diff options
Diffstat (limited to 'configure.in')
| -rw-r--r-- | configure.in | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/configure.in b/configure.in index f0511ac5f9..c415f37de7 100644 --- a/configure.in +++ b/configure.in @@ -1502,6 +1502,24 @@ EOF ;; esac +AC_CACHE_CHECK(whether CFI directives are supported, libc_cv_asm_cfi_directives, [dnl +cat > conftest.s <<EOF + .text + .type func,@function +func: + .cfi_startproc + .cfi_endproc +EOF +if AC_TRY_COMMAND(${CC-cc} $ASFLAGS -c conftest.s 1>&AS_MESSAGE_LOG_FD); then + libc_cv_asm_cfi_directives=yes +else + libc_cv_asm_cfi_directives=no +fi +rm -f conftest*]) +if test $libc_cv_asm_cfi_directives = yes; then + AC_DEFINE(HAVE_ASM_CFI_DIRECTIVES) +fi + AC_CACHE_CHECK(if -g produces usable source locations for assembler-with-cpp, libc_cv_cpp_asm_debuginfo, [dnl cat > conftest.S <<EOF |