diff --git a/pkgs/applications/networking/instant-messengers/telegram/tdesktop/default.nix b/pkgs/applications/networking/instant-messengers/telegram/tdesktop/default.nix
index d39ac978d8d3..5cbb2d974701 100644
--- a/pkgs/applications/networking/instant-messengers/telegram/tdesktop/default.nix
+++ b/pkgs/applications/networking/instant-messengers/telegram/tdesktop/default.nix
@@ -29,6 +29,7 @@
 , webkitgtk
 , jemalloc
 , rnnoise
+, abseil-cpp
   # Transitive dependencies:
 , util-linuxMinimal
 , pcre
@@ -57,7 +58,11 @@
 # - https://github.com/void-linux/void-packages/blob/master/srcpkgs/telegram-desktop/template
 
 let
-  tg_owt = callPackage ./tg_owt.nix { };
+  tg_owt = callPackage ./tg_owt.nix {
+    abseil-cpp = abseil-cpp.override {
+      cxxStandard = "17";
+    };
+  };
 in
 mkDerivation rec {
   pname = "telegram-desktop";
diff --git a/pkgs/development/libraries/abseil-cpp/default.nix b/pkgs/development/libraries/abseil-cpp/default.nix
index 072af53757bc..2ade512de310 100644
--- a/pkgs/development/libraries/abseil-cpp/default.nix
+++ b/pkgs/development/libraries/abseil-cpp/default.nix
@@ -1,4 +1,11 @@
-{ lib, stdenv, fetchFromGitHub, fetchpatch, cmake, static ? stdenv.hostPlatform.isStatic }:
+{ lib
+, stdenv
+, fetchFromGitHub
+, fetchpatch
+, cmake
+, static ? stdenv.hostPlatform.isStatic
+, cxxStandard ? null
+}:
 
 stdenv.mkDerivation rec {
   pname = "abseil-cpp";
@@ -21,8 +28,9 @@ stdenv.mkDerivation rec {
   ];
 
   cmakeFlags = [
-    "-DCMAKE_CXX_STANDARD=17"
     "-DBUILD_SHARED_LIBS=${if static then "OFF" else "ON"}"
+  ] ++ lib.optionals (cxxStandard != null) [
+    "-DCMAKE_CXX_STANDARD=${cxxStandard}"
   ];
 
   nativeBuildInputs = [ cmake ];
diff --git a/pkgs/development/libraries/grpc/default.nix b/pkgs/development/libraries/grpc/default.nix
index 5d2b58aa3dba..8cd26ab31052 100644
--- a/pkgs/development/libraries/grpc/default.nix
+++ b/pkgs/development/libraries/grpc/default.nix
@@ -57,14 +57,13 @@ stdenv.mkDerivation rec {
     "-DgRPC_ABSL_PROVIDER=package"
     "-DBUILD_SHARED_LIBS=ON"
     "-DCMAKE_SKIP_BUILD_RPATH=OFF"
+  ] ++ lib.optionals (stdenv.hostPlatform != stdenv.buildPlatform) [
+    "-D_gRPC_PROTOBUF_PROTOC_EXECUTABLE=${buildPackages.protobuf}/bin/protoc"
+  ] ++ lib.optionals ((stdenv.hostPlatform.useLLVM or false) && lib.versionOlder stdenv.cc.cc.version "11.0") [
     # Needs to be compiled with -std=c++11 for clang < 11. Interestingly this is
     # only an issue with the useLLVM stdenv, not the darwin stdenv…
     # https://github.com/grpc/grpc/issues/26473#issuecomment-860885484
-    (if (stdenv.hostPlatform.useLLVM or false) && lib.versionOlder stdenv.cc.cc.version "11.0"
-     then "-DCMAKE_CXX_STANDARD=11"
-     else "-DCMAKE_CXX_STANDARD=17")
-  ] ++ lib.optionals (stdenv.hostPlatform != stdenv.buildPlatform) [
-    "-D_gRPC_PROTOBUF_PROTOC_EXECUTABLE=${buildPackages.protobuf}/bin/protoc"
+    "-DCMAKE_CXX_STANDARD=11"
   ];
 
   # CMake creates a build directory by default, this conflicts with the
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index c9031bddc810..6fb04c959048 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -5050,7 +5050,11 @@ with pkgs;
 
   fcitx5-chinese-addons = libsForQt5.callPackage ../tools/inputmethods/fcitx5/fcitx5-chinese-addons.nix { };
 
-  fcitx5-mozc = libsForQt5.callPackage ../tools/inputmethods/fcitx5/fcitx5-mozc.nix { };
+  fcitx5-mozc = libsForQt5.callPackage ../tools/inputmethods/fcitx5/fcitx5-mozc.nix {
+    abseil-cpp = abseil-cpp.override {
+      cxxStandard = "17";
+    };
+  };
 
   fcitx5-configtool = libsForQt5.callPackage ../tools/inputmethods/fcitx5/fcitx5-configtool.nix { };
 
@@ -31195,7 +31199,12 @@ with pkgs;
 
   or-tools = callPackage ../development/libraries/science/math/or-tools {
     python = python3;
-    abseil-cpp = abseil-cpp.override { static = true; };
+    # or-tools builds with -std=c++17, so abseil-cpp must
+    # also be built that way
+    abseil-cpp = abseil-cpp.override {
+      static = true;
+      cxxStandard = "17";
+    };
   };
 
   rubiks = callPackage ../development/libraries/science/math/rubiks { };