Fix asmjit debug compile

.github/dockerfiles/Dockerfile.64-bit

@@ -15,6 +15,7 @@ WORKDIR /buildroot/otp/
 ENV CFLAGS="-O2 -g -Werror -DwxSTC_DISABLE_MACRO_DEPRECATIONS=1"
 ENV CFLAGS="${CFLAGS} -Wall -Wformat -Wformat=2 -Wno-conversion -Wimplicit-fallthrough \
     -Werror=format-security -Wtrampolines -fsanitize=signed-integer-overflow"
+ENV CXXFLAGS="-Wno-maybe-uninitialized"
 ## OpenSSF recommended CFLAGS, skipped are:
 ##  -Wconversion -Wextra -Wsign-conversion - As we have way too many of these warnings
 ##  -fstrict-flex-arrays=3 -Wbidi-chars=any - As gcc 11 does not support it
@@ -43,6 +44,7 @@ RUN if [ ! -f Makefile ]; then \
 ## Disable -Werror as testcases do not compile with it on
 ENV CFLAGS="-O2 -g"
 ENV LDFLAGS=""
+ENV CXXFLAGS=""
 
 ## Update init.sh with correct env vars
 RUN echo "export MAKEFLAGS=$MAKEFLAGS" > /buildroot/env.sh && \

erts/emulator/Makefile.in

@@ -287,7 +287,7 @@ ifeq ($(FLAVOR),jit)
 CFLAGS  += -DBEAMASM=1
 ENABLE_ALLOC_TYPE_VARS += beamasm
 endif
-CXXFLAGS = $(filter-out -Werror=implicit -Wstrict-prototypes -Wmissing-prototypes -Wdeclaration-after-statement -Werror=maybe-uninitialized,$(CFLAGS)) $(TYPE_CXXFLAGS)
+CXXFLAGS = $(filter-out -Werror=implicit -Wstrict-prototypes -Wmissing-prototypes -Wdeclaration-after-statement,$(CFLAGS)) $(TYPE_CXXFLAGS)
 HCC     = @HCC@
 LD      = @LD@
 DEXPORT = @DEXPORT@