# PhysicsFS; a portable, flexible file i/o abstraction.

# Copyright (C) 2007  Ryan C. Gordon.

#

# Please see the file LICENSE.txt in the source's root directory.

CMAKE_MINIMUM_REQUIRED(VERSION 2.4)

PROJECT(PhysicsFS)

SET(PHYSFS_VERSION 2.0.0)

# Increment this if/when we break backwards compatibility.

SET(PHYSFS_SOVERSION 1)

# I hate that they define "WIN32" ... we're about to move to Win64...I hope!

IF(WIN32 AND NOT WINDOWS)

    SET(WINDOWS TRUE)

ENDIF(WIN32 AND NOT WINDOWS)

# Bleh, let's do it for "APPLE" too.

IF(APPLE AND NOT MACOSX)

    SET(MACOSX TRUE)

ENDIF(APPLE AND NOT MACOSX)

INCLUDE(CheckIncludeFile)

INCLUDE(CheckLibraryExists)

INCLUDE(CheckCSourceCompiles)

INCLUDE_DIRECTORIES(.)

#INCLUDE_DIRECTORIES(platform)

#INCLUDE_DIRECTORIES(archivers)

IF(MACOSX)

    # Fallback to older OS X on PowerPC to support wider range of systems...

    IF(CMAKE_OSX_ARCHITECTURES MATCHES ppc)

        ADD_DEFINITIONS(-DMAC_OS_X_VERSION_MIN_REQUIRED=1020)

        SET(OTHER_LDFLAGS ${OTHER_LDFLAGS} " -mmacosx-version-min=10.2")

    ENDIF(CMAKE_OSX_ARCHITECTURES MATCHES ppc)

    # Need these everywhere...

    ADD_DEFINITIONS(-fno-common)

    SET(OTHER_LDFLAGS ${OTHER_LDFLAGS} " -framework Carbon -framework IOKit")

ENDIF(MACOSX)

# Add some gcc-specific command lines.

IF(CMAKE_COMPILER_IS_GNUCC)

    # Always build with debug symbols...you can strip it later.

    ADD_DEFINITIONS(-g -pipe -Werror -fsigned-char)

    # Stupid BeOS generates warnings in the system headers.

    IF(NOT BEOS)

        ADD_DEFINITIONS(-Wall)

    ENDIF(NOT BEOS)

    CHECK_C_SOURCE_COMPILES("

        #if ((defined(__GNUC__)) && (__GNUC__ >= 4))

        int main(int argc, char **argv) { int is_gcc4 = 1; return 0; }

        #else

        #error This is not gcc4.

        #endif

    " PHYSFS_IS_GCC4)

    IF(PHYSFS_IS_GCC4)

        # Not supported on several operating systems at this time.

        IF(NOT OS2 AND NOT SOLARIS AND NOT WINDOWS)

             ADD_DEFINITIONS(-fvisibility=hidden)

        ENDIF(NOT OS2 AND NOT SOLARIS AND NOT WINDOWS)

    ENDIF(PHYSFS_IS_GCC4)

ENDIF(CMAKE_COMPILER_IS_GNUCC)

IF(MSVC)

    # VS.NET 8.0 got really really anal about strcpy, etc, which even if we

    #  cleaned up our code, zlib, etc still use...so disable the warning.

    ADD_DEFINITIONS(-D_CRT_SECURE_NO_WARNINGS=1)

ENDIF(MSVC)

# Basic chunks of source code ...

SET(ZLIB_SRCS

    zlib123/adler32.c

    zlib123/compress.c

    zlib123/crc32.c

    zlib123/deflate.c

    zlib123/gzio.c

    zlib123/infback.c

    zlib123/inffast.c

    zlib123/inflate.c

    zlib123/inftrees.c

    zlib123/trees.c

    zlib123/uncompr.c

    zlib123/zutil.c

)

SET(LZMA_SRCS

    lzma/C/7zCrc.c

    lzma/C/Archive/7z/7zBuffer.c

    lzma/C/Archive/7z/7zDecode.c

    lzma/C/Archive/7z/7zExtract.c

    lzma/C/Archive/7z/7zHeader.c

    lzma/C/Archive/7z/7zIn.c

    lzma/C/Archive/7z/7zItem.c

    lzma/C/Archive/7z/7zMethodID.c

    lzma/C/Compress/Branch/BranchX86.c

    lzma/C/Compress/Branch/BranchX86_2.c

    lzma/C/Compress/Lzma/LzmaDecode.c

)

