static build fixes

Source/ThirdParty/FreeType/CMakeLists.txt

@@ -25,6 +25,8 @@ set (TARGET_NAME FreeType)
 
 add_definitions (-DFT2_BUILD_LIBRARY)
 
+set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fPIC -DPIC")
+
 # Rename z_verbose and z_error symbols to prevent Clang duplicate symbol linker error (clash with Assimp) on debug build
 if (XCODE OR CMAKE_BUILD_TYPE STREQUAL Debug)
     add_definitions (-Dz_verbose=ft2_z_verbose -Dz_error=ft2_z_error)

Source/ThirdParty/GLEW/CMakeLists.txt

@@ -26,6 +26,8 @@ set (TARGET_NAME GLEW)
 # Define preprocessor macros
 add_definitions (-DGLEW_STATIC -DGLEW_NO_GLU)
 
+add_definitions ("-fPIC -DPIC")
+
 # Define source files
 define_source_files (GLOB_CPP_PATTERNS *.c)
 

Source/ThirdParty/LZ4/CMakeLists.txt

@@ -26,6 +26,8 @@ set (TARGET_NAME LZ4)
 # Define source files
 define_source_files (GLOB_CPP_PATTERNS *.c)
 
+set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fPIC -DPIC")
+
 # Setup target
 setup_library ()
 

Source/ThirdParty/SDL/CMakeLists.txt

@@ -485,6 +485,9 @@ if(USE_GCC OR USE_CLANG)
 
   # Urho3D - Wayland quick fix
   list(APPEND EXTRA_CFLAGS "-fcommon")
+
+  # always use PIC
+  list(APPEND EXTRA_CFLAGS "-fPIC")
 endif()
 
 if(ASSEMBLY)

cmake/Modules/UrhoCommon.cmake

@@ -580,6 +580,7 @@ else ()
     set (CMAKE_CXX_VISIBILITY_PRESET hidden)
     set (CMAKE_VISIBILITY_INLINES_HIDDEN true)
     set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-invalid-offsetof")
+    set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fPIC -DPIC")
     if (NOT ANDROID)    # Most of the flags are already setup in Android toolchain file
         if (ARM AND CMAKE_SYSTEM_NAME STREQUAL Linux)
             # Common compiler flags for aarch64-linux-gnu and arm-linux-gnueabihf, we do not support ARM on Windows for now