I've been trying to build the CVS mozilla on Linux and I keep getting this error. Does anyone know where it comes from? undefined reference to `nsTraceRefcnt::LogAddCOMPtr(void *, nsISupports *)' /drives/work/src/mozilla/xpcom/tools/registry/../../../dist/include/nsCOMPtr.h(.gnu.linkonce.t.__rf__Ct8nsCOMPtr1Z19nsIComponentManager+0x40): undefined reference to `nsDebug::PreCondition(char const *, char const *, char const *, int)' /drives/work/src/mozilla/xpcom/tools/registry/../../../dist/include/nsCOMPtr.h(.nsCOMPtr<nsIComponentManager>::gnu.linkonce.t.Assert_NoQueryNeeded(void)+0x7c): undefined reference to `nsDebug::Assertion(char const *, char const *, char const *, int)' /drives/work/src/mozilla/xpcom/tools/registry/../../../dist/include/nsCOMPtr.h(.gnu.linkonce.t.do_QueryInterface(nsISupports *, unsigned int *)+0x28): undefined reference to `nsQueryInterface::nsQueryInterface(nsISupports *, unsigned int *)' /drives/work/src/mozilla/xpcom/tools/registry/../../../dist/include/nsCOMPtr.h(.nsCOMPtr<nsIComponentManager>::gnu.linkonce.t.(nsQueryInterface const &)+0x2d): undefined reference to `nsTraceRefcnt::LogAddCOMPtr(void *, nsISupports *)' collect2: ld returned 1 exit status make[3]: *** [regExport] Error 1 make[3]: Leaving directory `/drives/work/src/mozilla/xpcom/tools/registry' make[2]: *** [install] Error 2 make[2]: Leaving directory `/drives/work/src/mozilla/xpcom/tools' make[1]: *** [install] Error 2 make[1]: Leaving directory `/drives/work/src/mozilla/xpcom' make: *** [install] Error 2 -- Fred