project(minizip)

cmake_minimum_required(VERSION 2.6)

if (UNIX)
	find_package(ZLIB REQUIRED)
endif()

set (SOURCES
 ioapi.c
 unzip.c
 zip.c
)

set (HEADERS
 ioapi.h
 unzip.h
 zip.h
)

if (APPLE OR ${CMAKE_SYSTEM_NAME} STREQUAL "FreeBSD")
	# Mac OS X does not have fopen64()
	# and several related functions as the standard fopen()
	# calls are 64bit
	add_definitions("-DUSE_FILE32API")
endif()

if(WIN32)
    set(BZ2_DIR "${CMAKE_CURRENT_SOURCE_DIR}/../bzip2")
    foreach(win_file blocksort.c bzlib.c compress.c crctable.c decompress.c huffman.c randtable.c)
        list(APPEND SOURCES ${BZ2_DIR}/${win_file})
    endforeach()

    foreach(win_file bzlib.h bzlib_private.h)
        list(APPEND HEADERS ${BZ2_DIR}/${win_file})
    endforeach()
endif()

add_definitions("-DHAVE_BZIP2")

add_library(minizip
 ${SOURCES}
 ${HEADERS}
)

if (UNIX)
	# on Mac, link to libbz2 dynamically, on Linux
	# we link statically to libbz2 so that an updater binary
	# build on Debian (where the packaged libbz2 has a SONAME of "libbz2.so.1.0"
	# works on Fedora/openSUSE (where no libbz2.so.1.0 symlink exists)
	# 
	# see http://stackoverflow.com/questions/1835489/linking-an-application-to-libbz2-so-1-rather-than-libbz2-so-1-0
	#
	find_package(BZip2)

	set(BZ2_LIB_NAME bz2)
	if (NOT APPLE)
		set(BZ2_LIB_NAME bz2.a)
	endif()

	target_link_libraries(minizip z ${BZ2_LIB_NAME})
else()
    target_include_directories(minizip PRIVATE ${BZ2_DIR})
    target_link_libraries(minizip
        "${CMAKE_CURRENT_SOURCE_DIR}/../zlib/prebuilt/zlib_static.lib"
    )
endif()