From be5e0230c68c453dac9869f84d5b266d2e4983b2 Mon Sep 17 00:00:00 2001 From: Fabrice Fontaine Date: Thu, 7 Oct 2021 18:41:12 +0200 Subject: [PATCH] package/boinc: fix build with autoconf >= 2.70 Fix the following build failure raised since bump of autoconf to version 2.71 in commit ecd54b65c1f998a7ccd91f7c523e4ff38c4781da and http://git.savannah.gnu.org/gitweb/?p=autoconf.git;a=commit;h=ec90049dfcf4538750e61d675d885157fa5ca7f8: checking for /home/buildroot/autobuild/instance-0/output-1/host/bin/mips-linux-gnu-gcc options needed to detect all undeclared functions... cannot detect configure: error: in `/home/buildroot/autobuild/instance-0/output-1/build/boinc-7.16.18': configure: error: cannot make /home/buildroot/autobuild/instance-0/output-1/host/bin/mips-linux-gnu-gcc report undeclared builtins This error raised because AC_CHECK_DECLS returns an error due to -mavx flag: mips-linux-gnu-gcc: error: unrecognized command line option '-mavx' To fix this build failure, hard code ac_cv_c_undeclared_builtin_options to 'none needed' as removing '-mavx' from CPPFLAGS will hinder the detection of xgetbv, xgetbv, __xgetbv, cpuid, _cpuid and __cpuid Fixes: - http://autobuild.buildroot.org/results/4b468a5d3bfbff9638316ca930ef791867774aef Signed-off-by: Fabrice Fontaine Signed-off-by: Thomas Petazzoni --- package/boinc/boinc.mk | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/package/boinc/boinc.mk b/package/boinc/boinc.mk index 12394ae924..567ffc923c 100644 --- a/package/boinc/boinc.mk +++ b/package/boinc/boinc.mk @@ -14,7 +14,15 @@ BOINC_CPE_ID_VENDOR = rom_walton BOINC_SELINUX_MODULES = boinc BOINC_DEPENDENCIES = host-pkgconf libcurl openssl BOINC_AUTORECONF = YES -BOINC_CONF_ENV = ac_cv_path__libcurl_config=$(STAGING_DIR)/usr/bin/curl-config +# The ac_cv_c_undeclared_builtin_options value is to help +# AC_CHECK_DECLS realize that it doesn't need any particular compiler +# option to get an error when building a program that uses undeclared +# symbols. Otherwise, AC_CHECK_DECLS is confused by the configure +# script unconditionally passing -mavx, which only exists on x86, and +# therefore causes a failure on all other architectures. +BOINC_CONF_ENV = \ + ac_cv_c_undeclared_builtin_options='none needed' \ + ac_cv_path__libcurl_config=$(STAGING_DIR)/usr/bin/curl-config BOINC_CONF_OPTS = \ --disable-apps \ --disable-boinczip \