diff --git a/.cirrus.yml b/.cirrus.yml
index 9766476..d786910 100644
--- a/.cirrus.yml
+++ b/.cirrus.yml
@@ -25,7 +25,7 @@ centos7_task:
 
 centos8_task:
   container:
-    image: centos:8
+    image: quay.io/centos/centos:stream8
   install_script: |
     yum group install -y "Development Tools"
     curl -L https://github.com/Kitware/CMake/releases/download/v3.16.4/cmake-3.16.4-Linux-x86_64.tar.gz | tar xzvf - -C /usr/local --strip-components 1
diff --git a/.github/workflows/build_cmake.yml b/.github/workflows/build_cmake.yml
index e85211b..f50664b 100644
--- a/.github/workflows/build_cmake.yml
+++ b/.github/workflows/build_cmake.yml
@@ -110,7 +110,7 @@ jobs:
             cxx: clang++-5.0
 
           - name: "Windows MSVC 2019"
-            os: windows-latest
+            os: windows-2019
             build_type: Release
             packages: ninja
             generator: "Visual Studio 16 2019"
diff --git a/CMakeLists.txt b/CMakeLists.txt
index f6b7f54..7886167 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -32,6 +32,8 @@ endif()
 if(CMAKE_CXX_STANDARD LESS 11)
     message(FATAL_ERROR "CMAKE_CXX_STANDARD is less than 11, ghc::filesystem only works with C++11 and above.")
 endif()
+message(STATUS "System name: ${CMAKE_SYSTEM_NAME}")
+message(STATUS "Compiler ID: ${CMAKE_CXX_COMPILER_ID}")
 message(STATUS "CMAKE_CXX_COMPILE_FEATURES: ${CMAKE_CXX_COMPILE_FEATURES}")
 
 add_library(ghc_filesystem INTERFACE)
diff --git a/cmake/GhcHelper.cmake b/cmake/GhcHelper.cmake
index 8fffae9..ca0f787 100644
--- a/cmake/GhcHelper.cmake
+++ b/cmake/GhcHelper.cmake
@@ -1,6 +1,5 @@
 macro(AddExecutableWithStdFS targetName)
-
-if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang" AND (CMAKE_CXX_COMPILER_VERSION VERSION_EQUAL 7.0 OR CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 7.0))
+if ("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang" AND (CMAKE_CXX_COMPILER_VERSION VERSION_EQUAL 7.0 OR CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 7.0))
     if(APPLE)
         include_directories(/usr/local/opt/llvm/include)
         link_directories(/usr/local/opt/llvm/lib)
@@ -20,6 +19,9 @@ if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang" AND (CMAKE_CXX_COMPILER_VERSION
             target_link_libraries(${targetName} -stdlib=libc++)
         endif()
     endif()
+    if(${CMAKE_SYSTEM_NAME} MATCHES "(SunOS|Solaris)")
+        target_link_libraries(filesystem_test xnet)
+    endif()
     target_compile_definitions(${targetName} PRIVATE USE_STD_FS)
 endif()
 
