diff --git a/tests/Makefile b/tests/Makefile
index 77f7345de4..41dc224061 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -20,7 +20,7 @@ clean:
 	rm -f $(BINS) *.out
 
 run: $(BINS)
-	for bin in $(BINS); do echo "\\033[1m$${bin}\\033[0m"; ./$${bin} test args; done
+	for bin in $(BINS); do echo "# $${bin} #"; "./$${bin}" test args; done
 
 GCCHEAD=\
 	-nostdinc \
@@ -36,4 +36,4 @@ GCCTAIL=\
 	../openlibm/libopenlibm.a
 
 %: %.c
-	gcc -fno-stack-protector $(GCCHEAD) $< $(GCCTAIL) -o $@
+	gcc -fno-stack-protector -Wall $(GCCHEAD) "$<" $(GCCTAIL) -o "$@"
diff --git a/tests/alloc.c b/tests/alloc.c
index a9fee5ee1b..30e59da92a 100644
--- a/tests/alloc.c
+++ b/tests/alloc.c
@@ -12,7 +12,7 @@ int main(int argc, char ** argv) {
 
     char * ptrc = (char *)calloc(256,1);
     printf("calloc %p\n", ptrc);
-    for(int i = 0; i < 256; i++) {
+    for(i = 0; i < 256; i++) {
         ptrc[i] = (char)i;
     }
     free(ptrc);