Update appveyor to not check dev branch

.appveyor.yml

@@ -21,6 +21,10 @@ environment:
       BASH: C:\msys64\usr\bin\bash
       CC: gcc
 
+branches:
+  except:
+    - hash-mode-plugin
+
 # if we have too many commits at the same time, we might need to download more than just the last commit for appveyor to succeed
 # otherwise we get the error: "fatal: reference is not a tree <commit>"
 clone_depth: 15

src/Makefile

@@ -540,13 +540,14 @@ endif
 ##
 
 MODULE_DEPEND := src/bitops.c src/convert.c src/interface.c src/shared.c
+
 MODULES_SRC   := $(wildcard modules/*.c)
-MODULES       := $(patsubst %.c, %.so, $(MODULES_SRC))
+MODULES_LIB   := $(patsubst %.c, %.so, $(MODULES_SRC))
 
 modules/module_%.so: modules/module_%.c
 	$(CC)    $(CFLAGS_NATIVE) $< -o $@ -shared -fPIC $(MODULE_DEPEND)
 
-modules: $(MODULES)
+modules: $(MODULES_LIB)
 
 ##
 ## cross compiled hashcat