Rename all the arch/OS/platform-related variables in configure.in to make it
clearer what they mean:
- They all have VGCONF_ prefixes now, to indicate they come out of
  configure.in (and are clearly distinguished from the VGA_/VGO_/VGP_
  #defines passed in to C files).
- The ones that refer to the primary *or* secondary platform have _INCLUDES_
  in them.
- The ones that are in all-caps have a _CAPS suffix.

So, for example, what was VGP_X86_LINUX is now
VGCONF_PLATFORMS_INCLUDE_X86_LINUX, which is more verbose but also a lot
clearer.  The names of the #defines used in the C files (VGA_x86, VGO_linux,
etc) are unchanged.

cputest.c: changed to reflect the Valgrind installation's capabilities,
rather than the machine's capabilities.  In particular, if
--enable-only32bit is used on a 64-bit machine, then this program will claim
to only support 32-bits.  Also use the VGA/VGO/VGP macros which are clearer
than the __i386__ ones.  (This is partially merged from the DARWIN branch.)

configure.in: clean up the comments, distinguish different sections more
clearly, and generally make it more readable.

valgrind.pc.in: try to make this more accurate.  I doubt anyone's using it.
It doesn't appear to be set up to handle dual-architecture builds.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@9031 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/valgrind.pc.in b/valgrind.pc.in
index 6246b92..34a2407 100644
--- a/valgrind.pc.in
+++ b/valgrind.pc.in
@@ -2,15 +2,15 @@
 exec_prefix=@exec_prefix@
 libdir=@libdir@
 includedir=@includedir@/valgrind
-arch=@VG_ARCH_PRI@
-os=@VG_OS@
-platform=@VG_PLATFORM_PRI@
+arch=@VGCONF_ARCH_PRI@
+os=@VGCONF_OS@
+platform=@VGCONF_ARCH_PRI@-@VGCONF_OS@
 valt_load_address=@VALT_LOAD_ADDRESS@
 
 Name: Valgrind
 Description: A dynamic binary instrumentation framework
 Version: @VERSION@
 Requires:
-Libs: -L${libdir}/valgrind/@VG_PLATFORM_PRI@ -lcoregrind -lvex -lgcc
+Libs: -L${libdir}/valgrind/@VGCONF_ARCH_PRI@-@VGCONF_OS@ -lcoregrind -lvex -lgcc
 Cflags: -I${includedir}