Consider the BUILD_SHARED_LIBS value when creating Qt libraries.
This policy was introduced in Qt 6.7. The policy affects the default type of the libraries created using Qt CMake API , like qt_add_library , qt_add_plugin , qt_add_qml_module .
If the policy is set to
OLD
, the default library type that is selected is aligned with the Qt build type, either
shared
or
static
.
If the policy is set to
NEW
, the library type is selected according to the
BUILD_SHARED_LIBS
value if it's set. If
BUILD_SHARED_LIBS
is not set, the default library type falls back to the Qt build type.
For example, the following code will use the Qt build type as the default library type for the
MyLib
target, despite the fact
BUILD_SHARED_LIBS
被设为
ON
:
set(BUILD_SHARED_LIBS ON) ... qt6_add_library(MyLib sourcefile.h sourcefile.cpp)
If you set the QTP0003 to
NEW
先于
qt_add_library
call,
BUILD_SHARED_LIBS
will affect the library default type and
MyLib
will be the shared library.
set(BUILD_SHARED_LIBS ON) ... qt_policy(SET QTP0003 NEW) qt6_add_library(MyLib sourcefile.h sourcefile.cpp)
另请参阅 qt_policy , Qt CMake 策略 ,和 qt_add_library .