[devel-README_modular_build] Update the README with instructions for

    building the driver against modular.

1 files changed, 29 insertions, 6 deletions

diff --git a/README b/README
index f9ce2e7..96f5f32 100644
--- a/README
+++ b/README
@@ -23,10 +23,10 @@ http://lists.sourceforge.net/mailman/listinfo/unichrome-users first.
     From the top level, in xf86-video-unichrome/, (the same level as this
     file) run:
 
-	xmkmf <path_to_xc>
-	make Makefiles
-	make
-	make install
+	# xmkmf <path_to_xc>
+	# make Makefiles
+	# make
+	# make install
 
 1.2) Preparing an X tree:
 
@@ -38,6 +38,29 @@ http://lists.sourceforge.net/mailman/listinfo/unichrome-users first.
 
 2) Modular X:
 
-    This is only suited for the X.org 7.x release.
+    This is (of course) only suited for the X.org 7.x release.
 
-    ...
+    Building against modular is a breeze. You should have everything installed
+    for building drivers if and when you want to.
+
+        # ./autogen.sh
+    or
+        # ./autogen.sh --prefix=<...>
+    then
+        # make
+        # make install
+
+    One possible issue can exist here: aclocal might be unable to find the X
+    macros. You will see configure complain with:
+        ./configure: line 20518: XORG_MANPAGE_SECTIONS: command not found
+        ./configure: line 20519: XORG_RELEASE_VERSION: command not found
+
+    What happens is that aclocal is unable to find your xorgversion.m4 and
+    xorg-macros.m4. These are usually found in <prefix>/share/aclocal
+
+    This can be solved by doing the following before running autogen.sh:
+        - permanent solution: add a file named dirlist to your 
+          /usr/share/aclocal/ directory, and add a line with the path for X
+          macros.
+        - temporary solution: run
+          # export ACLOCAL_LOCALDIR="<prefix>/share/aclocal/"