cpp-httplib/httplibConfig.cmake.in
KTGH 342c3ab293
Add Brotli Cmake support (#584)
Had to create a custom FindBrotli package, as not all users have
PkgConfig installed (which Brotli uses). This file gets installed
alongside httplibConfig.cmake for the end-users convenience.

Set BROTLI_USE_STATIC_LIBS to ON if you want to find the static libs
instead of default shared.

Adds the HTTPLIB_REQUIRE_BROTLI (default off) and HTTPLIB_USE_BROTLI_IF_AVAILABLE
(default on) options, which work in the same manner as the other optional/required
dependency options.

Moved the scattered linking and definitions to a single call.

Updated some documentation about the new options.

Improved the in-tree support by setting the HTTPLIB_IS_USING_XYZ
variables in the main CMakeLists (as well as having them in the
httplibConfig.cmake file).

Fixes #582
2020-07-28 17:04:29 -04:00

75 lines
3.1 KiB
CMake

# Generates a macro to auto-configure everything
@PACKAGE_INIT@
# Setting these here so they're accessible after install.
# Might be useful for some users to check which settings were used.
set(HTTPLIB_IS_USING_OPENSSL @HTTPLIB_IS_USING_OPENSSL@)
set(HTTPLIB_IS_USING_ZLIB @HTTPLIB_IS_USING_ZLIB@)
set(HTTPLIB_IS_COMPILED @HTTPLIB_COMPILE@)
set(HTTPLIB_IS_USING_BROTLI @HTTPLIB_IS_USING_BROTLI@)
set(HTTPLIB_VERSION @PROJECT_VERSION@)
include(CMakeFindDependencyMacro)
# We add find_dependency calls here to not make the end-user have to call them.
find_dependency(Threads REQUIRED)
if(@HTTPLIB_IS_USING_OPENSSL@)
# OpenSSL COMPONENTS were added in Cmake v3.11
if(CMAKE_VERSION VERSION_LESS "3.11")
find_dependency(OpenSSL @_HTTPLIB_OPENSSL_MIN_VER@ REQUIRED)
else()
# Once the COMPONENTS were added, they were made optional when not specified.
# Since we use both, we need to search for both.
find_dependency(OpenSSL @_HTTPLIB_OPENSSL_MIN_VER@ COMPONENTS Crypto SSL REQUIRED)
endif()
endif()
if(@HTTPLIB_IS_USING_ZLIB@)
find_dependency(ZLIB REQUIRED)
endif()
if(@HTTPLIB_IS_USING_BROTLI@)
# Needed so we can use our own FindBrotli.cmake in this file.
# Note that the FindBrotli.cmake file is installed in the same dir as this file.
list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}")
set(BROTLI_USE_STATIC_LIBS @BROTLI_USE_STATIC_LIBS@)
find_dependency(Brotli COMPONENTS common encoder decoder REQUIRED)
endif()
# Mildly useful for end-users
# Not really recommended to be used though
set_and_check(HTTPLIB_INCLUDE_DIR "@PACKAGE_CMAKE_INSTALL_FULL_INCLUDEDIR@")
# Lets the end-user find the header path with the header appended
# This is helpful if you're using Cmake's pre-compiled header feature
set_and_check(HTTPLIB_HEADER_PATH "@PACKAGE_CMAKE_INSTALL_FULL_INCLUDEDIR@/httplib.h")
# Brings in the target library
include("${CMAKE_CURRENT_LIST_DIR}/httplibTargets.cmake")
# Ouputs a "found httplib /usr/include/httplib.h" message when using find_package(httplib)
include(FindPackageMessage)
if(TARGET httplib::httplib)
set(HTTPLIB_FOUND TRUE)
# Since the compiled version has a lib, show that in the message
if(@HTTPLIB_COMPILE@)
# The list of configurations is most likely just 1 unless they installed a debug & release
get_target_property(_httplib_configs httplib::httplib "IMPORTED_CONFIGURATIONS")
# Need to loop since the "IMPORTED_LOCATION" property isn't want we want.
# Instead, we need to find the IMPORTED_LOCATION_RELEASE or IMPORTED_LOCATION_DEBUG which has the lib path.
foreach(_httplib_conf "${_httplib_configs}")
# Grab the path to the lib and sets it to HTTPLIB_LIBRARY
get_target_property(HTTPLIB_LIBRARY httplib::httplib "IMPORTED_LOCATION_${_httplib_conf}")
# Check if we found it
if(HTTPLIB_LIBRARY)
break()
endif()
endforeach()
unset(_httplib_configs)
unset(_httplib_conf)
find_package_message(httplib "Found httplib: ${HTTPLIB_LIBRARY} (found version \"${HTTPLIB_VERSION}\")" "[${HTTPLIB_LIBRARY}][${HTTPLIB_HEADER_PATH}]")
else()
find_package_message(httplib "Found httplib: ${HTTPLIB_HEADER_PATH} (found version \"${HTTPLIB_VERSION}\")" "[${HTTPLIB_HEADER_PATH}]")
endif()
endif()