rules.mk: only select latest libgcc.a with wildcard match (#12798)

SVN-Revision: 35144

rules.mk

@@ -116,9 +116,9 @@ TARGET_LDFLAGS:=-L$(STAGING_DIR)/usr/lib -L$(STAGING_DIR)/lib
 ifneq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
 LIBGCC_S_PATH=$(realpath $(wildcard $(call qstrip,$(CONFIG_LIBGCC_ROOT_DIR))/$(call qstrip,$(CONFIG_LIBGCC_FILE_SPEC))))
 LIBGCC_S=$(if $(LIBGCC_S_PATH),-L$(dir $(LIBGCC_S_PATH)) -lgcc_s)
-LIBGCC_A=$(realpath $(wildcard $(dir $(LIBGCC_S_PATH))/gcc/*/*/libgcc.a))
+LIBGCC_A=$(realpath $(lastword $(wildcard $(dir $(LIBGCC_S_PATH))/gcc/*/*/libgcc.a)))
 else
-LIBGCC_A=$(wildcard $(TOOLCHAIN_DIR)/lib/gcc/*/*/libgcc.a)
+LIBGCC_A=$(lastword $(wildcard $(TOOLCHAIN_DIR)/lib/gcc/*/*/libgcc.a))
 LIBGCC_S=$(if $(wildcard $(TOOLCHAIN_DIR)/lib/libgcc_s.so),-L$(TOOLCHAIN_DIR)/lib -lgcc_s,$(LIBGCC_A))
 endif
 LIBRPC=-lrpc