Compile adapter test/example only if the required headers are available (fixes #391915).

Original commit message from CVS:
* configure.ac:
* tests/examples/Makefile.am:
Compile adapter test/example only if the required headers are
available (fixes #391915).

ChangeLog

@@ -1,3 +1,10 @@
+2007-01-02  Tim-Philipp Müller  <tim at centricular dot net>
+
+	* configure.ac:
+	* tests/examples/Makefile.am:
+	  Compile adapter test/example only if the required headers are
+	  available (fixes #391915).
+
 2007-01-01  David Schleef  <ds@schleef.org>
 
 	* gst/gstplugin.c:

configure.ac

@@ -268,8 +268,17 @@ AC_HEADER_STDC
 
 dnl Check for ucontext.h
 AC_CHECK_HEADERS([ucontext.h])
+
+dnl Check for sys/socket.h
 AC_CHECK_HEADERS([sys/socket.h], HAVE_SYS_SOCKET_H=yes)
 AM_CONDITIONAL(HAVE_SYS_SOCKET_H, test "x$HAVE_SYS_SOCKET_H" = "xyes")
+
+dnl check for sys/times.h for tests/examples/adapter/
+AC_CHECK_HEADERS([sys/times.h], HAVE_SYS_TIMES_H=yes)
+AC_CHECK_HEADERS([unistd.h], HAVE_UNISTD_H=yes)
+AM_CONDITIONAL(HAVE_SYS_TIMES_H_AND_UNISTD_H, test "x$HAVE_SYS_TIMES_H" = "xyes" -a "x$HAVE_UNISTD_H" = "xyes")
+
+dnl Check for process.h for getpid() on win32
 AC_CHECK_HEADERS([process.h])
 
 dnl Check for sys/utsname.h for uname

tests/examples/Makefile.am

@@ -10,13 +10,19 @@ else
 GST_PARSE_DIRS = launch
 endif
 
+# adapter test needs sys/times.h and unistd.h
+if HAVE_SYS_TIMES_H_AND_UNISTD_H
+  ADAPTER_TEST_DIR = adapter
+else
+  ADAPTER_TEST_DIR =
+endif
+
 always_dirs = \
-	controller			\
-	helloworld			\
-	manual                          \
-	metadata                        \
-	queue				\
-	adapter
+	controller \
+	helloworld \
+	manual     \
+	metadata   \
+	queue
 
 #appreader
 #cutter
@@ -36,7 +42,8 @@ always_dirs = \
 
 SUBDIRS = 				\
 	$(always_dirs)			\
+	$(ADAPTER_TEST_DIR)		\
 	$(GST_PARSE_DIRS)		\
 	$(GST_LOADSAVE_DIRS)
 
-DIST_SUBDIRS = $(always_dirs) xml typefind launch
+DIST_SUBDIRS = $(always_dirs) adapter xml typefind launch