[cmake] Configure builtins for PIC and hidden symbols

at the top level CMake command

Author: dpiparo

builtins/libgif/CMakeLists.txt

@@ -33,6 +33,8 @@ ExternalProject_Add(
     -DCMAKE_POLICY_VERSION_MINIMUM=3.5
     -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE}
     -DCMAKE_INSTALL_PREFIX=<INSTALL_DIR>
+    -DCMAKE_POSITION_INDEPENDENT_CODE=ON
+    -DCMAKE_CXX_VISIBILITY_PRESET=hidden
     BUILD_COMMAND ${CMAKE_COMMAND} --build . ${ROOT_LIBGIF_BUILD_COMMAND_FLAGS}
     INSTALL_COMMAND ${CMAKE_COMMAND} --build . ${ROOT_LIBGIF_BUILD_COMMAND_FLAGS} --target install
     LOG_CONFIGURE 1 LOG_BUILD 1 LOG_INSTALL 1 LOG_OUTPUT_ON_FAILURE 1

builtins/libjpeg/CMakeLists.txt

@@ -36,6 +36,8 @@ ExternalProject_Add(
     -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE}
     -DCMAKE_INSTALL_PREFIX=<INSTALL_DIR>
     -DCMAKE_INSTALL_LIBDIR=<INSTALL_DIR>/lib
+    -DCMAKE_POSITION_INDEPENDENT_CODE=ON
+    -DCMAKE_CXX_VISIBILITY_PRESET=hidden
     -DENABLE_SHARED=OFF
     -DWITH_TURBOJPEG=OFF
     -DWITH_SIMD=OFF

builtins/libpng/CMakeLists.txt

@@ -36,6 +36,8 @@ ExternalProject_Add(
     -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE}
     -DCMAKE_INSTALL_PREFIX=<INSTALL_DIR>
     -DCMAKE_INSTALL_LIBDIR=<INSTALL_DIR>/lib
+    -DCMAKE_POSITION_INDEPENDENT_CODE=ON
+    -DCMAKE_CXX_VISIBILITY_PRESET=hidden
     -DPNG_SHARED=OFF
     -DPNG_STATIC=ON
     -DZLIB_INCLUDE_DIR=${ZLIB_INCLUDE_DIRS}

builtins/lz4/CMakeLists.txt

@@ -35,6 +35,8 @@ ExternalProject_Add(
     CMAKE_ARGS -G ${CMAKE_GENERATOR} 
     -DCMAKE_INSTALL_PREFIX=<INSTALL_DIR>
     -DCMAKE_INSTALL_LIBDIR=<INSTALL_DIR>/lib
+    -DCMAKE_POSITION_INDEPENDENT_CODE=ON
+    -DCMAKE_CXX_VISIBILITY_PRESET=hidden
     ${lz4_extra_cmake_args}
     BUILD_COMMAND ${CMAKE_COMMAND} --build . --config $<CONFIG> 
     INSTALL_COMMAND ${CMAKE_COMMAND} --install . --config $<CONFIG>

builtins/lzma/CMakeLists.txt

@@ -39,6 +39,8 @@ ExternalProject_Add(
     CMAKE_ARGS -G ${CMAKE_GENERATOR} 
     -DCMAKE_INSTALL_PREFIX=<INSTALL_DIR>
     -DCMAKE_INSTALL_LIBDIR=<INSTALL_DIR>/lib
+    -DCMAKE_POSITION_INDEPENDENT_CODE=ON
+    -DCMAKE_CXX_VISIBILITY_PRESET=hidden
     -DBUILD_SHARED_LIBS=OFF
     -DENABLE_SCRIPTS=OFF
     -DXZ_TOOL=OFF