diff options
Diffstat (limited to 'trio/configure.in')
| -rw-r--r-- | trio/configure.in | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/trio/configure.in b/trio/configure.in new file mode 100644 index 00000000..6783959b --- /dev/null +++ b/trio/configure.in @@ -0,0 +1,45 @@ +dnl +dnl Configuration for trio +dnl + +AC_INIT(triodef.h) + +AC_PROG_CC +ifdef([AC_PROG_CC_STDC], [AC_PROG_CC_STDC]) +AC_LANG_C + +AC_PROG_INSTALL +AC_PROG_RANLIB + +dnl +dnl Alpha floating-point compiler option. +dnl + +AC_MSG_CHECKING(for IEEE compilation options) +AC_CACHE_VAL(ac_cv_ieee_option, [ +AC_TRY_COMPILE(,[ +#if !(defined(__alpha) && (defined(__DECC) || defined(__DECCXX) || (defined(__osf__) && defined(__LANGUAGE_C__))) && (defined(VMS) || defined(__VMS))) +# error "Option needed" +#endif +],ac_cv_ieee_option="/IEEE_MODE=UNDERFLOW_TO_ZERO/FLOAT=IEEE", +AC_TRY_COMPILE(,[ +#if !(defined(__alpha) && (defined(__DECC) || defined(__DECCXX) || (defined(__osf__) && defined(__LANGUAGE_C__))) && !(defined(VMS) || defined(__VMS)) && !defined(_CFE)) +# error "Option needed" +#endif +],ac_cv_ieee_option="-ieee", +AC_TRY_COMPILE(,[ +#if !(defined(__alpha) && (defined(__GNUC__) && (defined(__osf__) || defined(__linux__)))) +# error "Option needed" +#endif +],ac_cv_ieee_option="-mieee", +ac_cv_ieee_option="none" +) +) +) +]) +AC_MSG_RESULT($ac_cv_ieee_option) +if test $ac_cv_ieee_option != none; then + CFLAGS="${CFLAGS} ${ac_cv_ieee_option}" +fi + +AC_OUTPUT(Makefile) |