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| author | Mike Frysinger <vapier@gentoo.org> | 2013-10-30 13:20:52 +1000 |
|---|---|---|
| committer | Allan McRae <allan@archlinux.org> | 2013-10-30 17:32:08 +1000 |
| commit | cb8a6dbd176ee59d61068bed92e2c8d22bd28b13 (patch) | |
| tree | 9ead2c7bd7a279a0669afe49476dd1da4b3c8da9 /sysdeps/ieee754/ldbl-opt/configure.ac | |
| parent | 36a4953a1dbc2b1994c1df0478c1c89a41398dba (diff) | |
| download | glibc-cb8a6dbd176ee59d61068bed92e2c8d22bd28b13.tar glibc-cb8a6dbd176ee59d61068bed92e2c8d22bd28b13.tar.gz glibc-cb8a6dbd176ee59d61068bed92e2c8d22bd28b13.tar.bz2 glibc-cb8a6dbd176ee59d61068bed92e2c8d22bd28b13.zip | |
rename configure.in to configure.ac
Autoconf has been deprecating configure.in for quite a long time.
Rename all our configure.in and preconfigure.in files to .ac.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'sysdeps/ieee754/ldbl-opt/configure.ac')
| -rw-r--r-- | sysdeps/ieee754/ldbl-opt/configure.ac | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/sysdeps/ieee754/ldbl-opt/configure.ac b/sysdeps/ieee754/ldbl-opt/configure.ac new file mode 100644 index 0000000000..a77fadd1c4 --- /dev/null +++ b/sysdeps/ieee754/ldbl-opt/configure.ac @@ -0,0 +1,19 @@ +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 |