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# libguestfs
# Copyright (C) 2009-2023 Red Hat Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
dnl Check for OCaml (required, for OCaml bindings and OCaml tools).
dnl OCAMLC and OCAMLFIND have to be unset first, otherwise
dnl AC_CHECK_TOOL (inside AC_PROG_OCAML) will not look.
OCAMLC=
OCAMLFIND=
AC_PROG_OCAML
AC_PROG_FINDLIB
AS_IF([test "x$OCAMLC" = "xno"],[
AC_MSG_ERROR([OCaml compiler is required])
])
AS_IF([test "x$OCAMLFIND" = "xno"],[
AC_MSG_ERROR([OCaml findlib is required])
])
dnl --disable-ocaml only disables OCaml bindings and OCaml virt tools.
AC_ARG_ENABLE([ocaml],
AS_HELP_STRING([--disable-ocaml], [disable OCaml language bindings and tools]),
[],
[enable_ocaml=yes])
dnl OCaml >= 4.07 is required.
ocaml_ver_str=4.07
ocaml_min_major=4
ocaml_min_minor=7
AC_MSG_CHECKING([if OCaml version >= $ocaml_ver_str])
ocaml_major="`echo $OCAMLVERSION | $AWK -F. '{print $1}'`"
ocaml_minor="`echo $OCAMLVERSION | $AWK -F. '{print $2}' | sed 's/^0//'`"
AS_IF([test "$ocaml_major" -ge $((ocaml_min_major+1)) || ( test "$ocaml_major" -eq $ocaml_min_major && test "$ocaml_minor" -ge $ocaml_min_minor )],[
AC_MSG_RESULT([yes ($ocaml_major, $ocaml_minor)])
],[
AC_MSG_RESULT([no])
AC_MSG_FAILURE([OCaml compiler is not new enough. At least OCaml $ocaml_ver_str is required])
])
AM_CONDITIONAL([HAVE_OCAML],
[test "x$enable_ocaml" != "xno"])
AM_CONDITIONAL([HAVE_OCAMLOPT],
[test "x$OCAMLOPT" != "xno"])
AM_CONDITIONAL([HAVE_OCAMLDOC],
[test "x$OCAMLDOC" != "xno"])
dnl Check if ocamlc/ocamlopt -runtime-variant _pic works. It was
dnl added in OCaml >= 4.03, but in theory might be disabled by
dnl downstream distros.
OCAML_RUNTIME_VARIANT_PIC_OPTION=""
if test "x$OCAMLC" != "xno"; then
AC_MSG_CHECKING([if OCaml ‘-runtime-variant _pic’ works])
rm -f conftest.ml contest
echo 'print_endline "hello world"' > conftest.ml
if $OCAMLOPT conftest.ml -runtime-variant _pic -o conftest >&5 2>&5 ; then
AC_MSG_RESULT([yes])
OCAML_RUNTIME_VARIANT_PIC_OPTION="-runtime-variant _pic"
else
AC_MSG_RESULT([no])
fi
rm -f conftest.ml contest
fi
AC_SUBST([OCAML_RUNTIME_VARIANT_PIC_OPTION])
# Check for OCaml libguestfs bindings.
OCAML_PKG_guestfs=no
AC_CHECK_OCAML_PKG(guestfs)
if test "x$OCAML_PKG_guestfs" = "xno"; then
AC_MSG_ERROR([the OCaml module 'guestfs' is required])
fi
OCAML_PKG_gettext=no
OCAML_PKG_ounit2=no
ounit_is_v2=no
AS_IF([test "x$OCAMLC" != "xno"],[
# Create common/mlgettext/common_gettext.ml gettext functions or stubs.
# If we're building in a different directory, then common/mlgettext
# might not exist yet, so create it:
mkdir -p common/mlgettext
GUESTFS_CREATE_COMMON_GETTEXT_ML([common/mlgettext/common_gettext.ml])
AC_CHECK_OCAML_PKG(ounit2)
# oUnit >= 2 is required, so check that it has OUnit2.
if test "x$OCAML_PKG_ounit2" != "xno"; then
AC_CHECK_OCAML_MODULE(ounit_is_v2,[OUnit.OUnit2],OUnit2,[+ounit2])
fi
])
AM_CONDITIONAL([HAVE_OCAML_PKG_GETTEXT],
[test "x$OCAML_PKG_gettext" != "xno"])
AM_CONDITIONAL([HAVE_OCAML_PKG_OUNIT],
[test "x$OCAML_PKG_ounit2" != "xno" && test "x$ounit_is_v2" != "xno"])
AC_CHECK_PROG([OCAML_GETTEXT],[ocaml-gettext],[ocaml-gettext],[no])
AM_CONDITIONAL([HAVE_OCAML_GETTEXT],
[test "x$OCAML_PKG_gettext" != "xno" && test "x$OCAML_GETTEXT" != "xno"])
dnl Check if OCaml has caml_alloc_initialized_string (added 2017).
AS_IF([test "x$OCAMLC" != "xno" && test "x$OCAMLFIND" != "xno" && \
test "x$enable_ocaml" = "xyes"],[
AC_MSG_CHECKING([for caml_alloc_initialized_string])
cat >conftest.c <<'EOF'
#include <caml/alloc.h>
int main () { char *p = (void *) caml_alloc_initialized_string; return 0; }
EOF
AS_IF([$OCAMLC conftest.c >&AS_MESSAGE_LOG_FD 2>&1],[
AC_MSG_RESULT([yes])
AC_DEFINE([HAVE_CAML_ALLOC_INITIALIZED_STRING],[1],
[caml_alloc_initialized_string found at compile time.])
],[
AC_MSG_RESULT([no])
])
rm -f conftest.c conftest.o
])
dnl Flags we want to pass to every OCaml compiler call.
OCAML_WARN_ERROR="-warn-error +C+D+E+F+L+M+P+S+U+V+Y+Z+X+52-3-6 -w -6"
AC_SUBST([OCAML_WARN_ERROR])
OCAML_FLAGS="-g -annot $safe_string_option"
AC_SUBST([OCAML_FLAGS])
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