made matita.runtime_base_dir overridable setting MATITA_RUNTIME_BASE_DIR env variable

diff --git a/helm/software/matita/matita.conf.xml.in b/helm/software/matita/matita.conf.xml.in
index f39b84c95db5dd6a85e911cc13602bc7d07c16fc..7d81977b64ab8d80a7e269c8f929c8833cc5f629 100644 (file)
--- a/helm/software/matita/matita.conf.xml.in
+++ b/helm/software/matita/matita.conf.xml.in
@@ -15,6 +15,8 @@
     <!-- Debug only. Stay away. -->
     <!-- <key name="environment_trust">true</key> -->
     <key name="basedir">$(user.home)/.matita</key>
+    <!-- Where support files are installed -->
+    <key name="rt_base_dir">@RT_BASE_DIR@</key>
     <!-- Metadata owner. It will be used to create user-specific tables
     in the SQL database. -->
     <key name="owner">$(user.name)</key>
@@ -57,7 +59,7 @@
     -->
     <key name="prefix">
       cic:/matita/
-      file://@RT_BASE_DIR@/xml/standard-library/
+      file://$(matita.rt_base_dir)/xml/standard-library/
       ro
     </key>
     <key name="prefix">