REQUIREMENTS To compile the OTR library and toolkit, you'll need at least: - libgpg-error 1.0 [ftp://ftp.gnupg.org/gcrypt/libgpg-error/] - libgcrypt 1.2.0 [ftp://ftp.gnupg.org/gcrypt/libgcrypt/] If you install these with a package manager, you'll probably need the -dev or -devel versions of the packages. On Fedora, these packages are: libgpg-error-devel libgcrypt-devel On Debian (testing or unstable), they are: libgpg-error-dev libgcrypt11-dev COMPILING If you're got a CVS copy, you will need to regenerate the configure script using: autoreconf -s -i Once you have the configure script (which comes with the source deistribution), run it with the "--with-pic" option, as well as any other options that may be necessary for your system. Some examples: Linux: ./configure --with-pic --prefix=/usr --mandir=/usr/share/man NETBSD: CPPFLAGS="-I/usr/pkg/include" LDFLAGS="-R/usr/pkg/lib -L/usr/pkg/lib" \ ./configure --with-pic --prefix=/usr/pkg mingw cross-compiler from Debian Linux: ./configure --with-pic --build=`./config.guess` --host=i586-mingw32msvc \ --prefix=/usr/i586-mingw32msvc Once the configure script writes a Makefile, you should be able to just run "make". INSTALLATION You should be able to simply do "make install". If you want to install somewhere other than / (this is useful for package creators), use something like "make DESTDIR=/path/to/install/to install".