Removed the default prefix of /usr, which makes the default prefix
/usr/local.  This breaks backwards compatibility with various
documentation, videos, etc., but conforms with standard Linux
practices, however misguided they may be.  Once the open_pdks
Sky130 distribution becomes a package (which is inevitable, given
how long the installation takes), then the documented /usr/share/
will be correct anyway.

docs.txt

diff --git a/docs.txt b/docs.txt
index c2882b2..13b2c71 100644
--- a/docs.txt
+++ b/docs.txt
@@ -140,16 +140,16 @@
 	make				Generate local staging area
 	sudo make install   		Install onto local system
 
-    which will install to /usr/share/pdk directory.
+    which will install to /usr/local/share/pdk directory.
 
     Users can also elect to install somewhere by giving ./configure the
     `--prefix` and other similar standard ./configure options.
 
     For example;
 
-	    Installing to /usr/local/share/pdk;
+	    Installing to /usr/share/pdk;
 
-		./configure --prefix=/usr/local
+		./configure --prefix=/usr
 		make
 		sudo make install
 

scripts/configure.ac

diff --git a/scripts/configure.ac b/scripts/configure.ac
index 244bd6c..15afffb 100755
--- a/scripts/configure.ac
+++ b/scripts/configure.ac
@@ -1,6 +1,6 @@
 AC_INIT([open_pdks], [1.0], [github.com/RTimothyEdwards/open_pdks])
 
-AC_PREFIX_DEFAULT(/usr)
+# AC_PREFIX_DEFAULT(/usr)
 AC_CONFIG_MACRO_DIR(m4)
 
 ## REQUIRES: https://www.gnu.org/software/autoconf-archive/ax_python_module.html#ax_python_module