Arduino-tiny does not compile any sketch on recent Arduino IDE

What steps will reproduce the problem?
1. Install recent Arduino IDE (mentioned in summary)
2. Install arduino-tiny as described in readme.txt of arduino-tiny
3. Create boards.txt from proposed boards.
4. Edit plattform.txt to get rid of ANOTHER bug in arduino tiny that needs to 
be solved:
My edit:
# Default "compiler.path" is correct, change only if you want to overidde the 
initial value
#compiler.path={ide.path}/tools/avr/bin/..
compiler.path={runtime.ide.path}/hardware/tools/avr/bin/
5. Select board "ATtiny84 @ 8 MHz  (internal oscillator; BOD disabled)"
6. Try to compile a sketch - I took this: 
https://raw.githubusercontent.com/nathanchantrell/TinyTX/master/TinyTX_DHT22/Tin
yTX_DHT22.ino

What is the expected output? What do you see instead?
I would expect the sketch to compile just fine. Instead I get this error:

avr-g++: error: unrecognized argument in option '-mmcu={build.mcu}'
avr-g++: note: valid arguments to '-mmcu=' are: at43usb320 at43usb355 at76c711 
at86rf401 at90c8534 at90can128 at90can32 at90can64 at90pwm1 at90pwm161 at90pwm2 
at90pwm216 at90pwm2b at90pwm3 at90pwm316 at90pwm3b at90pwm81 at90s1200 
at90s2313 at90s2323 at90s2333 at90s2343 at90s4414 at90s4433 at90s4434 at90s8515 
at90s8535 at90scr100 at90usb1286 at90usb1287 at90usb162 at90usb646 at90usb647 
at90usb82 at94k ata5272 ata5505 ata5702m322 ata5782 ata5790 ata5790n ata5795 
ata5831 ata6285 ata6286 ata6289 ata6612c ata6613c ata6614q ata6616c ata6617c 
ata664251 atmega103 atmega128 atmega1280 atmega1281 atmega1284 atmega1284p 
atmega1284rfr2 atmega128a atmega128rfa1 atmega128rfr2 atmega16 atmega161 
atmega162 atmega163 atmega164a atmega164p atmega164pa atmega165 atmega165a 
atmega165p atmega165pa atmega168 atmega168a atmega168p atmega168pa atmega168pb 
atmega169 atmega169a atmega169p atmega169pa atmega16a atmega16hva atmega16hva2 
atmega16hvb atmega16hvbrevb atmega16m1 atmega16u2 atmega16u4 atmega2560 
atmega2561 atmega2564rfr2 atmega256rfr2 atmega32 atmega323 atmega324a 
atmega324p atmega324pa atmega325 atmega3250 atmega3250a atmega3250p 
atmega3250pa atmega325a atmega325p atmega325pa atmega328 atmega328p atmega329 
atmega3290 atmega3290a atmega3290p atmega3290pa atmega329a atmega329p 
atmega329pa atmega32a atmega32c1 atmega32hvb atmega32hvbrevb atmega32m1 
atmega32u2 atmega32u4 atmega32u6 atmega406 atmega48 atmega48a atmega48p 
atmega48pa atmega48pb atmega64 atmega640 atmega644 atmega644a atmega644p 
atmega644pa atmega644rfr2 atmega645 atmega6450 atmega6450a atmega6450p 
atmega645a atmega645p atmega649 atmega6490 atmega6490a atmega6490p atmega649a 
atmega649p atmega64a atmega64c1 atmega64hve atmega64hve2 atmega64m1 
atmega64rfr2 atmega8 atmega8515 atmega8535 atmega88 atmega88a atmega88p 
atmega88pa atmega88pb atmega8a atmega8hva atmega8u2 attiny10 attiny11 attiny12 
attiny13 attiny13a attiny15 attiny1634 attiny167 attiny20 attiny22 attiny2313 
attiny2313a attiny24 attiny24a attiny25 attiny26 attiny261 attiny261a attiny28 
attiny4 attiny40 attiny4313 attiny43u attiny44 attiny441 attiny44a attiny45 
attiny461 attiny461a attiny48 attiny5 attiny828 attiny84 attiny841 attiny84a 
attiny85 attiny861 attiny861a attiny87 attiny88 attiny9 atxmega128a1 
atxmega128a1u atxmega128a3 atxmega128a3u atxmega128a4u atxmega128b1 
atxmega128b3 atxmega128c3 atxmega128d3 atxmega128d4 atxmega16a4 atxmega16a4u 
atxmega16c4 atxmega16d4 atxmega16e5 atxmega192a3 atxmega192a3u atxmega192c3 
atxmega192d3 atxmega256a3 atxmega256a3b atxmega256a3bu atxmega256a3u 
atxmega256c3 atxmega256d3 atxmega32a4 atxmega32a4u atxmega32c3 atxmega32c4 
atxmega32d3 atxmega32d4 atxmega32e5 atxmega384c3 atxmega384d3 atxmega64a1 
atxmega64a1u atxmega64a3 atxmega64a3u atxmega64a4u atxmega64b1 atxmega64b3 
atxmega64c3 atxmega64d3 atxmega64d4 atxmega8e5 avr1 avr2 avr25 avr3 avr31 avr35 
avr4 avr5 avr51 avr6 avrtiny avrxmega2 avrxmega4 avrxmega5 avrxmega6 avrxmega7 
m3000
Error compiling.

