Index: b/src/widgets/NumericTextCtrl.cpp =================================================================== --- a/src/widgets/NumericTextCtrl.cpp 2020-06-19 17:16:47.000000000 +0200 +++ b/src/widgets/NumericTextCtrl.cpp 2020-06-28 11:27:53.709676198 +0200 @@ -654,6 +654,7 @@ static const BuiltinFormatString Bandwid case NumericConverter::BANDWIDTH: return WXSIZEOF(BandwidthConverterFormats_); } + return WXSIZEOF(BandwidthConverterFormats_); } } Index: b/lib-src/libnyquist/nyquist/xlisp/xlbfun.c =================================================================== --- a/lib-src/libnyquist/nyquist/xlisp/xlbfun.c 2020-06-19 17:16:47.000000000 +0200 +++ b/lib-src/libnyquist/nyquist/xlisp/xlbfun.c 2020-06-28 11:27:53.773678563 +0200 @@ -603,7 +603,10 @@ LVAL xcleanup(void) { xllastarg(); xlcleanup(); - /* compiler might (wrongly) complain there is no return value */ + /* this point will never be reached because xlcleanup() does a + longjmp(). The return is added to avoid false positive + error messages from static analyzers and compilers */ + return (NIL); } /* xtoplevel - special form 'top-level' */ Index: b/lib-src/portsmf/allegro.cpp =================================================================== --- a/lib-src/portsmf/allegro.cpp 2020-06-19 17:16:47.000000000 +0200 +++ b/lib-src/portsmf/allegro.cpp 2020-06-28 12:38:54.119640838 +0200 @@ -2885,6 +2885,9 @@ Alg_event_ptr &Alg_seq::operator[](int i tr++; } assert(false); // out of bounds + Alg_event_ptr ab_track; + return ab_track; // Fix false positive error: control reaches end of non-void function [-Werror=return-type] + // Ignores the assert A gcc bug? } #pragma warning(default: 4715) Index: b/lib-src/libnyquist/nyquist/cmupv/src/cmupv.c =================================================================== --- a/lib-src/libnyquist/nyquist/cmupv/src/cmupv.c 2020-06-19 17:16:47.000000000 +0200 +++ b/lib-src/libnyquist/nyquist/cmupv/src/cmupv.c 2020-06-28 11:54:14.043499973 +0200 @@ -596,6 +596,7 @@ double pv_get_effective_pos(Phase_vocode return -(pv->ratio * pv->fftsize / 2.0); } else { // I can't think of any other case. assert(FALSE); + return -(pv->ratio * pv->fftsize / 2.0); //Another false positive ignoring assert as a return value } }