improved linting

linters/cppcheck.h

@@ -0,0 +1,3 @@
+#define CHAR_BIT 8
+#define WITH_OMX
+#define WITH_GPIO

linters/tox.ini

@@ -1,12 +1,12 @@
 [tox]
-envlist = cppcheck-src, cppcheck-python, flake8, pylint, mypy, vulture, htmlhint
+envlist = cppcheck, flake8, pylint, mypy, vulture, htmlhint
 skipsdist = true
 
 [testenv]
 basepython = python3.9
 changedir = /src
 
-[testenv:cppcheck-src]
+[testenv:cppcheck]
 whitelist_externals = cppcheck
 commands = cppcheck \
 			--force \
@@ -18,25 +18,8 @@ commands = cppcheck \
 			--suppress=variableScope \
 			--inline-suppr \
 			--library=python \
-			-DCHAR_BIT=8 \
-			-DWITH_OMX \
-			-DWITH_GPIO \
-		src python
-
-[testenv:cppcheck-python]
-whitelist_externals = cppcheck
-commands = cppcheck \
-			--force \
-			--std=c11 \
-			--error-exitcode=1 \
-			--quiet \
-			--enable=warning,unusedFunction,portability,performance,style \
-			--suppress=assignmentInAssert \
-			--suppress=variableScope \
-			--inline-suppr \
-			--library=python \
-			-DCHAR_BIT=8 \
-		python/ustreamer.c
+			--include=linters/cppcheck.h \
+		src python/ustreamer.c janus/rtp.h janus/rtp.c janus/plugin.c
 
 [testenv:flake8]
 whitelist_externals = bash