IF(BEOS)

    # We add this explicitly, since we don't want CMake to think this

    #  is a C++ project unless we're on BeOS.

    SET(PHYSFS_BEOS_SRCS platform/beos.cpp)

    SET(OPTIONAL_LIBRARY_LIBS ${OPTIONAL_LIBRARY_LIBS} be root)

ENDIF(BEOS)

# Almost everything is "compiled" here, but things that don't apply to the

#  build are #ifdef'd out. This is to make it easy to embed PhysicsFS into

#  another project or bring up a new build system: just compile all the source

#  code and #define the things you want.

SET(PHYSFS_SRCS

    physfs.c

    physfs_byteorder.c

    physfs_unicode.c

    platform/os2.c

    platform/pocketpc.c

    platform/posix.c

    platform/unix.c

    platform/macosx.c

    platform/windows.c

    archivers/dir.c

    archivers/grp.c

    archivers/hog.c

    archivers/lzma.c

    archivers/mvl.c

    archivers/qpak.c

    archivers/wad.c

    archivers/zip.c

    ${PHYSFS_BEOS_SRCS}

)

# platform layers ...

IF(UNIX)

    IF(BEOS)

        SET(PHYSFS_HAVE_CDROM_SUPPORT TRUE)

        SET(PHYSFS_HAVE_THREAD_SUPPORT TRUE)

        SET(HAVE_PTHREAD_H TRUE)

    ELSE(BEOS)

        # !!! FIXME

        #  AC_DEFINE([PHYSFS_HAVE_LLSEEK], 1, [define if we have llseek])

        CHECK_INCLUDE_FILE(sys/ucred.h HAVE_UCRED_H)

        IF(HAVE_UCRED_H)

            ADD_DEFINITIONS(-DPHYSFS_HAVE_SYS_UCRED_H=1)

            SET(PHYSFS_HAVE_CDROM_SUPPORT TRUE)

        ENDIF(HAVE_UCRED_H)

        CHECK_INCLUDE_FILE(mntent.h HAVE_MNTENT_H)

        IF(HAVE_MNTENT_H)

            ADD_DEFINITIONS(-DPHYSFS_HAVE_MNTENT_H=1)

            SET(PHYSFS_HAVE_CDROM_SUPPORT TRUE)

        ENDIF(HAVE_MNTENT_H)

        CHECK_INCLUDE_FILE(pthread.h HAVE_PTHREAD_H)

        IF(HAVE_PTHREAD_H)

            SET(PHYSFS_HAVE_THREAD_SUPPORT TRUE)

        ENDIF(HAVE_PTHREAD_H)

    ENDIF(BEOS)

ENDIF(UNIX)

IF(WINDOWS)

    SET(PHYSFS_HAVE_CDROM_SUPPORT TRUE)

    SET(PHYSFS_HAVE_THREAD_SUPPORT TRUE)

ENDIF(WINDOWS)

IF(NOT PHYSFS_HAVE_CDROM_SUPPORT)

    ADD_DEFINITIONS(-DPHYSFS_NO_CDROM_SUPPORT=1)

    MESSAGE(WARNING " ***")

    MESSAGE(WARNING " *** There is no CD-ROM support in this build!")

    MESSAGE(WARNING " *** PhysicsFS will just pretend there are no discs.")

    MESSAGE(WARNING " *** This may be fine, depending on how PhysicsFS is used,")

    MESSAGE(WARNING " ***   but is this what you REALLY wanted?")

    MESSAGE(WARNING " *** (Maybe fix CMakeLists.txt, or write a platform driver?)")

    MESSAGE(WARNING " ***")

ENDIF(NOT PHYSFS_HAVE_CDROM_SUPPORT)

IF(PHYSFS_HAVE_THREAD_SUPPORT)

    ADD_DEFINITIONS(-D_REENTRANT -D_THREAD_SAFE)

ELSE(PHYSFS_HAVE_THREAD_SUPPORT)

    ADD_DEFINITIONS(-DPHYSFS_NO_THREAD_SUPPORT=1)

    MESSAGE(WARNING " ***")

    MESSAGE(WARNING " *** There is no thread support in this build!")

    MESSAGE(WARNING " *** PhysicsFS will NOT be reentrant!")

