diff --git a/pkgs/development/r-modules/default.nix b/pkgs/development/r-modules/default.nix
index a992a7073486..cd3e4662c20f 100644
--- a/pkgs/development/r-modules/default.nix
+++ b/pkgs/development/r-modules/default.nix
@@ -1074,6 +1074,14 @@ let
       ];
     });
 
+    gmapR = old.gmapR.overrideAttrs (attrs: {
+      env = (attrs.env or { }) // {
+        # Avoid incompatible pointer type error
+        NIX_CFLAGS_COMPILE = attrs.env.NIX_CFLAGS_COMPILE +
+          " -Wno-implicit-function-declaration -Wno-incompatible-pointer-types";
+      };
+    });
+
     timeless = old.timeless.overrideAttrs (attrs: {
       preConfigure = "patchShebangs configure";
       cargoDeps = pkgs.rustPlatform.fetchCargoVendor {