Move more compiler workarounds to library setup

These are details of the glfw CMake target and belong in the creation of
that target.

CMakeLists.txt

@@ -66,17 +66,6 @@ endif()
 # Set compiler specific flags
 #--------------------------------------------------------------------
 if (MSVC)
-    if (MSVC90)
-        # Workaround for VS 2008 not shipping with the DirectX 9 SDK
-        include(CheckIncludeFile)
-        check_include_file(dinput.h DINPUT_H_FOUND)
-        if (NOT DINPUT_H_FOUND)
-            message(FATAL_ERROR "DirectX 9 headers not found; install DirectX 9 SDK")
-        endif()
-        # Workaround for VS 2008 not shipping with stdint.h
-        list(APPEND glfw_INCLUDE_DIRS "${GLFW_SOURCE_DIR}/deps/vs2008")
-    endif()
-
     if (NOT USE_MSVC_RUNTIME_LIBRARY_DLL)
         foreach (flag CMAKE_C_FLAGS
                       CMAKE_C_FLAGS_DEBUG
@@ -95,44 +84,6 @@ if (MSVC)
     endif()
 endif()
 
-if (MINGW)
-    # Workaround for legacy MinGW not providing XInput and DirectInput
-    include(CheckIncludeFile)
-
-    check_include_file(dinput.h DINPUT_H_FOUND)
-    check_include_file(xinput.h XINPUT_H_FOUND)
-    if (NOT DINPUT_H_FOUND OR NOT XINPUT_H_FOUND)
-        list(APPEND glfw_INCLUDE_DIRS "${GLFW_SOURCE_DIR}/deps/mingw")
-    endif()
-
-    # Enable link-time exploit mitigation features enabled by default on MSVC
-    include(CheckCCompilerFlag)
-
-    # Compatibility with data execution prevention (DEP)
-    set(CMAKE_REQUIRED_FLAGS "-Wl,--nxcompat")
-    check_c_compiler_flag("" _GLFW_HAS_DEP)
-    if (_GLFW_HAS_DEP)
-        set(CMAKE_SHARED_LINKER_FLAGS "-Wl,--nxcompat ${CMAKE_SHARED_LINKER_FLAGS}")
-    endif()
-
-    # Compatibility with address space layout randomization (ASLR)
-    set(CMAKE_REQUIRED_FLAGS "-Wl,--dynamicbase")
-    check_c_compiler_flag("" _GLFW_HAS_ASLR)
-    if (_GLFW_HAS_ASLR)
-        set(CMAKE_SHARED_LINKER_FLAGS "-Wl,--dynamicbase ${CMAKE_SHARED_LINKER_FLAGS}")
-    endif()
-
-    # Compatibility with 64-bit address space layout randomization (ASLR)
-    set(CMAKE_REQUIRED_FLAGS "-Wl,--high-entropy-va")
-    check_c_compiler_flag("" _GLFW_HAS_64ASLR)
-    if (_GLFW_HAS_64ASLR)
-        set(CMAKE_SHARED_LINKER_FLAGS "-Wl,--high-entropy-va ${CMAKE_SHARED_LINKER_FLAGS}")
-    endif()
-
-    # Clear flags again to avoid breaking later tests
-    set(CMAKE_REQUIRED_FLAGS)
-endif()
-
 #--------------------------------------------------------------------
 # Detect and select backend APIs
 #--------------------------------------------------------------------

src/CMakeLists.txt

@@ -136,6 +136,28 @@ if (MINGW)
     target_compile_definitions(glfw PRIVATE UNICODE WINVER=0x0501)
 endif()
 
+# Workaround for legacy MinGW not providing XInput and DirectInput
+if (MINGW)
+    include(CheckIncludeFile)
+    check_include_file(dinput.h DINPUT_H_FOUND)
+    check_include_file(xinput.h XINPUT_H_FOUND)
+    if (NOT DINPUT_H_FOUND OR NOT XINPUT_H_FOUND)
+        target_include_directories(glfw PRIVATE "${GLFW_SOURCE_DIR}/deps/mingw")
+    endif()
+endif()
+
+if (MSVC90)
+    # Workaround for VS 2008 not shipping with the DirectX 9 SDK
+    include(CheckIncludeFile)
+    check_include_file(dinput.h DINPUT_H_FOUND)
+    if (NOT DINPUT_H_FOUND)
+        message(FATAL_ERROR "DirectX 9 headers not found; install DirectX 9 SDK")
+    endif()
+
+    # Workaround for VS 2008 not shipping with stdint.h
+    target_include_directories(glfw PRIVATE "${GLFW_SOURCE_DIR}/deps/vs2008")
+endif()
+
 if (BUILD_SHARED_LIBS)
     if (WIN32)
         if (MINGW)
@@ -159,6 +181,35 @@ if (BUILD_SHARED_LIBS)
                               INSTALL_NAME_DIR "${CMAKE_INSTALL_LIBDIR}")
     endif()
 
+    if (MINGW)
+        # Enable link-time exploit mitigation features enabled by default on MSVC
+        include(CheckCCompilerFlag)
+
+        # Compatibility with data execution prevention (DEP)
+        set(CMAKE_REQUIRED_FLAGS "-Wl,--nxcompat")
+        check_c_compiler_flag("" _GLFW_HAS_DEP)
+        if (_GLFW_HAS_DEP)
+            target_link_libraries(glfw PRIVATE "-Wl,--nxcompat")
+        endif()
+
+        # Compatibility with address space layout randomization (ASLR)
+        set(CMAKE_REQUIRED_FLAGS "-Wl,--dynamicbase")
+        check_c_compiler_flag("" _GLFW_HAS_ASLR)
+        if (_GLFW_HAS_ASLR)
+            target_link_libraries(glfw PRIVATE "-Wl,--dynamicbase")
+        endif()
+
+        # Compatibility with 64-bit address space layout randomization (ASLR)
+        set(CMAKE_REQUIRED_FLAGS "-Wl,--high-entropy-va")
+        check_c_compiler_flag("" _GLFW_HAS_64ASLR)
+        if (_GLFW_HAS_64ASLR)
+            target_link_libraries(glfw PRIVATE "-Wl,--high-entropy-va")
+        endif()
+
+        # Clear flags again to avoid breaking later tests
+        set(CMAKE_REQUIRED_FLAGS)
+    endif()
+
     if (UNIX)
         # Hide symbols not explicitly tagged for export from the shared library
         target_compile_options(glfw PRIVATE "-fvisibility=hidden")