| sinclude(./aclocal.m4)dnl Autoconf lossage |
| GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory. |
| # Local configure fragment for sysdeps/ieee754/ldbl-opt/. |
| |
| AC_CACHE_CHECK(whether $CC $CFLAGS supports -mlong-double-128, |
| libc_cv_mlong_double_128, [dnl |
| save_CFLAGS="$CFLAGS" |
| CFLAGS="$CFLAGS -mlong-double-128" |
| AC_TRY_COMPILE(, [ |
| #ifndef __LONG_DOUBLE_128__ |
| # error "compiler did not predefine __LONG_DOUBLE_128__ as expected" |
| #endif |
| long double foobar (long double x) { return x; }], |
| libc_cv_mlong_double_128=yes, |
| libc_cv_mlong_double_128=no) |
| CFLAGS="$save_CFLAGS"]) |
| if test "$libc_cv_mlong_double_128" = no; then |
| AC_MSG_ERROR([this configuration requires -mlong-double-128 support]) |
| fi |
