -5493,7 +5505,7 @@ if ${ac_cv_lib_dispatch_dispatch_get_main_queue_eventfd_np+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
-LIBS="-ldispatch as_fn_error $? "Could not find the Grand Central Dispatch headers." "$LINENO" 5 $LIBS"
+LIBS="-ldispatch  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -5534,12 +5546,17 @@ else
   if test "x$with_gcd" = "xyes"; then :
   as_fn_error $? "Compatible libdispatch not found for GCD support!" "$LINENO" 5
 fi
+
 fi
 
+else
+  as_fn_error $? "Could not find the Grand Central Dispatch headers." "$LINENO" 5
+
 fi
 
 done
 
+
 fi
 
 #---

configure.ac

@@ -11,7 +11,7 @@ if test -n "$GNUSTEP_MAKEFILES"; then
   # Use config.guess, config.sub and install-sh provided by gnustep-make
   #--------------------------------------------------------------------
   AC_CONFIG_AUX_DIR($GNUSTEP_MAKEFILES)
-  
+
   #--------------------------------------------------------------------
   # Determine the host, build, and target systems
   #--------------------------------------------------------------------
@@ -136,11 +136,14 @@ AC_ARG_WITH([gcd],
     [Explicitly compiles without Grand Central Dispatch support. Configure will attempt to find a compatible library, use this option if you do not wish to have the support.  The opposite option, --with-gcd, is also supported and should be used if Grand Central Dispatch support is absolutely required.  A compatible library will required (http://www.nickhutchinson.me/libdispatch).])],
   [], [with_gcd=maybe])
 AS_IF([test "x$with_gcd" != xno],
-  [AC_CHECK_HEADERS([dispatch/dispatch.h],
-    [AC_CHECK_LIB([dispatch], dispatch_get_main_queue_eventfd_np, [],
+  AC_CHECK_HEADERS([dispatch/dispatch.h],
+    AC_CHECK_LIB([dispatch], [dispatch_get_main_queue_eventfd_np], ,
       AS_IF([test "x$with_gcd" = "xyes"],
-        AC_MSG_ERROR([Compatible libdispatch not found for GCD support!])),
-    AC_MSG_ERROR([Could not find the Grand Central Dispatch headers.]))])])
+        AC_MSG_ERROR([Compatible libdispatch not found for GCD support!]))
+    ),
+    AC_MSG_ERROR([Could not find the Grand Central Dispatch headers.])
+  )
+)
 
 #---
 # Check for the Objective-C runtime