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CMakePM: Fix compile for gcc 7

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Due to a compiler bug the content of the raw string is
handled inside the preprocessor and the cmake comments
end up as being noticed as unknown preprocessor directives.

Change-Id: I3f235cfdd0799a6bb94743e2910663d9b0d3385d
Reviewed-by: Cristian Adam <cristian.adam@qt.io>
This commit is contained in:
Christian Stenger
2021-04-28 11:23:56 +02:00
parent a547b82075
commit ca04d9afcd
1 changed files with 30 additions and 29 deletions
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59
src/plugins/cmakeprojectmanager/cmakeprojectimporter.cpp
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@@ -166,35 +166,36 @@ static FilePath qmakeFromCMakeCache(const CMakeConfig &config)
if (!cmakeListTxt.open(QIODevice::WriteOnly)) {
return FilePath();
}
cmakeListTxt.write(QByteArray(R"(
cmake_minimum_required(VERSION 3.15)
project(qmake-probe LANGUAGES NONE)
# Bypass Qt6's usage of find_dependency, which would require compiler
# and source code probing, which slows things unnecessarily
file(WRITE "${CMAKE_SOURCE_DIR}/CMakeFindDependencyMacro.cmake"
[=[
macro(find_dependency dep)
endmacro()
]=])
set(CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}")
find_package(QT NAMES Qt6 Qt5 COMPONENTS Core REQUIRED)
find_package(Qt${QT_VERSION_MAJOR} COMPONENTS Core REQUIRED)
if (CMAKE_CROSSCOMPILING)
find_program(qmake_binary
NAMES qmake qmake.bat
PATHS "${Qt${QT_VERSION_MAJOR}_DIR}/../../../bin"
NO_DEFAULT_PATH)
file(WRITE "${CMAKE_SOURCE_DIR}/qmake-location.txt" "${qmake_binary}")
else()
file(GENERATE
OUTPUT "${CMAKE_SOURCE_DIR}/qmake-location.txt"
CONTENT "$<TARGET_PROPERTY:Qt${QT_VERSION_MAJOR}::qmake,IMPORTED_LOCATION>")
endif()
)"));
// FIXME replace by raw string when gcc 8+ is minimum
cmakeListTxt.write(QByteArray(
"cmake_minimum_required(VERSION 3.15)\n"
"\n"
"project(qmake-probe LANGUAGES NONE)\n"
"\n"
"# Bypass Qt6's usage of find_dependency, which would require compiler\n"
"# and source code probing, which slows things unnecessarily"
"file(WRITE \"${CMAKE_SOURCE_DIR}/CMakeFindDependencyMacro.cmake\"\n"
"[=["
" macro(find_dependency dep)\n"
" endmacro()\n"
"]=])\n"
"set(CMAKE_MODULE_PATH \"${CMAKE_SOURCE_DIR}\")\n"
"\n"
"find_package(QT NAMES Qt6 Qt5 COMPONENTS Core REQUIRED)\n"
"find_package(Qt${QT_VERSION_MAJOR} COMPONENTS Core REQUIRED)\n"
"\n"
"if (CMAKE_CROSSCOMPILING)\n"
" find_program(qmake_binary\n"
" NAMES qmake qmake.bat\n"
" PATHS \"${Qt${QT_VERSION_MAJOR}_DIR}/../../../bin\"\n"
" NO_DEFAULT_PATH)\n"
" file(WRITE \"${CMAKE_SOURCE_DIR}/qmake-location.txt\" \"${qmake_binary}\")\n"
"else()\n"
" file(GENERATE\n"
" OUTPUT \"${CMAKE_SOURCE_DIR}/qmake-location.txt\"\n"
" CONTENT \"$<TARGET_PROPERTY:Qt${QT_VERSION_MAJOR}::qmake,IMPORTED_LOCATION>\")\n"
"endif()\n"
));
cmakeListTxt.close();
SynchronousProcess cmake;