# 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.

## lines starting with '##' are lines overridden/modified/added by Hedgewars configuration

##CMAKE_MINIMUM_REQUIRED(VERSION 2.4)

##PROJECT(PhysicsFS)

set(PHYSFS_VERSION 2.1.0)

# 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)

# For now, Haiku and BeOS are the same, as far as the build system cares.

if(HAIKU AND NOT BEOS)

    set(BEOS TRUE)

endif(HAIKU AND NOT BEOS)

if(CMAKE_SYSTEM_NAME STREQUAL "SunOS")

    set(SOLARIS TRUE)

endif(CMAKE_SYSTEM_NAME STREQUAL "SunOS")

include(CheckIncludeFile)

include(CheckLibraryExists)

include(CheckCSourceCompiles)

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)

    find_library(iokit_framework NAMES IOKit)

    list(APPEND OTHER_LDFLAGS ${iokit_framework})

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 SOLARIS AND NOT WINDOWS)

            add_definitions(-fvisibility=hidden)

        endif(NOT SOLARIS AND NOT WINDOWS)

    endif(PHYSFS_IS_GCC4)

    # Don't use -rpath.

    set(CMAKE_SKIP_RPATH ON CACHE BOOL "Skip RPATH" FORCE)

endif(CMAKE_COMPILER_IS_GNUCC)

if(CMAKE_C_COMPILER_ID STREQUAL "SunPro")

    add_definitions(-erroff=E_EMPTY_TRANSLATION_UNIT)

    add_definitions(-xldscope=hidden)

endif(CMAKE_C_COMPILER_ID STREQUAL "SunPro")

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)

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 src/platform_beos.cpp)

    find_library(BE_LIBRARY be)

    find_library(ROOT_LIBRARY root)

    set(optional_library_libs ${optional_library_libs} ${BE_LIBRARY} ${ROOT_LIBRARY})

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_posix.c

    platform_unix.c

    platform_macosx.c

    platform_windows.c

    archiver_dir.c

    archiver_unpacked.c

    archiver_grp.c

    archiver_hog.c

    archiver_lzma.c

    archiver_mvl.c

    archiver_qpak.c

    archiver_wad.c

    archiver_zip.c

    archiver_iso9660.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)

        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)

        # !!! FIXME: Solaris fails this, because mnttab.h implicitly

        # !!! FIXME:  depends on other system headers.  :(

        #CHECK_INCLUDE_FILE(sys/mnttab.h HAVE_SYS_MNTTAB_H)

        CHECK_C_SOURCE_COMPILES("

            #include <stdio.h>

            #include <sys/mnttab.h>

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

        " HAVE_SYS_MNTTAB_H)

        if(HAVE_SYS_MNTTAB_H)

            add_definitions(-DPHYSFS_HAVE_SYS_MNTTAB_H=1)

            set(PHYSFS_HAVE_CDROM_SUPPORT TRUE)

        endif(HAVE_SYS_MNTTAB_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)

# Archivers ...

option(PHYSFS_ARCHIVE_ZIP "Enable ZIP support" TRUE)

if(PHYSFS_ARCHIVE_ZIP)

    add_definitions(-DPHYSFS_SUPPORTS_ZIP=1)

    set(PHYSFS_FEATURES "ZIP")

endif(PHYSFS_ARCHIVE_ZIP)

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

if(PHYSFS_ARCHIVE_GRP)

    add_definitions(-DPHYSFS_SUPPORTS_GRP=1)

    set(PHYSFS_FEATURES "${PHYSFS_FEATURES} GRP")

endif(PHYSFS_ARCHIVE_GRP)

option(PHYSFS_ARCHIVE_WAD "Enable Doom WAD support" TRUE)

if(PHYSFS_ARCHIVE_WAD)

    add_definitions(-DPHYSFS_SUPPORTS_WAD=1)

    set(PHYSFS_FEATURES "${PHYSFS_FEATURES} WAD")

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)

    set(PHYSFS_FEATURES "${PHYSFS_FEATURES} HOG")

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)

    set(PHYSFS_FEATURES "${PHYSFS_FEATURES} MVL")

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)

    set(PHYSFS_FEATURES "${PHYSFS_FEATURES} QPAK")

endif(PHYSFS_ARCHIVE_QPAK)

option(PHYSFS_ARCHIVE_ISO9660 "Enable ISO9660 support" TRUE)

if(PHYSFS_ARCHIVE_ISO9660)

    add_definitions(-DPHYSFS_SUPPORTS_ISO9660=1)

    set(PHYSFS_FEATURES "${PHYSFS_FEATURES} CD-ROM")

endif(PHYSFS_ARCHIVE_ISO9660)

##as needed by Hedgewars configuration

if(WINDOWS)

    option(PHYSFS_BUILD_STATIC "Build static library" FALSE)

    option(PHYSFS_BUILD_SHARED "Build shared library" TRUE)

    list(APPEND OTHER_LDFLAGS ${SDL_LIBRARY})

else(WINDOWS)

    option(PHYSFS_BUILD_STATIC "Build static library" TRUE)

    option(PHYSFS_BUILD_SHARED "Build shared library" FALSE)

endif(WINDOWS)

if(PHYSFS_BUILD_STATIC)

    add_library(physfs STATIC ${PHYSFS_SRCS})

    set_target_properties(physfs PROPERTIES OUTPUT_NAME "physfs")

    set(lib_prefix ${CMAKE_STATIC_LIBRARY_PREFIX}) ##

    set(lib_suffix ${CMAKE_STATIC_LIBRARY_SUFFIX}) ##

endif(PHYSFS_BUILD_STATIC)

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})

    install(TARGETS physfs RUNTIME DESTINATION ${target_library_install_dir}) ##

    set(lib_prefix ${CMAKE_SHARED_LIBRARY_PREFIX}) ##

    set(lib_suffix ${CMAKE_SHARED_LIBRARY_SUFFIX}) ##

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)

endif(PHYSFS_BUILD_SHARED AND PHYSFS_BUILD_STATIC)

## added standard variables emulating the FindPhysFS.cmake ones (FORCE or cmake won't pick 'em)

set(PHYSFS_INCLUDE_DIR ${CMAKE_SOURCE_DIR}/misc/libphysfs/ CACHE STRING "" FORCE)

set(PHYSFS_LIBRARY ${LIBRARY_OUTPUT_PATH}/${lib_prefix}physfs${lib_suffix} CACHE STRING "" FORCE)

## this is to avoid find_package() find the just built library and shadowing it at next cmake run

set(PHYSFS_BUNDLE TRUE CACHE STRING "" FORCE)

## removed install, language bindings and test program

## simplified configuration output

message(STATUS "PhysFS will be built with ${PHYSFS_FEATURES} support")