fix: breakpad use miniz

third_party/zlib-ng/cmake/detect-coverage.cmake

@@ -0,0 +1,46 @@
+# detect-coverage.cmake -- Detect supported compiler coverage flags
+# Licensed under the Zlib license, see LICENSE.md for details
+
+macro(add_code_coverage)
+    # Check for -coverage flag support for Clang/GCC
+    if(CMAKE_VERSION VERSION_LESS 3.14)
+        set(CMAKE_REQUIRED_LIBRARIES -lgcov)
+    else()
+        set(CMAKE_REQUIRED_LINK_OPTIONS -coverage)
+    endif()
+    check_c_compiler_flag(-coverage HAVE_COVERAGE)
+    set(CMAKE_REQUIRED_LIBRARIES)
+    set(CMAKE_REQUIRED_LINK_OPTIONS)
+
+    if(HAVE_COVERAGE)
+        add_compile_options(-coverage)
+        add_link_options(-coverage)
+        message(STATUS "Code coverage enabled using: -coverage")
+    else()
+        # Some versions of GCC don't support -coverage shorthand
+        if(CMAKE_VERSION VERSION_LESS 3.14)
+            set(CMAKE_REQUIRED_LIBRARIES -lgcov)
+        else()
+            set(CMAKE_REQUIRED_LINK_OPTIONS -lgcov -fprofile-arcs)
+        endif()
+        check_c_compiler_flag("-ftest-coverage -fprofile-arcs -fprofile-values" HAVE_TEST_COVERAGE)
+        set(CMAKE_REQUIRED_LIBRARIES)
+        set(CMAKE_REQUIRED_LINK_OPTIONS)
+
+        if(HAVE_TEST_COVERAGE)
+            add_compile_options(-ftest-coverage -fprofile-arcs -fprofile-values)
+            add_link_options(-lgcov -fprofile-arcs)
+            message(STATUS "Code coverage enabled using: -ftest-coverage")
+        else()
+            message(WARNING "Compiler does not support code coverage")
+            set(WITH_CODE_COVERAGE OFF)
+        endif()
+    endif()
+
+    # Set optimization level to zero for code coverage builds
+    if (WITH_CODE_COVERAGE)
+        # Use CMake compiler flag variables due to add_compile_options failure on Windows GCC
+        set(CMAKE_C_FLAGS "-O0 ${CMAKE_C_FLAGS}")
+        set(CMAKE_CXX_FLAGS "-O0 ${CMAKE_CXX_FLAGS}")
+    endif()
+endmacro()