error compiling ruby-1.9.3-head with RVM 1.6.31

gistfile1.txt

[2011-07-27 09:33:10] make 
	CC = gcc
	LD = ld
	LDSHARED = gcc -dynamiclib
	CFLAGS = -isysroot /Developer/SDKs/MacOSX10.6.sdk -arch x86_64 -fno-common -pipe
	XCFLAGS = -include ruby/config.h -include ruby/missing.h -fvisibility=hidden -DRUBY_EXPORT
	CPPFLAGS = -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE   -I. -I.ext/include/x86_64-darwin10.8.0 -I./include -I.
	DLDFLAGS = -Wl,-undefined,dynamic_lookup -Wl,-multiply_defined,suppress -Wl,-flat_namespace -install_name /Users/jlecour/.rvm/rubies/ruby-1.9.3-head/lib/libruby.1.9.1.dylib -current_version 1.9.1 -compatibility_version 1.9.1 -Wl,-unexported_symbol,_Init_* -Wl,-unexported_symbol,*_threadptr_*  -Wl,-u,_objc_msgSend   
	SOLIBS = 
compiling main.c
compiling dmydln.c
compiling dmyencoding.c
compiling version.c
compiling dmyversion.c
generating miniprelude.c
bison -d  -o y.tab.c parse.y
sed -f ./tool/ytab.sed -e "/^#/s!y\.tab\.c!parse.c!" y.tab.c > parse.c.new
sed -e "/^#line.*y\.tab\.h/d;/^#line.*parse\.y/d" y.tab.h > parse.h.new
parse.h updated
generating id.h
id.h updated
compiling miniprelude.c
compiling array.c
compiling bignum.c
compiling class.c
compiling compar.c
compiling complex.c
compiling dir.c
compiling dln_find.c
compiling enum.c
compiling enumerator.c
generating known_errors.inc
known_errors.inc updated
compiling error.c
compiling eval.c
compiling load.c
compiling proc.c
compiling file.c
compiling gc.c
gc.c:41:32: error: valgrind/memcheck.h: No such file or directory
make: *** [gc.o] Error 1