1 files changed, 43 insertions, 0 deletions
diff --git a/tools/make-version-header.sh b/tools/make-version-header.sh
new file mode 100755
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+++ b/tools/make-version-header.sh
@@ -0,0 +1,43 @@
+#!/bin/sh
+
+#########################################################################
+#                                                                       #
+#                                 OCaml                                 #
+#                                                                       #
+#          Damien Doligez, projet Gallium, INRIA Rocquencourt           #
+#                                                                       #
+#   Copyright 2003 Institut National de Recherche en Informatique et    #
+#   en Automatique.  All rights reserved.  As an exception to the       #
+#   licensing rules of OCaml, this file is freely redistributable,      #
+#   modified or not, without constraints.                               #
+#                                                                       #
+#########################################################################
+
+# For maximal compatibility with older versions, we Use "ocamlc -v"
+# instead of "ocamlc -vnum" or the VERSION file in .../lib/ocaml/.
+
+# This script extracts the components from an OCaml version number
+# and provides them as C defines:
+# OCAML_VERSION_MAJOR: the major version number
+# OCAML_VERSION_MAJOR: the minor version number
+# OCAML_VERSION_PATCHLEVEL: the patchlevel number if present, or 0 if absent
+# OCAML_VERSION_ADDITIONAL: this is defined only if the additional-info
+#  field is present, and is a string that contains that field.
+# Note that additional-info is always absent in officially-released
+# versions of OCaml.
+
+version="`ocamlc -v | sed -n -e 's/.*version //p'`"
+
+major="`echo "$version" | sed -n -e '1s/^\([0-9]*\)\..*/\1/p'`"
+minor="`echo "$version" | sed -n -e '1s/^[0-9]*\.\([0-9]*\).*/\1/p'`"
+patchlevel="`echo "$version" | sed -n -e '1s/^[0-9]*\.[0-9]*\.\([0-9]*\).*/\1/p'`"
+suffix="`echo "$version" | sed -n -e '1s/^[^+]*+\(.*\)/\1/p'`"
+
+echo "#define OCAML_VERSION_MAJOR $major"
+echo "#define OCAML_VERSION_MINOR $minor"
+case $patchlevel in "") patchlevel=0;; esac
+echo "#define OCAML_VERSION_PATCHLEVEL $patchlevel"
+case "$suffix" in
+  "") echo "#undef OCAML_VERSION_ADDITIONAL";;
+  *) echo "#define OCAML_VERSION_ADDITIONAL \"$suffix\"";;
+esac