>>> libcpprestsdk 2.10.14 Downloading
--2020-09-19 16:28:43--  https://github.com/Microsoft/cpprestsdk/archive/v2.10.14/libcpprestsdk-2.10.14.tar.gz
Resolving github.com (github.com)... 140.82.114.4
Connecting to github.com (github.com)|140.82.114.4|:443... connected.
HTTP request sent, awaiting response... 302 Found
Location: https://codeload.github.com/microsoft/cpprestsdk/tar.gz/v2.10.14 [following]
--2020-09-19 16:28:43--  https://codeload.github.com/microsoft/cpprestsdk/tar.gz/v2.10.14
Resolving codeload.github.com (codeload.github.com)... 140.82.114.9
Connecting to codeload.github.com (codeload.github.com)|140.82.114.9|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: unspecified [application/x-gzip]
Saving to: '/tmp/instance-1/output-1/build/.libcpprestsdk-2.10.14.tar.gz.ZUwJMD/output'

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2020-09-19 16:28:44 (3.29 MB/s) - '/tmp/instance-1/output-1/build/.libcpprestsdk-2.10.14.tar.gz.ZUwJMD/output' saved [1762692]

libcpprestsdk-2.10.14.tar.gz: OK (sha256: f2628b248f714d7bbd6a536553bc3782602c68ca1b129017985dd70cc3515278)
>>> libcpprestsdk 2.10.14 Extracting
gzip -d -c /tmp/instance-1/dl/libcpprestsdk/libcpprestsdk-2.10.14.tar.gz | /tmp/instance-1/output-1/host/bin/tar --strip-components=1 -C /tmp/instance-1/output-1/build/libcpprestsdk-2.10.14   -xf -
>>> libcpprestsdk 2.10.14 Patching

Applying 0001-libcpprestsdk-fix-building-as-a-static-library.patch using patch: 
patching file Release/cmake/cpprest_find_openssl.cmake
>>> libcpprestsdk 2.10.14 Configuring
(mkdir -p /tmp/instance-1/output-1/build/libcpprestsdk-2.10.14/Release && cd /tmp/instance-1/output-1/build/libcpprestsdk-2.10.14/Release && rm -f CMakeCache.txt && PATH="/tmp/instance-1/output-1/host/bin:/tmp/instance-1/output-1/host/sbin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/bin"  /usr/bin/cmake /tmp/instance-1/output-1/build/libcpprestsdk-2.10.14/Release -DCMAKE_TOOLCHAIN_FILE="/tmp/instance-1/output-1/host/share/buildroot/toolchainfile.cmake" -DCMAKE_INSTALL_PREFIX="/usr" -DCMAKE_COLOR_MAKEFILE=OFF -DBUILD_DOC=OFF -DBUILD_DOCS=OFF -DBUILD_EXAMPLE=OFF -DBUILD_EXAMPLES=OFF -DBUILD_TEST=OFF -DBUILD_TESTS=OFF -DBUILD_TESTING=OFF -DBUILD_SHARED_LIBS=ON  -DWERROR=OFF -DBUILD_SAMPLES=OFF -DCPPREST_EXCLUDE_BROTLI=OFF -DCPPREST_EXCLUDE_WEBSOCKETS=ON -DCMAKE_CXX_FLAGS="-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os   -latomic" )
-- The C compiler identification is GNU 8.3.0
-- The CXX compiler identification is GNU 8.3.0
-- Check for working C compiler: /tmp/instance-1/output-1/host/bin/x86_64-linux-gcc
-- Check for working C compiler: /tmp/instance-1/output-1/host/bin/x86_64-linux-gcc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /tmp/instance-1/output-1/host/bin/x86_64-linux-g++
-- Check for working CXX compiler: /tmp/instance-1/output-1/host/bin/x86_64-linux-g++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Looking for pthread.h
-- Looking for pthread.h - found
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Success
-- Found Threads: TRUE  
-- Looking for include file xlocale.h
-- Looking for include file xlocale.h - found
-- Setting gcc options
-- Found ZLIB: /tmp/instance-1/output-1/host/x86_64-buildroot-linux-uclibc/sysroot/usr/lib/libz.so (found version "1.2.11") 
-- Found PkgConfig: /tmp/instance-1/output-1/host/bin/pkg-config (found version "1.6.1") 
-- Checking for module 'libbrotlienc'
--   Found libbrotlienc, version 1.0.9
-- Checking for module 'libbrotlidec'
--   Found libbrotlidec, version 1.0.9
-- Found Boost: /tmp/instance-1/output-1/host/x86_64-buildroot-linux-uclibc/sysroot/usr/include (found version "1.72.0") found components: random system thread filesystem chrono atomic date_time regex 
-- Checking for one of the modules 'openssl'
-- Performing Test _SSL_LEAK_SUPPRESS_AVAILABLE
-- Performing Test _SSL_LEAK_SUPPRESS_AVAILABLE - Failed
-- Configuring done
-- Generating done
CMake Warning:
  Manually-specified variables were not used by the project:

