obstack fails to compile on OS X 10.7

Some of the errors look like things I could track down, but some just confuse me.  If anyone else could take a look into this, it would be much appreciated.

~~ Brian G.

gcc -o compat/obstack.o -c -MF compat/.depend/obstack.o.d -MMD -MP -Wall -Wdeclaration-after-statement -Werror -Wno-deprecated-declarations -I. -DUSE_ST_TIMESPEC -DSHA1_HEADER='"block-sha1/sha1.h"' -DNO_MEMMEM compat/obstack.c In file included from compat/obstack.c:30: compat/obstack.h:190: error: __block attribute can be specified on variables only compat/obstack.c:70: error: expected specifier-qualifier-list before ‘uintmax_t’ compat/obstack.c:111:24: error: exitfail.h: No such file or directory cc1: warnings being treated as errors compat/obstack.c: In function ‘print_and_abort’: compat/obstack.c:436: warning: implicit declaration of function ‘gettext’ compat/obstack.c:436: warning: incompatible implicit declaration of built-in function ‘gettext’ compat/obstack.c:438: error: ‘exit_failure’ undeclared (first use in this function) compat/obstack.c:438: error: (Each undeclared identifier is reported only once compat/obstack.c:438: error: for each function it appears in.) compat/obstack.c:439: warning: ‘noreturn’ function does return make: *** [compat/obstack.o] Error 1

$ gcc --version i686-apple-darwin11-llvm-gcc-4.2 (GCC) 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2335.15.00)