+ --disable-libtool-version
+ when using --with-libtool, control how the major/minor version numbers
+ are used for constructing the library name.
+
+ The default uses the -version-number feature of libtool, which makes
+ the library names compatible (though not identical) with the standard
+ build using --with-shared.
+
+ Use --disable-libtool-version to use the libtool -version-info feature.
+ This corresponds to the setting used before patch 20100515.
+