Improve static analyzer report

tests/Makefile

@@ -254,9 +254,9 @@ sanitize:
 .c.analyzer:
 	awk '/START_COVERAGE/ { printit=1} (printit == 0) { print }' $< > $<.first.c
 	awk '  printit { print } /END_COVERAGE/ { printit=1}' $< > $<.end.c
-	$(CC) $(CPPFLAGS) -E -DNDEBUG -DWITHIN_COVERAGE $< |grep -v '^#' |awk ' /END_COVERAGE/ { printit=0} printit { print } /START_COVERAGE/ { printit=1 }' |perl -p -e "s/;(?![\"'])/;\n/g ; s/}(?![\"'])/}\n/g ; s/{(?![\"'])/{\n/g" > $<.middle.c
+	$(CC) $(CPPFLAGS) -E -DWITHIN_ANALYZER $< |grep -v '^#' |awk ' /END_COVERAGE/ { printit=0} printit { print } /START_COVERAGE/ { printit=1 }' |perl -p -e "s/;(?![\"'])/;\n/g ; s/}(?![\"'])/}\n/g ; s/{(?![\"'])/{\n/g" > $<.middle.c
 	cat $<.first.c $<.middle.c $<.end.c > $<.c
-	$(CC) $(CPPFLAGS) -fanalyzer -Wall -W -Wno-analyzer-malloc-leak -O2 -g $<.c -o $<.exe 2> `basename $< .c`.analyzer $(LDFLAGS)
+	$(CC) $(CPPFLAGS) -fanalyzer -Wall -W -Wno-analyzer-malloc-leak -Wno-stringop-truncation -O2 -g $<.c -o $<.exe 2> `basename $< .c`.analyzer $(LDFLAGS)
 	$(RM) $<.first.c $<.end.c $<.middle.c $<.c $<.exe
 
 analyze:

tests/coverage.h

@@ -160,6 +160,28 @@ static void assert(int cond)
 {
    if (!cond) abort();
 }
+#elif defined(WITHIN_ANALYZER)
+/* For analyzer build, do not expand other likes NULL, etc. */
+#undef assert
+#undef M_STATIC_FAILURE
+#undef NULL
+#undef M_LIKELY
+#undef M_UNLIKELY
+#undef M_MEMORY_FULL
+#undef M_SWAP
+#undef NDEBUG
+#undef atomic_init
+#undef atomic_load
+#undef atomic_store
+#undef atomic_compare_exchange_weak
+#undef atomic_compare_exchange_strong
+#undef atomic_fetch_add
+#undef atomic_fetch_sub
+#undef M_CONST_CAST
+#undef M_ASSIGN_CAST
+#undef M_CHECK_DEFAULT_TYPE
+#undef M_CHECK_SAME
+#undef isspace
 #else
 /* For normal builds, empty macros which does nothing */
 #define START_COVERAGE