From a81fb110f7685b3268cd921ba72a00796f43d034 Mon Sep 17 00:00:00 2001 From: Fabrice Fontaine Date: Tue, 29 Oct 2019 10:25:07 +0100 Subject: [PATCH] configure.ac: fix protobuf/util/time_util.h detection Add -std=c++11 when checking gor protobuf/util/time_util.h otherwise test will fail on: configure:104495: checking google/protobuf/util/time_util.h usability configure:104495: /home/br-user/autobuild/run/instance-2/output/host/bin/mips-linux-gnu-g++ -c -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -D_FORTIFY_SOURCE=1 -pthread conftest.cpp >&5 In file included from /home/br-user/autobuild/run/instance-2/output/host/opt/ext-toolchain/mips-linux-gnu/include/c++/5.3.0/atomic:38:0, from /home/br-user/autobuild/run/instance-2/output/host/mips-buildroot-linux-gnu/sysroot/usr/include/google/protobuf/io/coded_stream.h:113, from /home/br-user/autobuild/run/instance-2/output/host/mips-buildroot-linux-gnu/sysroot/usr/include/google/protobuf/duration.pb.h:23, from /home/br-user/autobuild/run/instance-2/output/host/mips-buildroot-linux-gnu/sysroot/usr/include/google/protobuf/util/time_util.h:52, from conftest.cpp:188: /home/br-user/autobuild/run/instance-2/output/host/opt/ext-toolchain/mips-linux-gnu/include/c++/5.3.0/bits/c++0x_warning.h:32:2: error: #error This file requires compiler and library support for the ISO C++ 2011 standard. This support is currently experimental, and must be enabled with the -std=c++11 or -std=gnu++11 compiler options. Fixes: - http://autobuild.buildroot.net/results/0d486edaf4c51b6438adeec61fe2c55099862acb Signed-off-by: Fabrice Fontaine --- configure.ac | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/configure.ac b/configure.ac index 34386d06..59a7f355 100644 --- a/configure.ac +++ b/configure.ac @@ -2722,6 +2722,7 @@ if test "x$withval" != "xno"; then else AC_MSG_RESULT([no]) with_libgrpcpp="no (requires C++11 support)" + with_libprotobuf="no ( requires C++11 support)" fi fi @@ -4568,7 +4569,7 @@ if test "x$withval" != "xno"; then AC_CHECK_LIB([protobuf], [main], [ SAVE_CPPFLAGS="$CPPFLAGS" - CPPFLAGS="$with_libprotobuf_cppflags $PROTOBUF_CFLAGS" + CPPFLAGS="-std=c++11 $with_libprotobuf_cppflags $PROTOBUF_CFLAGS" if test "x$PROTOBUF_LIBS" = "x" then PROTOBUF_LIBS="-lprotobuf" -- 2.11.0