diff --git a/tests/Makefile b/tests/Makefile
index eec51a9b..91726c3a 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -135,3 +135,22 @@ scan-build: clean
 sanitize:
 	$(MAKE) clean check XCFLAGS="-fsanitize=address,undefined"
 	$(MAKE) clean check XCFLAGS="-fsanitize=thread -pie -fPIE"
+
+
+#####################################################################################################
+# Test All
+#####################################################################################################
+
+WCFLAGS_CLANG=-Wall -W -pedantic -Wshadow -Wpointer-arith -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wswitch-default -Wswitch-enum -Wcast-align -Wpointer-arith -Wbad-function-cast -Wstrict-overflow=5 -Wstrict-prototypes -Winline -Wundef -Wnested-externs -Wcast-qual -Wshadow -Wunreachable-code -Wstrict-aliasing=2 -Wredundant-decls -Wold-style-definition -Wno-unused-function -ftrapv
+WCFLAGS_CPP=-Wall -W -pedantic -Wshadow -Wpointer-arith -Wcast-qual -Wswitch-default -Wswitch-enum -Wcast-align -Wpointer-arith -Wstrict-overflow=5 -Winline -Wundef -Wcast-qual -Wshadow -Wunreachable-code -Wlogical-op -Wstrict-aliasing=2 -Wredundant-decls -Wno-unused-function -ftrapv
+
+checkall:
+	@$(MAKE) clean ; $(MAKE) check CC="gcc -std=c99"
+	@$(MAKE) clean ; $(MAKE) check CC="gcc -std=c99 -m32"
+	@$(MAKE) clean ; $(MAKE) check CC="gcc -std=c11"
+	@if which clang ; then $(MAKE) clean ; $(MAKE) check CC="clang -std=c99" WCFLAGS="$(WCFLAGS_CLANG)" ; else echo "CLANG not found: SKIP TEST" ; fi
+	@if which g++ ; then $(MAKE) clean ; $(MAKE) check CC="g++ -std=c++11" WCFLAGS="$(WCFLAGS_CPP)" ; else echo "G++ not found: SKIP TEST" ; fi
+	@if which tcc ; then $(MAKE) clean ; $(MAKE) check CC="tcc -std=c99" ; else echo "TCC not found: SKIP TEST" ; fi
+	@for f in /opt/gcc* ; do if test -x "$$f/bin/gcc" ; then $(MAKE) clean ; $(MAKE) check CC="$$f/bin/gcc -std=c99" ; fi ; done
+	@for f in /opt/clang* ; do if test -x "$$f/bin/clang" ; then $(MAKE) clean ; $(MAKE) check CC="$$f/bin/clang -std=c99" WCFLAGS="$(WCFLAGS_CLANG)" ; fi ; done
+