From 0ed341a84c1ded47b1ea08c3389a84ef08a7e50f Mon Sep 17 00:00:00 2001
From: Chris Hennes <chennes@pioneerlibrarysystem.org>
Date: Wed, 10 Feb 2021 23:58:22 -0600
Subject: [PATCH] [CMAKE] Add Coin3D version info

Modelled after the code for Eigen3, this adds a version check for Coin.
If pkg_config (or some other method) finds the version string, just
print that. If not, do a REGEX MATCH on the file in Coin's headers that
includes the version information. Note that in this case the beta
version information is excluded.
---
 cMake/FindCoin3D.cmake                       | 12 ++++++++++++
 cMake/FreeCAD_Helpers/PrintFinalReport.cmake |  2 +-
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/cMake/FindCoin3D.cmake b/cMake/FindCoin3D.cmake
index 08659ea5e9..b135302322 100644
--- a/cMake/FindCoin3D.cmake
+++ b/cMake/FindCoin3D.cmake
@@ -105,5 +105,17 @@ ENDIF (WIN32)
 IF(COIN3D_LIBRARIES)
   SET( COIN3D_FOUND "YES" )
   message(STATUS "Coin3D libraries found")
+
+  IF(NOT COIN3D_VERSION)
+    file(READ "${COIN3D_INCLUDE_DIRS}/Inventor/C/basic.h" _coin3d_basic_h)
+    string(REGEX MATCH "define[ \t]+COIN_MAJOR_VERSION[ \t]+([0-9?])" _coin3d_major_version_match "${_coin3d_basic_h}")
+    set(COIN3D_MAJOR_VERSION "${CMAKE_MATCH_1}")
+    string(REGEX MATCH "define[ \t]+COIN_MINOR_VERSION[ \t]+([0-9?])" _coin3d_minor_version_match "${_coin3d_basic_h}")
+    set(COIN3D_MINOR_VERSION "${CMAKE_MATCH_1}")
+    string(REGEX MATCH "define[ \t]+COIN_MICRO_VERSION[ \t]+([0-9?])" _coin3d_micro_version_match "${_coin3d_basic_h}")
+    set(COIN3D_MICRO_VERSION "${CMAKE_MATCH_1}")
+    set(COIN3D_VERSION "${COIN3D_MAJOR_VERSION}.${COIN3D_MINOR_VERSION}.${COIN3D_MICRO_VERSION}")
+  ENDIF()
+
 ENDIF(COIN3D_LIBRARIES)
 
diff --git a/cMake/FreeCAD_Helpers/PrintFinalReport.cmake b/cMake/FreeCAD_Helpers/PrintFinalReport.cmake
index 96ea7de919..42de8595a4 100644
--- a/cMake/FreeCAD_Helpers/PrintFinalReport.cmake
+++ b/cMake/FreeCAD_Helpers/PrintFinalReport.cmake
@@ -166,7 +166,7 @@ macro(PrintFinalReport)
     message(STATUS "OpenGL:              ${OPENGL_gl_LIBRARY}")
     message(STATUS "OpenGLU:             ${OPENGL_glu_LIBRARY} [${OPENGL_glu_LIBRARY}][${OPENGL_INCLUDE_DIR}]")
 
-    message(STATUS "Coin3D:              [${COIN3D_LIBRARIES}] [${COIN3D_INCLUDE_DIRS}]")
+    message(STATUS "Coin3D:              ${COIN3D_VERSION} [${COIN3D_LIBRARIES}] [${COIN3D_INCLUDE_DIRS}]")
 
 
     if (WIN32)