Bu şekilde mi hocam?
PLATFORM = $(shell file /bin/ls | cut -d' ' -f3 | cut -d'-' -f1)
GCC_VERSION = $(shell $(CC) --version 2>&1 | grep "(GCC)" | cut -d' ' -f3 | cut -d'.' -f1)
BSD_VERSION = $(shell uname -v 2>&1 | cut -d' ' -f2 | cut -d'.' -f1)
SVN_VERSION = 40000
CC = g++9
INCDIR =
LIBDIR...