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lib/Adafruit_mfGFX/src/Adafruit_mfGFX.cpp:46:0: warning: "pgm_read_byte" redefined [enabled by default]
 #define pgm_read_byte(addr) (*(const uint8_t *)(addr))
 ^
In file included from ../wiring/inc/spark_wiring_arduino.h:35:0,
                 from ./inc/application.h:92,
                 from lib/Adafruit_mfGFX/src/Adafruit_mfGFX.h:13,
                 from lib/Adafruit_mfGFX/src/Adafruit_mfGFX.cpp:42:
../wiring/inc/avr/pgmspace.h:98:0: note: this is the location of the previous definition
 #define pgm_read_byte(addr) (*(const unsigned char *)(addr))
 ^
lib/Adafruit_mfGFX/src/Adafruit_mfGFX.cpp: In member function 'void Adafruit_GFX::drawChar(int16_t, int16_t, unsigned char, uint16_t, uint16_t, uint8_t)':
lib/Adafruit_mfGFX/src/Adafruit_mfGFX.cpp:487:7: warning: 'line' may be used uninitialized in this function [-Wmaybe-uninitialized]
       if (line & 0x80) {
       ^
In file included from lib/RGBmatrixPanelCPLD/src/RGBmatrixPanelCPLD.cpp:46:0:

lib/RGBmatrixPanelCPLD/src/gamma.h:6:36: error: 'const uint8_t gamma []' redeclared as different kind of symbol
 static const uint8_t PROGMEM gamma[] = {
                                    ^


In file included from /usr/local/gcc-arm-embedded-gcc-arm-none-eabi-4_8-2014q2-20140609-linux-tar-bz2/arm-none-eabi/include/c++/4.8.4/cmath:44:0,
                 from /usr/local/gcc-arm-embedded-gcc-arm-none-eabi-4_8-2014q2-20140609-linux-tar-bz2/arm-none-eabi/include/c++/4.8.4/random:38,
                 from ../system/inc/channel.h:12,
                 from ../system/inc/active_object.h:31,
                 from ../system/inc/system_task.h:33,
                 from ../wiring/inc/spark_wiring_usbserial.h:33,
                 from ./inc/application.h:45,
                 from lib/RGBmatrixPanelCPLD/src/RGBmatrixPanelCPLD.cpp:44:

/usr/local/gcc-arm-embedded-gcc-arm-none-eabi-4_8-2014q2-20140609-linux-tar-bz2/arm-none-eabi/include/math.h:296:15: error: previous declaration of 'double gamma(double)'
 extern double gamma _PARAMS((double));
               ^


In file included from ../wiring/inc/spark_wiring_arduino.h:35:0,
                 from ./inc/application.h:92,
                 from lib/RGBmatrixPanelCPLD/src/RGBmatrixPanelCPLD.cpp:44:
lib/RGBmatrixPanelCPLD/src/RGBmatrixPanelCPLD.cpp: In member function 'uint16_t RGBmatrixPanelCPLD::Color888(uint8_t, uint8_t, uint8_t, boolean)':
lib/RGBmatrixPanelCPLD/src/RGBmatrixPanelCPLD.cpp:349:31: warning: pointer to a function used in arithmetic [-Wpointer-arith]
     r = pgm_read_byte(&gamma[r]); // Gamma correction table maps
                               ^
../wiring/inc/avr/pgmspace.h:98:55: note: in definition of macro 'pgm_read_byte'
 #define pgm_read_byte(addr) (*(const unsigned char *)(addr))
                                                       ^
lib/RGBmatrixPanelCPLD/src/RGBmatrixPanelCPLD.cpp:350:31: warning: pointer to a function used in arithmetic [-Wpointer-arith]
     g = pgm_read_byte(&gamma[g]); // 8-bit input to 4-bit output
                               ^
../wiring/inc/avr/pgmspace.h:98:55: note: in definition of macro 'pgm_read_byte'
 #define pgm_read_byte(addr) (*(const unsigned char *)(addr))
                                                       ^
lib/RGBmatrixPanelCPLD/src/RGBmatrixPanelCPLD.cpp:351:31: warning: pointer to a function used in arithmetic [-Wpointer-arith]
     b = pgm_read_byte(&gamma[b]);
                               ^
../wiring/inc/avr/pgmspace.h:98:55: note: in definition of macro 'pgm_read_byte'
 #define pgm_read_byte(addr) (*(const unsigned char *)(addr))
                                                       ^
lib/RGBmatrixPanelCPLD/src/RGBmatrixPanelCPLD.cpp: In member function 'uint16_t RGBmatrixPanelCPLD::ColorHSV(long int, uint8_t, uint8_t, boolean)':
lib/RGBmatrixPanelCPLD/src/RGBmatrixPanelCPLD.cpp:390:43: warning: pointer to a function used in arithmetic [-Wpointer-arith]
     r = pgm_read_byte(&gamma[(r * v1) >> 8]); // Gamma correction table maps
                                           ^
../wiring/inc/avr/pgmspace.h:98:55: note: in definition of macro 'pgm_read_byte'
 #define pgm_read_byte(addr) (*(const unsigned char *)(addr))
                                                       ^
lib/RGBmatrixPanelCPLD/src/RGBmatrixPanelCPLD.cpp:391:43: warning: pointer to a function used in arithmetic [-Wpointer-arith]
     g = pgm_read_byte(&gamma[(g * v1) >> 8]); // 8-bit input to 4-bit output
                                           ^
../wiring/inc/avr/pgmspace.h:98:55: note: in definition of macro 'pgm_read_byte'
 #define pgm_read_byte(addr) (*(const unsigned char *)(addr))
                                                       ^
lib/RGBmatrixPanelCPLD/src/RGBmatrixPanelCPLD.cpp:392:43: warning: pointer to a function used in arithmetic [-Wpointer-arith]
     b = pgm_read_byte(&gamma[(b * v1) >> 8]);
                                           ^
../wiring/inc/avr/pgmspace.h:98:55: note: in definition of macro 'pgm_read_byte'
 #define pgm_read_byte(addr) (*(const unsigned char *)(addr))
                                                       ^
make[1]: *** [../build/target/user/platform-6RGBmatrixPanelCPLD/src/RGBmatrixPanelCPLD.o] Error 1
make: *** [user] Error 2