Fix: Makefile must use tabs instead of spaces

Makefile

@@ -56,8 +56,8 @@ endif
 
 # only set main compile options if none were chosen
 CFLAGS += -W -Wall -O2 -D$(TARGET_OS) -Iinclude $(COPT) -DUSE_STACK_SIZE=102400
-
-LIBS = -lpthread -lm
+
+LIBS = -lpthread -lm
 
 ifdef WITH_DEBUG
   CFLAGS += -g -DDEBUG_ENABLED
@@ -71,10 +71,10 @@ ifdef WITH_CPP
 else
   LCC = $(CC)
 endif
-
-ifdef WITH_LUA_SHARED
-  WITH_LUA = 1
-endif
+
+ifdef WITH_LUA_SHARED
+  WITH_LUA = 1
+endif
 
 ifdef WITH_LUA
   include resources/Makefile.in-lua
@@ -85,10 +85,10 @@ ifdef WITH_IPV6
 endif
 
 ifdef WITH_WEBSOCKET
-  CFLAGS += -DUSE_WEBSOCKET
-  ifdef WITH_LUA
-    CFLAGS += -DUSE_TIMERS
-    LIBS += -lrt
+  CFLAGS += -DUSE_WEBSOCKET
+  ifdef WITH_LUA
+    CFLAGS += -DUSE_TIMERS
+    LIBS += -lrt
   endif
 endif
 
@@ -119,10 +119,10 @@ endif
 
 ifeq ($(TARGET_OS),LINUX)
   CAN_INSTALL = 1
-endif
-
-ifdef WITH_LUA_SHARED
-  LIBS += -llua5.2
+endif
+
+ifdef WITH_LUA_SHARED
+  LIBS += -llua5.2
 endif
 
 ifneq (, $(findstring MINGW32, $(UNAME)))
@@ -165,7 +165,7 @@ help:
 	@echo "   NO_CGI                disable CGI support"
 	@echo "   NO_SSL                disable SSL functionality"
 	@echo "   NO_SSL_DL             link against system libssl library"
-    @echo "   NO_FILES              do not serve files from a directory"
+	@echo "   NO_FILES              do not serve files from a directory"
 	@echo "   MAX_REQUEST_SIZE      maximum header size, default 16384"
 	@echo ""
 	@echo " Variables"