dolphin/CMake/CheckVendoringApproved.cmake
Pierre Bourdon 143131a6a1
cmake: add an option to control dependencies vendoring
Disable by default, to be used by distributions who care to try and
prefer system-wide libraries when available. It makes sense for us to
keep using vendored libs by default when possible to make it easier for
users to compile, but we should provide appropriate tools for distro to
figure out which dependencies they can share with the rest of the
system.
2020-05-10 09:34:14 +02:00

30 lines
1.1 KiB
CMake

# When packaging Dolphin for an OS distribution, distro vendors usually prefer
# to limit vendored ("Externals") dependencies as much as possible, in favor of
# using system provided libraries. This modules provides an option to allow
# only specific vendored dependencies and error-out at configuration time for
# non-approved ones.
#
# Usage:
# $ cmake -D APPROVED_VENDORED_DEPENDENCIES="a;b;c;..."
#
# Unless the option is explicitly used, vendored dependencies control is
# disabled.
#
# If you want to disallow all vendored dependencies, put "none" in the approved
# dependencies list.
set(APPROVED_VENDORED_DEPENDENCIES "" CACHE STRING "\
Semicolon separated list of approved vendored dependencies. See docstring in \
CMake/CheckVendoringApproved.cmake.")
function(check_vendoring_approved dep)
if(APPROVED_VENDORED_DEPENDENCIES)
if(NOT dep IN_LIST APPROVED_VENDORED_DEPENDENCIES)
message(SEND_ERROR "\
Library ${dep} was not found systemwide and was not approved for vendoring. \
Vendored dependencies control is enabled. Add \"${dep}\" to the \
APPROVED_VENDORED_DEPENDENCIES list to bypass this error.")
endif()
endif()
endfunction()