When configuring GCC with
--target=TARGET
to build a cross compiler to reproduce a compiler bug, as and collect have
ORIGINAL_AS_FOR_TARGET=""
As the result, many target features are disabled which makes it almost
impossible to reproduce the bug. Without assembler, the GCC build won't
finish and the run-time libraries won't build. But the GCC itself can
be built. It is very useful for debugging GCC with a cross compiler.
Enable GNU assembler features for --with-gnu-as if assembler isn't
available.
PR target/113684
* acinclude.m4 (gcc_GAS_CHECK_FEATURE): Assuming the working GNU
assembler for --with-gnu-as if assembler isn't available.
* configure: Regenerated.
---
gcc/acinclude.m4 | 3 +
gcc/configure | 492 +++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 495 insertions(+)
diff --git a/gcc/acinclude.m4 b/gcc/acinclude.m4
index 425146719cf..3c959748f97 100644
--- a/gcc/acinclude.m4
+++ b/gcc/acinclude.m4
@@ -493,6 +493,9 @@ AC_CACHE_CHECK([assembler for $1], [$2],
cat conftest.s >&AS_MESSAGE_LOG_FD
fi
rm -f conftest.o conftest.s
+ elif test x$gcc_cv_as = x -a x$gas_flag = xyes ; then
+ AC_MSG_WARN([Assume the working GNU assembler])
+ [$2]=yes
fi])
ifelse([$6],,,[dnl
if test $[$2] = yes; then
