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sdrangel/cmake/Modules/QtLocator.cmake
2020-11-04 01:35:00 +01:00

49 lines
1.7 KiB
CMake

SET(QT_MISSING True)
# msvc only; mingw will need different logic
IF(MSVC)
# look for user-registry pointing to qtcreator
GET_FILENAME_COMPONENT(QT_BIN [HKEY_CURRENT_USER\\Software\\Classes\\Applications\\QtProject.QtCreator.pro\\shell\\Open\\Command] PATH)
# get root path so we can search for 5.10, 5.11, 5.12, etc
STRING(REPLACE "/Tools" ";" QT_BIN "${QT_BIN}")
LIST(GET QT_BIN 0 QT_BIN)
FILE(GLOB QT_VERSIONS "${QT_BIN}/5.1*")
LIST(SORT QT_VERSIONS)
# assume the latest version will be last alphabetically
LIST(REVERSE QT_VERSIONS)
LIST(GET QT_VERSIONS 0 QT_VERSION)
# fix any double slashes which seem to be common
STRING(REPLACE "//" "/" QT_VERSION "${QT_VERSION}")
# do some math trickery to guess folder
# - qt uses (e.g.) "msvc2012"
# - cmake uses (e.g.) "1800"
# - see also https://cmake.org/cmake/help/v3.0/variable/MSVC_VERSION.html
# checkcompiler version
if(MSVC_VERSION GREATER 1910 AND MSVC_VERSION LESS 1919)
set(QT_MSVC 2017)
elseif(MSVC_VERSION GREATER 1899 AND MSVC_VERSION LESS 1910)
set(QT_MSVC 2015)
else()
MATH(EXPR QT_MSVC "2000 + (${MSVC_VERSION} - 600) / 100")
endif()
# check for 64-bit os
# may need to be removed for older compilers as it wasn't always offered
IF(CMAKE_SYSTEM_PROCESSOR MATCHES 64)
SET(QT_MSVC "${QT_MSVC}_64")
ENDIF()
SET(QT_PATH "${QT_VERSION}/msvc${QT_MSVC}")
SET(QT_MISSING False)
ENDIF()
# use Qt_DIR approach so you can find Qt after cmake has been invoked
IF(NOT QT_MISSING)
MESSAGE("-- Qt found: ${QT_PATH}")
SET(Qt5_DIR "${QT_PATH}/lib/cmake/Qt5/")
SET(Qt5Test_DIR "${QT_PATH}/lib/cmake/Qt5Test")
ENDIF()