Fix duplicate warning from Xcode

cmake/Modules/XcodeDeleteDuplicates.cmake

@@ -0,0 +1,23 @@
+# GNSS-SDR is a Global Navigation Satellite System software-defined receiver.
+# This file is part of GNSS-SDR.
+#
+# SPDX-FileCopyrightText: 2011-2024 C. Fernandez-Prades cfernandez(at)cttc.es
+# SPDX-License-Identifier: BSD-3-Clause
+
+if(DEFINED __INCLUDED_XCODE_DELETE_DUPLICATES_CMAKE)
+    return()
+endif()
+set(__INCLUDED_XCODE_DELETE_DUPLICATES_CMAKE TRUE)
+
+function(xcode_delete_duplicates target)
+    if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "AppleClang")
+        if(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL "15.0.0")
+            # A bug in Xcode 15 adds duplicate flags to the linker. In addition, the
+            # `-warn_duplicate_libraries` is now enabled by default which may result
+            # in several 'duplicate libraries warning'.
+            #   - https://gitlab.kitware.com/cmake/cmake/-/issues/25297 and
+            #   - https://indiestack.com/2023/10/xcode-15-duplicate-library-linker-warnings/
+            target_link_options(${target} PUBLIC "LINKER:-no_warn_duplicate_libraries")
+        endif()
+    endif()
+endfunction()

src/algorithms/libs/volk_gnsssdr_module/volk_gnsssdr/apps/CMakeLists.txt

@@ -77,6 +77,9 @@ if(UNIX)
     )
 endif()
 
+include(XcodeDeleteDuplicates)
+xcode_delete_duplicates(volk_gnsssdr_profile)
+
 if(ENABLE_STRIP)
     if((CMAKE_CXX_COMPILER_ID STREQUAL "GNU") AND NOT WIN32)
         set_target_properties(volk_gnsssdr_profile
@@ -106,6 +109,8 @@ if(UNIX)
     )
 endif()
 
+xcode_delete_duplicates(volk_gnsssdr-config-info)
+
 if(ENABLE_STRIP)
     if((CMAKE_CXX_COMPILER_ID STREQUAL "GNU") AND NOT WIN32)
         set_target_properties(volk_gnsssdr-config-info

src/algorithms/libs/volk_gnsssdr_module/volk_gnsssdr/cmake/Modules/XcodeDeleteDuplicates.cmake

@@ -0,0 +1,23 @@
+# GNSS-SDR is a Global Navigation Satellite System software-defined receiver.
+# This file is part of GNSS-SDR.
+#
+# SPDX-FileCopyrightText: 2011-2024 C. Fernandez-Prades cfernandez(at)cttc.es
+# SPDX-License-Identifier: BSD-3-Clause
+
+if(DEFINED __INCLUDED_XCODE_DELETE_DUPLICATES_CMAKE)
+    return()
+endif()
+set(__INCLUDED_XCODE_DELETE_DUPLICATES_CMAKE TRUE)
+
+function(xcode_delete_duplicates target)
+    if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "AppleClang")
+        if(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL "15.0.0")
+            # A bug in Xcode 15 adds duplicate flags to the linker. In addition, the
+            # `-warn_duplicate_libraries` is now enabled by default which may result
+            # in several 'duplicate libraries warning'.
+            #   - https://gitlab.kitware.com/cmake/cmake/-/issues/25297 and
+            #   - https://indiestack.com/2023/10/xcode-15-duplicate-library-linker-warnings/
+            target_link_options(${target} PUBLIC "LINKER:-no_warn_duplicate_libraries")
+        endif()
+    endif()
+endfunction()

src/algorithms/libs/volk_gnsssdr_module/volk_gnsssdr/lib/CMakeLists.txt

@@ -4,6 +4,7 @@
 # SPDX-FileCopyrightText: 2010-2021 C. Fernandez-Prades cfernandez(at)cttc.es
 # SPDX-License-Identifier: BSD-3-Clause
 
+include(XcodeDeleteDuplicates)
 
 ########################################################################
 # header file detection
@@ -595,6 +596,9 @@ if(NOT (ENABLE_STATIC_LIBS AND (CMAKE_GENERATOR STREQUAL Xcode)))
     else()
         target_link_libraries(volk_gnsssdr PUBLIC ${volk_gnsssdr_libraries})
     endif()
+
+    xcode_delete_duplicates(volk_gnsssdr)
+
     target_include_directories(volk_gnsssdr
         PUBLIC $<BUILD_INTERFACE:${PROJECT_BINARY_DIR}/include>
         PUBLIC $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>
@@ -676,6 +680,8 @@ if(ENABLE_STATIC_LIBS)
     )
     set_target_properties(volk_gnsssdr_static PROPERTIES OUTPUT_NAME volk_gnsssdr)
 
