Fix large file support. fixes #1

Tested in Ubuntu 13.10 on x86_64, Arch on i686, and Mac OS X 10.9 on x86_64.

NOTE: Though this should work in most cases, it doesn't appear to be the POSIX/SUS-compliant way. We should probably just use autotools or cmake.

Makefile

@@ -1,18 +1,21 @@
 # Makefile for symlinks
-CC=gcc
-OWNER=root
-GROUP=root
-MANDIR=/usr/man/man8/symlinks.8
-BINDIR=/usr/local/bin
- 
+CC     := gcc
+CFLAGS += $(shell getconf LFS_CFLAGS 2>/dev/null)
+OWNER   = root
+GROUP   = root
+MANDIR  = /usr/man/man8/symlinks.8
+BINDIR  = /usr/local/bin
+
+.PHONY: all
 all: symlinks
 
 symlinks: symlinks.c
 	$(CC) -Wall -Wstrict-prototypes -O2 $(CFLAGS) -o symlinks symlinks.c
- 
+
 install: all symlinks.8
 	$(INSTALL) -c -o $(OWNER) -g $(GROUP) -m 755 symlinks $(BINDIR)
 	$(INSTALL) -c -o $(OWNER) -g $(GROUP) -m 644 symlinks.8 $(MANDIR)
 
+.PHONY: clean
 clean:
 	rm -f symlinks *.o core