    MESSAGE(WARNING " *** This may be fine, depending on how PhysicsFS is used,")

    MESSAGE(WARNING " ***   but is this what you REALLY wanted?")

    MESSAGE(WARNING " *** (Maybe fix CMakeLists.txt, or write a platform driver?)")

    MESSAGE(WARNING " ***")

ENDIF(PHYSFS_HAVE_THREAD_SUPPORT)

CHECK_INCLUDE_FILE(assert.h HAVE_ASSERT_H)

IF(HAVE_ASSERT_H)

    ADD_DEFINITIONS(-DHAVE_ASSERT_H=1)

ENDIF(HAVE_ASSERT_H)

# Archivers ...

OPTION(PHYSFS_ARCHIVE_ZIP "Enable ZIP support" TRUE)

IF(PHYSFS_ARCHIVE_ZIP)

    ADD_DEFINITIONS(-DPHYSFS_SUPPORTS_ZIP=1)

    SET(PHYSFS_NEED_ZLIB TRUE)

ENDIF(PHYSFS_ARCHIVE_ZIP)

OPTION(PHYSFS_ARCHIVE_7Z "Enable 7zip support" TRUE)

IF(PHYSFS_ARCHIVE_7Z)

    ADD_DEFINITIONS(-DPHYSFS_SUPPORTS_7Z=1)

    # !!! FIXME: rename to 7z.c?

    SET(PHYSFS_SRCS ${PHYSFS_SRCS} ${LZMA_SRCS})

ENDIF(PHYSFS_ARCHIVE_7Z)

OPTION(PHYSFS_ARCHIVE_GRP "Enable Build Engine GRP support" TRUE)

IF(PHYSFS_ARCHIVE_GRP)

    ADD_DEFINITIONS(-DPHYSFS_SUPPORTS_GRP=1)

ENDIF(PHYSFS_ARCHIVE_GRP)

OPTION(PHYSFS_ARCHIVE_WAD "Enable Doom WAD support" TRUE)

IF(PHYSFS_ARCHIVE_WAD)

    ADD_DEFINITIONS(-DPHYSFS_SUPPORTS_WAD=1)

ENDIF(PHYSFS_ARCHIVE_WAD)

OPTION(PHYSFS_ARCHIVE_HOG "Enable Descent I/II HOG support" TRUE)

IF(PHYSFS_ARCHIVE_HOG)

    ADD_DEFINITIONS(-DPHYSFS_SUPPORTS_HOG=1)

ENDIF(PHYSFS_ARCHIVE_HOG)

OPTION(PHYSFS_ARCHIVE_MVL "Enable Descent I/II MVL support" TRUE)

IF(PHYSFS_ARCHIVE_MVL)

    ADD_DEFINITIONS(-DPHYSFS_SUPPORTS_MVL=1)

ENDIF(PHYSFS_ARCHIVE_MVL)

OPTION(PHYSFS_ARCHIVE_QPAK "Enable Quake I/II QPAK support" TRUE)

IF(PHYSFS_ARCHIVE_QPAK)

    ADD_DEFINITIONS(-DPHYSFS_SUPPORTS_QPAK=1)

ENDIF(PHYSFS_ARCHIVE_QPAK)

# See if some archiver required zlib, and see about using system version.

IF(PHYSFS_NEED_ZLIB)

    FIND_PACKAGE(ZLIB)

    IF(ZLIB_FOUND)

        OPTION(PHYSFS_INTERNAL_ZLIB "Link own zlib instead of system library" FALSE)

    ELSE(HAVE_SYSTEM_ZLIB)

        SET(PHYSFS_INTERNAL_ZLIB TRUE)

    ENDIF(ZLIB_FOUND)

    IF(PHYSFS_INTERNAL_ZLIB)

        INCLUDE_DIRECTORIES(zlib123)

        ADD_DEFINITIONS(-DZ_PREFIX=1)

        SET(PHYSFS_SRCS ${PHYSFS_SRCS} ${ZLIB_SRCS})

    ELSE(PHYSFS_INTERNAL_ZLIB)

        SET(OPTIONAL_LIBRARY_LIBS ${OPTIONAL_LIBRARY_LIBS} ${ZLIB_LIBRARY})

        INCLUDE_DIRECTORIES(${ZLIB_INCLUDE_DIR})

    ENDIF(PHYSFS_INTERNAL_ZLIB)

ENDIF(PHYSFS_NEED_ZLIB)

