diff --git a/src/Makefile b/src/Makefile
index bd16932..114aa1d 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -3,16 +3,16 @@
 ## License.....: MIT
 ##
 
-SHARED                  ?= 0
+SHARED                  ?= 1
 DEBUG                   := 0
 PRODUCTION              := 1
 PRODUCTION_VERSION      := v6.2.0
 ENABLE_CUBIN            ?= 1
 ENABLE_BRAIN            ?= 1
-USE_SYSTEM_LZMA         ?= 0
-USE_SYSTEM_ZLIB         ?= 0
+USE_SYSTEM_LZMA         ?= 1
+USE_SYSTEM_ZLIB         ?= 1
 USE_SYSTEM_OPENCL       ?= 0
-USE_SYSTEM_XXHASH       ?= 0
+USE_SYSTEM_XXHASH       ?= 1
 ## do not change, requires some hacks
 USE_SYSTEM_UNRAR        ?= 0
 
@@ -100,7 +100,7 @@ VERSION_PURE            := $(shell echo "$(VERSION_TAG)" | $(SED) 's/.*v\([\.0-9
 ##
 
 DESTDIR                 ?=
-PREFIX                  ?= /usr/local
+PREFIX                  ?= /usr
 
 INSTALL_FOLDER          ?= $(PREFIX)/bin
 SHARED_ROOT_FOLDER      ?= $(PREFIX)/share
@@ -117,7 +117,7 @@ LIBRARY_DEV_FOLDER      ?= $(LIBRARY_DEV_ROOT_FOLDER)/hashcat
 ifeq ($(USE_SYSTEM_LZMA),0)
 DEPS_LZMA_PATH          := deps/LZMA-SDK/C
 else
-DEPS_LZMA_PATH          := $(LIBRARY_DEV_ROOT_FOLDER)
+DEPS_LZMA_PATH          := /usr/include/clzma
 endif
 
 ifeq ($(USE_SYSTEM_ZLIB),0)
@@ -169,7 +169,7 @@ endif # MSYS2
 ## Misc stuff
 ##
 
-COMPTIME                := $(shell date +%s)
+COMPTIME                := 0
 
 ##
 ## General compiler and linker options
@@ -177,6 +177,7 @@ COMPTIME                := $(shell date +%s)
 
 LFLAGS                  := $(LDFLAGS)
 
+CFLAGS += $(our_CFLAGS)
 ifeq ($(PRODUCTION),0)
 CFLAGS                  += -W
 CFLAGS                  += -Wall
@@ -219,7 +220,7 @@ endif
 ifeq ($(DEBUG),0)
 CFLAGS                  += -O2
 ifneq ($(UNAME),Darwin)
-LFLAGS                  += -s
+LFLAGS                  +=
 endif
 else
 ifeq ($(DEBUG),1)
@@ -245,7 +246,7 @@ CFLAGS                  += -pipe -Iinclude/ -IOpenCL/
 # LZMA
 CFLAGS                  += -I$(DEPS_LZMA_PATH)
 ifeq ($(USE_SYSTEM_LZMA),1)
-LFLAGS                  += -llzmasdk
+LFLAGS                  += -lclzma
 endif
 
 # ZLIB