I'm missing the source code lines within the assembler listing. The gcc call is from my Makefile. The 'rtc8583.lst' does not contain any source code lines.
avr-gcc -c -mmcu=atmega8535 -I. -g -Os -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums -Wall -Wstrict-prototypes -Wa,-adhlns=rtc8583.lst -std=gnu99 rtc8583.c -o rtc8583.o
Why doesn't the option -Wa,adhlns work how I expect ?