try to fix cross-compiler tests

Makefile

@@ -227,7 +227,7 @@ ppcbuild: clean
 	CC=powerpc-linux-gnu-gcc CFLAGS="-m32 -Wno-attributes -Werror" $(MAKE) -j allzstd
 
 ppc64build: clean
-	CC=powerpc-linux-gnu-gcc CFLAGS=-Werror TARGET_ARCH=-m64 $(MAKE) -j allzstd
+	CC=powerpc-linux-gnu-gcc CFLAGS="-m64 -Werror" $(MAKE) -j allzstd
 
 armfuzz: clean
 	CC=arm-linux-gnueabi-gcc QEMU_SYS=qemu-arm-static MOREFLAGS="-static" FUZZER_FLAGS=--no-big-tests $(MAKE) -C $(TESTDIR) fuzztest

appveyor.yml

@@ -26,7 +26,7 @@
     - COMPILER: "clang"
       HOST:     "mingw"
       PLATFORM: "x64"
-      SCRIPT:   "MOREFLAGS='--target=x86_64-w64-mingw32 -Werror -Wconversion -Wno-sign-conversion' make allzstd"
+      SCRIPT:   "MOREFLAGS='--target=x86_64-w64-mingw32 -Werror -Wconversion -Wno-sign-conversion' make -j allzstd V=1"
       BUILD:    "true"
 
     - COMPILER: "gcc"
@@ -204,7 +204,7 @@
     - COMPILER: "clang"
       HOST:     "mingw"
       PLATFORM: "x64"
-      SCRIPT:   "CFLAGS='--target=x86_64-w64-mingw32 -Werror -Wconversion -Wno-sign-conversion' make -j allzstd"
+      SCRIPT:   "CFLAGS='--target=x86_64-w64-mingw32 -Werror -Wconversion -Wno-sign-conversion' make -j allzstd V=1"
 
     - COMPILER: "visual"
       HOST:     "visual"

programs/Makefile

@@ -233,7 +233,7 @@ $(BUILD_DIR)/zstd : $(ZSTD_OBJ)
 	@echo "$(LZMA_MSG)"
 	@echo "$(LZ4_MSG)"
 	@echo LINK $@
-	$(LINK.o) $^ $(LDLIBS) -o $@$(EXT)
+	$(CC) $(FLAGS) $^ $(LDLIBS) -o $@$(EXT)
 
 ifeq ($(HAVE_HASH),1)
 SRCBIN_HASH = $(shell cat $(BUILD_DIR)/zstd 2> $(VOID) | $(HASH) | cut -f 1 -d " ")