travis build errors

ibrary Manager: Installing codewitch-honey-crisis/htcw_bits @ ^1.0.3
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Unpacking...
Library Manager: htcw_bits @ 1.0.3 has been installed!
Library Manager: Installing codewitch-honey-crisis/htcw_data @ ^1.0.4
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Unpacking...
Library Manager: htcw_data @ 1.0.4 has been installed!
Library Manager: Installing codewitch-honey-crisis/htcw_io @ ^1.0.9
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Library Manager: htcw_io @ 1.0.9 has been installed!
Library Manager: Installing dependencies...
Found 3 compatible libraries
Scanning dependencies...
Dependency Graph
|-- <htcw_bits> 1.0.3 (/home/travis/build/codewitch-honey-crisis/gfx/.pio/libdeps/native/htcw_bits)
|-- <htcw_data> 1.0.4 (/home/travis/build/codewitch-honey-crisis/gfx/.pio/libdeps/native/htcw_data)
|-- <htcw_io> 1.0.9 (/home/travis/build/codewitch-honey-crisis/gfx/.pio/libdeps/native/htcw_io)
|   |-- <htcw_bits> 1.0.3 (/home/travis/build/codewitch-honey-crisis/gfx/.pio/libdeps/native/htcw_bits)
Building in release mode
g++ -o .pio/build/native/test/test_main.o -c -std=gnu++14 -DPLATFORMIO=50205 -DGFX_LITTLE_ENDIAN -DUNIT_TEST -DUNITY_INCLUDE_CONFIG_H -Iinclude -Isrc -I.pio/libdeps/native/htcw_io/include -I.pio/libdeps/native/htcw_io/src -I.pio/libdeps/native/htcw_data/include -I.pio/libdeps/native/htcw_data -I.pio/libdeps/native/htcw_bits/include -I.pio/libdeps/native/htcw_bits -I.pio/build/native/UnityTestLib -I/home/travis/.platformio/packages/tool-unity test/test_main.cpp
gcc -o .pio/build/native/test/tmp_pio_test_transport.o -c -DPLATFORMIO=50205 -DGFX_LITTLE_ENDIAN -DUNIT_TEST -DUNITY_INCLUDE_CONFIG_H -Iinclude -Isrc -I.pio/libdeps/native/htcw_io/include -I.pio/libdeps/native/htcw_io/src -I.pio/libdeps/native/htcw_data/include -I.pio/libdeps/native/htcw_data -I.pio/libdeps/native/htcw_bits/include -I.pio/libdeps/native/htcw_bits -I.pio/build/native/UnityTestLib -I/home/travis/.platformio/packages/tool-unity test/tmp_pio_test_transport.c
In file included from include/gfx_core.hpp:19:0,
                 from include/gfx_cpp14.hpp:2,
                 from test/test_main.cpp:5:
.pio/libdeps/native/htcw_io/include/io_stream.hpp:49:35: error: macro "putc" requires 2 arguments, but only 1 given
         virtual int putc(int value)=0;
                                   ^
.pio/libdeps/native/htcw_io/include/io_stream.hpp:88:35: error: macro "putc" requires 2 arguments, but only 1 given
         virtual int putc(int value);
                                   ^
.pio/libdeps/native/htcw_io/include/io_stream.hpp:108:35: error: macro "putc" requires 2 arguments, but only 1 given
         virtual int putc(int value);
                                   ^
.pio/libdeps/native/htcw_io/include/io_stream.hpp:166:35: error: macro "putc" requires 2 arguments, but only 1 given
         virtual int putc(int value);
                                   ^
.pio/libdeps/native/htcw_io/include/io_stream.hpp:49:37: error: ‘putc’ declared as a ‘virtual’ field
         virtual int putc(int value)=0;
                                     ^
.pio/libdeps/native/htcw_io/include/io_stream.hpp:88:21: error: ‘putc’ declared as a ‘virtual’ field
         virtual int putc(int value);
                     ^
.pio/libdeps/native/htcw_io/include/io_stream.hpp:108:21: error: ‘putc’ declared as a ‘virtual’ field
         virtual int putc(int value);
                     ^
.pio/libdeps/native/htcw_io/include/io_stream.hpp:166:21: error: ‘putc’ declared as a ‘virtual’ field
         virtual int putc(int value);
                     ^
g++ -o .pio/build/native/src/gfx_drawing.o -c -std=gnu++14 -DPLATFORMIO=50205 -DGFX_LITTLE_ENDIAN -DUNIT_TEST -DUNITY_INCLUDE_CONFIG_H -Iinclude -Isrc -I.pio/libdeps/native/htcw_io/include -I.pio/libdeps/native/htcw_io/src -I.pio/libdeps/native/htcw_data/include -I.pio/libdeps/native/htcw_data -I.pio/libdeps/native/htcw_bits/include -I.pio/libdeps/native/htcw_bits -I.pio/build/native/UnityTestLib -I/home/travis/.platformio/packages/tool-unity src/gfx_drawing.cpp
In file included from include/gfx_core.hpp:19:0,
                 from include/gfx_drawing.hpp:5,
                 from src/gfx_drawing.cpp:1:
.pio/libdeps/native/htcw_io/include/io_stream.hpp:49:35: error: macro "putc" requires 2 arguments, but only 1 given
         virtual int putc(int value)=0;
                                   ^
.pio/libdeps/native/htcw_io/include/io_stream.hpp:88:35: error: macro "putc" requires 2 arguments, but only 1 given
         virtual int putc(int value);
                                   ^
.pio/libdeps/native/htcw_io/include/io_stream.hpp:108:35: error: macro "putc" requires 2 arguments, but only 1 given
         virtual int putc(int value);
                                   ^
.pio/libdeps/native/htcw_io/include/io_stream.hpp:166:35: error: macro "putc" requires 2 arguments, but only 1 given
         virtual int putc(int value);
                                   ^
.pio/libdeps/native/htcw_io/include/io_stream.hpp:49:37: error: ‘putc’ declared as a ‘virtual’ field
         virtual int putc(int value)=0;
                                     ^
.pio/libdeps/native/htcw_io/include/io_stream.hpp:88:21: error: ‘putc’ declared as a ‘virtual’ field
         virtual int putc(int value);
                     ^
.pio/libdeps/native/htcw_io/include/io_stream.hpp:108:21: error: ‘putc’ declared as a ‘virtual’ field
         virtual int putc(int value);
                     ^
.pio/libdeps/native/htcw_io/include/io_stream.hpp:166:21: error: ‘putc’ declared as a ‘virtual’ field
         virtual int putc(int value);
                     ^
*** [.pio/build/native/src/gfx_drawing.o] Error 1
*** [.pio/build/native/test/test_main.o] Error 1