avr-gcc -g -Wall -O2 -mmcu=attiny85  -I /usr/avr/include  -Wl,-Map,test.map  -o test.elf main.c -lm
In file included from /usr/avr/include/avr/io.h:99:0,
                 from main.c:3:
main.c:50:20: error: expected identifier or ‘(’ before ‘volatile’
 #define UARTTXPORT PORTB
                    ^
main.c:92:2: note: in expansion of macro ‘UARTTXPORT’
  UARTTXPORT |= (1 << UARTTXBIT);
  ^~~~~~~~~~
main.c:50:20: error: expected ‘)’ before ‘(’ token
 #define UARTTXPORT PORTB
                    ^
main.c:92:2: note: in expansion of macro ‘UARTTXPORT’
  UARTTXPORT |= (1 << UARTTXBIT);
  ^~~~~~~~~~
main.c:93:2: warning: data definition has no type or storage class
  usart_bitdelay();
  ^~~~~~~~~~~~~~
main.c:93:2: warning: type defaults to ‘int’ in declaration of ‘usart_bitdelay’ [-Wimplicit-int]
main.c:93:2: error: conflicting types for ‘usart_bitdelay’
main.c:65:6: note: previous definition of ‘usart_bitdelay’ was here
 void usart_bitdelay() {
      ^~~~~~~~~~~~~~
main.c:94:1: error: expected identifier or ‘(’ before ‘}’ token
 }
 ^
In file included from main.c:4:0:
main.c:96:42: warning: initialization from incompatible pointer type [-Wincompatible-pointer-types]
 static FILE mystdout = FDEV_SETUP_STREAM(usart_putchar, NULL, _FDEV_SETUP_WRITE);
                                          ^
main.c:96:42: note: (near initialization for ‘mystdout.put’)
main.c: In function ‘getTemp’:
main.c:101:2: warning: implicit declaration of function ‘nop’ [-Wimplicit-function-declaration]
  nop();
  ^~~
At top level:
main.c:96:13: warning: ‘mystdout’ defined but not used [-Wunused-variable]
 static FILE mystdout = FDEV_SETUP_STREAM(usart_putchar, NULL, _FDEV_SETUP_WRITE);
             ^~~~~~~~
make: *** [Makefile:34: test.elf] Error 1