Hi, I'm trying to compile hydrogen on my CCRMA/RedHat PC (Pentium 4) And I get this error: -------------------------------------------------------------------- g++ -DHAVE_CONFIG_H -I. -I. -I.. -I../lib -I/usr/lib/qt-3.1/include -I/usr/X11R6/include -DQT_THREAD_SUPPORT -D_REENTRANT -O3 -c -o PatternEditor.o `test -f 'PatternEditor.cpp' || echo './'`PatternEditor.cpp PatternEditor.cpp: In constructor `PatternEditor::PatternEditor(QWidget*, PatternEditorPanel*)': PatternEditor.cpp:41: `WNoAutoErase' undeclared (first use this function) PatternEditor.cpp:41: (Each undeclared identifier is reported only once for each function it appears in.) make[3]: *** [PatternEditor.o] Error 1 make[3]: Leaving directory `/I/Useful_Stuff/Linux/Audio/hydrogen-0.9.0beta1/hydrogen_gui' make[2]: *** [all-recursive] Error 1 make[2]: Leaving directory `/I/Useful_Stuff/Linux/Audio/hydrogen-0.9.0beta1/hydrogen_gui' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/I/Useful_Stuff/Linux/Audio/hydrogen-0.9.0beta1' make: *** [all] Error 2 -------------------------------------------------------------------- Any suggestions? Thanks in advance for any reply. Peace, ~Jos~