Refactor CMake version handling

Move the CMake version number components out of "CMakeLists.txt" into
dedicated file "Source/CMakeVersion.cmake".  Set the TWEAK level to the
date explicitly.  Add a "Source/CMakeVersion.bash" script to update the
date, thus replacing KWSys DateStamp for CMake.  Teach the bootstrap
script to extract the version components from their new location.

2 files changed, 13 insertions, 0 deletions

diff --git a/Source/CMakeVersion.bash b/Source/CMakeVersion.bash
new file mode 100755
index 0000000..126adba
--- /dev/null
+++ b/Source/CMakeVersion.bash
@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+# Update the version component if it looks like a date or -f is given.
+if test "x$1" = "x-f"; then shift ; n='*' ; else n='\{8\}' ; fi
+if test "$#" -gt 0; then echo 1>&2 "usage: CMakeVersion.bash [-f]"; exit 1; fi
+sed -i -e '
+s/\(^SET(CMake_VERSION_TWEAK\) [0-9]'"$n"'\(.*\)/\1 '"$(date +%Y%m%d)"'\2/
+' "${BASH_SOURCE%/*}/CMakeVersion.cmake"
diff --git a/Source/CMakeVersion.cmake b/Source/CMakeVersion.cmake
new file mode 100644
index 0000000..51672e4
--- /dev/null
+++ b/Source/CMakeVersion.cmake
@@ -0,0 +1,6 @@
+# CMake version number components.
+SET(CMake_VERSION_MAJOR 2)
+SET(CMake_VERSION_MINOR 8)
+SET(CMake_VERSION_PATCH 8)
+SET(CMake_VERSION_TWEAK 20120420)
+#SET(CMake_VERSION_RC 1)