--- a/src/INSTALL
+++ b/src/INSTALL
@@ -51,9 +51,27 @@
4.1.2. Building
- Recoll has been built on Linux (redhat7.3, mandriva 2005), FreeBSD and
- Solaris 8. If you build on another system, I would very much welcome
- patches.
+ Recoll has been built on Linux (redhat7.3, mandriva 2005, Fedora Core 3),
+ FreeBSD and Solaris 8. If you build on another system, I would very much
+ welcome patches.
+
+ Depending on the qt configuration on your system, you may have to set the
+ QTDIR and QMAKESPECS variables in your environment:
+
+ * QTDIR should point to the directory above the one that holds the qt
+ include files (ie: qt.h).
+
+ * QMAKESPECS should be set to the name of one of the qt mkspecs
+ subdirectories (ie: linux-g++).
+
+ On many Linux systems, QTDIR is set by the login scripts, and QMAKESPECS
+ is not needed because there is a default link in mkspecs/.
+
+ The Recoll configure script does a better job of checking these variables
+ after release 1.1.1. Before this, unexplained errors will occur during
+ compilation if the environment is not set up. Also, for 1.1.0 the qmake
+ command should be in your PATH (later releases can also find it in
+ $QTDIR/bin).
Normal procedure: