diff --git a/pkgs/development/compilers/gcc/default.nix b/pkgs/development/compilers/gcc/default.nix
index fdc79b575515d..7ea26f9d5d1c4 100644
--- a/pkgs/development/compilers/gcc/default.nix
+++ b/pkgs/development/compilers/gcc/default.nix
@@ -413,6 +413,8 @@ ${""}          done
   passthru = {
     inherit langC langCC langObjC langObjCpp langAda langFortran langGo langD version;
     isGNU = true;
+    defaultCStandard = if atLeast11 then 17 else if atleast5 then 11 else 89;
+    defaultCxxStandard = if atLeast11 then 17 else if atleast6 then 14 else 98;
   } // lib.optionalAttrs (!atLeast12) {
     hardeningUnsupportedFlags = lib.optionals is48 [ "stackprotector" ] ++ [ "fortify3" ];
   };
diff --git a/pkgs/development/compilers/llvm/10/clang/default.nix b/pkgs/development/compilers/llvm/10/clang/default.nix
index ad4e913041583..a340d1f382172 100644
--- a/pkgs/development/compilers/llvm/10/clang/default.nix
+++ b/pkgs/development/compilers/llvm/10/clang/default.nix
@@ -90,6 +90,8 @@ let
     passthru = {
       inherit libllvm;
       isClang = true;
+      defaultCStandard = 11;
+      defaultCxxStandard = 14;
       hardeningUnsupportedFlags = [ "fortify3" ];
     };
 
diff --git a/pkgs/development/compilers/llvm/11/clang/default.nix b/pkgs/development/compilers/llvm/11/clang/default.nix
index f0d41a3ab7347..3d7ca742fd3a0 100644
--- a/pkgs/development/compilers/llvm/11/clang/default.nix
+++ b/pkgs/development/compilers/llvm/11/clang/default.nix
@@ -95,6 +95,8 @@ let
     passthru = {
       inherit libllvm;
       isClang = true;
+      defaultCStandard = 17;
+      defaultCxxStandard = 14;
       hardeningUnsupportedFlags = [ "fortify3" ];
     };
 
diff --git a/pkgs/development/compilers/llvm/12/clang/default.nix b/pkgs/development/compilers/llvm/12/clang/default.nix
index 7ecd4efc08378..2d16759bce237 100644
--- a/pkgs/development/compilers/llvm/12/clang/default.nix
+++ b/pkgs/development/compilers/llvm/12/clang/default.nix
@@ -89,6 +89,8 @@ let
     passthru = {
       inherit libllvm;
       isClang = true;
+      defaultCStandard = 17;
+      defaultCxxStandard = 14;
       hardeningUnsupportedFlags = [ "fortify3" ];
     };
 
diff --git a/pkgs/development/compilers/llvm/13/clang/default.nix b/pkgs/development/compilers/llvm/13/clang/default.nix
index a070e64c7ddd9..ef8cf34774170 100644
--- a/pkgs/development/compilers/llvm/13/clang/default.nix
+++ b/pkgs/development/compilers/llvm/13/clang/default.nix
@@ -83,6 +83,8 @@ let
     passthru = {
       inherit libllvm;
       isClang = true;
+      defaultCStandard = 17;
+      defaultCxxStandard = 14;
       hardeningUnsupportedFlags = [ "fortify3" ];
     };
 
diff --git a/pkgs/development/compilers/llvm/14/clang/default.nix b/pkgs/development/compilers/llvm/14/clang/default.nix
index 976ff7580ac31..f9f3dec1007fb 100644
--- a/pkgs/development/compilers/llvm/14/clang/default.nix
+++ b/pkgs/development/compilers/llvm/14/clang/default.nix
@@ -86,6 +86,8 @@ let
     passthru = {
       inherit libllvm;
       isClang = true;
+      defaultCStandard = 17;
+      defaultCxxStandard = 14;
       hardeningUnsupportedFlags = [ "fortify3" ];
     };
 
diff --git a/pkgs/development/compilers/llvm/15/clang/default.nix b/pkgs/development/compilers/llvm/15/clang/default.nix
index 894db1a4975f6..513b344f4e904 100644
--- a/pkgs/development/compilers/llvm/15/clang/default.nix
+++ b/pkgs/development/compilers/llvm/15/clang/default.nix
@@ -97,6 +97,8 @@ let
     passthru = {
       inherit libllvm;
       isClang = true;
+      defaultCStandard = 17;
+      defaultCxxStandard = 14;
       hardeningUnsupportedFlags = [ "fortify3" ];
     };
 
diff --git a/pkgs/development/compilers/llvm/16/clang/default.nix b/pkgs/development/compilers/llvm/16/clang/default.nix
index 2a2656df5fe1c..1670b2f6bfc04 100644
--- a/pkgs/development/compilers/llvm/16/clang/default.nix
+++ b/pkgs/development/compilers/llvm/16/clang/default.nix
@@ -92,6 +92,8 @@ let
     passthru = {
       inherit libllvm;
       isClang = true;
+      defaultCStandard = 17;
+      defaultCxxStandard = 17;
       hardeningUnsupportedFlags = [ "fortify3" ];
     };
 
