From 5620149cd6f85c8cd12bfd0a6b858f06ac720b54 Mon Sep 17 00:00:00 2001 From: Joel Sherrill Date: Wed, 30 Sep 1998 19:51:31 +0000 Subject: New configure test from Ian Lance Taylor : If the target is an i386, this test checks whether or not the binutils is new enough to have good support for code16. --- aclocal/i386-gas-code16.m4 | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 aclocal/i386-gas-code16.m4 diff --git a/aclocal/i386-gas-code16.m4 b/aclocal/i386-gas-code16.m4 new file mode 100644 index 0000000000..a55fb77954 --- /dev/null +++ b/aclocal/i386-gas-code16.m4 @@ -0,0 +1,25 @@ +dnl +dnl $Id$ +dnl + +dnl check for i386 gas supporting 16 bit mode + +AC_DEFUN(RTEMS_I386_GAS_CODE16, + if test "${target_cpu}" = "i386"; then + AC_CACHE_CHECK([for 16 bit mode assembler support], + rtems_cv_prog_gas_code16, + [cat > conftest.s << EOF + .code16 + data32 addr32 lgdt 0 +EOF + if AC_TRY_COMMAND($AS_FOR_TARGET -o conftest.o conftest.s); then + rtems_cv_prog_gas_code16=yes + else + rtems_cv_prog_gas_code16=no + fi]) + if test "$rtems_cv_prog_gas_code16" = "yes"; then + AC_DEFINE(RTEMS_PROG_GAS_CODE16) + fi + fi +) + -- cgit v1.2.3