--- old/make/lib/Awt2dLibraries.gmk	2019-11-12 23:41:42.098237600 +0900
+++ new/make/lib/Awt2dLibraries.gmk	2019-11-12 23:41:41.510109100 +0900
@@ -371,6 +371,16 @@
   BUILD_LIBLCMS_INCLUDE_FILES :=
 endif
 
+BUILD_LIBLCMS_DISABLE_WARNINGS_gcc := format-nonliteral type-limits \
+    misleading-indentation undef unused-function
+ifeq ($(TOOLCHAIN_TYPE), gcc)
+  GCC_MAJOR_VER := $(shell $(ECHO) $(CC_VERSION_NUMBER) | $(CUT) -d . -f 1)
+  GCC_8_OR_LATER := $(shell [ $(GCC_MAJOR_VER) -ge 8 ] && echo true)
+  ifeq ($(GCC_8_OR_LATER), true)
+    BUILD_LIBLCMS_DISABLE_WARNINGS_gcc += stringop-truncation
+  endif
+endif
+
 $(eval $(call SetupJdkLibrary, BUILD_LIBLCMS, \
     NAME := lcms, \
     INCLUDE_FILES := $(BUILD_LIBLCMS_INCLUDE_FILES), \
@@ -382,8 +392,7 @@
         common/awt/debug \
         libawt/java2d, \
     HEADERS_FROM_SRC := $(LIBLCMS_HEADERS_FROM_SRC), \
-    DISABLED_WARNINGS_gcc := format-nonliteral type-limits \
-        misleading-indentation undef unused-function, \
+    DISABLED_WARNINGS_gcc := $(BUILD_LIBLCMS_DISABLE_WARNINGS_gcc), \
     DISABLED_WARNINGS_clang := tautological-compare format-nonliteral undef, \
     DISABLED_WARNINGS_solstudio := E_STATEMENT_NOT_REACHED, \
     DISABLED_WARNINGS_microsoft := 4819, \