+ LIBS="${LIBS} ${BOOST_LIB}"
+ AC_LANG_CONFTEST(
+ [AC_LANG_SOURCE([[
+#include <boost/version.hpp>
+version_is:BOOST_VERSION
+]])])
+ BOOST_GOT_VERSION=`(eval "$ac_cpp conftest.$ac_ext") 2>&AS_MESSAGE_LOG_FD | $EGREP version_is 2>/dev/null | cut -d ":" -f2`
+ if test -z "$BOOST_GOT_VERSION" -o \
+ "$BOOST_GOT_VERSION" = "BOOST_VERSION"; then
+ AC_MSG_RESULT([no])
+ AC_MSG_ERROR([Boost development libraries required])
+ fi
+ AC_MSG_RESULT([yes ($BOOST_GOT_VERSION)])
+ if test "$BOOST_GOT_VERSION" -lt $BOOST_REQ_VERSION; then
+ AC_MSG_ERROR([Boost version $BOOST_REQ_VERSION required])
+ fi
+ for c in $1; do
+ case $c in
+ thread)
+ if test "$BOOST_GOT_VERSION" -ge 104100; then
+ AC_MSG_CHECKING([Boost threads + system])
+ else
+ AC_MSG_CHECKING([Boost threads])
+ fi
+ AC_SUBST([BOOST_THREAD_LIB])
+ saveLIBS="${LIBS}"
+ BOOST_THREAD_LIB=""
+ for l in ${BOOST_TOOLSET}-mt ${BOOST_TOOLSET}; do
+ trylib="-lboost_thread${l}"
+ if test "$BOOST_GOT_VERSION" -ge 104100; then
+ trylib="-lboost_system${l} ${trylib}"
+ fi
+ LIBS="${saveLIBS} ${trylib}"
+ AC_LINK_IFELSE([AC_LANG_PROGRAM([[