>>> rpi-rgb-led-matrix 63e3e7ffdbe88223cc80e1faa508bc4f3cf2bea4 Downloading
wget --passive-ftp -nd -t 3 --no-check-certificate -O '/home/buildroot/autobuild/instance-0/output-1/build/.rpi-rgb-led-matrix-63e3e7ffdbe88223cc80e1faa508bc4f3cf2bea4.tar.gz.98F3sK/output' 'https://github.com/hzeller/rpi-rgb-led-matrix/archive/63e3e7ffdbe88223cc80e1faa508bc4f3cf2bea4/rpi-rgb-led-matrix-63e3e7ffdbe88223cc80e1faa508bc4f3cf2bea4.tar.gz' 
--2021-12-14 15:52:07--  https://github.com/hzeller/rpi-rgb-led-matrix/archive/63e3e7ffdbe88223cc80e1faa508bc4f3cf2bea4/rpi-rgb-led-matrix-63e3e7ffdbe88223cc80e1faa508bc4f3cf2bea4.tar.gz
Resolving github.com (github.com)... 140.82.113.3
Connecting to github.com (github.com)|140.82.113.3|:443... connected.
HTTP request sent, awaiting response... 302 Found
Location: https://codeload.github.com/hzeller/rpi-rgb-led-matrix/tar.gz/63e3e7ffdbe88223cc80e1faa508bc4f3cf2bea4 [following]
--2021-12-14 15:52:07--  https://codeload.github.com/hzeller/rpi-rgb-led-matrix/tar.gz/63e3e7ffdbe88223cc80e1faa508bc4f3cf2bea4
Resolving codeload.github.com (codeload.github.com)... 140.82.112.10
Connecting to codeload.github.com (codeload.github.com)|140.82.112.10|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: unspecified [application/x-gzip]
Saving to: '/home/buildroot/autobuild/instance-0/output-1/build/.rpi-rgb-led-matrix-63e3e7ffdbe88223cc80e1faa508bc4f3cf2bea4.tar.gz.98F3sK/output'

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  6200K .......... ..                                           236M=0.6s

2021-12-14 15:52:08 (9.95 MB/s) - '/home/buildroot/autobuild/instance-0/output-1/build/.rpi-rgb-led-matrix-63e3e7ffdbe88223cc80e1faa508bc4f3cf2bea4.tar.gz.98F3sK/output' saved [6361288]

rpi-rgb-led-matrix-63e3e7ffdbe88223cc80e1faa508bc4f3cf2bea4.tar.gz: OK (sha256: 5efc0293bb180b958079910e968721ff2dac291c435d065ecec9ceba8589567d)
>>> rpi-rgb-led-matrix 63e3e7ffdbe88223cc80e1faa508bc4f3cf2bea4 Extracting
gzip -d -c /home/buildroot/autobuild/instance-0/dl/rpi-rgb-led-matrix/rpi-rgb-led-matrix-63e3e7ffdbe88223cc80e1faa508bc4f3cf2bea4.tar.gz | tar --strip-components=1 -C /home/buildroot/autobuild/instance-0/output-1/build/rpi-rgb-led-matrix-63e3e7ffdbe88223cc80e1faa508bc4f3cf2bea4   -xf -
>>> rpi-rgb-led-matrix 63e3e7ffdbe88223cc80e1faa508bc4f3cf2bea4 Patching

Applying 0001-Rename-LDFLAGS-to-RGB_LDFLAGS.patch using patch: 
patching file utils/Makefile
>>> rpi-rgb-led-matrix 63e3e7ffdbe88223cc80e1faa508bc4f3cf2bea4 Configuring
>>> rpi-rgb-led-matrix 63e3e7ffdbe88223cc80e1faa508bc4f3cf2bea4 Building
/usr/bin/make -j4 PATH="/home/buildroot/autobuild/instance-0/output-1/host/bin:/home/buildroot/autobuild/instance-0/output-1/host/sbin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" AR="/home/buildroot/autobuild/instance-0/output-1/host/bin/arm-none-linux-gnueabi-ar" AS="/home/buildroot/autobuild/instance-0/output-1/host/bin/arm-none-linux-gnueabi-as" LD="/home/buildroot/autobuild/instance-0/output-1/host/bin/arm-none-linux-gnueabi-ld" NM="/home/buildroot/autobuild/instance-0/output-1/host/bin/arm-none-linux-gnueabi-nm" CC="/home/buildroot/autobuild/instance-0/output-1/host/bin/arm-none-linux-gnueabi-gcc" GCC="/home/buildroot/autobuild/instance-0/output-1/host/bin/arm-none-linux-gnueabi-gcc" CPP="/home/buildroot/autobuild/instance-0/output-1/host/bin/arm-none-linux-gnueabi-cpp" CXX="/home/buildroot/autobuild/instance-0/output-1/host/bin/arm-none-linux-gnueabi-g++" FC="/home/buildroot/autobuild/instance-0/output-1/host/bin/arm-none-linux-gnueabi-gfortran" F77="/home/buildroot/autobuild/instance-0/output-1/host/bin/arm-none-linux-gnueabi-gfortran" RANLIB="/home/buildroot/autobuild/instance-0/output-1/host/bin/arm-none-linux-gnueabi-ranlib" READELF="/home/buildroot/autobuild/instance-0/output-1/host/bin/arm-none-linux-gnueabi-readelf" STRIP="/home/buildroot/autobuild/instance-0/output-1/host/bin/arm-none-linux-gnueabi-strip" OBJCOPY="/home/buildroot/autobuild/instance-0/output-1/host/bin/arm-none-linux-gnueabi-objcopy" OBJDUMP="/home/buildroot/autobuild/instance-0/output-1/host/bin/arm-none-linux-gnueabi-objdump" AR_FOR_BUILD="/usr/bin/ar" AS_FOR_BUILD="/usr/bin/as" CC_FOR_BUILD="/usr/bin/gcc" GCC_FOR_BUILD="/usr/bin/gcc" CXX_FOR_BUILD="/usr/bin/g++" LD_FOR_BUILD="/usr/bin/ld" CPPFLAGS_FOR_BUILD="-I/home/buildroot/autobuild/instance-0/output-1/host/include" CFLAGS_FOR_BUILD="-O2 -I/home/buildroot/autobuild/instance-0/output-1/host/include" CXXFLAGS_FOR_BUILD="-O2 -I/home/buildroot/autobuild/instance-0/output-1/host/include" LDFLAGS_FOR_BUILD="-L/home/buildroot/autobuild/instance-0/output-1/host/lib -Wl,-rpath,/home/buildroot/autobuild/instance-0/output-1/host/lib" FCFLAGS_FOR_BUILD="" DEFAULT_ASSEMBLER="/home/buildroot/autobuild/instance-0/output-1/host/bin/arm-none-linux-gnueabi-as" DEFAULT_LINKER="/home/buildroot/autobuild/instance-0/output-1/host/bin/arm-none-linux-gnueabi-ld" CPPFLAGS="-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64" CFLAGS="-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os -g0 -D_FORTIFY_SOURCE=1" CXXFLAGS="-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os -g0 -D_FORTIFY_SOURCE=1" LDFLAGS="" FCFLAGS=" -Os -g0" FFLAGS=" -Os -g0" PKG_CONFIG="/home/buildroot/autobuild/instance-0/output-1/host/bin/pkg-config" STAGING_DIR="/home/buildroot/autobuild/instance-0/output-1/host/arm-buildroot-linux-gnueabi/sysroot" INTLTOOL_PERL=/usr/bin/perl CXXFLAGS="-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os -g0 -D_FORTIFY_SOURCE=1 -fPIC" -C /home/buildroot/autobuild/instance-0/output-1/build/rpi-rgb-led-matrix-63e3e7ffdbe88223cc80e1faa508bc4f3cf2bea4/lib all
make[1]: Entering directory '/home/buildroot/autobuild/instance-0/output-1/build/rpi-rgb-led-matrix-63e3e7ffdbe88223cc80e1faa508bc4f3cf2bea4/lib'
/home/buildroot/autobuild/instance-0/output-1/host/bin/arm-none-linux-gnueabi-g++ -I../include -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os -g0 -D_FORTIFY_SOURCE=1 -fPIC -c -o gpio.o gpio.cc
/home/buildroot/autobuild/instance-0/output-1/host/bin/arm-none-linux-gnueabi-g++ -I../include -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os -g0 -D_FORTIFY_SOURCE=1 -fPIC -c -o led-matrix.o led-matrix.cc
/home/buildroot/autobuild/instance-0/output-1/host/bin/arm-none-linux-gnueabi-g++ -I../include -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os -g0 -D_FORTIFY_SOURCE=1 -fPIC -c -o options-initialize.o options-initialize.cc
/home/buildroot/autobuild/instance-0/output-1/host/bin/arm-none-linux-gnueabi-g++ -I../include -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os -g0 -D_FORTIFY_SOURCE=1 -fPIC -c -o framebuffer.o framebuffer.cc
In file included from framebuffer.cc:20:0:
framebuffer-internal.h:83:10: error: 'constexpr' does not name a type
