Add SOVERSION for the C++ libraries

Signed-off-by: Darby Johnston <[email protected]>

Author: darbyjohnston

CMakeLists.txt

@@ -11,6 +11,15 @@ set(OTIO_VERSION_MINOR "18")
 set(OTIO_VERSION_PATCH "0")
 set(OTIO_VERSION ${OTIO_VERSION_MAJOR}.${OTIO_VERSION_MINOR}.${OTIO_VERSION_PATCH})
 
+# Set the SOVERSION. This version should be incremented anytime the ABI
+# changes. OTIO is currently using the minor version number for breaking
+# changes, e.g. v0.15, v0.16.0, v0.17.0, so the SOVERSION should be incremented
+# to match. If the next OTIO version is 0.19.0 and has ABI changes, the
+# SOVERSION should be incremented to 0.19. When OTIO reaches 1.x.x the
+# SOVERSION can be changed to match the major version which is a more
+# common convention.
+set(OTIO_SOVERSION 0.18)
+
 set(OTIO_AUTHOR       "Contributors to the OpenTimelineIO project")
 set(OTIO_AUTHOR_EMAIL "[email protected]")
 set(OTIO_LICENSE      "Modified Apache 2.0 License")

src/opentime/CMakeLists.txt

@@ -24,6 +24,12 @@ set_target_properties(opentime PROPERTIES
     POSITION_INDEPENDENT_CODE TRUE
     WINDOWS_EXPORT_ALL_SYMBOLS true)
 
+if(BUILD_SHARED_LIBS)
+    set_target_properties(opentime PROPERTIES
+        SOVERSION ${OTIO_SOVERSION}
+        VERSION ${OTIO_VERSION})
+endif()
+
 if(APPLE)
     set_target_properties(opentime PROPERTIES 
         INSTALL_NAME_DIR "@loader_path"

src/opentimelineio/CMakeLists.txt

@@ -92,6 +92,12 @@ set_target_properties(opentimelineio PROPERTIES
     POSITION_INDEPENDENT_CODE TRUE
     WINDOWS_EXPORT_ALL_SYMBOLS true)
 
+if(BUILD_SHARED_LIBS)
+    set_target_properties(opentimelineio PROPERTIES
+        SOVERSION ${OTIO_SOVERSION}
+        VERSION ${OTIO_VERSION})
+endif()
+
 if(APPLE)
     set_target_properties(opentimelineio PROPERTIES 
         INSTALL_NAME_DIR "@loader_path"