diff --git a/pkgs/tools/text/gawk/gawkextlib.nix b/pkgs/tools/text/gawk/gawkextlib.nix
index c567b39b07d7..d89e1c7a2ac2 100644
--- a/pkgs/tools/text/gawk/gawkextlib.nix
+++ b/pkgs/tools/text/gawk/gawkextlib.nix
@@ -34,6 +34,9 @@ let
       extraBuildInputs ? [ ],
       doCheck ? true,
       patches ? [ ],
+      extraPostPatch ? "",
+      env ? { },
+      broken ? null,
     }:
     let
       is_extension = gawkextlib != null;
@@ -50,9 +53,11 @@ let
 
       inherit patches;
 
-      postPatch = ''
-        cd ${name}
-      '';
+      postPatch =
+        ''
+          cd ${name}
+        ''
+        + extraPostPatch;
 
       nativeBuildInputs = [
         autoconf
@@ -70,10 +75,12 @@ let
       setupHook = if is_extension then ./setup-hook.sh else null;
       inherit gawk;
 
+      inherit env;
+
       inherit doCheck;
       nativeCheckInputs = [ more ];
 
-      meta = with lib; {
+      meta = {
         homepage = "https://sourceforge.net/projects/gawkextlib/";
         description = "Dynamically loaded extension libraries for GNU AWK";
         mainProgram = "xmlgawk";
@@ -85,10 +92,10 @@ let
           database, use the GD graphics library, and perform unlimited
           precision MPFR calculations.
         '';
-        license = licenses.gpl3Plus;
-        platforms = platforms.unix;
-        maintainers = with maintainers; [ tomberek ];
-      };
+        license = lib.licenses.gpl3Plus;
+        platforms = lib.platforms.unix;
+        maintainers = with lib.maintainers; [ tomberek ];
+      } // lib.optionalAttrs (broken != null) { inherit broken; };
     }
   );
   gawkextlib = buildExtension {
@@ -112,11 +119,16 @@ let
     errno = buildExtension {
       inherit gawkextlib;
       name = "errno";
+      extraPostPatch = ''
+        substituteInPlace Makefile.am --replace-fail 'cpp -M' '${stdenv.cc.targetPrefix}cpp -M'
+      '';
     };
     gd = buildExtension {
       inherit gawkextlib;
       name = "gd";
       extraBuildInputs = [ gd ];
+      # GCC 14 makes this an error by default, remove when fixed upstream
+      env.NIX_CFLAGS_COMPILE = "-Wno-error=incompatible-pointer-types";
     };
     haru = buildExtension {
       inherit gawkextlib;
@@ -127,6 +139,8 @@ let
         # https://github.com/libharu/libharu/commit/88271b73c68c521a49a15e3555ef00395aa40810
         ./fix-typos-corrected-in-libharu-2.4.4.patch
       ];
+      # GCC 14 makes this an error by default, remove when fixed upstream
+      env.NIX_CFLAGS_COMPILE = "-Wno-error=incompatible-pointer-types";
     };
     json = buildExtension {
       inherit gawkextlib;
@@ -136,6 +150,9 @@ let
     lmdb = buildExtension {
       inherit gawkextlib;
       name = "lmdb";
+      extraPostPatch = ''
+        substituteInPlace Makefile.am --replace-fail 'cpp -M' '${stdenv.cc.targetPrefix}cpp -M'
+      '';
       extraBuildInputs = [ lmdb ];
       #  mdb_env_open(env, /dev/null)
       #! No such device
@@ -175,6 +192,9 @@ let
     select = buildExtension {
       inherit gawkextlib;
       name = "select";
+      extraPostPatch = ''
+        substituteInPlace Makefile.am --replace-fail 'cpp -M' '${stdenv.cc.targetPrefix}cpp -M'
+      '';
     };
     timex = buildExtension {
       inherit gawkextlib;
@@ -187,6 +207,8 @@ let
         expat
         libiconv
       ];
+      # gawk: xmlbase:14: fatal: load_ext: cannot open library `../.libs/xml.so`
+      broken = !stdenv.buildPlatform.canExecute stdenv.hostPlatform;
     };
   };
 in