addr2line.c does not compile on FreeBSD 8
addr2line.c: In function 'fill_lines':
addr2line.c:462: error: 'SIZE_MAX' undeclared (first use in this function)
addr2line.c:462: error: (Each undeclared identifier is reported only once
addr2line.c:462: error: for each function it appears in.)
On FreeBSD 8, ((|SIZE_MAX|)) is in sys/_stdint.h which is included from sys/stdint.h, but not any of the includes listed. Since ruby/ruby.h also provides ((|SIZE_MAX|)) I tried including it which fixes the problem.
I believe this was introduced with r36755
Please see the attached patch.