Use vanilla Expat sources #5178
Description
Due to the frequent Expat releases, we should include the expat sources as they are.
The existing changes, which have been made to use Poco's random number support instead of that built into expat can be removed. However, the correct random number implementation for expat must be specified at build time.
if(POCO_UNBUNDLED)
target_link_libraries(XML PUBLIC EXPAT::EXPAT)
target_compile_definitions(XML PUBLIC POCO_UNBUNDLED)
else()
if(WIN32)
#TODO: Is XML_STATIC only required with Windows? What does it do?
target_compile_definitions(XML PUBLIC XML_STATIC)
elseif(APPLE OR BSD)
target_compile_definitions(XML PRIVATE HAVE_ARC4RANDOM_BUF)
elseif(LINUX)
target_compile_definitions(XML PRIVATE HAVE_GETRANDOM)
else()
target_compile_definitions(XML PRIVATE XML_DEV_URANDOM)
endif()
target_compile_definitions(XML
PUBLIC XML_DTD
PRIVATE XML_NS HAVE_EXPAT_CONFIG_H)
endif()