From: "HOLOWKO,LARS (A-Germany,ex1)" <lars_holowko@...>
Date: 2001-01-16T17:57:42+09:00
Subject: [ruby-talk:9368] Ruby 1.6.2 compilation problems on HP-UX 11 with gcc 2.95.2 with 	optimizations

Trying to build Ruby like this

./configure --prefix=/opt/gnu
make

results in:


[...]
gcc -I. -O -I. -I. -I/opt/gnu/include -c ./missing/flock.c
gcc -I. -O -I. -I. -I/opt/gnu/include -c ./missing/isinf.c
gcc -I. -O -I. -I. -I/opt/gnu/include -c ./missing/finite.c
gcc -O -I. -I. -I/opt/gnu/include -c dmyext.c
ar rcu libruby.a array.o bignum.o class.o compar.o dir.o dln.o enum.o
error.o eval.o file.o gc.o hash.o inits.o io.o marshal.o math.o numeric.o
object.o pack.o parse.o process.o prec.o random.o range.o re.o regex.o
ruby.o signal.o sprintf.o st.o string.o struct.o time.o util.o variable.o
version.o flock.o isinf.o finite.o  dmyext.o
gcc -O -I. -I. -I/opt/gnu/include -c main.c
gcc -O -Wl,-E main.o dmyext.o libruby.a -ldld -lcrypt -lm   -o miniruby
make: *** [rbconfig.rb] Segmentation fault (core dumped)

Compiling with -O2 -g doesn't help either.

The only thing I can do to build ruby is to omit any optimization flags
which isn't recommended in a production environment. So it looks like a gcc
bug. 

When I selectively compile the c-files with optimization, I sometimes get a
different result:
*.c with -O2
eval.c, gc.c and [m-q]*.c [s-z]*.c without opt
results in a working executable.

But when I compile e.g. eval.c with -O2 I get this error message during
linkage:
gcc -O -Wl,-E main.o dmyext.o libruby.a -ldld -lcrypt -lm   -o miniruby
./mkconfig.rb:48: stack level too deep (SystemStackError)
        from ./mkconfig.rb:29:in `foreach'
        from ./mkconfig.rb:29
make: *** [rbconfig.h] Error 1


Any idea or did someone have more success on HP-UX 11 with gcc or may
someone out there provide a optimized binary of ruby compiled with the a
comercial compiler, to which I don't have access to?


Regards,

Lars