test failure when building gnutls-2.12.14 for ARM

[David A. Marlin]

When building gnutls-2.12.14 on Fedora rawhide for ARM.

Using versions:
  gcc-4.7.0
  glibc-2.15
  guile-1.8.8

three tests fail during 'make check':
-------------------------------------
Making check in tests
make[2]: Entering directory 
`/builddir/build/BUILD/gnutls-2.12.14/guile/tests'
make  check-TESTS
make[3]: Entering directory 
`/builddir/build/BUILD/gnutls-2.12.14/guile/tests'
PASS: anonymous-auth.scm
/bin/sh: line 5: 11417 Segmentation fault      GUILE_AUTO_COMPILE=0 
../../guile/pre-inst-guile -L . ${dir}$tst
FAIL: session-record-port.scm
PASS: pkcs-import-export.scm
PASS: errors.scm
PASS: x509-certificates.scm
/bin/sh: line 5: 11463 Segmentation fault      GUILE_AUTO_COMPILE=0 
../../guile/pre-inst-guile -L . ${dir}$tst
FAIL: x509-auth.scm
PASS: openpgp-keys.scm
PASS: openpgp-keyring.scm
/bin/sh: line 5: 11499 Segmentation fault      GUILE_AUTO_COMPILE=0 
../../guile/pre-inst-guile -L . ${dir}$tst
FAIL: openpgp-auth.scm
===================================
3 of 9 tests failed
Please report to bug-gnutls at gnu.org
===================================
-------------------------------------


This appears to be caused by a difference in the size of off_t in the 
following structure:

/usr/include/libguile/ports.h
-------------------------------------

typedef struct
{
  SCM port;
  long int entry;
  int revealed;
  scm_t_bits stream;
  SCM file_name;
  long int line_number;
  int column_number;
  unsigned char *read_buf;
  const unsigned char *read_pos;
  unsigned char *read_end;
  off_t read_buf_size;
  unsigned char *saved_read_buf;
  const unsigned char *saved_read_pos;
  unsigned char *saved_read_end;
  off_t saved_read_buf_size;
  unsigned char *write_buf;
  unsigned char *write_pos;
  unsigned char *write_end;
  off_t write_buf_size;
  unsigned char shortbuf;
  int rw_random;
  scm_t_port_rw_active rw_active;
  unsigned char *putback_buf;
  size_t putback_buf_size;
} scm_t_port;
-------------------------------------

In gnutls off_t is 'long long int', but in guile off_t is 'long int'.
This is because gnutls has:

  #define _FILE_OFFSET_BITS 64

and guile has no such definition.

By building guile with -D_FILE_OFFSET_BITS=64, the gnutls test completed 
successfully.  Conversely, using the original guile build and rebuilding 
gnutls with '--disable-largefile' in the configure command also allows 
the gnutls test completed successfully.

Please let me know the correct solution to this issue, of if you need 
any additional information.


Thank you,

d.marlin