diff options
Diffstat (limited to 'newlib/configure.in')
| -rw-r--r-- | newlib/configure.in | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/newlib/configure.in b/newlib/configure.in index d260815c1..908734413 100644 --- a/newlib/configure.in +++ b/newlib/configure.in @@ -526,6 +526,25 @@ if test $libc_cv_initfinit_array = yes; then AC_DEFINE_UNQUOTED(HAVE_INITFINI_ARRAY) fi +AC_CACHE_CHECK(if $CC accepts -fno-tree-loop-distribute-patterns with \ +__attribute__ ((__optimize__)), libc_cv_cc_loop_to_function, [dnl +cat > conftest.c <<EOF +void +__attribute__ ((__optimize__ ("-fno-tree-loop-distribute-patterns"))) +foo (void) {} +EOF +libc_cv_cc_loop_to_function=no +if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS -c + -fno-tree-loop-distribute-patterns conftest.c]) +then + libc_cv_cc_loop_to_function=yes +fi +rm -f conftest*]) +if test $libc_cv_cc_loop_to_function = yes; then + AC_DEFINE(_HAVE_CC_INHIBIT_LOOP_TO_LIBCALL) +fi +AC_SUBST(libc_cv_cc_loop_to_function) + dnl Autoconf 2.59 doesn't support the AC_TYPE_LONG_DOUBLE macro. Instead of: dnl AC_TYPE_LONG_DOUBLE dnl AM_CONDITIONAL(HAVE_LONG_DOUBLE, test x"$ac_cv_type_long_double" = x"yes") |