You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
236 lines
7.3 KiB
236 lines
7.3 KiB
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
|
|
# file Copyright.txt or https://cmake.org/licensing for details.
|
|
|
|
#[=======================================================================[.rst:
|
|
FindZLIB
|
|
--------
|
|
|
|
Find the native ZLIB includes and library.
|
|
|
|
IMPORTED Targets
|
|
^^^^^^^^^^^^^^^^
|
|
|
|
.. versionadded:: 3.1
|
|
|
|
This module defines :prop_tgt:`IMPORTED` target ``ZLIB::ZLIB``, if
|
|
ZLIB has been found.
|
|
|
|
Result Variables
|
|
^^^^^^^^^^^^^^^^
|
|
|
|
This module defines the following variables:
|
|
|
|
``ZLIB_INCLUDE_DIRS``
|
|
where to find zlib.h, etc.
|
|
``ZLIB_LIBRARIES``
|
|
List of libraries when using zlib.
|
|
``ZLIB_FOUND``
|
|
True if zlib found.
|
|
``ZLIB_VERSION``
|
|
.. versionadded:: 3.26
|
|
the version of Zlib found.
|
|
|
|
See also legacy variable ``ZLIB_VERSION_STRING``.
|
|
|
|
.. versionadded:: 3.4
|
|
Debug and Release variants are found separately.
|
|
|
|
Legacy Variables
|
|
^^^^^^^^^^^^^^^^
|
|
|
|
The following variables are provided for backward compatibility:
|
|
|
|
``ZLIB_VERSION_MAJOR``
|
|
The major version of zlib.
|
|
|
|
.. versionchanged:: 3.26
|
|
Superseded by ``ZLIB_VERSION``.
|
|
``ZLIB_VERSION_MINOR``
|
|
The minor version of zlib.
|
|
|
|
.. versionchanged:: 3.26
|
|
Superseded by ``ZLIB_VERSION``.
|
|
``ZLIB_VERSION_PATCH``
|
|
The patch version of zlib.
|
|
|
|
.. versionchanged:: 3.26
|
|
Superseded by ``ZLIB_VERSION``.
|
|
``ZLIB_VERSION_TWEAK``
|
|
The tweak version of zlib.
|
|
|
|
.. versionchanged:: 3.26
|
|
Superseded by ``ZLIB_VERSION``.
|
|
``ZLIB_VERSION_STRING``
|
|
The version of zlib found (x.y.z)
|
|
|
|
.. versionchanged:: 3.26
|
|
Superseded by ``ZLIB_VERSION``.
|
|
``ZLIB_MAJOR_VERSION``
|
|
The major version of zlib. Superseded by ``ZLIB_VERSION_MAJOR``.
|
|
``ZLIB_MINOR_VERSION``
|
|
The minor version of zlib. Superseded by ``ZLIB_VERSION_MINOR``.
|
|
``ZLIB_PATCH_VERSION``
|
|
The patch version of zlib. Superseded by ``ZLIB_VERSION_PATCH``.
|
|
|
|
Hints
|
|
^^^^^
|
|
|
|
A user may set ``ZLIB_ROOT`` to a zlib installation root to tell this
|
|
module where to look.
|
|
|
|
.. versionadded:: 3.24
|
|
Set ``ZLIB_USE_STATIC_LIBS`` to ``ON`` to look for static libraries.
|
|
Default is ``OFF``.
|
|
|
|
#]=======================================================================]
|
|
|
|
if(ZLIB_FIND_COMPONENTS AND NOT ZLIB_FIND_QUIETLY)
|
|
message(AUTHOR_WARNING
|
|
"ZLIB does not provide any COMPONENTS. Calling\n"
|
|
" find_package(ZLIB COMPONENTS ...)\n"
|
|
"will always fail."
|
|
)
|
|
endif()
|
|
|
|
set(_ZLIB_SEARCHES)
|
|
|
|
# Search ZLIB_ROOT first if it is set.
|
|
if(ZLIB_ROOT)
|
|
set(_ZLIB_SEARCH_ROOT PATHS ${ZLIB_ROOT} NO_DEFAULT_PATH)
|
|
list(APPEND _ZLIB_SEARCHES _ZLIB_SEARCH_ROOT)
|
|
endif()
