Hello to all, I am trying to compile BIRD 1.3.1 only with bgp enabled since I am not interested in the other protocols and I always act on a need-to-have basis. The debug output attached is from the command on a Gentoo system: ( ./configure --with-protocols=bgp && make ) > debug.txt 2>&1 This is my system information: Linux xxx.xxx.xxx 2.6.32.16 #1 SMP Sun Jul 25 21:32:42 UTC 2010 i686 Intel(R) Xeon(R) CPU 5130 @ 2.00GHz GenuineIntel GNU/Linux And this is my gcc environment: Using built-in specs. Target: i686-pc-linux-gnu Configured with: /var/tmp/portage/sys-devel/gcc-4.3.4/work/gcc-4.3.4/configure --prefix=/usr --bindir=/usr/i686-pc-linux-gnu/gcc-bin/4.3.4 --includedir=/usr/lib/gcc/i686-pc-linux-gnu/4.3.4/include --datadir=/usr/share/gcc-data/i686-pc-linux-gnu/4.3.4 --mandir=/usr/share/gcc-data/i686-pc-linux-gnu/4.3.4/man --infodir=/usr/share/gcc-data/i686-pc-linux-gnu/4.3.4/info --with-gxx-include-dir=/usr/lib/gcc/i686-pc-linux-gnu/4.3.4/include/g++-v4 --host=i686-pc-linux-gnu --build=i686-pc-linux-gnu --disable-altivec --disable-fixed-point --enable-nls --without-included-gettext --with-system-zlib --disable-checking --disable-werror --enable-secureplt --disable-multilib --enable-libmudflap --disable-libssp --enable-libgomp --disable-libgcj --with-arch=i686 --enable-languages=c,c++,treelang,fortran --enable-shared --enable-threads=posix --enable-__cxa_atexit --enable-clocale=gnu --with-bugurl=http://bugs.gentoo.org/ --with-pkgversion='Gentoo 4.3.4 p1.0, pie-10.1.5' Thread model: posix gcc version 4.3.4 (Gentoo 4.3.4 p1.0, pie-10.1.5) Note that this also happens on debian-wheezy when trying to configure the source package and rebuild it, on a virtual machine (I can give the output for that as well if needed) . I thank you in advance for any suggestions and apologize if this has been already answered. -- Aris Lambrianidis