diff --git a/gnu/packages/gcc.scm b/gnu/packages/gcc.scm
index 6247919fec..6fdc47dc94 100644
--- a/gnu/packages/gcc.scm
+++ b/gnu/packages/gcc.scm
@@ -1029,14 +1029,21 @@ using compilers other than GCC."
           (add-before 'configure 'chdir
             (lambda _
               (chdir "libstdc++-v3")))
-          #$@(let ((version (package-version gcc)))
-               (if (target-hurd64?)
-                   #~((add-after 'unpack 'patch-hurd64
-                        (lambda _
-                          (substitute* "libstdc++-v3/src/c++20/tzdb.cc"
-                            (("#if ! defined _GLIBCXX_ZONEINFO_DIR")
-                             "#if __GNU__ || ! defined _GLIBCXX_ZONEINFO_DIR")))))
-                   '())))
+          #$@(if (target-hurd64?)
+                 #~((add-after 'unpack 'patch-hurd64
+                      (lambda _
+                        (substitute* "libstdc++-v3/src/c++20/tzdb.cc"
+                          (("#if ! defined _GLIBCXX_ZONEINFO_DIR")
+                           "#if __GNU__ || ! defined _GLIBCXX_ZONEINFO_DIR")))))
+                 '())
+          #$@(if (and (target-x86?) (target-linux?)
+                      (version>=? (package-version gcc) "14"))
+                 #~((add-after 'unpack 'patch-x86_64-linux
+                      (lambda _
+                        (substitute* "libstdc++-v3/src/c++20/tzdb.cc"
+                          (("#if ! defined _GLIBCXX_ZONEINFO_DIR")
+                           "#if __x86_64__ || ! defined _GLIBCXX_ZONEINFO_DIR")))))
+                 '()))
 
       #:configure-flags '`("--disable-libstdcxx-pch"
                            ,(string-append "--with-gxx-include-dir="