rvm error make.log

rvm error make.log

[2013-02-19 09:25:50] make
	CC = clang
	LD = ld
	LDSHARED = clang -dynamic -bundle
	CFLAGS = -O3 -ggdb -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Werror=pointer-arith -Werror=write-strings -Werror=declaration-after-statement -Werror=shorten-64-to-32 -Werror=implicit-function-declaration  -pipe 
	XCFLAGS = -include ruby/config.h -include ruby/missing.h -fvisibility=hidden -DRUBY_EXPORT
	CPPFLAGS = -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE   -I/Users/maraaverick/.rvm/usr/include -I. -I.ext/include/x86_64-darwin12.2.0 -I./include -I.
	DLDFLAGS = -Wl,-undefined,dynamic_lookup -Wl,-multiply_defined,suppress -Wl,-flat_namespace  
	SOLIBS = 
compiling regparse.c
regparse.c:582:15: error: implicit conversion loses integer precision: 'st_index_t' (aka 'unsigned long') to 'int' [-Werror,-Wshorten-64-to-32]
    return t->num_entries;
    ~~~~~~ ~~~^~~~~~~~~~~
1 error generated.
make: *** [regparse.o] Error 1