This package requires its patch to be applied before you can install it. Issue the following command to apply the patch: patch -Np1 -i ../libtool-&libtool-patch-version;.patch && Prepare Libtool to be compiled: ./configure --prefix=/usr Continue with compiling the package: make And finish off installing the package: make install patch -Np1 -i ../libtool-&libtool-patch-version;.patch: This patch fixes an incompatibility between Autoconf 2.53 and Libtool 1.4.x. Specifically, the deprecated m4 macro AC_PROVIDE_AC_LIBTOOL is replaced by AC_PROVIDE_ELSEIF.