+    xcode_delete_duplicates(volk_gnsssdr_static)
+
     install(TARGETS volk_gnsssdr_static
         EXPORT VOLK_GNSSSDR-export
         ARCHIVE DESTINATION lib${LIB_SUFFIX} COMPONENT "volk_gnsssdr_devel"
@@ -702,6 +708,9 @@ if(ENABLE_TESTING)
             TARGET_DEPS volk_gnsssdr
         )
     endif()
+
+    xcode_delete_duplicates(volk_gnsssdr_test_all)
+
     foreach(kernel ${h_files})
         get_filename_component(kernel ${kernel} NAME)
         string(REPLACE ".h" "" kernel ${kernel})

src/main/CMakeLists.txt

@@ -65,6 +65,9 @@ if(ENABLE_STRIP)
     set_target_properties(gnss-sdr PROPERTIES LINK_FLAGS "-s")
 endif()
 
+include(XcodeDeleteDuplicates)
+xcode_delete_duplicates(gnss-sdr)
+
 if(ENABLE_CLANG_TIDY)
     if(CLANG_TIDY_EXE)
         set_target_properties(gnss-sdr

src/tests/CMakeLists.txt

@@ -8,6 +8,8 @@
 add_subdirectory(unit-tests/signal-processing-blocks/libs)
 add_subdirectory(system-tests/libs)
 
+include(XcodeDeleteDuplicates)
+
 ################################################################################
 # Google Test - https://github.com/google/googletest
 ################################################################################
@@ -645,6 +647,7 @@ if(ENABLE_UNIT_TESTING)
             target_compile_definitions(run_tests PRIVATE -DGNSSTK_OLDER_THAN_9=1)
         endif()
     endif()
+    xcode_delete_duplicates(run_tests)
     if(ENABLE_STRIP)
         set_target_properties(run_tests PROPERTIES LINK_FLAGS "-s")
     endif()
@@ -823,6 +826,9 @@ function(add_system_test executable)
             ${LOCAL_INSTALL_BASE_DIR}/install/$<TARGET_FILE_NAME:${executable}>
         )
     endif()
+
+    xcode_delete_duplicates(${executable})
+
     if(ENABLE_CLANG_TIDY)
         if(CLANG_TIDY_EXE)
             set_target_properties(${executable}
@@ -937,6 +943,9 @@ if(NOT ENABLE_PACKAGING AND NOT ENABLE_FPGA)
         PRIVATE
             ${GNSSSDR_SOURCE_DIR}/src/algorithms/libs
     )
+
+    xcode_delete_duplicates(flowgraph_test)
+
     add_test(flowgraph_test flowgraph_test)
 
     set_property(TEST flowgraph_test PROPERTY TIMEOUT 30)
@@ -992,6 +1001,8 @@ if(NOT ENABLE_PACKAGING AND NOT ENABLE_FPGA)
         target_compile_definitions(gnss_block_test PRIVATE -DENABLE_FPGA=1)
     endif()
 
+    xcode_delete_duplicates(gnss_block_test)
+
     add_test(gnss_block_test gnss_block_test)
 
     set_property(TEST gnss_block_test PROPERTY TIMEOUT 60)
@@ -1029,6 +1040,8 @@ if(NOT ENABLE_PACKAGING AND NOT ENABLE_FPGA)
             algorithms_libs
     )
 
+    xcode_delete_duplicates(gnuradio_block_test)
+
     add_test(gnuradio_block_test gnuradio_block_test)
 
     set_property(TEST gnuradio_block_test PROPERTY TIMEOUT 30)
@@ -1063,6 +1076,8 @@ target_include_directories(matio_test
         ${GNSSSDR_SOURCE_DIR}/src/tests/common-files
 )
 
+xcode_delete_duplicates(matio_test)
+
 add_test(matio_test matio_test)
 
 set_property(TEST matio_test PROPERTY TIMEOUT 30)
@@ -1112,6 +1127,8 @@ if(NOT ENABLE_PACKAGING AND NOT ENABLE_FPGA)
         )
     endif()
 
+    xcode_delete_duplicates(acq_test)
+
     add_test(acq_test acq_test)
 
     if(USE_GENERIC_LAMBDAS)
@@ -1208,6 +1225,8 @@ if(NOT ENABLE_PACKAGING AND NOT ENABLE_FPGA)
         )
     endif()
 
+    xcode_delete_duplicates(trk_test)
+
     add_test(trk_test trk_test)
 
     set_property(TEST trk_test PROPERTY TIMEOUT 30)
@@ -1239,6 +1258,8 @@ if(NOT ENABLE_PACKAGING AND NOT ENABLE_FPGA)
             core_receiver
     )
 
+    xcode_delete_duplicates(control_thread_test)
+
     add_test(control_thread_test control_thread_test)
 
     set_property(TEST control_thread_test PROPERTY TIMEOUT 30)

src/utils/front-end-cal/CMakeLists.txt

@@ -102,6 +102,9 @@ if(PMT_USES_BOOST_ANY)
     )
 endif()
 
+include(XcodeDeleteDuplicates)
+xcode_delete_duplicates(front-end-cal)
+
 if(ENABLE_STRIP)
     set_target_properties(front-end-cal PROPERTIES LINK_FLAGS "-s")
 endif()