include VERSION

ifndef JAVA_HOME
$(error Set JAVA_HOME environment variable)
endif


JAVA  := "$$JAVA_HOME/bin/java"
JAVAC := "$$JAVA_HOME/bin/javac" 
JAVAH := "$$JAVA_HOME/bin/javah"

WORK := target
OSINFO_CLASS := org.sqlite.OSInfo
OSINFO_PROG := lib/org/sqlite/OSInfo.class

## building OSInfo.java 
#$(info compiling OSInfo.java)
#$(shell mkdir -p lib)
#$(shell $(JAVAC) src/main/java/org/sqlite/OSInfo.java -d lib)

OS_NAME := $(shell $(JAVA) -cp lib $(OSINFO_CLASS) --os)
OS_ARCH := $(shell $(JAVA) -cp lib $(OSINFO_CLASS) --arch)
LIB_FOLDER := $(shell $(JAVA) -cp lib $(OSINFO_CLASS))

# Windows uses different path separators, because they hate me
ifeq ($(OS_NAME),Windows)
	sep := ;
else
	sep := :
endif

snappy := snappy-$(version)

jni_md := $(shell find -L "$(JAVA_HOME)" -name jni_md.h)
ifneq ($(jni_md),)
jni_include := $(shell dirname "$(jni_md)")
endif


# os=Default is meant to be generic unix/linux

known_targets := Linux-i386 Linux-amd64 Mac-i386 Mac-x86_64 Windows-x86 Windows-amd64
target := $(OS_NAME)-$(OS_ARCH)

ifeq (,$(findstring $(strip $(target)),$(known_targets)))
  target := Default
endif

Default_CXX        := gcc
Default_STRIP     := strip
Default_CXXFLAGS    := -I$(JAVA_HOME)/include -Ilib/inc_mac -Os -fPIC
Default_LINKFLAGS := -shared
Default_LIBNAME   := libsnappy.so
Default_SNAPPY_FLAGS  := 

Linux-i386_CXX  := cc
Linux-i386_STRIP  := strip
Linux-i386_CXXFLAGS    := -I$(JAVA_HOME)/include -Ilib/inc_mac -Os -fPIC
Linux-i386_LINKFLAGS := -shared
Linux-i386_LIBNAME   := libsnappy.so
Linux-i386_SNAPPY_FLAGS  := 

Linux-amd64_CXX  := gcc
Linux-amd64_STRIP  := strip
Linux-amd64_CXXFLAGS    := -I$(JAVA_HOME)/include -Ilib/inc_mac -Os -fPIC
Linux-amd64_LINKFLAGS := -shared
Linux-amd64_LIBNAME   := libsnappy.so
Linux-amd64_SNAPPY_FLAGS  := 

Mac-i386_CXX        := gcc -arch $(OS_ARCH) 
Mac-i386_STRIP     := strip -x
Mac-i386_CXXFLAGS    := -I$(JAVA_HOME)/include -Os -fPIC 
Mac-i386_LINKFLAGS := -dynamiclib 
Mac-i386_LIBNAME   := libsnappy.jnilib
Mac-i386_SNAPPY_FLAGS  := -DSNAPPY_ENABLE_LOCKING_STYLE=0

Mac-x86_64_CXX        := gcc -arch $(OS_ARCH) 
Mac-x86_64_STRIP     := strip -x
Mac-x86_64_CXXFLAGS    := -I$(JAVA_HOME)/include -Os -fPIC 
Mac-x86_64_LINKFLAGS := -dynamiclib 
Mac-x86_64_LIBNAME   := libsnappy.jnilib
Mac-x86_64_SNAPPY_FLAGS  := 

Windows-x86_CXX           := mingw32-gcc
Windows-x86_STRIP        := strip
Windows-x86_CXXFLAGS       := -D_JNI_IMPLEMENTATION_ -Ilib/inc_win -O
Windows-x86_LINKFLAGS    := -Wl,--kill-at -shared
Windows-x86_LIBNAME      := snappy.dll
Windows-x86_SNAPPY_FLAGS := 

Windows-amd64_CXX           := x86_64-w64-mingw32-gcc 
Windows-amd64_STRIP        := x86_64-w64-mingw32-strip
Windows-amd64_CXXFLAGS       := -D_JNI_IMPLEMENTATION_ -Ilib/inc_win -O
Windows-amd64_LINKFLAGS    := -Wl,--kill-at -shared
Windows-amd64_LIBNAME      := snappy.dll
Windows-amd64_SNAPPY_FLAGS := 


CXX        := $($(target)_CXX)
STRIP     := $($(target)_STRIP)
CXXFLAGS    := $($(target)_CXXFLAGS) 
LINKFLAGS := $($(target)_LINKFLAGS) 
LIBNAME   := $($(target)_LIBNAME)
SNAPPY_FLAGS := $($(target)_SNAPPY_FLAGS)

CXXFLAGS := $(CXXFLAGS) -I$(WORK)/build/$(snappy)-$(target) -I$(WORK)/build
ifneq ($(jni_include),)
CXXFLAGS := $(CXXFLAGS) -I"$(jni_include)"
endif