BSD refinements

Make it easier to compile flashrom under NetBSD and DragonFlyBSD:
 - Use /usr/pkg/ as prefix for includes and linking
 - Use pciutils as include path for the right(tm) libpci

Also, fix date handling in getrevision.sh to work with the various formats for
invoking 'date'. This also uses svn's info --xml output instead of the regular one.

Corresponding to flashrom svn r1742.

Signed-off-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
Tested-by: Idwer Vollering <vidwer@gmail.com>
Acked-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
diff --git a/README b/README
index a096aad..b3e50a6 100644
--- a/README
+++ b/README
@@ -80,11 +80,9 @@
 
  gmake LDFLAGS="-L$pathtolibpci" CC="gcc -I$pathtopciheaders" CFLAGS=-O2
 
-To compile on NetBSD or DragonFly BSD, use:
+To compile on NetBSD or DragonFly BSD (with pciutils, libftdi, libusb installed in /usr/pkg/), use:
 
- ln -s /usr/pkg/include/pciutils pci
- gmake CPPFLAGS="-I. -I/usr/pkg/include" \
-       LDFLAGS="-L/usr/pkg/lib -Wl,-rpath-link,/usr/pkg/lib"
+ gmake
 
 To compile on OpenBSD, use: