diff --git a/CMakeLists.txt b/CMakeLists.txt
index 50862731..623b003d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -131,32 +131,30 @@ if(LIBXML2_WITH_ZLIB)
     find_package(ZLIB REQUIRED)
 endif()
 
-if (NOT MSVC)
-    check_c_source_compiles("
-        void __attribute__((destructor))
-        f(void) {}
-        int main(void) { return 0; }
-    " HAVE_FUNC_ATTRIBUTE_DESTRUCTOR)
-    check_include_files(arpa/inet.h HAVE_ARPA_INET_H)
-    check_function_exists(class HAVE_CLASS)
-    check_include_files(dlfcn.h HAVE_DLFCN_H)
-    check_library_exists(dl dlopen "" HAVE_DLOPEN)
-    check_include_files(dl.h HAVE_DL_H)
-    check_function_exists(getentropy HAVE_GETENTROPY)
-    check_library_exists(history append_history "" HAVE_LIBHISTORY)
-    check_library_exists(readline readline "" HAVE_LIBREADLINE)
-    check_function_exists(mmap HAVE_MMAP)
-    check_function_exists(munmap HAVE_MUNMAP)
-    check_include_files(netdb.h HAVE_NETDB_H)
-    check_include_files(netinet/in.h HAVE_NETINET_IN_H)
-    check_include_files(poll.h HAVE_POLL_H)
-    check_library_exists(dld shl_load "" HAVE_SHLLOAD)
-    check_include_files(stdint.h HAVE_STDINT_H)
-    check_include_files(sys/mman.h HAVE_SYS_MMAN_H)
-    check_include_files(sys/random.h HAVE_SYS_RANDOM_H)
-    check_include_files(sys/select.h HAVE_SYS_SELECT_H)
-    check_include_files(sys/socket.h HAVE_SYS_SOCKET_H)
-endif()
+check_c_source_compiles("
+    void __attribute__((destructor))
+    f(void) {}
+    int main(void) { return 0; }
+" HAVE_FUNC_ATTRIBUTE_DESTRUCTOR)
+check_include_files(arpa/inet.h HAVE_ARPA_INET_H)
+check_function_exists(class HAVE_CLASS)
+check_include_files(dlfcn.h HAVE_DLFCN_H)
+check_library_exists(dl dlopen "" HAVE_DLOPEN)
+check_include_files(dl.h HAVE_DL_H)
+check_function_exists(getentropy HAVE_GETENTROPY)
+check_library_exists(history append_history "" HAVE_LIBHISTORY)
+check_library_exists(readline readline "" HAVE_LIBREADLINE)
+check_function_exists(mmap HAVE_MMAP)
+check_function_exists(munmap HAVE_MUNMAP)
+check_include_files(netdb.h HAVE_NETDB_H)
+check_include_files(netinet/in.h HAVE_NETINET_IN_H)
+check_include_files(poll.h HAVE_POLL_H)
+check_library_exists(dld shl_load "" HAVE_SHLLOAD)
+check_include_files(stdint.h HAVE_STDINT_H)
+check_include_files(sys/mman.h HAVE_SYS_MMAN_H)
+check_include_files(sys/random.h HAVE_SYS_RANDOM_H)
+check_include_files(sys/select.h HAVE_SYS_SELECT_H)
+check_include_files(sys/socket.h HAVE_SYS_SOCKET_H)
 
 if(LIBXML2_WITH_TLS)
     check_c_source_compiles(