What version of the product are you using? On what operating system?
Arduino-Ide 1.6.1 (Mac OS Experimental - nightly build) - Mac OS X Yosemite - 
Latest Version of Java 7

(Arduino-IDE 1.6.0 experimental does not even parse boards.txt successfully -> 
nightly build needed!)

Please provide any additional information below.

My boards.txt is this:

attiny84at8.name=ATtiny84 @ 8 MHz  (internal oscillator; BOD disabled)

attiny84at8.upload.tool=arduino:arduinoisp

attiny84at8.upload.maximum_size=8192
attiny84at8.upload.maximum_data_size=512

# Default clock (slowly rising power; long delay to clock; 8 MHz internal)
# Int. RC Osc. 8 MHz; Start-up time PWRDWN/RESET: 6 CK/14 CK + 64 ms; 
[CKSEL=0010 SUT=10]; default value
# Brown-out detection disabled; [BODLEVEL=111]
# Preserve EEPROM memory through the Chip Erase cycle; [EESAVE=0]

attiny84at8.bootloader.low_fuses=0xE2
attiny84at8.bootloader.high_fuses=0xD7
attiny84at8.bootloader.extended_fuses=0xFF

attiny84at8.bootloader.path=empty
attiny84at8.bootloader.file=empty84at8.hex
attiny84at8.bootloader.tool=arduino:avrdude

attiny84at8.build.mcu=attiny84
attiny84at8.build.f_cpu=8000000L
attiny84at8.build.core=tiny

###########################################################################

attiny84at1.name=ATtiny84 @ 1 MHz  (internal oscillator; BOD disabled)

attiny84at1.upload.tool=arduino:arduinoisp

attiny84at1.upload.maximum_size=8192
attiny84at1.upload.maximum_data_size=512

# Default clock (slowly rising power; long delay to clock; 8 MHz internal; 
divide clock by 8)
# Int. RC Osc. 8 MHz; Start-up time PWRDWN/RESET: 6 CK/14 CK + 64 ms; 
[CKSEL=0010 SUT=10]; default value
# Divide clock by 8 internally; [CKDIV8=0]
# Brown-out detection disabled; [BODLEVEL=111]
# Preserve EEPROM memory through the Chip Erase cycle; [EESAVE=0]

attiny84at1.bootloader.low_fuses=0x62
attiny84at1.bootloader.high_fuses=0xD7
attiny84at1.bootloader.extended_fuses=0xFF

attiny84at1.bootloader.path=empty
attiny84at1.bootloader.file=empty84at1.hex
attiny84at1.bootloader.tool=arduino:avrdude

attiny84at1.build.mcu=attiny84
attiny84at1.build.f_cpu=1000000L
attiny84at1.build.core=tiny

Any help greatly appreciated! Thy
Original issue reported on code.google.com by christop...@gmail.com on 26 Feb 2015 at 8:37
smilez250hp / arduino-tiny

Arduino-tiny does not compile any sketch on recent Arduino IDE #127
