CMake: unbundle LZO library

Patch T41989 by @hasufell

2 files changed, 75 insertions, 1 deletions

diff --git a/build_files/cmake/Modules/FindLZO.cmake b/build_files/cmake/Modules/FindLZO.cmake
new file mode 100644
index 00000000000..a21aa0a03bb
--- /dev/null
+++ b/build_files/cmake/Modules/FindLZO.cmake
@@ -0,0 +1,68 @@
+# - Find LZO library
+# Find the native LZO includes and library
+# This module defines
+#  LZO_INCLUDE_DIRS, where to find lzo1x.h, Set when
+#                        LZO_INCLUDE_DIR is found.
+#  LZO_LIBRARIES, libraries to link against to use LZO.
+#  LZO_ROOT_DIR, The base directory to search for LZO.
+#                    This can also be an environment variable.
+#  LZO_FOUND, If false, do not try to use LZO.
+#
+# also defined, but not for general use are
+#  LZO_LIBRARY, where to find the LZO library.
+
+#=============================================================================
+# Copyright 2015 Blender Foundation.
+#
+# Distributed under the OSI-approved BSD License (the "License");
+# see accompanying file Copyright.txt for details.
+#
+# This software is distributed WITHOUT ANY WARRANTY; without even the
+# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the License for more information.
+#=============================================================================
+
+# If LZO_ROOT_DIR was defined in the environment, use it.
+IF(NOT LZO_ROOT_DIR AND NOT $ENV{LZO_ROOT_DIR} STREQUAL "")
+  SET(LZO_ROOT_DIR $ENV{LZO_ROOT_DIR})
+ENDIF()
+
+SET(_lzo_SEARCH_DIRS
+  ${LZO_ROOT_DIR}
+  /usr/local
+  /sw # Fink
+  /opt/local # DarwinPorts
+  /opt/csw # Blastwave
+)
+
+FIND_PATH(LZO_INCLUDE_DIR lzo/lzo1x.h
+  HINTS
+    ${_lzo_SEARCH_DIRS}
+  PATH_SUFFIXES
+    include
+)
+
+FIND_LIBRARY(LZO_LIBRARY
+  NAMES
+    lzo2
+  HINTS
+    ${_lzo_SEARCH_DIRS}
+  PATH_SUFFIXES
+    lib64 lib
+  )
+
+# handle the QUIETLY and REQUIRED arguments and set LZO_FOUND to TRUE if 
+# all listed variables are TRUE
+INCLUDE(FindPackageHandleStandardArgs)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(LZO DEFAULT_MSG
+  LZO_LIBRARY LZO_INCLUDE_DIR)
+
+IF(LZO_FOUND)
+  SET(LZO_LIBRARIES ${LZO_LIBRARY})
+  SET(LZO_INCLUDE_DIRS ${LZO_INCLUDE_DIR})
+ENDIF(LZO_FOUND)
+
+MARK_AS_ADVANCED(
+  LZO_INCLUDE_DIR
+  LZO_LIBRARY
+)
diff --git a/build_files/cmake/macros.cmake b/build_files/cmake/macros.cmake
index 33c764402a2..b266602fa63 100644
--- a/build_files/cmake/macros.cmake
+++ b/build_files/cmake/macros.cmake
@@ -321,6 +321,9 @@ macro(setup_liblinks
 		endif()
 	endif()
 
+	if(WITH_LZO AND WITH_SYSTEM_LZO)
+		target_link_libraries(${target} ${LZO_LIBRARIES})
+	endif()
 	if(WITH_SYSTEM_GLEW)
 		target_link_libraries(${target} ${BLENDER_GLEW_LIBRARIES})
 	endif()
@@ -539,7 +542,6 @@ macro(SETUP_BLENDER_SORTED_LIBS)
 		ge_phys_dummy
 		ge_phys_bullet
 		bf_intern_smoke
-		extern_minilzo
 		extern_lzma
 		extern_colamd
 		ge_logic_ketsji
@@ -593,6 +595,10 @@ macro(SETUP_BLENDER_SORTED_LIBS)
 		list(APPEND BLENDER_SORTED_LIBS extern_eltopo)
 	endif()
 
+	if(NOT WITH_SYSTEM_LZO)
+		list(APPEND BLENDER_SORTED_LIBS extern_minilzo)
+	endif()
+
 	if(NOT WITH_SYSTEM_GLEW)
 		list(APPEND BLENDER_SORTED_LIBS ${BLENDER_GLEW_LIBRARIES})
 	endif()