@@ -29,6 +31,9 @@ if (CMAKE_COMPILER_IS_GNUCXX AND (CMAKE_CXX_COMPILER_VERSION VERSION_EQUAL 8.0 O
     if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 9.0)
         target_link_libraries(${targetName} -lstdc++fs)
     endif()
+    if(${CMAKE_SYSTEM_NAME} MATCHES "(SunOS|Solaris)")
+        target_link_libraries(${targetName} xnet)
+    endif()
     target_compile_options(${targetName} PRIVATE $<$<BOOL:${CYGWIN}>:-Wa,-mbig-obj>)
     target_compile_definitions(${targetName} PRIVATE USE_STD_FS)
 endif()
@@ -47,6 +52,9 @@ macro(AddTestExecutableWithStdCpp cppStd)
     add_executable(filesystem_test_cpp${cppStd} ${ARGN})
     set_property(TARGET filesystem_test_cpp${cppStd} PROPERTY CXX_STANDARD ${cppStd})
     target_link_libraries(filesystem_test_cpp${cppStd} ghc_filesystem)
+    if(${CMAKE_SYSTEM_NAME} MATCHES "(SunOS|Solaris)")
+        target_link_libraries(filesystem_test_cpp${cppStd} xnet)
+    endif()
     target_compile_options(filesystem_test_cpp${cppStd} PRIVATE
             $<$<BOOL:${EMSCRIPTEN}>:-s DISABLE_EXCEPTION_CATCHING=0>
             $<$<OR:$<CXX_COMPILER_ID:Clang>,$<CXX_COMPILER_ID:AppleClang>>:-Wall -Wextra -Wshadow -Wconversion -Wsign-conversion -Wpedantic -Werror -Wno-error=deprecated-declarations>
diff --git a/include/ghc/filesystem.hpp b/include/ghc/filesystem.hpp
index a319def..4ec6e08 100644
--- a/include/ghc/filesystem.hpp
+++ b/include/ghc/filesystem.hpp
@@ -67,6 +67,8 @@
 #define GHC_OS_WIN32
 #elif defined(__CYGWIN__)
 #define GHC_OS_CYGWIN
+#elif defined(__sun) && defined(__SVR4)
+#define GHC_OS_SOLARIS
 #elif defined(__svr4__)
 #define GHC_OS_SYS5R4
 #elif defined(BSD)
@@ -76,7 +78,6 @@
 #include <wasi/api.h>
 #elif defined(__QNX__)
 #define GHC_OS_QNX
-#define GHC_NO_DIRENT_D_TYPE
 #else
 #error "Operating system currently not supported!"
 #endif
@@ -1298,6 +1299,65 @@ GHC_FS_API std::error_code make_error_code(portable_error err);
 GHC_FS_API std::error_code make_system_error(uint32_t err = 0);
 #else
 GHC_FS_API std::error_code make_system_error(int err = 0);
+
+template <typename T, typename = int>
+struct has_d_type : std::false_type{};
+
+template <typename T>
+struct has_d_type<T, decltype((void)T::d_type, 0)> : std::true_type {};
+
+template <typename T>
+GHC_INLINE file_type file_type_from_dirent_impl(const T&, std::false_type)
+{
+    return file_type::none;
+}
+
+template <typename T>
+GHC_INLINE file_type file_type_from_dirent_impl(const T& t, std::true_type)
+{
+    switch (t.d_type) {
+#ifdef DT_BLK
+        case DT_BLK:
+            return file_type::block;
+#endif
+#ifdef DT_CHR
+        case DT_CHR:
+            return file_type::character;
+#endif
+#ifdef DT_DIR
+        case DT_DIR:
+            return file_type::directory;
+#endif
+#ifdef DT_FIFO
+        case DT_FIFO:
+            return file_type::fifo;
+#endif
+#ifdef DT_LNK
+        case DT_LNK:
+            return file_type::symlink;
+#endif
+#ifdef DT_REG
+        case DT_REG:
+            return file_type::regular;
+#endif
+#ifdef DT_SOCK
+        case DT_SOCK:
+            return file_type::socket;
+#endif
+#ifdef DT_UNKNOWN
+        case DT_UNKNOWN:
+            return file_type::none;
+#endif
+        default:
+            return file_type::unknown;
+    }
+}
+
+template <class T>
+GHC_INLINE file_type file_type_from_dirent(const T& t)
+{
+    return file_type_from_dirent_impl(t, has_d_type<T>{});
+}
 #endif
 }  // namespace detail
 
@@ -4580,7 +4640,7 @@ GHC_INLINE void last_write_time(const path& p, file_time_type new_time, std::err
 #if defined(__ANDROID_API__) && __ANDROID_API__ < 12
     if (syscall(__NR_utimensat, AT_FDCWD, p.c_str(), times, AT_SYMLINK_NOFOLLOW) != 0) {
 #else
-    if (::utimensat(AT_FDCWD, p.c_str(), times, AT_SYMLINK_NOFOLLOW) != 0) {
+    if (::utimensat((int)AT_FDCWD, p.c_str(), times, AT_SYMLINK_NOFOLLOW) != 0) {
 #endif
         ec = detail::make_system_error();
     }
@@ -5658,48 +5718,16 @@ public:
 
