Change VCPKG_FIXUP_ELF_RPATH inside a port

[asfernandes]

I'm writing a port and testing with linux-x64-dynamic. VCPKG_FIXUP_ELF_RPATH is causing a problem with this package, that already defines $ORIGIN-based rpath and is relocatable.

Is it safe to set(VCPKG_FIXUP_ELF_RPATH OFF) inside a portfile.cmake without it interfere with other ports?

[Osyotr]

Yes, portfile is included after triplet.

[asfernandes]

If VCPKG_FIXUP_ELF_RPATH is set in one port, is it "restored" to not interfere in another?

I tried to manually restore (to ON) it in the end of my port, but then it's likely it was not set to ON in the start.

[Osyotr]

ports.cmake is executed for each port separately.

vcpkg/scripts/ports.cmake

Lines 153 to 173 in eb33d2f

	include("${CMAKE_TRIPLET_FILE}")
	set(HOST_TRIPLET "${_HOST_TRIPLET}")
	set(CURRENT_HOST_INSTALLED_DIR "${_VCPKG_INSTALLED_DIR}/${HOST_TRIPLET}" CACHE PATH "Location to install final packages for the host")
	set(TRIPLET_SYSTEM_ARCH "${VCPKG_TARGET_ARCHITECTURE}")
	include("${SCRIPTS}/cmake/vcpkg_common_definitions.cmake")
	if (DEFINED VCPKG_PORT_CONFIGS)
	foreach(VCPKG_PORT_CONFIG IN LISTS VCPKG_PORT_CONFIGS)
	include("${VCPKG_PORT_CONFIG}")
	endforeach()
	endif()
	set(Z_VCPKG_ERROR_LOG_COLLECTION_FILE "${CURRENT_BUILDTREES_DIR}/error-logs-${TARGET_TRIPLET}.txt")
	file(REMOVE "${Z_VCPKG_ERROR_LOG_COLLECTION_FILE}")
	include("${CURRENT_PORT_DIR}/portfile.cmake")
	if(DEFINED PORT)
	if(VCPKG_FIXUP_ELF_RPATH)
	include("${SCRIPTS}/cmake/z_vcpkg_fixup_rpath.cmake")