diff --git a/package/gcc/gcc-final/gcc-final.mk b/package/gcc/gcc-final/gcc-final.mk
index 99d7047b5f..5feb96b568 100644
--- a/package/gcc/gcc-final/gcc-final.mk
+++ b/package/gcc/gcc-final/gcc-final.mk
@@ -117,6 +117,11 @@ else
 HOST_GCC_FINAL_CONF_OPTS += --disable-libgomp
 endif
 
+# allow to build gcc 14.x
+ifeq ($(BR2_nios2),y)
+HOST_GCC_FINAL_CONF_OPTS += --enable-obsolete
+endif
+
 # End with user-provided options, so that they can override previously
 # defined options.
 HOST_GCC_FINAL_CONF_OPTS += \
diff --git a/package/gcc/gcc-initial/gcc-initial.mk b/package/gcc/gcc-initial/gcc-initial.mk
index 1f8b76a942..8b4247bdad 100644
--- a/package/gcc/gcc-initial/gcc-initial.mk
+++ b/package/gcc/gcc-initial/gcc-initial.mk
@@ -42,6 +42,11 @@ HOST_GCC_INITIAL_CONF_OPTS = \
 	--disable-largefile \
 	$(call qstrip,$(BR2_EXTRA_GCC_CONFIG_OPTIONS))
 
+# allow to build gcc 14.x
+ifeq ($(BR2_nios2),y)
+HOST_GCC_INITIAL_CONF_OPTS += --enable-obsolete
+endif
+
 HOST_GCC_INITIAL_CONF_ENV = \
 	$(HOST_GCC_COMMON_CONF_ENV)