   static constexpr int kBitPlanes = 11;
          ^
framebuffer-internal.h:83:10: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11
framebuffer-internal.h:84:10: error: 'constexpr' does not name a type
   static constexpr int kDefaultBitPlanes = 11;
          ^
framebuffer-internal.h:84:10: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11
gpio.cc: In function 'void rgb_matrix::{anonymous}::WriteTo(const char*, const char*)':
gpio.cc:440:37: warning: ignoring return value of 'ssize_t write(int, const void*, size_t)', declared with attribute warn_unused_result [-Wunused-result]
   (void) write(fd, str, strlen(str));  // Best effort. Ignore return value.
                                     ^
framebuffer.cc: In constructor 'rgb_matrix::internal::Framebuffer::Framebuffer(int, int, int, int, const char*, bool, rgb_matrix::internal::PixelDesignatorMap**)':
framebuffer.cc:296:15: error: 'kBitPlanes' was not declared in this scope
     pwm_bits_(kBitPlanes), do_luminance_correct_(true), brightness_(100),
               ^
framebuffer.cc: In static member function 'static void rgb_matrix::internal::Framebuffer::InitGPIO(rgb_matrix::GPIO*, int, int, bool, int, int, int)':
framebuffer.cc:458:23: error: 'kBitPlanes' was not declared in this scope
   for (int b = 0; b < kBitPlanes; ++b) {
                       ^
framebuffer.cc: In member function 'bool rgb_matrix::internal::Framebuffer::SetPWMBits(uint8_t)':
framebuffer.cc:569:28: error: 'kBitPlanes' was not declared in this scope
   if (value < 1 || value > kBitPlanes)
                            ^
framebuffer.cc: In member function 'gpio_bits_t* rgb_matrix::internal::Framebuffer::ValueAt(int, int, int)':
framebuffer.cc:576:54: error: 'kBitPlanes' was not declared in this scope
   return &bitplane_buffer_[ double_row * (columns_ * kBitPlanes)
                                                      ^
framebuffer.cc: In member function 'void rgb_matrix::internal::Framebuffer::Clear()':
framebuffer.cc:587:66: error: 'kBitPlanes' was not declared in this scope
            sizeof(*bitplane_buffer_) * double_rows_ * columns_ * kBitPlanes);
                                                                  ^
framebuffer.cc: In function 'uint16_t rgb_matrix::internal::luminance_cie1931(uint8_t, uint8_t)':
framebuffer.cc:593:29: error: 'kBitPlanes' is not a member of 'rgb_matrix::internal::Framebuffer'
   float out_factor = ((1 << internal::Framebuffer::kBitPlanes) - 1);
                             ^
framebuffer.cc: In function 'uint16_t rgb_matrix::internal::DirectMapColor(uint8_t, uint8_t)':
framebuffer.cc:621:3: error: 'constexpr' was not declared in this scope
   constexpr int shift = internal::Framebuffer::kBitPlanes - 8;
   ^
framebuffer.cc:621:13: error: expected ';' before 'int'
   constexpr int shift = internal::Framebuffer::kBitPlanes - 8;
             ^
framebuffer.cc:622:11: error: 'shift' was not declared in this scope
   return (shift > 0) ? (c << shift) : (c >> -shift);
           ^
framebuffer.cc: In member function 'void rgb_matrix::internal::Framebuffer::Fill(uint8_t, uint8_t, uint8_t)':
framebuffer.cc:651:16: error: 'kBitPlanes' was not declared in this scope
   for (int b = kBitPlanes - pwm_bits_; b < kBitPlanes; ++b) {
                ^
framebuffer.cc: In member function 'void rgb_matrix::internal::Framebuffer::SetPixel(int, int, uint8_t, uint8_t, uint8_t)':