     void copyToDirEntry()
     {
-#ifdef GHC_NO_DIRENT_D_TYPE
-        _dir_entry._symlink_status = file_status();
-        _dir_entry._status = file_status();
-#else
         _dir_entry._symlink_status.permissions(perms::unknown);
-        switch (_entry->d_type) {
-            case DT_BLK:
-                _dir_entry._symlink_status.type(file_type::block);
-                break;
-            case DT_CHR:
-                _dir_entry._symlink_status.type(file_type::character);
-                break;
-            case DT_DIR:
-                _dir_entry._symlink_status.type(file_type::directory);
-                break;
-            case DT_FIFO:
-                _dir_entry._symlink_status.type(file_type::fifo);
-                break;
-            case DT_LNK:
-                _dir_entry._symlink_status.type(file_type::symlink);
-                break;
-            case DT_REG:
-                _dir_entry._symlink_status.type(file_type::regular);
-                break;
-            case DT_SOCK:
-                _dir_entry._symlink_status.type(file_type::socket);
-                break;
-            case DT_UNKNOWN:
-                _dir_entry._symlink_status.type(file_type::none);
-                break;
-            default:
-                _dir_entry._symlink_status.type(file_type::unknown);
-                break;
-        }
-        if (_entry->d_type != DT_LNK) {
+        auto ft = detail::file_type_from_dirent(*_entry);
+        _dir_entry._symlink_status.type(ft);
+        if (ft != file_type::symlink) {
             _dir_entry._status = _dir_entry._symlink_status;
         }
         else {
             _dir_entry._status.type(file_type::none);
             _dir_entry._status.permissions(perms::unknown);
         }
-#endif
         _dir_entry._file_size = static_cast<uintmax_t>(-1);
         _dir_entry._hard_link_count = static_cast<uintmax_t>(-1);
         _dir_entry._last_write_time = 0;
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index f9fdd18..22b9a4d 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -13,6 +13,9 @@ if(GHC_COVERAGE)
         target_compile_options(filesystem_test PUBLIC --coverage)
     endif()
     target_link_libraries(filesystem_test PUBLIC ghc_filesystem --coverage)
+    if(${CMAKE_SYSTEM_NAME} MATCHES "(SunOS|Solaris)")
+        target_link_libraries(filesystem_test PUBLIC xnet)
+    endif()
     if("cxx_std_17" IN_LIST GHC_FILESYSTEM_TEST_COMPILE_FEATURES)
         AddTestExecutableWithStdCpp(17 filesystem_test.cpp catch.hpp)
     endif()
@@ -23,6 +26,9 @@ else()
     message("Generating test runner for normal test...")
     add_executable(filesystem_test filesystem_test.cpp catch.hpp)
     target_link_libraries(filesystem_test ghc_filesystem)
+    if(${CMAKE_SYSTEM_NAME} MATCHES "(SunOS|Solaris)")
+        target_link_libraries(filesystem_test xnet)
+    endif()
     target_compile_options(filesystem_test PRIVATE
         $<$<BOOL:${EMSCRIPTEN}>:-s DISABLE_EXCEPTION_CATCHING=0>
         $<$<OR:$<CXX_COMPILER_ID:Clang>,$<CXX_COMPILER_ID:AppleClang>>:-Wall -Wextra -Wshadow -Wconversion -Wsign-conversion -Wpedantic -Werror>
@@ -67,6 +73,9 @@ add_test(multifile_test multifile_test)
 
 add_executable(fwd_impl_test fwd_test.cpp impl_test.cpp)
 target_link_libraries(fwd_impl_test ghc_filesystem)
+if(${CMAKE_SYSTEM_NAME} MATCHES "(SunOS|Solaris)")
+    target_link_libraries(fwd_impl_test xnet)
+endif()
 target_compile_options(fwd_impl_test PRIVATE
         $<$<BOOL:${EMSCRIPTEN}>:-s DISABLE_EXCEPTION_CATCHING=0>
         $<$<OR:$<CXX_COMPILER_ID:Clang>,$<CXX_COMPILER_ID:AppleClang>>:-Wall -Wextra -Wshadow -Wconversion -Wsign-conversion -Wpedantic -Werror>
diff --git a/test/filesystem_test.cpp b/test/filesystem_test.cpp
index 7fdd0a5..23aeb95 100644
--- a/test/filesystem_test.cpp
+++ b/test/filesystem_test.cpp
@@ -2163,6 +2163,7 @@ public:
 
     fs::path character_path() const
     {
+#ifndef GHC_OS_SOLARIS
         std::error_code ec;
         if (fs::exists("/dev/null", ec)) {
             return "/dev/null";
@@ -2170,6 +2171,7 @@ public:
         else if (fs::exists("NUL", ec)) {
             return "NUL";
         }
+#endif
         return fs::path();
     }
     fs::path temp_path() const { return _t.path(); }