OPTION(PHYSFS_BUILD_STATIC "Build static library" TRUE)

IF(PHYSFS_BUILD_STATIC)

    ADD_LIBRARY(physfs-static STATIC ${PHYSFS_SRCS})

    SET_TARGET_PROPERTIES(physfs-static PROPERTIES OUTPUT_NAME "physfs")

    SET(PHYSFS_LIB_TARGET physfs-static)

    SET(PHYSFS_INSTALL_TARGETS ${PHYSFS_INSTALL_TARGETS} ";physfs-static")

ENDIF(PHYSFS_BUILD_STATIC)

OPTION(PHYSFS_BUILD_SHARED "Build shared library" TRUE)

IF(PHYSFS_BUILD_SHARED)

    ADD_LIBRARY(physfs SHARED ${PHYSFS_SRCS})

    SET_TARGET_PROPERTIES(physfs PROPERTIES VERSION ${PHYSFS_VERSION})

    SET_TARGET_PROPERTIES(physfs PROPERTIES SOVERSION ${PHYSFS_SOVERSION})

    TARGET_LINK_LIBRARIES(physfs ${OPTIONAL_LIBRARY_LIBS} ${OTHER_LDFLAGS})

    SET(PHYSFS_LIB_TARGET physfs)

    SET(PHYSFS_INSTALL_TARGETS ${PHYSFS_INSTALL_TARGETS} ";physfs")

ENDIF(PHYSFS_BUILD_SHARED)

IF(NOT PHYSFS_BUILD_SHARED AND NOT PHYSFS_BUILD_STATIC)

    MESSAGE(FATAL "Both shared and static libraries are disabled!")

ENDIF(NOT PHYSFS_BUILD_SHARED AND NOT PHYSFS_BUILD_STATIC)

# CMake FAQ says I need this...

IF(PHYSFS_BUILD_SHARED AND PHYSFS_BUILD_STATIC)

    SET_TARGET_PROPERTIES(physfs PROPERTIES CLEAN_DIRECT_OUTPUT 1)

    SET_TARGET_PROPERTIES(physfs-static PROPERTIES CLEAN_DIRECT_OUTPUT 1)

ENDIF(PHYSFS_BUILD_SHARED AND PHYSFS_BUILD_STATIC)

OPTION(PHYSFS_BUILD_TEST "Build stdio test program." TRUE)

MARK_AS_ADVANCED(PHYSFS_BUILD_TEST)

IF(PHYSFS_BUILD_TEST)

    FIND_PATH(READLINE_H readline/readline.h)

    FIND_PATH(HISTORY_H readline/history.h)

    IF(READLINE_H AND HISTORY_H)

        SET(CMAKE_REQUIRED_LIBRARIES curses)

        FIND_LIBRARY(READLINE_LIBRARY readline)

        FIND_LIBRARY(HISTORY_LIBRARY history)

        IF(READLINE_LIBRARY AND HISTORY_LIBRARY)

            SET(HAVE_SYSTEM_READLINE TRUE)

            SET(TEST_PHYSFS_LIBS ${TEST_PHYSFS_LIBS} ${READLINE_LIBRARY} ${CURSES_LIBRARY})

            INCLUDE_DIRECTORIES(${READLINE_H} ${HISTORY_H})

            ADD_DEFINITIONS(-DPHYSFS_HAVE_READLINE=1)

        ENDIF(READLINE_LIBRARY AND HISTORY_LIBRARY)

    ENDIF(READLINE_H AND HISTORY_H)

    ADD_EXECUTABLE(test_physfs test/test_physfs.c)

    TARGET_LINK_LIBRARIES(test_physfs ${PHYSFS_LIB_TARGET} ${TEST_PHYSFS_LIBS} ${OTHER_LDFLAGS})

    SET(PHYSFS_INSTALL_TARGETS ${PHYSFS_INSTALL_TARGETS} ";test_physfs")

ENDIF(PHYSFS_BUILD_TEST)

OPTION(PHYSFS_BUILD_WX_TEST "Build wxWidgets test program." TRUE)

MARK_AS_ADVANCED(PHYSFS_BUILD_WX_TEST)

IF(PHYSFS_BUILD_WX_TEST)

    SET(wxWidgets_USE_LIBS base core adv)

    SET(wxWidgets_INCLUDE_DIRS_NO_SYSTEM 1)

    FIND_PACKAGE(wxWidgets)

