Files
libguestfs/m4/guestfs-ocaml.m4
Richard W.M. Jones 2ad3f1ca5d build: No longer check for ocamldep -one-line and -all options
These were added to ocamldep in Jan 2012, over 10 years ago.  They
were not present in RHEL 6, but we don't care about that now.

(cherry picked from virt-v2v commit f6108bbd661d3e922d07b47f00daa901ab846e59)

(cherry picked from commit 0a2d43988f)
2022-05-12 14:46:56 +01:00

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# libguestfs
# Copyright (C) 2009-2020 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 >= 4.04 is required.
ocaml_ver_str=4.04
ocaml_min_major=4
ocaml_min_minor=4
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 $OCAMLOPT conftest.ml -runtime-variant _pic -o conftest >&5 2>&5 ; then
AC_MSG_RESULT([yes])
OCAML_RUNTIME_VARIANT_PIC_OPTION="-runtime-variant _pic"
else
AC_MSG_RESULT([no])
fi
rm -f conftest.ml contest
fi
AC_SUBST([OCAML_RUNTIME_VARIANT_PIC_OPTION])
have_Hivex_OPEN_UNSAFE=no
if test "x$enable_daemon" = "xyes"; then
OCAML_PKG_hivex=no
AC_CHECK_OCAML_PKG(hivex)
if test "x$OCAML_PKG_hivex" = "xno"; then
AC_MSG_ERROR([the OCaml module 'hivex' is required])
fi
# Check if Hivex has 'OPEN_UNSAFE' flag.
AC_MSG_CHECKING([for Hivex.OPEN_UNSAFE])
rm -f conftest.ml
echo 'let s = Hivex.OPEN_UNSAFE' > conftest.ml
if $OCAMLFIND ocamlc -package hivex -c conftest.ml >&5 2>&5 ; then
AC_MSG_RESULT([yes])
have_Hivex_OPEN_UNSAFE=yes
else
AC_MSG_RESULT([no])
have_Hivex_OPEN_UNSAFE=no
fi
dnl Check which OCaml runtime to link the daemon again.
dnl We can't use AC_CHECK_LIB here unfortunately because
dnl the other symbols are resolved by OCaml itself.
AC_MSG_CHECKING([which OCaml runtime we should link the daemon with])
if test "x$OCAMLOPT" != "xno"; then
for f in asmrun_pic asmrun; do
if test -f "$OCAMLLIB/lib$f.a"; then
CAMLRUN=$f
break
fi
done
else
for f in camlrun; do
if test -f "$OCAMLLIB/lib$f.a"; then
CAMLRUN=$f
break
fi
done
fi
if test "x$CAMLRUN" != "x"; then
AC_MSG_RESULT([$CAMLRUN])
else
AC_MSG_ERROR([could not find or link to libasmrun or libcamlrun])
fi
AC_SUBST([CAMLRUN])
fi
dnl Define HIVEX_OPEN_UNSAFE_FLAG based on test above.
AS_IF([test "x$have_Hivex_OPEN_UNSAFE" = "xno"],[
HIVEX_OPEN_UNSAFE_FLAG="None"
],[
HIVEX_OPEN_UNSAFE_FLAG="Some Hivex.OPEN_UNSAFE"
])
AC_SUBST([HIVEX_OPEN_UNSAFE_FLAG])
OCAML_PKG_gettext=no
OCAML_PKG_ounit2=no
ounit_is_v2=no
AS_IF([test "x$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])