    BUILD_DOC
    BUILD_DOCS
    BUILD_EXAMPLE
    BUILD_EXAMPLES
    BUILD_TEST
    BUILD_TESTING


-- Build files have been written to: /tmp/instance-1/output-1/build/libcpprestsdk-2.10.14/Release
>>> libcpprestsdk 2.10.14 Building
PATH="/tmp/instance-1/output-1/host/bin:/tmp/instance-1/output-1/host/sbin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/bin"  /usr/bin/make -j32  -C /tmp/instance-1/output-1/build/libcpprestsdk-2.10.14/Release
make[1]: Entering directory '/tmp/instance-1/output-1/build/libcpprestsdk-2.10.14/Release'
make[2]: Entering directory '/tmp/instance-1/output-1/build/libcpprestsdk-2.10.14/Release'
make[3]: Entering directory '/tmp/instance-1/output-1/build/libcpprestsdk-2.10.14/Release'
Scanning dependencies of target cpprest
make[3]: Leaving directory '/tmp/instance-1/output-1/build/libcpprestsdk-2.10.14/Release'
make[3]: Entering directory '/tmp/instance-1/output-1/build/libcpprestsdk-2.10.14/Release'
[  3%] Building CXX object src/CMakeFiles/cpprest.dir/http/listener/http_server_api.cpp.o
[  7%] Building CXX object src/CMakeFiles/cpprest.dir/http/common/http_helpers.cpp.o
[ 11%] Building CXX object src/CMakeFiles/cpprest.dir/http/client/http_client_msg.cpp.o
[ 15%] Building CXX object src/CMakeFiles/cpprest.dir/http/oauth/oauth1.cpp.o
[ 19%] Building CXX object src/CMakeFiles/cpprest.dir/json/json.cpp.o
[ 26%] Building CXX object src/CMakeFiles/cpprest.dir/http/client/http_client.cpp.o
[ 26%] Building CXX object src/CMakeFiles/cpprest.dir/json/json_parsing.cpp.o
[ 30%] Building CXX object src/CMakeFiles/cpprest.dir/uri/uri_builder.cpp.o
[ 34%] Building CXX object src/CMakeFiles/cpprest.dir/http/common/http_compression.cpp.o
[ 38%] Building CXX object src/CMakeFiles/cpprest.dir/http/common/http_msg.cpp.o
[ 42%] Building CXX object src/CMakeFiles/cpprest.dir/http/listener/http_listener_msg.cpp.o
[ 46%] Building CXX object src/CMakeFiles/cpprest.dir/utilities/asyncrt_utils.cpp.o
[ 50%] Building CXX object src/CMakeFiles/cpprest.dir/http/listener/http_listener.cpp.o
[ 53%] Building CXX object src/CMakeFiles/cpprest.dir/uri/uri.cpp.o
[ 57%] Building CXX object src/CMakeFiles/cpprest.dir/http/oauth/oauth2.cpp.o
[ 61%] Building CXX object src/CMakeFiles/cpprest.dir/json/json_serialization.cpp.o
[ 65%] Building CXX object src/CMakeFiles/cpprest.dir/utilities/base64.cpp.o
[ 69%] Building CXX object src/CMakeFiles/cpprest.dir/pplx/pplxlinux.cpp.o
[ 73%] Building CXX object src/CMakeFiles/cpprest.dir/pplx/pplx.cpp.o
[ 76%] Building CXX object src/CMakeFiles/cpprest.dir/utilities/web_utilities.cpp.o
[ 80%] Building CXX object src/CMakeFiles/cpprest.dir/pplx/threadpool.cpp.o
[ 84%] Building CXX object src/CMakeFiles/cpprest.dir/http/client/http_client_asio.cpp.o
[ 88%] Building CXX object src/CMakeFiles/cpprest.dir/http/client/x509_cert_utilities.cpp.o
[ 92%] Building CXX object src/CMakeFiles/cpprest.dir/streams/fileio_posix.cpp.o
[ 96%] Building CXX object src/CMakeFiles/cpprest.dir/http/listener/http_server_asio.cpp.o
[100%] Linking CXX shared library ../Binaries/libcpprest.so
x86_64-linux-g++.br_real: error: unrecognized command line option '-R'
x86_64-linux-g++.br_real: error: unrecognized command line option '-R'
make[3]: *** [src/CMakeFiles/cpprest.dir/build.make:453: Binaries/libcpprest.so.2.10] Error 1
make[3]: Leaving directory '/tmp/instance-1/output-1/build/libcpprestsdk-2.10.14/Release'
make[2]: *** [CMakeFiles/Makefile2:94: src/CMakeFiles/cpprest.dir/all] Error 2
make[2]: Leaving directory '/tmp/instance-1/output-1/build/libcpprestsdk-2.10.14/Release'
make[1]: *** [Makefile:141: all] Error 2
make[1]: Leaving directory '/tmp/instance-1/output-1/build/libcpprestsdk-2.10.14/Release'
make: *** [package/pkg-generic.mk:269: /tmp/instance-1/output-1/build/libcpprestsdk-2.10.14/.stamp_built] Error 2
make: Leaving directory '/tmp/instance-1/buildroot'