Hello again,
for our application, I worked around the symbol clashes between libftgl
in VTK and the system ftgl by enabling symbol versioning for the VTK
provided version.
Patch attached in case it is useful for you as well.
Greetings, Torsten
--
DYNAmore Gesellschaft fuer Ingenieurdienstleistungen mbH
Torsten Landschoff
Office Dresden
Tel: +49-(0)351-4519587
Fax: +49-(0)351-4519561
mailto:torsten.landsch...@dynamore.de
http://www.dynamore.de
Registration court: Mannheim, HRB: 109659, based in Karlsruhe,
Managing director: Prof. Dr. K. Schweizerhof, Dipl.-Math. U. Franz
commit 38b915e459190945157d667354000f2c3142fbf3
Author: Torsten Landschoff <torsten.landsch...@dynamore.de>
Date: Thu Sep 1 13:11:53 2011 +0200
Build the vtkftgl library with symbol versioning.
This avoids name clashes between vtkftgl and the system ftgl library.
diff --git a/Utilities/ftgl/CMakeLists.txt b/Utilities/ftgl/CMakeLists.txt
index 08e469c..72d4af3 100644
--- a/Utilities/ftgl/CMakeLists.txt
+++ b/Utilities/ftgl/CMakeLists.txt
@@ -1,5 +1,7 @@
PROJECT (VTKFTGL)
+INCLUDE(TestCXXAcceptsFlag)
+
#
# Dependency mask
#
@@ -160,6 +162,39 @@ IF(NOT VTK_INSTALL_NO_LIBRARIES)
ENDIF(NOT VTK_INSTALL_NO_LIBRARIES)
#
+# To avoid name clashes (and the resulting crashes) between our FTGL and the
+# system FTGL, we configure the linker to add a prefix to all symbols.
+#
+
+if (CMAKE_COMPILER_IS_GNUCXX)
+
+ GET_TARGET_PROPERTY(VTKFTGL_LINK_FLAGS vtkftgl LINK_FLAGS)
+ IF(VTKFTGL_LINK_FLAGS)
+ SET(VTKFTGL_LINK_FLAGS "${VTKFTGL_LINK_FLAGS} ")
+ ELSE(VTKFTGL_LINK_FLAGS)
+ SET(VTKFTGL_LINK_FLAGS)
+ ENDIF(VTKFTGL_LINK_FLAGS)
+
+
+ set(_version_script_content "libvtkftgl { *; };")
+ set(_version_script "${CMAKE_CURRENT_BINARY_DIR}/version.script")
+ file(WRITE ${_version_script} "${_version_script_content}\n")
+
+ # Check if the linker supports version script (i.e. is GNU ld)
+ check_cxx_accepts_flag("-Wl,--version-script,${_version_script}"
+ LD_ACCEPTS_VERSION_SCRIPT)
+ if (LD_ACCEPTS_VERSION_SCRIPT)
+ set(_link_flags "-Wl,--version-script,'${_version_script}'")
+ endif (LD_ACCEPTS_VERSION_SCRIPT)
+
+ if (_link_flags)
+ SET_TARGET_PROPERTIES(vtkftgl PROPERTIES
+ LINK_FLAGS "${VTKFTGL_LINK_FLAGS}${_link_flags}")
+ endif (_link_flags)
+endif (CMAKE_COMPILER_IS_GNUCXX)
+
+
+#
# Do not cover this lib
#
CONFIGURE_FILE (${VTKFTGL_SOURCE_DIR}/.NoDartCoverage
