binutils: use $(TARGET_MAKE_ENV) when calling $(MAKE)

Signed-off-by: Gustavo Zacarias <gustavo.zacarias@free-electrons.com>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/binutils/binutils.mk

@@ -108,16 +108,16 @@ endef
 # We just want libbfd, libiberty and libopcodes,
 # not the full-blown binutils in staging
 define BINUTILS_INSTALL_STAGING_CMDS
-	$(MAKE) -C $(@D)/bfd DESTDIR=$(STAGING_DIR) install
-	$(MAKE) -C $(@D)/opcodes DESTDIR=$(STAGING_DIR) install
-	$(MAKE) -C $(@D)/libiberty DESTDIR=$(STAGING_DIR) install
+	$(TARGET_MAKE_ENV) $(MAKE) -C $(@D)/bfd DESTDIR=$(STAGING_DIR) install
+	$(TARGET_MAKE_ENV) $(MAKE) -C $(@D)/opcodes DESTDIR=$(STAGING_DIR) install
+	$(TARGET_MAKE_ENV) $(MAKE) -C $(@D)/libiberty DESTDIR=$(STAGING_DIR) install
 endef
 
 # If we don't want full binutils on target
 ifneq ($(BR2_PACKAGE_BINUTILS_TARGET),y)
 define BINUTILS_INSTALL_TARGET_CMDS
 	$(TARGET_MAKE_ENV) $(MAKE) -C $(@D)/bfd DESTDIR=$(TARGET_DIR) install
-	$(MAKE) -C $(@D)/libiberty DESTDIR=$(STAGING_DIR) install
+	$(TARGET_MAKE_ENV) $(MAKE) -C $(@D)/libiberty DESTDIR=$(STAGING_DIR) install
 endef
 endif