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SET(BOOST_VERSION 0)
SET(BOOST_MAJOR_VERSION 0)
SET(BOOST_MINOR_VERSION 0)
SET(BOOST_SUBMINOR_VERSION 0)
SET(BOOST_LIB_VERSION "")
IF(Boost_INCLUDE_DIR AND EXISTS "${Boost_INCLUDE_DIR}/boost/version.hpp")
# Read the whole file:
#
FILE(READ "${Boost_INCLUDE_DIR}/boost/version.hpp" BOOST_VERSION_HPP_CONTENTS)
# Split it into lines:
#
STRING(REGEX REPLACE ";" "\\\\;" BOOST_VERSION_HPP_CONTENTS "${BOOST_VERSION_HPP_CONTENTS}")
STRING(REGEX REPLACE "\n" "EOL;" BOOST_VERSION_HPP_CONTENTS "${BOOST_VERSION_HPP_CONTENTS}")
FOREACH(line ${BOOST_VERSION_HPP_CONTENTS})
# Save BOOST_VERSION:
#
IF("${line}" MATCHES "^#define BOOST_VERSION ([0-9]+).*EOL$")
STRING(REGEX REPLACE
"^#define BOOST_VERSION ([0-9]+).*EOL$" "\\1"
BOOST_VERSION "${line}")
ENDIF()
# And BOOST_LIB_VERSION:
#
IF("${line}" MATCHES "^#define BOOST_LIB_VERSION \"([0-9_]+)\".*EOL$")
STRING(REGEX REPLACE
"^#define BOOST_LIB_VERSION \"([0-9_]+)\".*EOL$" "\\1"
BOOST_LIB_VERSION "${line}")
ENDIF()
ENDFOREACH()
# Compute major, minor and subminor versions according to comments in
# boost/version.hpp:
#
IF(NOT "${BOOST_VERSION}" STREQUAL "0")
MATH(EXPR BOOST_MAJOR_VERSION "${BOOST_VERSION} / 100000")
MATH(EXPR BOOST_MINOR_VERSION "${BOOST_VERSION} / 100 % 1000")
MATH(EXPR BOOST_SUBMINOR_VERSION "${BOOST_VERSION} % 100")
ENDIF()
ENDIF()
#MESSAGE("BOOST_VERSION='${BOOST_VERSION}'")
#MESSAGE("BOOST_MAJOR_VERSION='${BOOST_MAJOR_VERSION}'")
#MESSAGE("BOOST_MINOR_VERSION='${BOOST_MINOR_VERSION}'")
#MESSAGE("BOOST_SUBMINOR_VERSION='${BOOST_SUBMINOR_VERSION}'")
#MESSAGE("BOOST_LIB_VERSION='${BOOST_LIB_VERSION}'")
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