framebuffer.cc:680:29: error: 'kBitPlanes' was not declared in this scope
   const int min_bit_plane = kBitPlanes - pwm_bits_;
                             ^
framebuffer.cc: In member function 'void rgb_matrix::internal::Framebuffer::DumpToMatrix(rgb_matrix::GPIO*, int)':
framebuffer.cc:833:47: error: 'kBitPlanes' was not declared in this scope
   const int start_bit = std::max(pwm_low_bit, kBitPlanes - pwm_bits_);
                                               ^
In file included from options-initialize.cc:29:0:
framebuffer-internal.h:83:10: error: 'constexpr' does not name a type
   static constexpr int kBitPlanes = 11;
          ^
framebuffer-internal.h:83:10: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11
framebuffer-internal.h:84:10: error: 'constexpr' does not name a type
   static constexpr int kDefaultBitPlanes = 11;
          ^
framebuffer-internal.h:84:10: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11
Makefile:185: recipe for target 'framebuffer.o' failed
make[1]: *** [framebuffer.o] Error 1
make[1]: *** Waiting for unfinished jobs....
options-initialize.cc: In function 'void rgb_matrix::PrintMatrixFlags(FILE*, const rgb_matrix::RGBMatrix::Options&, const rgb_matrix::RuntimeOptions&)':
options-initialize.cc:335:11: error: 'kBitPlanes' is not a member of 'rgb_matrix::internal::Framebuffer'
           internal::Framebuffer::kBitPlanes, d.pwm_bits,
           ^
options-initialize.cc: In member function 'bool rgb_matrix::RGBMatrix::Options::Validate(std::string*) const':
options-initialize.cc:416:35: error: 'kBitPlanes' is not a member of 'rgb_matrix::internal::Framebuffer'
   if (pwm_bits <= 0 || pwm_bits > internal::Framebuffer::kBitPlanes) {
                                   ^
options-initialize.cc:420:14: error: 'kBitPlanes' is not a member of 'rgb_matrix::internal::Framebuffer'
              internal::Framebuffer::kBitPlanes);
              ^
In file included from led-matrix.cc:34:0:
framebuffer-internal.h:83:10: error: 'constexpr' does not name a type
   static constexpr int kBitPlanes = 11;
          ^
framebuffer-internal.h:83:10: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11
framebuffer-internal.h:84:10: error: 'constexpr' does not name a type
   static constexpr int kDefaultBitPlanes = 11;
          ^
framebuffer-internal.h:84:10: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11
led-matrix.cc: In constructor 'rgb_matrix::RGBMatrix::Options::Options()':
led-matrix.cc:276:12: error: 'kDefaultBitPlanes' is not a member of 'rgb_matrix::internal::Framebuffer'
   pwm_bits(internal::Framebuffer::kDefaultBitPlanes),
            ^
Makefile:185: recipe for target 'options-initialize.o' failed
make[1]: *** [options-initialize.o] Error 1
Makefile:185: recipe for target 'led-matrix.o' failed
make[1]: *** [led-matrix.o] Error 1
make[1]: Leaving directory '/home/buildroot/autobuild/instance-0/output-1/build/rpi-rgb-led-matrix-63e3e7ffdbe88223cc80e1faa508bc4f3cf2bea4/lib'
package/pkg-generic.mk:292: recipe for target '/home/buildroot/autobuild/instance-0/output-1/build/rpi-rgb-led-matrix-63e3e7ffdbe88223cc80e1faa508bc4f3cf2bea4/.stamp_built' failed
make: *** [/home/buildroot/autobuild/instance-0/output-1/build/rpi-rgb-led-matrix-63e3e7ffdbe88223cc80e1faa508bc4f3cf2bea4/.stamp_built] Error 2
make: Leaving directory '/home/buildroot/autobuild/instance-0/buildroot'