Hi, i am not sure, if it was an update with latest debian or some changes in latest trunk version of Freeswitch, but since today i am getting the following error when trying to build debian packages: I am using the latest, clean GIT-Version of Freeswitch. [...] Making all in src make[8]: Entering directory `/root/dev/freeswitch/freeswitch/libs/spandsp/src' make[9]: Entering directory `/root/dev/freeswitch/freeswitch/libs/spandsp/src' libtool: compile: gcc -DHAVE_CONFIG_H -I. -I.. -I/usr/include/libxml2 -I/root/dev/freeswitch/freeswitch/libs/tiff-3.8.2/libtiff -DNDEBUG -msse2 -std=gnu99 -ffast-math -Wall -Wunused-variable -Wunused-but-set-variable -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -fvisibility=hidden -DHAVE_VISIBILITY=1 -ggdb3 -O2 -c ademco_contactid.c -fPIC -DPIC -o ademco_contactid.o cc1: error: unrecognized command line option "-Wunused-but-set-variable" make[9]: *** [ademco_contactid.lo] Fehler 1 My GCC-Version is 4.4.5 (Debian stable): root@devel:~/dev# gcc -v Using built-in specs. Target: x86_64-linux-gnu Configured with: ../src/configure -v --with-pkgversion='Debian 4.4.5-8' --with-bugurl=file:///usr/share/doc/gcc-4.4/README.Bugs --enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-4.4 --enable-shared --enable-multiarch --enable-linker-build-id --with-system-zlib --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.4 --libdir=/usr/lib --enable-nls --enable-clocale=gnu --enable-libstdcxx-debug --enable-objc-gc --with-arch-32=i586 --with-tune=generic --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu Thread model: posix gcc version 4.4.5 (Debian 4.4.5-8) Any hints are welcome.... Thanks, Carsten