diff --git openjdk.orig/jdk/make/lib/Awt2dLibraries.gmk openjdk/jdk/make/lib/Awt2dLibraries.gmk
--- openjdk.orig/jdk/make/lib/Awt2dLibraries.gmk
+++ openjdk/jdk/make/lib/Awt2dLibraries.gmk
@@ -891,6 +891,12 @@
   BUILD_LIBFONTMANAGER_ExtensionSubtables.cpp_CXXFLAGS := -fno-strict-aliasing
 endif
 
+# Turn off strict overflow with GCC for IndicRearrangementProcessor.cpp
+ifeq ($(OPENJDK_TARGET_OS), linux)
+  BUILD_LIBFONTMANAGER_IndicRearrangementProcessor.cpp_CXXFLAGS := -fno-strict-overflow
+  BUILD_LIBFONTMANAGER_IndicRearrangementProcessor2.cpp_CXXFLAGS := -fno-strict-overflow
+endif
+
 # LDFLAGS clarification:
 #   Filter relevant linker flags disallowing unresolved symbols as we cannot
 #   build-time decide to which library to link against (libawt_headless or