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externals: allow users to use system JSON headers (nlohmann-json3) (#7042)

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Castor215 2023-10-04 22:32:43 +01:00 committed by GitHub
parent 72ff0c5337
commit 483e877001
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2 changed files with 11 additions and 1 deletions
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1
CMakeLists.txt
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@ -96,6 +96,7 @@ option(USE_SYSTEM_LIBUSB "Use the system libusb (instead of the bundled libusb)"
option(USE_SYSTEM_CPP_JWT "Use the system cpp-jwt (instead of the bundled one)" OFF)
option(USE_SYSTEM_SOUNDTOUCH "Use the system SoundTouch (instead of the bundled one)" OFF)
option(USE_SYSTEM_CPP_HTTPLIB "Use the system cpp-httplib (instead of the bundled one)" OFF)
option(USE_SYSTEM_JSON "Use the system JSON (nlohmann-json3) package (instead of the bundled one)" OFF)
if (CITRA_USE_PRECOMPILED_HEADERS)
message(STATUS "Using Precompiled Headers.")

11
externals/CMakeLists.txt vendored
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@ -175,7 +175,16 @@ endif()
# JSON
add_library(json-headers INTERFACE)
target_include_directories(json-headers INTERFACE ./json)
if (USE_SYSTEM_JSON)
find_package(nlohmann_json REQUIRED)
target_link_libraries(json-headers INTERFACE nlohmann_json::nlohmann_json)
get_target_property(NLOHMANN_PREFIX nlohmann_json::nlohmann_json INTERFACE_INCLUDE_DIRECTORIES)
# The nlohmann-json3 package expects "#include <nlohmann/json.hpp>"
# Citra uses "#include <json.hpp>" so we have to add this manually
target_include_directories(json-headers SYSTEM INTERFACE "${NLOHMANN_PREFIX}/nlohmann")
else()
target_include_directories(json-headers SYSTEM INTERFACE ./json)
endif()
# OpenSSL
if (USE_SYSTEM_OPENSSL)