Change header paths and include guards to be relative to the "src" directory. r=mmentovai.

http://groups.google.com/group/airbag-dev/msg/cbe061dd563e9d17



git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@10 4c0a9323-5329-0410-9bdc-e9ce6186880e
diff --git a/Makefile.am b/Makefile.am
index 4b7526b..5baf460 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -15,6 +15,9 @@
 # limitations under the License.
 
 
+# This allows #includes to be relative to src/
+AM_CPPFLAGS = -I$(top_srcdir)/src
+
 ## Documentation
 docdir = $(prefix)/share/doc/$(PACKAGE)-$(VERSION)