hi all - i was able to build my own 1.9.1 with no problems (except it does not support rails) $ ruby -v ; ruby 1.9.1p429 (2010-07-02 revision 28523) [i686-linux] but i tried to build 1.9.2 and during make, i got the error: *** glibc detected *** malloc(): memory corruption: 0x09c3f2b8 *** make: *** [.rbconfig.time] Aborted (more detail below) suggestions? thanks! $ uname -a ; Linux edwardsmark.com 2.6.9-89.35.1.ELsmp #1 SMP Tue Jan 4 22:30:58 EST 2011 i686 i686 i386 GNU/Linux $ ldd --version ldd (GNU libc) 2.3.4 $ rails -v ; Rails 3 doesn't officially support Ruby 1.9.1 since recent stable releases have segfaulted the test suite. Please upgrade to Ruby 1.9.2. You're running ruby 1.9.1p429 (2010-07-02 revision 28523) [i686-linux] Rails 3.1.0 ==error: $ make ; blah blah blah gcc -O3 -ggdb -Wall -Wno-unused-parameter -Wno-parentheses -Wpointer-arith -Wwrite-strings -Wno-long-long -I. -I.ext/include/i686-linux -I./include -I. -DRUBY_EXPORT -o strlcat.o -c ./missing/strlcat.c gcc -O3 -ggdb -Wall -Wno-unused-parameter -Wno-parentheses -Wpointer-arith -Wwrite-strings -Wno-long-long -I. -I.ext/include/i686-linux -I./include -I. -DRUBY_EXPORT -o dmyext.o -c dmyext.c gcc -O3 -ggdb -Wall -Wno-unused-parameter -Wno-parentheses -Wpointer-arith -Wwrite-strings -Wno-long-long -L. -rdynamic -Wl,-export-dynamic main.o dmydln.o dmyencoding.o dmyversion.o miniprelude.o array.o bign um.o class.o compar.o complex.o dir.o dln_find.o enum.o enumerator.o error.o eval.o load.o proc.o file.o g c.o hash.o inits.o io.o marshal.o math.o node.o numeric.o object.o pack.o parse.o process.o random.o range .o rational.o re.o regcomp.o regenc.o regerror.o regexec.o regparse.o regsyntax.o ruby.o safe.o signal.o s printf.o st.o strftime.o string.o struct.o time.o transcode.o util.o variable.o compile.o debug.o iseq.o v m.o vm_dump.o thread.o cont.o ascii.o us_ascii.o unicode.o utf_8.o newline.o strlcpy.o strlcat.o dmyext.o -lpthread -lrt -ldl -lcrypt -lm -o miniruby *** glibc detected *** malloc(): memory corruption: 0x09c3f2b8 *** make: *** [.rbconfig.time] Aborted -- Posted via http://www.ruby-forum.com/.