|
|
|
|
# Normal search.
|
|
set(_ZLIB_x86 "(x86)")
|
|
set(_ZLIB_SEARCH_NORMAL
|
|
PATHS "[HKEY_LOCAL_MACHINE\\SOFTWARE\\GnuWin32\\Zlib;InstallPath]"
|
|
"$ENV{ProgramFiles}/zlib"
|
|
"$ENV{ProgramFiles${_ZLIB_x86}}/zlib")
|
|
unset(_ZLIB_x86)
|
|
list(APPEND _ZLIB_SEARCHES _ZLIB_SEARCH_NORMAL)
|
|
|
|
if(ZLIB_USE_STATIC_LIBS)
|
|
set(ZLIB_NAMES zlibstatic zlibstat zlib z)
|
|
set(ZLIB_NAMES_DEBUG zlibstaticd zlibstatd zlibd zd)
|
|
else()
|
|
set(ZLIB_NAMES z zlib zdll zlib1 zlibstatic zlibwapi zlibvc zlibstat)
|
|
set(ZLIB_NAMES_DEBUG zd zlibd zdlld zlibd1 zlib1d zlibstaticd zlibwapid zlibvcd zlibstatd)
|
|
endif()
|
|
|
|
# Try each search configuration.
|
|
foreach(search ${_ZLIB_SEARCHES})
|
|
find_path(ZLIB_INCLUDE_DIR NAMES zlib.h ${${search}} PATH_SUFFIXES include)
|
|
endforeach()
|
|
|
|
# Allow ZLIB_LIBRARY to be set manually, as the location of the zlib library
|
|
if(NOT ZLIB_LIBRARY)
|
|
if(DEFINED CMAKE_FIND_LIBRARY_PREFIXES)
|
|
set(_zlib_ORIG_CMAKE_FIND_LIBRARY_PREFIXES "${CMAKE_FIND_LIBRARY_PREFIXES}")
|
|
else()
|
|
set(_zlib_ORIG_CMAKE_FIND_LIBRARY_PREFIXES)
|
|
endif()
|
|
if(DEFINED CMAKE_FIND_LIBRARY_SUFFIXES)
|
|
set(_zlib_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES "${CMAKE_FIND_LIBRARY_SUFFIXES}")
|
|
else()
|
|
set(_zlib_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES)
|
|
endif()
|
|
# Prefix/suffix of the win32/Makefile.gcc build
|
|
if(WIN32)
|
|
list(APPEND CMAKE_FIND_LIBRARY_PREFIXES "" "lib")
|
|
list(APPEND CMAKE_FIND_LIBRARY_SUFFIXES ".dll.a")
|
|
endif()
|
|
# Support preference of static libs by adjusting CMAKE_FIND_LIBRARY_SUFFIXES
|
|
if(ZLIB_USE_STATIC_LIBS)
|
|
if(WIN32)
|
|
set(CMAKE_FIND_LIBRARY_SUFFIXES .lib .a ${CMAKE_FIND_LIBRARY_SUFFIXES})
|
|
else()
|
|
set(CMAKE_FIND_LIBRARY_SUFFIXES .a)
|
|
endif()
|
|
endif()
|
|
|
|
foreach(search ${_ZLIB_SEARCHES})
|
|
find_library(ZLIB_LIBRARY_RELEASE NAMES ${ZLIB_NAMES} NAMES_PER_DIR ${${search}} PATH_SUFFIXES lib)
|
|
find_library(ZLIB_LIBRARY_DEBUG NAMES ${ZLIB_NAMES_DEBUG} NAMES_PER_DIR ${${search}} PATH_SUFFIXES lib)
|
|
endforeach()
|
|
|
|
# Restore the original find library ordering
|
|
if(DEFINED _zlib_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES)
|
|
set(CMAKE_FIND_LIBRARY_SUFFIXES "${_zlib_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES}")
|
|
else()
|
|
set(CMAKE_FIND_LIBRARY_SUFFIXES)
|
|
endif()
|
|
if(DEFINED _zlib_ORIG_CMAKE_FIND_LIBRARY_PREFIXES)
|
|
set(CMAKE_FIND_LIBRARY_PREFIXES "${_zlib_ORIG_CMAKE_FIND_LIBRARY_PREFIXES}")
|
|
else()
|
|
set(CMAKE_FIND_LIBRARY_PREFIXES)
