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dnl ===========================================================================
dnl Helper macro to detect an optional binding
m4_defun([AC_OCAML_COMPARE_VERSION],
[if test -z "$2" ; then
VERSION_OK=yes
else
AS_VERSION_COMPARE([$1],[$2],
[VERSION_OK=],
[VERSION_OK=yes],
[VERSION_OK=yes])
fi])
m4_defun([AC_OCAML_CHECK_DEPS],
[dnl
m4_define([deps],[m4_translit([$1],['a-z'],['A-Z'])])
DEPS_CHECK=yes
for i in deps(); do
eval "dep_check=\$W_$i"
if test -z "${dep_check}"; then
DEPS_CHECK=
break
fi
done])
m4_defun([AC_MSG_RESULT_NOT],
[ifelse([$1],[],[AC_MSG_RESULT($2)],[AC_MSG_ERROR($2)])])
AC_DEFUN([AC_CHECK_OCAML_BINDING],[dnl
m4_define([BINDING],[m4_translit([$1],['a-z.-'],['A-Z__'])])
m4_define([binding],[m4_translit([$1],['A-Z.-'],['a-z__'])])
dnl $1 = PKG_NAME
dnl $2 = PKG_VERSION
dnl $3 = PKG_DEPS
dnl $4 = PKG_MANDATORY
dnl $5 = PKG_USED (for instance sdl.mixer au lieu of sdl. Should only be used for bindings not provided by us..)
dnl $6 = PKG_CMA (used for duppy.syntax and flac.ogg when locally compiled..)
if test -n "$5"; then
BINDING_PKGS="$5"
else
BINDING_PKGS="$1"
fi
AC_ARG_WITH([binding()-dir],
AC_HELP_STRING(
[--with-binding()-dir=path],
[look for ocaml-binding() library in "path" (autodetected by default)]))
dnl Version stuff
m4_define([VERSION_CHECK],[ifelse([$2],[],[],[ >= $2])])
AC_MSG_CHECKING([for ocaml $1 module[]VERSION_CHECK()])
OCAML_CHECK="${OCAMLFIND} query $1"
dnl This (horrible) macro does the following:
dnl Detect optional binding
dnl If provided by ocamlfind,
dnl fills liquidsoap_ocamlcflags with "-package deps" for
dnl each dependency
dnl If provided by us, fills
dnl liquidsoap_ocamlcflags with "-I /path/to/ocaml-foo/src"
dnl and liquidsoap_ocamllfflags with "foo.cmxa"
AC_OCAML_CHECK_DEPS([$3])
if test -z $DEPS_CHECK; then
AC_MSG_RESULT([[]binding() needs $3])
else
if test -z "${with_[]binding()_dir}" ; then
if ! ${OCAML_CHECK} > /dev/null 2>&1 ; then
AC_MSG_RESULT_NOT([$4],[Not found.])
else
BINDING()_version="`${OCAMLFIND} query -format "%v" $1 2>/dev/null`"
AC_OCAML_COMPARE_VERSION([${[]BINDING()_version}],[$2])
if test -z "${VERSION_OK}"; then
AC_MSG_RESULT_NOT([$4],[requires version >= $2 found ${[]BINDING()_version}.])
else
BINDING()_PACKAGES="`${OCAMLFIND} query -separator " " -format "-package %p" $BINDING_PKGS 2>/dev/null`"
liquidsoap_ocamlcflags="${liquidsoap_ocamlcflags} ${[]BINDING()_PACKAGES}"
W_[]BINDING()=yes
LIBS_VERSIONS="${LIBS_VERSIONS} $1=$[]BINDING()_version"
AC_MSG_RESULT(ok)
fi
fi
else
BINDING()_STOP_CHECK=
BINDING()_version=changequote({,})"[unknown version]"changequote([,])
BINDING()_requires=
if test -r ${with_[]binding()_dir}/META >/dev/null 2>&1; then
# Grab version
BINDING()_version=`cat "${with_[]binding()_dir}/META" | grep version | cut -d'=' -f 2 | tr -d ' ' | tr -d '"' | head -n 1`
AC_OCAML_COMPARE_VERSION([${[]BINDING()_version}],[$2])
if test -z "${VERSION_OK}"; then
AC_MSG_RESULT_NOT([$4],[requires version >= $2 found ${[]BINDING()_version}.])
BINDING()_STOP_CHECK=yes
fi
BINDING()_requires=`cat "${with_[]binding()_dir}/META" | grep 'requires' | cut -d '=' -f 2 | tr -d '"'`
BINDING()_path="${with_[]binding()_dir}"
else
BINDING()_path=`${OCAMLFIND} -query $1 2>/dev/null`
if ! test -z "$2"; then
AC_MSG_RESULT_NOT([$4],[cannot find version from META file.])
BINDING()_STOP_CHECK=yes
fi
fi
if test -z "${BINDING()_STOP_CHECK}"; then
BINDING()_PACKAGES="`${OCAMLFIND} query -separator " " -format "-package %p" $BINGING_PKGS 2>/dev/null`"
echo ${with_[]binding()_dir} | grep ^/ > /dev/null 2>&1 \
|| with_[]binding()_dir=${PWD}/${with_[]binding()_dir}
liquidsoap_ocamlcflags="${liquidsoap_ocamlcflags} -I ${with_[]binding()_dir} ${[]BINDING()_PACKAGES}"
# We need to recurse here because
# some package may not be registered using ocamlfind
if test -n "$6"; then
BINDING()_CMA=$6.${cma}
else
BINDING()_CMA=$1.${cma}
fi
for i in ${[]BINDING()_requires}; do
BINDING()_PACKAGES="${[]BINDING()_PACKAGES} `${OCAMLFIND} query -separator " " -format "-package %p" $i 2>/dev/null`"
done
liquidsoap_ocamllflags="${liquidsoap_ocamllflags} ${[]BINDING()_PACKAGES} ${[]BINDING()_CMA}"
W_[]BINDING()=yes
LIBS_VERSIONS="${LIBS_VERSIONS} $1=$[]BINDING()_version"
AC_MSG_RESULT(ok)
fi
fi
fi
AC_SUBST(W_[]BINDING())
if test -z "${W_[]BINDING()}" ; then
w_[]BINDING()="no (requires $1)"
else
w_[]BINDING()=yes
fi])
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