[ruby-core:30239] [Bug #3293] fails to build with gcc 4.4.3

Bug #3293: fails to build with gcc 4.4.3
http://redmine.ruby-lang.org/issues/show/3293

Author: Lucas Nussbaum
Status: Open, Priority: Normal
ruby -v: 1.9.1p378

Hi,

Ruby 1.9.1 fails to build with GCC 4.4.3:
./miniruby -I./lib -I.ext/common -I./- -r./ext/purelib.rb  ./enc/make_encmake.rb --builtin-encs="ascii.o us_ascii.o unicode.o utf_8.o" --builtin-transes="newline.o" enc.mk 
gcc -fno-strict-aliasing -g -g -O2 -O2 -g -Wall -Wno-parentheses  -fPIC  -I. -I.ext/include/i486-linux -I./include -I.  -DRUBY_EXPORT   -o encoding.o -c encoding.c
./miniruby -I./lib -I.ext/common -I./- -r./ext/purelib.rb  -I. -rrbconfig ./tool/compile_prelude.rb ./prelude.rb ./enc/prelude.rb ./gem_prelude.rb prelude.c
gcc -fno-strict-aliasing -g -g -O2 -O2 -g -Wall -Wno-parentheses  -fPIC  -I. -I.ext/include/i486-linux -I./include -I.  -DRUBY_EXPORT   -o prelude.o -c prelude.c
ar rcu libruby-1.9.1-static.a dln.o encoding.o array.o bignum.o class.o compar.o complex.o dir.o enum.o enumerator.o error.o eval.o load.o proc.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 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 sprintf.o st.o strftime.o string.o struct.o time.o transcode.o util.o variable.o version.o compile.o debug.o iseq.o vm.o vm_dump.o thread.o cont.o ascii.o us_ascii.o unicode.o utf_8.o newline.o strlcpy.o strlcat.o  prelude.o dmyext.o
gcc -shared -Wl,-soname,libruby-1.9.1.so.1.9   dln.o encoding.o array.o bignum.o class.o compar.o complex.o dir.o enum.o enumerator.o error.o eval.o load.o proc.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 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 sprintf.o st.o strftime.o string.o struct.o time.o transcode.o util.o variable.o version.o compile.o debug.o iseq.o vm.o vm_dump.o thread.o cont.o ascii.o us_ascii.o unicode.o utf_8.o newline.o strlcpy.o strlcat.o  prelude.o dmyext.o -lpthread -lrt -ldl -lcrypt -lm   -o libruby-1.9.1.so.1.9.1
objcopy -w -L 'Init_*' libruby-1.9.1.so.1.9.1
./miniruby -I./lib -I.ext/common -I./- -r./ext/purelib.rb  ./tool/generic_erb.rb -c -o encdb.h ./template/encdb.h.tmpl ./enc enc
<main>: unexpected throw
make[1]: *** [encdb.h] Error 1

This can be reproduced on Debian unstable or Ubuntu lucid.

Example log:
https://buildd.debian.org/fetch.cgi?pkg=ruby1.9.1&arch=i386&ver=1.9.1.378-3&stamp=1273378507&file=log&as=raw

With GCC 4.5, it also fails, but differently: https://launchpad.net/ubuntu/+source/ruby1.9.1/1.9.1.378-3/+build/1730898

This is tracked in Debian at http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=580852


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