diff --git a/toolchain/toolchain/toolchain.mk b/toolchain/toolchain/toolchain.mk index d317e917d0..b16db01501 100644 --- a/toolchain/toolchain/toolchain.mk +++ b/toolchain/toolchain/toolchain.mk @@ -16,11 +16,20 @@ TOOLCHAIN_ADD_TOOLCHAIN_DEPENDENCY = NO # headers and kernel headers. This is a temporary measure until musl finds a # better solution. # +# Augment the original suggestion with __USE_MISC since recent kernels +# require this glibc internal macro. Also, as musl defines IFF_LOWER_UP, +# IFF_DORMANT and IFF_ECHO, add another macro to suppress them in the +# kernel header, and avoid macro/enum conflict. +# # [1] http://www.openwall.com/lists/musl/2015/10/08/2 ifeq ($(BR2_TOOLCHAIN_USES_MUSL),y) define TOOLCHAIN_MUSL_KERNEL_HEADERS_COMPATIBILITY_HACK $(SED) 's/^#if defined(__GLIBC__)$$/#if 1/' \ $(STAGING_DIR)/usr/include/linux/libc-compat.h + $(SED) '1s/^/#define __USE_MISC\n/' \ + $(STAGING_DIR)/usr/include/linux/libc-compat.h + $(SED) '1s/^/#define __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO 0\n/' \ + $(STAGING_DIR)/usr/include/linux/libc-compat.h endef TOOLCHAIN_POST_INSTALL_STAGING_HOOKS += TOOLCHAIN_MUSL_KERNEL_HEADERS_COMPATIBILITY_HACK TOOLCHAIN_INSTALL_STAGING = YES