When CFLAGS are set in /etc/make.conf httping fails to build.

Fix: Apply this patch in the httping directory and rebuild the port:
	patch -p1 < /path-to-patch/httping.patch
	
How-To-Repeat: 	Set CFLAGS in /etc/make.conf like:
	CFLAGS= -O -pipe

	Build net/httping:
	/usr/ports/net/httping/> make install clean
	===>  Extracting for httping-1.2.5
	=> MD5 Checksum OK for httping-1.2.5.tgz.
	=> SHA256 Checksum OK for httping-1.2.5.tgz.
	===>  Patching for httping-1.2.5
	===>  Configuring for httping-1.2.5
	===>  Building for httping-1.2.5
	cc -O -pipe  -c mem.c
	cc -O -pipe  -c http.c
	cc -O -pipe  -c io.c
	cc -O -pipe  -c str.c
	cc -O -pipe  -c error.c
	cc -O -pipe  -c utils.c
	cc -O -pipe  -c main.c
	main.c: In function `version':
	main.c:53: error: syntax error before "VERSION"
	main.c: In function `main':
	main.c:422: error: syntax error before "VERSION"
	*** Error code 1

	Stop in /usr/ports/net/httping/work/httping-1.2.5.
	*** Error code 1

	Stop in /usr/ports/net/httping.