Hi, when I compile (cvs-version) with gcc3.0.3 the executable fails with SIGSEGV in sanei_debug.h line 157. No problems when I compile with gcc 2.8.1 Is this a compiler-bug or could there be something wrong with the code? I've made a screenshot of debugger-windows. see: http://home.tiscalinet.de/fbakan/temp/303.png Franz