New USES imake to handle the dependency on imake.

This uses accept 'env' as an argument for ports that do use their own or a different do-configure target.

Modify xmkmf so it accept IMAKECPPFLAGS as default flags for imake and pass it to the called imake.
Modify xorg-cf-files (the FreeBSD.cf configuration file) to allow CppCmd to be overwritten.
Pass CppCmd CcCmd and CplusplusCmd via command line to each call of imake via IMAKECPPFLAGS
Pass IMAKE_DEFINE with the above arguments to MAKE_ARGS so that imake spawned from Makefile generated by a previous
imake also inherit the defined CppCmd CcCmd and CplusplusCmd.
Make imake use devel/tradcpp all the time, so that when buidling with clang we do not depend on gcc's cpp.
Make imake respect CC and CXX
Make imake respect USE_GCC (if set imake will use gcc's cpp).

While here:
- Remove a couple of indefinite articles from comments
- Trim headers
- Fix a couple of ports to build with clang or use: USE_GCC=any
- Fix a now useless redefinition of the extraction chain
- Fix a typo in japanese/Wnn7-lib bundled imake template definitions
- Fix some XMKMF execution with no env specified
- Use options helper in x11/xautolock to simplify the port

1 files changed, 2 insertions, 2 deletions

diff --git a/x11-wm/afterstep/Makefile b/x11-wm/afterstep/Makefile
index e3bd29abbcb5..500973349b09 100644
--- a/x11-wm/afterstep/Makefile
+++ b/x11-wm/afterstep/Makefile
@@ -16,7 +16,7 @@ RUN_DEPENDS=	asclock:${PORTSDIR}/x11-clocks/asclock
 
 NO_LATEST_LINK=	yes
 USE_XORG=	xpm xext x11
-USE_IMAKE=	yes
+USES=		imake
 INSTALL_TARGET=	install install.man
 MANCOMPRESSED=	yes
 MAN1=		afterstep.1 Animate.1 Audio.1 Auto.1 Banner.1 Pager.1 Wharf.1
@@ -42,7 +42,7 @@ post-patch:
 		done
 
 pre-build:
-		@ cd ${WRKSRC}; ${SH} MakeMakefiles
+		@ cd ${WRKSRC}; ${SETENV} ${MAKE_ENV} ${SH} MakeMakefiles
 
 post-install:
 		@ ${MKDIR} ${PREFIX}/lib/X11/afterstep/backgrounds/