Here's a trivial patch to add some information to make files that
I could have used when I was customizing my build.
diff --rec --unif --new-file exim-4.52/scripts/Configure-Makefile exim/scripts/Configure-Makefile
--- exim-4.52/scripts/Configure-Makefile 2005-07-01 11:09:15.000000000 +0000
+++ exim/scripts/Configure-Makefile 2005-09-03 21:51:15.000000000 +0000
@@ -146,6 +146,7 @@
# Finally, join on the generic base make file, which contains the actual
# rules and stuff.
+echo "# From ../OS/Makefile-Base"
cat ../OS/Makefile-Base >> $mft || exit 1
# If the new makefile is the same as the existing one, say so, and just
diff --rec --unif --new-file exim-4.52/src/EDITME exim/src/EDITME
--- exim-4.52/src/EDITME 2005-07-01 11:09:15.000000000 +0000
+++ exim/src/EDITME 2005-09-03 22:08:54.000000000 +0000
@@ -184,6 +184,12 @@
# THESE ARE THINGS YOU PROBABLY WANT TO SPECIFY #
###############################################################################
+# If you need extra header file search paths on all compiles, put the -I
+# options in INCLUDE. If you want the extra searches only for certain
+# parts of the build, see more specific xxx_INCLUDE variables below.
+
+# INCLUDE=-I/example/include
+
# You need to specify some routers and transports if you want the Exim that you
# are building to be capable of delivering mail. You almost certainly need at
# least one type of lookup. You should consider whether you want to build
