From 88821cbcdd250bdd02498859672a84cd46b87f3f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=A9bastien=20Loriot?= <sebastien.loriot@cgal.org>
Date: Mon, 25 Sep 2017 10:47:41 +0200
Subject: [PATCH] set CGAL version when building the doc alone

---
 Documentation/doc/CMakeLists.txt | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/Documentation/doc/CMakeLists.txt b/Documentation/doc/CMakeLists.txt
index 7394713a3b4..2080c652bbe 100644
--- a/Documentation/doc/CMakeLists.txt
+++ b/Documentation/doc/CMakeLists.txt
@@ -238,6 +238,25 @@ else()
   set(CGAL_RELEASE_YEAR_ID "${CGAL_BUILD_YEAR2}a")
 endif()
 
+if (NOT CGAL_CREATED_VERSION_NUM)
+  if (CGAL_BRANCH_BUILD)
+    file(STRINGS "${CGAL_ROOT}/Maintenance/release_building/MAJOR_NUMBER" CGAL_MAJOR_VERSION REGEX "[0-9]*")
+    file(STRINGS "${CGAL_ROOT}/Maintenance/release_building/MINOR_NUMBER" CGAL_MINOR_VERSION REGEX "[0-9]*")
+    file(STRINGS "${CGAL_ROOT}/Maintenance/release_building/BUGFIX_NUMBER" CGAL_BUGFIX_VERSION REGEX "[0-9]*")
+
+    if (CGAL_BUGFIX_VERSION AND CGAL_BUGFIX_VERSION GREATER 0)
+      set(CGAL_CREATED_VERSION_NUM "${CGAL_MAJOR_VERSION}.${CGAL_MINOR_VERSION}.${CGAL_BUGFIX_VERSION}")
+    else()
+      set(CGAL_CREATED_VERSION_NUM "${CGAL_MAJOR_VERSION}.${CGAL_MINOR_VERSION}")
+    endif()
+  else()
+    #read version.h and get the line with CGAL_VERSION
+    file(STRINGS "${CGAL_ROOT}/include/CGAL/version.h" CGAL_VERSION_LINE REGEX "CGAL_VERSION ")
+    #extract release id
+    string(REGEX MATCH "[0-9]+\\.[0-9]+\\.?[0-9]*(-Ic-)?[0-9]*" CGAL_CREATED_VERSION_NUM "${CGAL_VERSION_LINE}")
+  endif()
+endif()
+
 # Introduce our own version variable. This way we avoid tying this too
 # closely to the convoluted versioning code and can adapt without a
 # huge diff.