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path: root/sysdeps/powerpc/powerpc64/configure.ac
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GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
# Local configure fragment for sysdeps/powerpc/powerpc64.

AC_CACHE_CHECK(for linker support for overlapping .opd entries,
libc_cv_overlapping_opd, [dnl
libc_cv_overlapping_opd=no
echo 'void foo (void) {}' > conftest.c
if AC_TRY_COMMAND(${CC-cc} $CFLAGS $CPPFLAGS -S conftest.c -o conftest.s 1>&AS_MESSAGE_LOG_FD); then
changequote(,)dnl
  if grep '\.TOC\.@tocbase' conftest.s > /dev/null; then
    if grep '\.TOC\.@tocbase[ 	]*,[ 	]*0' conftest.s > /dev/null; then
      :
    else
      libc_cv_overlapping_opd=yes
    fi
  fi
changequote([,])dnl
fi
rm -f conftest.c conftest.s
])
if test x$libc_cv_overlapping_opd = xyes; then
  AC_DEFINE(USE_PPC64_OVERLAPPING_OPD)
fi