From: Florian Fainelli Date: Mon, 22 May 2017 23:08:57 +0000 (-0700) Subject: elfutils: Pass -Wno-unused-result to silence warnings as errors X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=a6e5943a2afa5ffe733b9df23a4ba510d11b33fc;p=openwrt%2Fstaging%2Fhauke.git elfutils: Pass -Wno-unused-result to silence warnings as errors elfutils turns on -Werror by default, and patch 100-musl-compat.patch changes how strerror_r is used and we no longer use the function's return value. This causes the following build error/warning to occur with glibc-based toolchains: dwfl_error.c: In function 'dwfl_errmsg': dwfl_error.c:158:18: error: ignoring return value of 'strerror_r', declared with attribute warn_unused_result [-Werror=unused-result] strerror_r (error & 0xffff, s, sizeof(s)); ^ cc1: all warnings being treated as errors Fixing this would be tricky as there are two possible signatures for strerror_r (XSI and GNU), just turn off unused-result warnings instead. Signed-off-by: Florian Fainelli (cherry picked from commit 484f768dfa295d9fccd82c57cae00458f32b7182) --- diff --git a/package/libs/elfutils/Makefile b/package/libs/elfutils/Makefile index d764970c28..869513f16f 100644 --- a/package/libs/elfutils/Makefile +++ b/package/libs/elfutils/Makefile @@ -68,7 +68,7 @@ endif CONFIGURE_ARGS += \ --without-lzma -TARGET_CFLAGS += -D_GNU_SOURCE +TARGET_CFLAGS += -D_GNU_SOURCE -Wno-unused-result define Build/InstallDev $(INSTALL_DIR) $(1)/usr/include