    IF(wxWidgets_FOUND)

        INCLUDE(${wxWidgets_USE_FILE})

        ADD_EXECUTABLE(wxtest_physfs test/wxtest_physfs.cpp)

        SET_SOURCE_FILES_PROPERTIES(test/wxtest_physfs.cpp COMPILE_FLAGS ${wxWidgets_CXX_FLAGS})

        TARGET_LINK_LIBRARIES(wxtest_physfs ${PHYSFS_LIB_TARGET} ${wxWidgets_LIBRARIES} ${OTHER_LDFLAGS})

        SET(PHYSFS_INSTALL_TARGETS ${PHYSFS_INSTALL_TARGETS} ";wxtest_physfs")

    ELSE(wxWidgets_FOUND)

        MESSAGE(STATUS "wxWidgets not found. Disabling wx test app.")

        SET(PHYSFS_BUILD_WX_TEST FALSE)

    ENDIF(wxWidgets_FOUND)

ENDIF(PHYSFS_BUILD_WX_TEST)

INSTALL(TARGETS ${PHYSFS_INSTALL_TARGETS}

        RUNTIME DESTINATION bin

        LIBRARY DESTINATION lib

        ARCHIVE DESTINATION lib)

INSTALL(FILES physfs.h DESTINATION include)

FIND_PACKAGE(Doxygen)

IF(DOXYGEN_FOUND)

    ADD_CUSTOM_TARGET(docs ${DOXYGEN_EXECUTABLE} COMMENT "Building documentation")

ELSE(DOXYGEN_FOUND)

    MESSAGE(STATUS "Doxygen not found. You won't be able to build documentation.")

ENDIF(DOXYGEN_FOUND)

IF(UNIX)

    SET(PHYSFS_TARBALL "${CMAKE_CURRENT_SOURCE_DIR}/../physfs-${PHYSFS_VERSION}.tar.gz")

    ADD_CUSTOM_TARGET(

        dist

        hg archive -t tgz "${PHYSFS_TARBALL}"

        WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"

        COMMENT "Building source tarball '${PHYSFS_TARBALL}'..."

    )

ENDIF(UNIX)

MACRO(MESSAGE_BOOL_OPTION _NAME _VALUE)

    IF(${_VALUE})

        MESSAGE(STATUS "  ${_NAME}: enabled")

    ELSE(${_VALUE})

        MESSAGE(STATUS "  ${_NAME}: disabled")

    ENDIF(${_VALUE})

ENDMACRO(MESSAGE_BOOL_OPTION)

MESSAGE(STATUS "PhysicsFS will build with the following options:")

MESSAGE_BOOL_OPTION("ZIP support" PHYSFS_ARCHIVE_ZIP)

MESSAGE_BOOL_OPTION("7zip support" PHYSFS_ARCHIVE_7Z)

MESSAGE_BOOL_OPTION("GRP support" PHYSFS_ARCHIVE_GRP)

MESSAGE_BOOL_OPTION("WAD support" PHYSFS_ARCHIVE_WAD)

MESSAGE_BOOL_OPTION("HOG support" PHYSFS_ARCHIVE_HOG)

MESSAGE_BOOL_OPTION("MVL support" PHYSFS_ARCHIVE_MVL)

MESSAGE_BOOL_OPTION("QPAK support" PHYSFS_ARCHIVE_QPAK)

MESSAGE_BOOL_OPTION("CD-ROM drive support" PHYSFS_HAVE_CDROM_SUPPORT)

MESSAGE_BOOL_OPTION("Thread safety" PHYSFS_HAVE_THREAD_SUPPORT)

MESSAGE_BOOL_OPTION("Build own zlib" PHYSFS_INTERNAL_ZLIB)

MESSAGE_BOOL_OPTION("Build static library" PHYSFS_BUILD_STATIC)

MESSAGE_BOOL_OPTION("Build shared library" PHYSFS_BUILD_SHARED)

MESSAGE_BOOL_OPTION("Build wxWidgets test program" PHYSFS_BUILD_WX_TEST)

MESSAGE_BOOL_OPTION("Build stdio test program" PHYSFS_BUILD_TEST)

IF(PHYSFS_BUILD_TEST)

    MESSAGE_BOOL_OPTION("  Use readline in test program" HAVE_SYSTEM_READLINE)

ENDIF(PHYSFS_BUILD_TEST)

# end of CMakeLists.txt ...