doxygen: fix linker errors in darwin build

pkgs/development/tools/documentation/doxygen/default.nix

@@ -30,6 +30,12 @@ stdenv.mkDerivation (finalAttrs: {
       --replace-fail 'JAVACC_CHAR_TYPE=\"unsigned char\"' \
                      'JAVACC_CHAR_TYPE=\"char8_t\"' \
       --replace-fail "CMAKE_CXX_STANDARD 17" "CMAKE_CXX_STANDARD 20"
+  ''
+  # otherwise getting linker errors for deps
+  + lib.optionalString stdenv.hostPlatform.isDarwin ''
+    substituteInPlace CMakeLists.txt \
+      --replace-fail 'set(CMAKE_INTERPROCEDURAL_OPTIMIZATION TRUE)' \
+                     'set(CMAKE_INTERPROCEDURAL_OPTIMIZATION FALSE)'
   '';
 
   nativeBuildInputs = [
@@ -45,13 +51,10 @@ stdenv.mkDerivation (finalAttrs: {
     fmt
     sqlite
   ]
-  ++ lib.optionals (qt5 != null) (
-    with qt5;
-    [
-      qtbase
-      wrapQtAppsHook
-    ]
-  );
+  ++ lib.optionals (qt5 != null) [
+    qt5.qtbase
+    qt5.wrapQtAppsHook
+  ];
 
   cmakeFlags = [
     "-Duse_sys_spdlog=ON"