cmake: export only needed symbols

6 files changed, 20 insertions, 12 deletions

diff --git a/cmake/opentrack-macros.cmake b/cmake/opentrack-macros.cmake
index 46cf3c61..9be09397 100644
--- a/cmake/opentrack-macros.cmake
+++ b/cmake/opentrack-macros.cmake
@@ -32,7 +32,7 @@ endfunction()
 
 macro(opentrack_library n dir)
     cmake_parse_arguments(opentrack-foolib
-        "NO-LIBRARY;STATIC;NO-COMPAT;NO-LINKER-SCRIPT"
+        "NO-LIBRARY;STATIC;NO-COMPAT;NO-LINKER-SCRIPT;LINKAGE"
         "LINK;COMPILE;GNU-LINK;GNU-COMPILE"
         ""
         ${ARGN}
@@ -54,17 +54,25 @@ macro(opentrack_library n dir)
         endif()
         target_link_libraries(${n} ${MY_QT_LIBS})
         if(CMAKE_COMPILER_IS_GNUCXX AND NOT APPLE AND NOT opentrack-foolib_NO-LINKER-SCRIPT)
-            SET_TARGET_PROPERTIES(${n} PROPERTIES
+            set_target_properties(${n} PROPERTIES
                 LINK_FLAGS "${opentrack-foolib_LINK} ${opentrack-foolib_GNU-LINK} -Wl,--as-needed -Wl,--version-script=\"${CMAKE_SOURCE_DIR}/opentrack-compat/${version-script}-version-script.txt\""
                 COMPILE_FLAGS "${opentrack-foolib_COMPILE} ${opentrack-foolib_GNU-COMPILE} -fvisibility=hidden -fvisibility-inlines-hidden"
             )
         else()
-            set(link-flags)
-            if(MSVC)
-                set(link-flags "${msvc-subsystem} /DEBUG /OPT:ICF")
+            set(c-props)
+            set(l-props)
+            if(opentrack-foolib_LINKAGE AND CMAKE_COMPILER_IS_GNUCXX AND NOT APPLE)
+                set(c-props "${opentrack-foolib_COMPILE} ${opentrack-foolib_GNU-COMPILE} -fvisibility=hidden -fvisibility-inlines-hidden")
+                set(l-props "${opentrack-foolib_LINK} ${opentrack-foolib_GNU-LINK} -Wl,--as-needed")
+            else()
+                if(MSVC)
+                    set(l-props "${msvc-subsystem} /DEBUG /OPT:ICF")
+                endif()
             endif()
-            set_target_properties(${n} PROPERTIES LINK_FLAGS "${link-flags} ${opentrack-foolib_LINK}" COMPILE_FLAGS "${opentrack-foolib_COMPILE}")
-            set(link-flags)
+            set_target_properties(${n} PROPERTIES
+                LINK_FLAGS "${l-props} ${opentrack-foolib_LINK}"
+                COMPILE_FLAGS "${c-props} ${opentrack-foolib_COMPILE}"
+            )
         endif()
         string(REGEX REPLACE "^opentrack-" "" n_ ${n})
         string(REPLACE "-" "_" n_ ${n_})
diff --git a/csv/CMakeLists.txt b/csv/CMakeLists.txt
index 7e80317c..7bafc7ff 100644
--- a/csv/CMakeLists.txt
+++ b/csv/CMakeLists.txt
@@ -1 +1 @@
-opentrack_boilerplate(opentrack-csv NO-LINKER-SCRIPT)
+opentrack_boilerplate(opentrack-csv NO-LINKER-SCRIPT LINKAGE)
diff --git a/opentrack-compat/CMakeLists.txt b/opentrack-compat/CMakeLists.txt
index a92f4f31..37d53e6c 100644
--- a/opentrack-compat/CMakeLists.txt
+++ b/opentrack-compat/CMakeLists.txt
@@ -1,4 +1,4 @@
-opentrack_boilerplate(opentrack-compat NO-COMPAT NO-LINKER-SCRIPT)
+opentrack_boilerplate(opentrack-compat NO-COMPAT NO-LINKER-SCRIPT LINKAGE)
 if(NOT WIN32 AND NOT APPLE)
     target_link_libraries(opentrack-compat rt)
 endif()
diff --git a/pose-widget/CMakeLists.txt b/pose-widget/CMakeLists.txt
index 66cafef7..e48660d7 100644
--- a/pose-widget/CMakeLists.txt
+++ b/pose-widget/CMakeLists.txt
@@ -1 +1 @@
-opentrack_boilerplate(opentrack-pose-widget NO-LINKER-SCRIPT)
+opentrack_boilerplate(opentrack-pose-widget NO-LINKER-SCRIPT LINKAGE)
diff --git a/qxt-mini/CMakeLists.txt b/qxt-mini/CMakeLists.txt
index 5de29cd1..a8b8fb1d 100644
--- a/qxt-mini/CMakeLists.txt
+++ b/qxt-mini/CMakeLists.txt
@@ -1,5 +1,5 @@
 if(UNIX OR APPLE)
-    opentrack_boilerplate(opentrack-qxt-mini NO-LINKER-SCRIPT NO-COMPAT)
+    opentrack_boilerplate(opentrack-qxt-mini NO-LINKER-SCRIPT NO-COMPAT LINKAGE)
     if(NOT APPLE)
         target_link_libraries(opentrack-qxt-mini X11)
     else()
diff --git a/spline-widget/CMakeLists.txt b/spline-widget/CMakeLists.txt
index 93958f50..4d951f92 100644
--- a/spline-widget/CMakeLists.txt
+++ b/spline-widget/CMakeLists.txt
@@ -1 +1 @@
-opentrack_boilerplate(opentrack-spline-widget NO-LINKER-SCRIPT NO-COMPAT)
+opentrack_boilerplate(opentrack-spline-widget NO-LINKER-SCRIPT NO-COMPAT LINKAGE)