[Bug target/49764] New: [gcc-avr] Compiling for Arduino is not working

["artemeas at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49764

           Summary: [gcc-avr] Compiling for Arduino is not working
           Product: gcc
           Version: 4.6.1
            Status: UNCONFIRMED
          Severity: critical
          Priority: P3
         Component: target
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: artemeas@gmail.com


Compiling any of the examples in arduino (IDE) gives this:

In file included from
/usr/share/arduino/hardware/arduino/cores/arduino/Tone.cpp:37:0:
/usr/share/arduino/hardware/arduino/cores/arduino/pins_arduino.h:66:48: error:
variable 'port_to_mode_PGM' must be const in order to be put into read-only
section by means of '__attribute__((progmem))'
/usr/share/arduino/hardware/arduino/cores/arduino/pins_arduino.h:67:49: error:
variable 'port_to_input_PGM' must be const in order to be put into read-only
section by means of '__attribute__((progmem))'
/usr/share/arduino/hardware/arduino/cores/arduino/pins_arduino.h:68:50: error:
variable 'port_to_output_PGM' must be const in order to be put into read-only
section by means of '__attribute__((progmem))'
/usr/share/arduino/hardware/arduino/cores/arduino/pins_arduino.h:70:54: error:
variable 'digital_pin_to_port_PGM' must be const in order to be put into
read-only section by means of '__attribute__((progmem))'
/usr/share/arduino/hardware/arduino/cores/arduino/pins_arduino.h:72:58: error:
variable 'digital_pin_to_bit_mask_PGM' must be const in order to be put into
read-only section by means of '__attribute__((progmem))'
/usr/share/arduino/hardware/arduino/cores/arduino/pins_arduino.h:73:55: error:
variable 'digital_pin_to_timer_PGM' must be const in order to be put into
read-only section by means of '__attribute__((progmem))'
/usr/share/arduino/hardware/arduino/cores/arduino/Tone.cpp:108:45: error:
variable 'tone_pin_to_timer_PGM' must be const in order to be put into
read-only section by means of '__attribute__((progmem))'


Additional info:
Occures only on gcc-avr-4.6.1-1, reinstalling previous (gcc-avr-4.6.0-3) gives
successful compilation.
I checked the file files pins_arduino.h, pins_arduino.c and Tone.cpp on both
gcc-avr-4.6.1-1 and gcc-avr-4.6.0-3 they are equal. So the issue is in the
gcc-avr package.


Steps to reproduce:
1. Open arduino (IDE)
2. Select any example from File->Examples
3. Click on play icon (compile)

Step 2 can be left out, just clicking play icon (compile) on an empty sketch
gives same error on gcc-avr-4.6.1-1