AUTOMOC_PATH_PREFIX¶
New in version 3.16.
When this property is ON, CMake will generate the -p path prefix
option for moc on AUTOMOC enabled Qt targets.
To generate the path prefix, CMake tests if the header compiled by moc
is in any of the target
include directories. If so, CMake will
compute the relative path accordingly. If the header is not in the
include directories, CMake will omit
the -p path prefix option. moc usually generates a
relative include path in that case.
AUTOMOC_PATH_PREFIX is initialized from the variable
CMAKE_AUTOMOC_PATH_PREFIX, which is OFF by default.
See the cmake-qt(7) manual for more information on using CMake
with Qt.
Reproducible builds¶
For reproducible builds it is recommended to keep headers that are moc
compiled in one of the target
include directories and set
AUTOMOC_PATH_PREFIX to ON. This ensures that:
mocoutput files are identical on different build setups,mocoutput files will compile correctly when the source and/or build directory is a symbolic link.