sudo apt-get install libxapian-dev libgmime-2.4-dev libtalloc-dev
+Or on Fedora or other RPM-based systems:
+
+ 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, (such as "devel" in place of "dev").
sudo apt-get install pkg-config
+Or:
+ sudo yum install pkgconfig
+
But if pkg-config is not available for your system, then you will need
to modify the configure script to manually set the cflags and ldflags
variables to the correct values to link against each library in each