examples: Guard include config.h with HAVE_CONFIG_H

examples/client.c

@@ -26,6 +26,10 @@
  * This program is written to show how to use nghttp2 API in C and
  * intentionally made simple.
  */
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif /* !HAVE_CONFIG_H */
+
 #include <stdint.h>
 #include <stdlib.h>
 #include <unistd.h>
@@ -40,7 +44,6 @@
 #include <stdio.h>
 #include <assert.h>
 
-#include <config.h>
 #include <nghttp2/nghttp2.h>
 
 #include <openssl/ssl.h>

examples/deflate.c

@@ -22,7 +22,10 @@
  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
+#ifdef HAVE_CONFIG_H
 #include <config.h>
+#endif /* !HAVE_CONFIG_H */
+
 #include <stdio.h>
 #include <string.h>
 

examples/libevent-client.c

@@ -22,8 +22,11 @@
  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
-#include <sys/types.h>
+#ifdef HAVE_CONFIG_H
 #include <config.h>
+#endif /* !HAVE_CONFIG_H */
+
+#include <sys/types.h>
 #include <unistd.h>
 #include <sys/socket.h>
 #include <netinet/in.h>

examples/libevent-server.c

@@ -22,7 +22,10 @@
  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
+#ifdef HAVE_CONFIG_H
 #include <config.h>
+#endif /* !HAVE_CONFIG_H */
+
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <netdb.h>

examples/tiny-nghttpd.c

@@ -27,7 +27,11 @@
  * overhead of underlying I/O library (e.g., libevent, Boost ASIO).
  */
 #define _GNU_SOURCE
+
+#ifdef HAVE_CONFIG_H
 #include <config.h>
+#endif /* !HAVE_CONFIG_H */
+
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <sys/stat.h>