2 files changed, 18 insertions, 0 deletions
diff --git a/pkgs/applications/version-management/monotone/default.nix b/pkgs/applications/version-management/monotone/default.nix
index 2db433b3f8c..56e23ee1f6b 100644
--- a/pkgs/applications/version-management/monotone/default.nix
+++ b/pkgs/applications/version-management/monotone/default.nix
@@ -40,6 +40,7 @@ stdenv.mkDerivation rec {
       revert = true;
       sha256 = "0fzjdv49dx5lzvqhkvk50lkccagwx8h0bfha4a0k6l4qh36f9j7c";
     })
+    ./monotone-1.1-gcc-14.patch
   ];
 
   postPatch = ''
diff --git a/pkgs/applications/version-management/monotone/monotone-1.1-gcc-14.patch b/pkgs/applications/version-management/monotone/monotone-1.1-gcc-14.patch
new file mode 100644
index 00000000000..a5b79b6d02f
--- /dev/null
+++ b/pkgs/applications/version-management/monotone/monotone-1.1-gcc-14.patch
@@ -0,0 +1,17 @@
+Unsetting __STRICT_ANSI__ is not a supported configuration for gcc
+nowadays. gcc-14 started failing libstdc++ build as it uses gcc
+extensions without __STRICT_ANSI__: https://gcc.gnu.org/PR111824
+--- a/src/base.hh
++++ b/src/base.hh
+@@ -34,11 +34,6 @@
+ #define WIN32_LEAN_AND_MEAN
+ #endif
+ 
+-// Cygwin somehow enables strict ansi, which we don't want.
+-#ifdef __STRICT_ANSI__
+-#undef __STRICT_ANSI__
+-#endif
+-
+ #include <iosfwd>
+ #include <string>  // it would be nice if there were a <stringfwd>
+