|
|
endif()
|
|
|
|
include(${CMAKE_CURRENT_LIST_DIR}/SelectLibraryConfigurations.cmake)
|
|
select_library_configurations(ZLIB)
|
|
endif()
|
|
|
|
unset(ZLIB_NAMES)
|
|
unset(ZLIB_NAMES_DEBUG)
|
|
|
|
mark_as_advanced(ZLIB_INCLUDE_DIR)
|
|
|
|
if(ZLIB_INCLUDE_DIR AND EXISTS "${ZLIB_INCLUDE_DIR}/zlib.h")
|
|
file(STRINGS "${ZLIB_INCLUDE_DIR}/zlib.h" ZLIB_H REGEX "^#define ZLIB_VERSION \"[^\"]*\"$")
|
|
|
|
string(REGEX REPLACE "^.*ZLIB_VERSION \"([0-9]+).*$" "\\1" ZLIB_VERSION_MAJOR "${ZLIB_H}")
|
|
string(REGEX REPLACE "^.*ZLIB_VERSION \"[0-9]+\\.([0-9]+).*$" "\\1" ZLIB_VERSION_MINOR "${ZLIB_H}")
|
|
string(REGEX REPLACE "^.*ZLIB_VERSION \"[0-9]+\\.[0-9]+\\.([0-9]+).*$" "\\1" ZLIB_VERSION_PATCH "${ZLIB_H}")
|
|
set(ZLIB_VERSION_STRING "${ZLIB_VERSION_MAJOR}.${ZLIB_VERSION_MINOR}.${ZLIB_VERSION_PATCH}")
|
|
|
|
# only append a TWEAK version if it exists:
|
|
set(ZLIB_VERSION_TWEAK "")
|
|
if( "${ZLIB_H}" MATCHES "ZLIB_VERSION \"[0-9]+\\.[0-9]+\\.[0-9]+\\.([0-9]+)")
|
|
set(ZLIB_VERSION_TWEAK "${CMAKE_MATCH_1}")
|
|
string(APPEND ZLIB_VERSION_STRING ".${ZLIB_VERSION_TWEAK}")
|
|
endif()
|
|
|
|
set(ZLIB_MAJOR_VERSION "${ZLIB_VERSION_MAJOR}")
|
|
set(ZLIB_MINOR_VERSION "${ZLIB_VERSION_MINOR}")
|
|
set(ZLIB_PATCH_VERSION "${ZLIB_VERSION_PATCH}")
|
|
|
|
set(ZLIB_VERSION ${ZLIB_VERSION_STRING})
|
|
endif()
|
|
|
|
include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
|
|
FIND_PACKAGE_HANDLE_STANDARD_ARGS(ZLIB REQUIRED_VARS ZLIB_LIBRARY ZLIB_INCLUDE_DIR
|
|
VERSION_VAR ZLIB_VERSION
|
|
HANDLE_COMPONENTS)
|
|
|
|
if(ZLIB_FOUND)
|
|
set(ZLIB_INCLUDE_DIRS ${ZLIB_INCLUDE_DIR})
|
|
|
|
if(NOT ZLIB_LIBRARIES)
|
|
set(ZLIB_LIBRARIES ${ZLIB_LIBRARY})
|
|
endif()
|
|
|
|
if(NOT TARGET ZLIB::ZLIB)
|
|
add_library(ZLIB::ZLIB UNKNOWN IMPORTED)
|
|
set_target_properties(ZLIB::ZLIB PROPERTIES
|
|
INTERFACE_INCLUDE_DIRECTORIES "${ZLIB_INCLUDE_DIRS}")
|
|
|
|
if(ZLIB_LIBRARY_RELEASE)
|
|
set_property(TARGET ZLIB::ZLIB APPEND PROPERTY
|
|
IMPORTED_CONFIGURATIONS RELEASE)
|
|
set_target_properties(ZLIB::ZLIB PROPERTIES
|
|
IMPORTED_LOCATION_RELEASE "${ZLIB_LIBRARY_RELEASE}")
|
|
endif()
|
|
|
|
if(ZLIB_LIBRARY_DEBUG)
|
|
set_property(TARGET ZLIB::ZLIB APPEND PROPERTY
|
|
IMPORTED_CONFIGURATIONS DEBUG)
|
|
set_target_properties(ZLIB::ZLIB PROPERTIES
|
|
IMPORTED_LOCATION_DEBUG "${ZLIB_LIBRARY_DEBUG}")
|
|
endif()
|
|
|
|
if(NOT ZLIB_LIBRARY_RELEASE AND NOT ZLIB_LIBRARY_DEBUG)
|
|
set_property(TARGET ZLIB::ZLIB APPEND PROPERTY
|
|
IMPORTED_LOCATION "${ZLIB_LIBRARY}")
|
|
endif()
|
|
endif()
|
|
endif()
|