os := $(shell uname)

libboxr : boxr.c
# MacOSX
ifeq ($(os),Darwin)
    gcc -fno-common -c boxr.c
    gcc -dynamiclib -install_name /opt/local/lib/libboxr.1.dylib \
    -compatibility_version 1.0 -current_version 1.0.0 \
    -o libboxr.1.0.0.dylib boxr.o
#Linux                       
else
    gcc -shared -fPIC -g -Wall -Wl,-soname,libboxr.so.1 \
    -o libboxr.so.1.0.0 -lc boxr.c
endif