| Message ID | 1365105210-16552-2-git-send-email-rep.dot.nop@gmail.com |
|---|---|
| State | New |
| Headers | show |
On Thu, Apr 4, 2013 at 12:53 PM, Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> wrote: > > 2013-03-24 Bernhard Reutner-Fischer <aldot@gcc.gnu.org> > > * configure.ac (libgcc_cv_dfp): Extend check to probe fenv.h > availability. > * configure: Regenerate This is OK. Thanks. Ian
On 4 April 2013 23:01, Ian Lance Taylor <iant@google.com> wrote: > On Thu, Apr 4, 2013 at 12:53 PM, Bernhard Reutner-Fischer > <rep.dot.nop@gmail.com> wrote: >> >> 2013-03-24 Bernhard Reutner-Fischer <aldot@gcc.gnu.org> >> >> * configure.ac (libgcc_cv_dfp): Extend check to probe fenv.h >> availability. >> * configure: Regenerate > > This is OK. Applied just now as r204562. thanks,
diff --git a/libgcc/configure b/libgcc/configure index 1425df6..90936e8 100644 --- a/libgcc/configure +++ b/libgcc/configure @@ -4048,7 +4048,20 @@ if test "${libgcc_cv_dfp+set}" = set; then : else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ + +#include <fenv.h> + +int +main () +{ + _Decimal32 x; +int fe_except = + FE_INVALID|FE_DIVBYZERO|FE_OVERFLOW|FE_UNDERFLOW|FE_INEXACT; + + ; + return 0; +} _ACEOF if ac_fn_c_try_compile "$LINENO"; then : libgcc_cv_dfp=yes diff --git a/libgcc/configure.ac b/libgcc/configure.ac index 8b7aba5..e3d713d 100644 --- a/libgcc/configure.ac +++ b/libgcc/configure.ac @@ -172,7 +172,14 @@ AC_SUBST(long_double_type_size) # Check for decimal float support. AC_CACHE_CHECK([whether decimal floating point is supported], [libgcc_cv_dfp], - [AC_COMPILE_IFELSE([_Decimal32 x;], [libgcc_cv_dfp=yes], + [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ +#include <fenv.h> +]], [[ +_Decimal32 x; +int fe_except = + FE_INVALID|FE_DIVBYZERO|FE_OVERFLOW|FE_UNDERFLOW|FE_INEXACT; +]])], + [libgcc_cv_dfp=yes], [libgcc_cv_dfp=no])]) decimal_float=$libgcc_cv_dfp AC_SUBST(decimal_float)
uClibc can be built without fenv support, extend the configure check for decimal floating point to probe the existance of fenv.h, too. libgcc/ChangeLog: 2013-03-24 Bernhard Reutner-Fischer <aldot@gcc.gnu.org> * configure.ac (libgcc_cv_dfp): Extend check to probe fenv.h availability. * configure: Regenerate Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> --- libgcc/configure | 13 +++++++++++++ libgcc/configure.ac | 9 ++++++++- 2 files changed, 21 insertions(+), 1 deletion(-)