Add ocaml.m4

diff --git a/m4/ocaml.m4 b/m4/ocaml.m4
new file mode 100644 (file)
index 0000000..479f3a8
--- /dev/null
+++ b/m4/ocaml.m4
@@ -0,0 +1,240 @@
+dnl autoconf macros for OCaml
+dnl
+dnl Copyright © 2009      Richard W.M. Jones
+dnl Copyright © 2009      Stefano Zacchiroli
+dnl Copyright © 2000-2005 Olivier Andrieu
+dnl Copyright © 2000-2005 Jean-Christophe Filliâtre
+dnl Copyright © 2000-2005 Georges Mariano
+dnl
+dnl For documentation, please read the ocaml.m4 man page.
+
+AC_DEFUN([AC_PROG_OCAML],
+[dnl
+  # checking for ocamlc
+  AC_CHECK_TOOL([OCAMLC],[ocamlc],[no])
+
+  if test "$OCAMLC" != "no"; then
+     OCAMLVERSION=`$OCAMLC -v | sed -n -e 's|.*version* *\(.*\)$|\1|p'`
+     AC_MSG_RESULT([OCaml version is $OCAMLVERSION])
+     # If OCAMLLIB is set, use it
+     if test "$OCAMLLIB" = ""; then
+        OCAMLLIB=`$OCAMLC -where 2>/dev/null || $OCAMLC -v|tail -1|cut -d ' ' -f 4`
+     else
+        AC_MSG_RESULT([OCAMLLIB previously set; preserving it.])
+     fi
+     AC_MSG_RESULT([OCaml library path is $OCAMLLIB])
+
+     AC_SUBST([OCAMLVERSION])
+     AC_SUBST([OCAMLLIB])
+
+     # checking for ocamlopt
+     AC_CHECK_TOOL([OCAMLOPT],[ocamlopt],[no])
+     OCAMLBEST=byte
+     if test "$OCAMLOPT" = "no"; then
+       AC_MSG_WARN([Cannot find ocamlopt; bytecode compilation only.])
+     else
+       TMPVERSION=`$OCAMLOPT -v | sed -n -e 's|.*version* *\(.*\)$|\1|p' `
+       if test "$TMPVERSION" != "$OCAMLVERSION" ; then
+           AC_MSG_RESULT([versions differs from ocamlc; ocamlopt discarded.])
+           OCAMLOPT=no
+       else
+           OCAMLBEST=opt
+       fi
+     fi
+
+     AC_SUBST([OCAMLBEST])
+
+     # checking for ocamlc.opt
+     AC_CHECK_TOOL([OCAMLCDOTOPT],[ocamlc.opt],[no])
+     if test "$OCAMLCDOTOPT" != "no"; then
+       TMPVERSION=`$OCAMLCDOTOPT -v | sed -n -e 's|.*version* *\(.*\)$|\1|p' `
+       if test "$TMPVERSION" != "$OCAMLVERSION" ; then
+           AC_MSG_RESULT([versions differs from ocamlc; ocamlc.opt discarded.])
+       else
+           OCAMLC=$OCAMLCDOTOPT
+       fi
+     fi
+
+     # checking for ocamlopt.opt
+     if test "$OCAMLOPT" != "no" ; then
+       AC_CHECK_TOOL([OCAMLOPTDOTOPT],[ocamlopt.opt],[no])
+       if test "$OCAMLOPTDOTOPT" != "no"; then
+          TMPVERSION=`$OCAMLOPTDOTOPT -v | sed -n -e 's|.*version* *\(.*\)$|\1|p' `
+          if test "$TMPVERSION" != "$OCAMLVERSION" ; then
+             AC_MSG_RESULT([version differs from ocamlc; ocamlopt.opt discarded.])
+          else
+             OCAMLOPT=$OCAMLOPTDOTOPT
+          fi
+        fi
+     fi
+
+     AC_SUBST([OCAMLOPT])
+  fi
+
+  AC_SUBST([OCAMLC])
+
+  # checking for ocaml toplevel
+  AC_CHECK_TOOL([OCAML],[ocaml],[no])
+
+  # checking for ocamldep
+  AC_CHECK_TOOL([OCAMLDEP],[ocamldep],[no])
+
+  # checking for ocamlmktop
+  AC_CHECK_TOOL([OCAMLMKTOP],[ocamlmktop],[no])
+
+  # checking for ocamlmklib
+  AC_CHECK_TOOL([OCAMLMKLIB],[ocamlmklib],[no])
+
+  # checking for ocamldoc
+  AC_CHECK_TOOL([OCAMLDOC],[ocamldoc],[no])
+
+  # checking for ocamlbuild
+  AC_CHECK_TOOL([OCAMLBUILD],[ocamlbuild],[no])
+])
+
+
+AC_DEFUN([AC_PROG_OCAMLLEX],
+[dnl
+  # checking for ocamllex
+  AC_CHECK_TOOL([OCAMLLEX],[ocamllex],[no])
+  if test "$OCAMLLEX" != "no"; then
