diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 35 |
1 files changed, 0 insertions, 35 deletions
diff --git a/configure.ac b/configure.ac index 86e033ceb..b2d65b3ad 100644 --- a/configure.ac +++ b/configure.ac @@ -412,41 +412,6 @@ AM_PROG_AR dnl This must done before MPFR_CONFIGS. LT_INIT(win32-dll) -dnl Try to determine the double format -AC_MSG_CHECKING(format of floating-point type `double') -AC_RUN_IFELSE([AC_LANG_PROGRAM([[ -]], [[ -union ieee_double_extract -{ - double d; - unsigned char x[8]; -} t; -t.d = 2.877939254133025759330166692961938679218292236328125; /* exact */ -if (sizeof (double) != 8) - return 0; -if (sizeof (unsigned char) != 1) - return 0; -if (t.x[0] == 1 && t.x[1] == 2 && t.x[2] == 3 && t.x[3] == 4 && - t.x[4] == 5 && t.x[5] == 6 && t.x[6] == 7 && t.x[7] == 64) - return 1; /* little endian */ -else if (t.x[7] == 1 && t.x[6] == 2 && t.x[5] == 3 && t.x[4] == 4 && - t.x[3] == 5 && t.x[2] == 6 && t.x[1] == 7 && t.x[0] == 64) - return 2; /* big endian */ -else - return 0; /* unknown */ -]])], - [mpfr_ieee_double=$?], - [mpfr_ieee_double=$?], - [mpfr_ieee_double=0]) -case "$mpfr_ieee_double" in - 1) AC_MSG_RESULT([IEEE little endian]) - AC_DEFINE(HAVE_DOUBLE_IEEE_LITTLE_ENDIAN) ;; - 2) AC_MSG_RESULT([IEEE big endian]) - AC_DEFINE(HAVE_DOUBLE_IEEE_BIG_ENDIAN) ;; - *) AC_MSG_RESULT([unknown]) - AC_MSG_WARN([format of `double' not recognized]) ;; -esac - dnl Warning: This test is *only* for CFLAGS settings. dnl If the compiler is ICC, add some specific flags, except on MS-Windows. dnl Don't add warnings flags (Otherwise you'll get more than 20000 warnings). |