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Diffstat (limited to 'sysdeps/ieee754/ldbl-opt/configure.in')
| -rw-r--r-- | sysdeps/ieee754/ldbl-opt/configure.in | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/sysdeps/ieee754/ldbl-opt/configure.in b/sysdeps/ieee754/ldbl-opt/configure.in new file mode 100644 index 0000000000..bc9d29908f --- /dev/null +++ b/sysdeps/ieee754/ldbl-opt/configure.in @@ -0,0 +1,15 @@ +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 +if $CC $CFLAGS -mlong-double-128 -S -xc /dev/null -o /dev/null 2>&1 +then + libc_cv_mlong_double_128=yes +else + libc_cv_mlong_double_128=no +fi]) +if test "$libc_cv_mlong_double_128" = no; then + AC_MSG_ERROR([this configuration requires -mlong-double-128 support]) +fi |