+    AC_CHECK_TOOL([OCAMLLEXDOTOPT],[ocamllex.opt],[no])
+    if test "$OCAMLLEXDOTOPT" != "no"; then
+       OCAMLLEX=$OCAMLLEXDOTOPT
+    fi
+  fi
+  AC_SUBST([OCAMLLEX])
+])
+
+AC_DEFUN([AC_PROG_OCAMLYACC],
+[dnl
+  AC_CHECK_TOOL([OCAMLYACC],[ocamlyacc],[no])
+  AC_SUBST([OCAMLYACC])
+])
+
+
+AC_DEFUN([AC_PROG_CAMLP4],
+[dnl
+  AC_REQUIRE([AC_PROG_OCAML])dnl
+
+  # checking for camlp4
+  AC_CHECK_TOOL([CAMLP4],[camlp4],[no])
+  if test "$CAMLP4" != "no"; then
+     TMPVERSION=`$CAMLP4 -v 2>&1| sed -n -e 's|.*version *\(.*\)$|\1|p'`
+     if test "$TMPVERSION" != "$OCAMLVERSION" ; then
+       AC_MSG_RESULT([versions differs from ocamlc])
+        CAMLP4=no
+     fi
+  fi
+  AC_SUBST([CAMLP4])
+
+  # checking for companion tools
+  AC_CHECK_TOOL([CAMLP4BOOT],[camlp4boot],[no])
+  AC_CHECK_TOOL([CAMLP4O],[camlp4o],[no])
+  AC_CHECK_TOOL([CAMLP4OF],[camlp4of],[no])
+  AC_CHECK_TOOL([CAMLP4OOF],[camlp4oof],[no])
+  AC_CHECK_TOOL([CAMLP4ORF],[camlp4orf],[no])
+  AC_CHECK_TOOL([CAMLP4PROF],[camlp4prof],[no])
+  AC_CHECK_TOOL([CAMLP4R],[camlp4r],[no])
+  AC_CHECK_TOOL([CAMLP4RF],[camlp4rf],[no])
+  AC_SUBST([CAMLP4BOOT])
+  AC_SUBST([CAMLP4O])
+  AC_SUBST([CAMLP4OF])
+  AC_SUBST([CAMLP4OOF])
+  AC_SUBST([CAMLP4ORF])
+  AC_SUBST([CAMLP4PROF])
+  AC_SUBST([CAMLP4R])
+  AC_SUBST([CAMLP4RF])
+])
+
+
+AC_DEFUN([AC_PROG_FINDLIB],
+[dnl
+  AC_REQUIRE([AC_PROG_OCAML])dnl
+
+  # checking for ocamlfind
+  AC_CHECK_TOOL([OCAMLFIND],[ocamlfind],[no])
+  AC_SUBST([OCAMLFIND])
+])
+
+
+dnl Thanks to Jim Meyering for working this next bit out for us.
+dnl XXX We should define AS_TR_SH if it's not defined already
+dnl (eg. for old autoconf).
+AC_DEFUN([AC_CHECK_OCAML_PKG],
+[dnl
+  AC_REQUIRE([AC_PROG_FINDLIB])dnl
+
+  AC_MSG_CHECKING([for OCaml findlib package $1])
+
+  unset found
+  unset pkg
+  found=no
+  for pkg in $1 $2 ; do
+    if $OCAMLFIND query $pkg >/dev/null 2>/dev/null; then
+      AC_MSG_RESULT([found])
+      AS_TR_SH([OCAML_PKG_$1])=$pkg
+      found=yes
+      break
+    fi
+  done
+  if test "$found" = "no" ; then
+    AC_MSG_RESULT([not found])
+    AS_TR_SH([OCAML_PKG_$1])=no
+  fi
+
+  AC_SUBST(AS_TR_SH([OCAML_PKG_$1]))
+])
+
+
+AC_DEFUN([AC_CHECK_OCAML_MODULE],
+[dnl
+  AC_MSG_CHECKING([for OCaml module $2])
+
+  cat > conftest.ml <<EOF
+open $3
+EOF
+  unset found
+  for $1 in $$1 $4 ; do
+    if $OCAMLC -c -I "$$1" conftest.ml >&5 2>&5 ; then
+      found=yes
+      break
+    fi
+  done
+
+  if test "$found" ; then
+    AC_MSG_RESULT([$$1])
+  else
+    AC_MSG_RESULT([not found])
+    $1=no
+  fi
+  AC_SUBST([$1])
+])
+
+
+dnl XXX Cross-compiling
+AC_DEFUN([AC_CHECK_OCAML_WORD_SIZE],
+[dnl
+  AC_REQUIRE([AC_PROG_OCAML])dnl
+  AC_MSG_CHECKING([for OCaml compiler word size])
+  cat > conftest.ml <<EOF
+  print_endline (string_of_int Sys.word_size)
+  EOF
+  OCAML_WORD_SIZE=`$OCAML conftest.ml`
+  AC_MSG_RESULT([$OCAML_WORD_SIZE])
+  AC_SUBST([OCAML_WORD_SIZE])
+])
+
+AC_DEFUN([AC_CHECK_OCAML_OS_TYPE],
+[dnl
+  AC_REQUIRE([AC_PROG_OCAML])dnl
+  AC_MSG_CHECKING([OCaml Sys.os_type])
+
+  cat > conftest.ml <<EOF
+  print_string(Sys.os_type);;
+EOF
+
+  OCAML_OS_TYPE=`$OCAML conftest.ml`
+  AC_MSG_RESULT([$OCAML_OS_TYPE])
+  AC_SUBST([OCAML_OS_TYPE])
+])