diff --git a/pkgs/development/compilers/llvm/5/clang/default.nix b/pkgs/development/compilers/llvm/5/clang/default.nix
index 70ffb3e0dd19e..e10588827e84e 100644
--- a/pkgs/development/compilers/llvm/5/clang/default.nix
+++ b/pkgs/development/compilers/llvm/5/clang/default.nix
@@ -84,6 +84,8 @@ let
     passthru = {
       inherit libllvm;
       isClang = true;
+      defaultCStandard = 11;
+      defaultCxxStandard = 98;
       hardeningUnsupportedFlags = [ "fortify3" ];
     };
 
diff --git a/pkgs/development/compilers/llvm/6/clang/default.nix b/pkgs/development/compilers/llvm/6/clang/default.nix
index bc69f1c99cf47..5ec7a7df4eb2e 100644
--- a/pkgs/development/compilers/llvm/6/clang/default.nix
+++ b/pkgs/development/compilers/llvm/6/clang/default.nix
@@ -84,6 +84,8 @@ let
     passthru = {
       inherit libllvm;
       isClang = true;
+      defaultCStandard = 11;
+      defaultCxxStandard = 14;
       hardeningUnsupportedFlags = [ "fortify3" ];
     };
 
diff --git a/pkgs/development/compilers/llvm/7/clang/default.nix b/pkgs/development/compilers/llvm/7/clang/default.nix
index 136a69e72161a..f2ecb47cf283e 100644
--- a/pkgs/development/compilers/llvm/7/clang/default.nix
+++ b/pkgs/development/compilers/llvm/7/clang/default.nix
@@ -96,6 +96,8 @@ let
     passthru = {
       inherit libllvm;
       isClang = true;
+      defaultCStandard = 11;
+      defaultCxxStandard = 14;
       hardeningUnsupportedFlags = [ "fortify3" ];
     };
 
diff --git a/pkgs/development/compilers/llvm/8/clang/default.nix b/pkgs/development/compilers/llvm/8/clang/default.nix
index 994f9bd967c41..5737390b8b63b 100644
--- a/pkgs/development/compilers/llvm/8/clang/default.nix
+++ b/pkgs/development/compilers/llvm/8/clang/default.nix
@@ -102,6 +102,8 @@ let
     passthru = {
       inherit libllvm;
       isClang = true;
+      defaultCStandard = 11;
+      defaultCxxStandard = 14;
       hardeningUnsupportedFlags = [ "fortify3" ];
     };
 
diff --git a/pkgs/development/compilers/llvm/9/clang/default.nix b/pkgs/development/compilers/llvm/9/clang/default.nix
index 75814fc11c481..fece176b3656b 100644
--- a/pkgs/development/compilers/llvm/9/clang/default.nix
+++ b/pkgs/development/compilers/llvm/9/clang/default.nix
@@ -97,6 +97,8 @@ let
     passthru = {
       inherit libllvm;
       isClang = true;
+      defaultCStandard = 11;
+      defaultCxxStandard = 14;
       hardeningUnsupportedFlags = [ "fortify3" ];
     };
 
diff --git a/pkgs/development/libraries/grpc/default.nix b/pkgs/development/libraries/grpc/default.nix
index 77bba280df966..c1c6649c8565f 100644
--- a/pkgs/development/libraries/grpc/default.nix
+++ b/pkgs/development/libraries/grpc/default.nix
@@ -70,14 +70,10 @@ stdenv.mkDerivation rec {
   # problematic, because the compatibility types in abseil will have different
   # interface definitions than the ones used for building abseil itself.
   # [1] https://github.com/grpc/grpc/blob/v1.57.0/CMakeLists.txt#L239-L243
-  ++ (let
-    defaultCxxIsOlderThan17 =
-      (stdenv.cc.isClang && lib.versionAtLeast stdenv.cc.cc.version "16.0")
-       || (stdenv.cc.isGNU && lib.versionAtLeast stdenv.cc.cc.version "11.0");
-    in lib.optionals (stdenv.hostPlatform.isDarwin && defaultCxxIsOlderThan17)
-  [
+  # TODO: Patching that line out would be a better solution.
+  ++ lib.optionals (stdenv.hostPlatform.isDarwin && stdenv.cc.cc.defaultCxxStandard >= 17) [
     "-DCMAKE_CXX_STANDARD=17"
-  ]);
+  ];
 
   # CMake creates a build directory by default, this conflicts with the
   # basel BUILD file on case-insensitive filesystems.
diff --git a/pkgs/development/libraries/protobuf/generic-v3-cmake.nix b/pkgs/development/libraries/protobuf/generic-v3-cmake.nix
index 384d2d0decb4c..a46e834c8aab9 100644
--- a/pkgs/development/libraries/protobuf/generic-v3-cmake.nix
+++ b/pkgs/development/libraries/protobuf/generic-v3-cmake.nix
@@ -80,6 +80,8 @@ let
       "-Dprotobuf_ABSL_PROVIDER=package"
     ] ++ lib.optionals (!stdenv.targetPlatform.isStatic) [
       "-Dprotobuf_BUILD_SHARED_LIBS=ON"
+    ] ++ lib.optionals (stdenv.cc.cc.defaultCxxStandard < 14) [
+      "-DCMAKE_CXX_STANDARD=14"
     ]
     # Tests fail to build on 32-bit platforms; fixed in 3.22
     # https://github.com/protocolbuffers/protobuf/issues/10418