Major infrastructure changes, part 2.

* Moved helpers, common and triggers dirs into xbps-src, where
  they belong.
* Renamed the templates dir to srcpkgs, it was so redundant before.
* Make it possible to add subpkgs with no restriction in names, for
  example udev now has a subpkgs called "libgudev". Previously
  subpkgs were named "${sourcepkg}-${pkgname}".
* xbps-src: changed to look for template files in current directory.
  That means that most arguments from the targets have been removed.
* xbps-src: added a reinstall target, to remove + install.
* xbps-src: do not overwrite binpkgs by default, skip them.

And more that I forgot because it's a mega-commit that I've been
working for some days already...

--HG--
extra : convert_revision : 0f466878584d1e6895d2a234f07ea1b2d1e61b3e

srcpkgs/unzip/patches/fix_Makefile.diff

@@ -0,0 +1,15 @@
+--- unix/Makefile.orig	2009-03-21 01:54:48.460031655 +0100
++++ unix/Makefile	2009-03-21 01:55:23.230935902 +0100
+@@ -102,9 +102,9 @@ INSTALL_PROGRAM = $(INSTALL)
+ INSTALL_D = mkdir -p
+ # on some systems, manext=l and MANDIR=/usr/man/man$(manext) may be appropriate
+ manext = 1
+-prefix = /usr/local
+-BINDIR = $(prefix)/bin#			where to install executables
+-MANDIR = $(prefix)/man/man$(manext)#	where to install man pages
++DESTDIR = /usr/local
++BINDIR = $(DESTDIR)/usr/bin#			where to install executables
++MANDIR = $(DESTDIR)/usr/share/man/man$(manext)#	where to install man pages
+ INSTALLEDBIN = $(BINDIR)/funzip$E $(BINDIR)/unzip$E $(BINDIR)/unzipsfx$E \
+ 	$(BINDIR)/zipgrep$E $(BINDIR)/zipinfo$E
+ INSTALLEDMAN = $(MANDIR)/funzip.$(manext) $(MANDIR)/unzip.$(manext) \

srcpkgs/unzip/patches/unzipsfx_no_libz.diff

@@ -0,0 +1,27 @@
+$NetBSD: patch-ad,v 1.1 2006/11/03 07:53:55 rillig Exp $
+
+unzipsfx does not need libz, so a special compile rule is needed for it.
+
+--- unix/Makefile.orig	Mon Oct 30 22:45:35 2006
++++ unix/Makefile	Mon Oct 30 22:48:02 2006
+@@ -87,7 +87,7 @@
+ OBJS = $(OBJS1) $(OBJS2) $(OBJS3) $M$O
+ LOBJS = $(OBJS)
+ OBJSDLL = $(OBJS:.o=.pic.o) api.pic.o
+-OBJX = unzipsfx$O $(CRC32)$O crctab_$O crypt_$O extract_$O fileio_$O \
++OBJX = unzipsfx$O crc32_$O crctab_$O crypt_$O extract_$O fileio_$O \
+ 	globals_$O inflate_$O match_$O process_$O ttyio_$O $M_$O
+ LOBJX = $(OBJX)
+ OBJF = funzip$O $(CRC32)$O cryptf$O globalsf$O inflatef$O ttyiof$O
+@@ -306,6 +306,11 @@
+ 	-$(CP) unzip.c unzipsfx.c
+ 	$(CC) -c $(CF) -DSFX unzipsfx.c
+ 	$(RM) unzipsfx.c
++
++crc32_$O:	crc32.c $(UNZIP_H) zip.h			# unzipsfx only
++	-$(CP) crc32.c crc32_.c
++	$(CC) -c $(CF) -DSFX crc32_.c
++	$(RM) crc32_.c
+ 
+ crctab_$O:	crctab.c $(UNZIP_H) zip.h
+ 	-$(CP) crctab.c crctab_.c