I'm compiling Ruby 1.9.1-p376 under Ubuntu 8.04 server LTS (64-bit), by doing the following:

```
$ ./configure
$ make
$ sudo make install

```

`./configure` works without complaints.

`make` hangs indefinitely until all my RAM and swap is gone. It get stuck after the following output:

```
compiling ripper
make[1]: Entering directory `/tmp/ruby1.9.1/ruby-1.9.1-p376/ext/ripper'
gcc -I. -I../../.ext/include/x86_64-linux -I../.././include -I../.././ext/ripper -I../.. -I../../. -DRUBY_EXTCONF_H=\"extconf.h\"    -fPIC  -O2 -g -Wall -Wno-parentheses  -o ripper.o -c ripper.c

```

If I run the `gcc` command by hand, with the `-v` argument to get verbose output, it hangs after the following:

```
Using built-in specs.
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --enable-languages=c,c++,fortran,objc,obj-c++,treelang --prefix=/usr --enable-shared --with-system-zlib --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --enable-nls --with-gxx-include-dir=/usr/include/c++/4.2 --program-suffix=-4.2 --enable-clocale=gnu --enable-libstdcxx-debug --enable-objc-gc --enable-mpfr --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 4.2.4 (Ubuntu 4.2.4-1ubuntu4)
 /usr/lib/gcc/x86_64-linux-gnu/4.2.4/cc1 -quiet -v -I. -I../../.ext/include/x86_64-linux -I../.././include -I../.././ext/ripper -I../.. -I../../. -DRUBY_EXTCONF_H="extconf.h" ripper.c -quiet -dumpbase ripper.c -mtune=generic -auxbase-strip ripper.o -g -O2 -Wall -Wno-parentheses -version -fPIC -fstack-protector -fstack-protector -o /tmp/ccRzHvYH.s
ignoring nonexistent directory "/usr/local/include/x86_64-linux-gnu"
ignoring nonexistent directory "/usr/lib/gcc/x86_64-linux-gnu/4.2.4/../../../../x86_64-linux-gnu/include"
ignoring nonexistent directory "/usr/include/x86_64-linux-gnu"
ignoring duplicate directory "../.././ext/ripper"
ignoring duplicate directory "../../."
#include "..." search starts here:
#include <...> search starts here:
 .
 ../../.ext/include/x86_64-linux
 ../.././include
 ../..
 /usr/local/include
 /usr/lib/gcc/x86_64-linux-gnu/4.2.4/include
 /usr/include
End of search list.
GNU C version 4.2.4 (Ubuntu 4.2.4-1ubuntu4) (x86_64-linux-gnu)
    compiled by GNU C version 4.2.4 (Ubuntu 4.2.4-1ubuntu4).
GGC heuristics: --param ggc-min-expand=47 --param ggc-min-heapsize=32795
Compiler executable checksum: 6e11fa7ca85fc28646173a91f2be2ea3

```

I just compiled ruby on another computer for reference, and it took about 10 seconds to print the following output (after the above `Compiler executable checksum` line):

```
COLLECT_GCC_OPTIONS='-v' '-I.' '-I../../.ext/include/i686-linux' '-I../.././include' '-I../.././ext/ripper' '-I../..' '-I../../.' '-DRUBY_EXTCONF_H="extconf.h"' '-D_FILE_OFFSET_BITS=64' '-fPIC' '-O2' '-g' '-Wall' '-Wno-parentheses' '-o' 'ripper.o' '-c' '-mtune=generic' '-march=i486'
 as -V -Qy -o ripper.o /tmp/cca4fa7R.s
GNU assembler version 2.20 (i486-linux-gnu) using BFD version (GNU Binutils for Ubuntu) 2.20
COMPILER_PATH=/usr/lib/gcc/i486-linux-gnu/4.4.1/:/usr/lib/gcc/i486-linux-gnu/4.4.1/:/usr/lib/gcc/i486-linux-gnu/:/usr/lib/gcc/i486-linux-gnu/4.4.1/:/usr/lib/gcc/i486-linux-gnu/:/usr/lib/gcc/i486-linux-gnu/4.4.1/:/usr/lib/gcc/i486-linux-gnu/
LIBRARY_PATH=/usr/lib/gcc/i486-linux-gnu/4.4.1/:/usr/lib/gcc/i486-linux-gnu/4.4.1/:/usr/lib/gcc/i486-linux-gnu/4.4.1/../../../../lib/:/lib/../lib/:/usr/lib/../lib/:/usr/lib/gcc/i486-linux-gnu/4.4.1/../../../:/lib/:/usr/lib/
COLLECT_GCC_OPTIONS='-v' '-I.' '-I../../.ext/include/i686-linux' '-I../.././include' '-I../.././ext/ripper' '-I../..' '-I../../.' '-DRUBY_EXTCONF_H="extconf.h"' '-D_FILE_OFFSET_BITS=64' '-fPIC' '-O2' '-g' '-Wall' '-Wno-parentheses' '-o' 'ripper.o' '-c' '-mtune=generic' '-march=i486'

```

I have **absolutely** no clue what could be going wrong here - any ideas where I should start?

**Edit: fsck output**

```
$ sudo fsck -n
fsck 1.40.8 (13-Mar-2008)
e2fsck 1.40.8 (13-Mar-2008)
Warning!  /dev/sda1 is mounted.
Warning: skipping journal recovery because doing a read-only filesystem check.
/dev/sda1 contains a file system with errors, check forced.
Pass 1: Checking inodes, blocks, and sizes
Deleted inode 557058 has zero dtime.  Fix? no

Inodes that were part of a corrupted orphan linked list found.  Fix? no

Inode 557059 was part of the orphaned inode list.  IGNORED.
Inode 557060 was part of the orphaned inode list.  IGNORED.
Inode 557061 was part of the orphaned inode list.  IGNORED.
Inode 557062 was part of the orphaned inode list.  IGNORED.
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
Free blocks count wrong (2026992, counted=2014241).
Fix? no

Inode bitmap differences:  -(557058--557062)
Fix? no

Free inodes count wrong (1130174, counted=1129768).
Fix? no

/dev/sda1: ********** WARNING: Filesystem still has errors **********

/dev/sda1: 115010/1245184 files (0.7% non-contiguous), 463376/2490368 blocks

```