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AX_PROG_GUILE_VERSION([VERSION],[ACTION-IF-TRUE],[ACTION-IF-FALSE])
Makes sure that guile supports the version indicated. If true the shell commands in ACTION-IF-TRUE are executed. If not the shell commands in ACTION-IF-FALSE are run. Note if $GUILE is not set (for example by running AC_CHECK_PROG or AC_PATH_PROG),
Example:
AC_PATH_PROG([GUILE],[guile]) AC_PROG_GUILE_VERSION([1.6.0],[ ... ],[ ... ])
This will check to make sure that the guile you have supports at least version 1.6.0.
NOTE: This macro uses the $GUILE variable to perform the check. AX_WITH_GUILE can be used to set that variable prior to running this macro. The $GUILE_VERSION variable will be valorized with the detected version.
Francesco Salvestrini <salvestrini@users.sourceforge.net>
2008-04-12
AC_DEFUN([AX_PROG_GUILE_VERSION],[ AC_REQUIRE([AC_PROG_SED]) AS_IF([test -n "$GUILE"],[ ax_guile_version="$1" AC_MSG_CHECKING([for guile version]) changequote(<<,>>) guile_version=`$GUILE -q --version 2>&1 | head -n 1 | $SED -e 's/.* \([0-9]*\.[0-9]*\.[0-9]*\)/\1/'` changequote([,]) AC_MSG_RESULT($guile_version) AC_SUBST([GUILE_VERSION],[$guile_version]) AX_COMPARE_VERSION([$ax_guile_version],[le],[$guile_version],[ : $2 ],[ : $3 ]) ],[ AC_MSG_WARN([could not find the guile interpreter]) $3 ]) ])
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