[D3D12] Switch from gflags to cvars

third_party/cpptoml.lua

@@ -0,0 +1,8 @@
+group("third_party")
+project("cpptoml")
+  uuid("1e86cc51-3f8b-476d-9249-3b200424846b")
+  kind("Utility")
+  language("C++")
+  files({
+    "cpptoml/include/cpptoml.h",
+  })

third_party/cxxopts.lua

@@ -0,0 +1,9 @@
+group("third_party")
+project("cxxopts")
+  uuid("8b68cbe8-2da4-4f28-be14-9352eafa3168")
+  kind("Utility")
+  language("C++")
+  files({
+    "cxxopts/include/cxxopts.hpp",
+  })
+  warnings("Off")

third_party/gflags.lua

@@ -1,41 +0,0 @@
-group("third_party")
-project("gflags")
-  uuid("e319da87-75ed-4517-8f65-bd25e9cc02a3")
-  kind("StaticLib")
-  language("C++")
-
-  -- These win32-specific overrides must come before others.
-  filter("platforms:Windows")
-    defines({
-      "PATH_SEPARATOR=%%27\\\\%%27",
-    })
-    includedirs({
-      "gflags/src/windows",
-    })
-  filter({})
-
-  defines({
-    "GFLAGS_DLL_DECL=",
-    "GFLAGS_DLL_DEFINE_FLAG=",
-    "GFLAGS_DLL_DECLARE_FLAG=",
-    "_LIB",
-  })
-  includedirs({
-    "gflags/src",
-  })
-  files({
-    "gflags/src/gflags.cc",
-    "gflags/src/gflags_completions.cc",
-    "gflags/src/gflags_reporting.cc",
-    "gflags/src/mutex.h",
-    "gflags/src/util.h",
-  })
-  filter("platforms:Windows")
-    files({
-      "gflags/src/windows/config.h",
-      "gflags/src/windows/gflags/gflags.h",
-      "gflags/src/windows/gflags/gflags_completions.h",
-      "gflags/src/windows/gflags/gflags_declare.h",
-      "gflags/src/windows/port.cc",
-      "gflags/src/windows/port.h",
-    })