From 0de630f3255df7817db597caad03cb5c8580cd00 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Sat, 29 Apr 2017 16:54:40 +0200
Subject: Add parallel version headers for build2

---
 .gitignore                |  4 ++++
 odb/buildfile             |  7 +++++++
 odb/version-build2.hxx.in | 40 ++++++++++++++++++++++++++++++++++++++++
 odb/version.hxx           |  5 +++++
 4 files changed, 56 insertions(+)
 create mode 100644 odb/version-build2.hxx.in

diff --git a/.gitignore b/.gitignore
index 209706c..65207af 100644
--- a/.gitignore
+++ b/.gitignore
@@ -27,3 +27,7 @@
 # Generated .gitignore files.
 #
 .gitignore
+
+# Temporarily here because of auto-generated odb/.gitignore.
+#
+odb/version-build2.hxx
diff --git a/odb/buildfile b/odb/buildfile
index e9958c1..562b5b5 100644
--- a/odb/buildfile
+++ b/odb/buildfile
@@ -56,6 +56,7 @@ lib{odb}:                                                           \
                    {hxx ixx     cxx}{ vector-impl                 } \
                    {hxx     txx    }{ vector-traits               } \
                    {hxx            }{ version                     } \
+                   {hxx            }{ version-build2              } \
                    {hxx            }{ view-image                  } \
                    {hxx     txx    }{ view-result                 } \
                    {hxx            }{ wrapper-traits              } \
@@ -92,6 +93,9 @@ details/shared-ptr/{hxx            }{ counter-type                } \
 details/shared-ptr/{hxx            }{ exception                   } \
      details/win32/{hxx            }{ windows                     }
 
+hxx{version-build2}: in{version-build2} $src_root/file{manifest}
+hxx{version-build2}: dist = true
+
 # For pre-releases use the complete version to make sure they cannot be used
 # in place of another pre-release or the final version.
 #
@@ -118,6 +122,9 @@ if ($cxx.target.class != "windows")
 
 # We want these to be picked up even when LIBODB_BUILD2 is not defined.
 #
+hxx{version}@./:     install = false
+hxx{version-build2}: install = $install.include/version.hxx
+
 details/build2/:
 {
   if ($cxx.id == "msvc")
diff --git a/odb/version-build2.hxx.in b/odb/version-build2.hxx.in
new file mode 100644
index 0000000..95d80d8
--- /dev/null
+++ b/odb/version-build2.hxx.in
@@ -0,0 +1,40 @@
+// file      : odb/version-build2.hxx.in
+// copyright : Copyright (c) 2005-2017 Code Synthesis Tools CC
+// license   : GNU GPL v2; see accompanying LICENSE file
+
+#ifndef LIBODB_VERSION // Note: using the version macro itself.
+
+// Note: using build2 standard versioning scheme. The numeric version format
+// is AAABBBCCCDDDE where:
+//
+// AAA - major version number
+// BBB - minor version number
+// CCC - bugfix version number
+// DDD - alpha / beta (DDD + 500) version number
+// E   - final (0) / snapshot (1)
+//
+// When DDDE is not 0, 1 is subtracted from AAABBBCCC. For example:
+//
+// Version      AAABBBCCCDDDE
+//
+// 0.1.0        0000010000000
+// 0.1.2        0000010010000
+// 1.2.3        0010020030000
+// 2.2.0-a.1    0020019990010
+// 3.0.0-b.2    0029999995020
+// 2.2.0-a.1.z  0020019990011
+//
+#define LIBODB_VERSION       $libodb.version.project_number$ULL
+#define LIBODB_VERSION_STR   "$libodb.version.project$"
+#define LIBODB_VERSION_ID    "$libodb.version.project_id$"
+
+#define LIBODB_VERSION_MAJOR $libodb.version.major$
+#define LIBODB_VERSION_MINOR $libodb.version.minor$
+#define LIBODB_VERSION_PATCH $libodb.version.patch$
+
+#define LIBODB_PRE_RELEASE   $libodb.version.pre_release$
+
+#define LIBODB_SNAPSHOT      $libodb.version.snapshot_sn$ULL
+#define LIBODB_SNAPSHOT_ID   "$libodb.version.snapshot_id$"
+
+#endif // LIBODB_VERSION
diff --git a/odb/version.hxx b/odb/version.hxx
index 954a15f..0242ac4 100644
--- a/odb/version.hxx
+++ b/odb/version.hxx
@@ -2,6 +2,10 @@
 // copyright : Copyright (c) 2005-2017 Code Synthesis Tools CC
 // license   : GNU GPL v2; see accompanying LICENSE file
 
+#ifdef LIBODB_BUILD2
+#  include <odb/version-build2.hxx>
+#else
+
 #ifndef ODB_VERSION_HXX
 #define ODB_VERSION_HXX
 
@@ -37,3 +41,4 @@
 #include <odb/post.hxx>
 
 #endif // ODB_VERSION_HXX
+#endif // LIBODB_BUILD2
-- 
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