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, 1 deletions

diff --git a/misc/magicpoint/Makefile b/misc/magicpoint/Makefile
index 11f136f680ee..af407bed82cb 100644
--- a/misc/magicpoint/Makefile
+++ b/misc/magicpoint/Makefile
@@ -14,7 +14,7 @@ LIB_DEPENDS+=	png15:${PORTSDIR}/graphics/png \
 		mng:${PORTSDIR}/graphics/libmng
 RUN_DEPENDS+=	pnmscale:${PORTSDIR}/graphics/netpbm
 
-USE_IMAKE=	yes
+USES=		imake:env
 USE_XORG=	x11 xext xmu xt sm ice xi xtst
 WANT_GNOME=	yes
 GNU_CONFIGURE=	yes
@@ -81,6 +81,7 @@ post-patch:
 		${WRKSRC}/configure
 
 post-configure:
+	(cd ${CONFIGURE_WRKSRC} && ${SETENV} ${MAKE_ENV} ${XMKMF})
 	cd ${WRKSRC}/contrib/xmindpath && \
 		${SH} ${CONFIGURE_SCRIPT} --prefix=${PREFIX}