X-Git-Url: https://git.notmuchmail.org/git?p=notmuch;a=blobdiff_plain;f=INSTALL;h=e51b397cc2a9d77a56424074775dfcdaf4b5abfb;hp=5a63211d26ee076fbfde466386f5ffb75e1f09c3;hb=ae13d612c14f654d4bc12c93481227e4d24fda82;hpb=1b10c32a5291f6f540f69bb7d4fb753937e23805

diff --git a/INSTALL b/INSTALL
index 5a63211d..e51b397c 100644
--- a/INSTALL
+++ b/INSTALL
@@ -9,10 +9,14 @@ sequence of:
 	make
 	sudo make install
 
-You can even skip the configure step if all of the dependencies of
-Notmuch are satisfied. If they are not, the configure script will
-notice that and provide instructions on where to obtain the necessary
-dependencies.
+In fact, if you don't plan to pass any arguments to the configure
+script, then you can skip that step and just start with "make", (which
+will call configure for you). See this command:
+
+	./configure --help
+
+for detailed documentation of the things you can control at the
+configure stage.
 
 Dependencies
 ------------
@@ -28,6 +32,13 @@ which are each described below:
 
 	Xapian is available from http://xapian.org
 
+	Note: Notmuch will work best with Xapian 1.0.18 (or later) or
+	Xapian 1.1.4 (or later). Previous versions of Xapian (whether
+	1.0 or 1.1) had a performance bug that made notmuch very slow
+	when modifying tags. This would cause distracting pauses when
+	reading mail while notmuch would wait for Xapian when removing
+	the "inbox" and "unread" tags from messages in a thread.
+
 	GMime 2.4
 	---------
 	GMime 2.4 provides decoding of MIME email messages for Notmuch.
@@ -49,16 +60,19 @@ which are each described below:
 
 	Talloc is available from http://talloc.samba.org/
 
-On a modern, package-based operating system such as Debian, you can
-install all of the dependencies with the following simple command
-line:
+On a modern, package-based operating system you can install all of the
+dependencies with a simple simple command line. For example:
+
+  For Debian and similar:
 
         sudo apt-get install libxapian-dev libgmime-2.4-dev libtalloc-dev
 
-On other systems, a similar command can be used, but the details of
-the package names may be different, (such as "devel" in place of
-"dev").
+  For Fedora and similar:
+
+	sudo yum install xapian-core-devel gmime-devel libtalloc-devel
 
+On other systems, a similar command can be used, but the details of
+the package names may be different.