diff options
Diffstat (limited to 'libbacktrace/configure')
| -rwxr-xr-x | libbacktrace/configure | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/libbacktrace/configure b/libbacktrace/configure index e6b13c0..d6bda6e 100755 --- a/libbacktrace/configure +++ b/libbacktrace/configure @@ -11748,6 +11748,44 @@ $as_echo "#define HAVE_SYNC_FUNCTIONS 1" >>confdefs.h fi +# Test for __atomic support. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking __atomic extensions" >&5 +$as_echo_n "checking __atomic extensions... " >&6; } +if test "${libbacktrace_cv_sys_atomic+set}" = set; then : + $as_echo_n "(cached) " >&6 +else + if test -n "${with_target_subdir}"; then + libbacktrace_cv_sys_atomic=yes + else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +int i; +int +main () +{ +__atomic_load_n (&i, __ATOMIC_ACQUIRE); + __atomic_store_n (&i, 1, __ATOMIC_RELEASE); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + libbacktrace_cv_sys_atomic=yes +else + libbacktrace_cv_sys_atomic=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libbacktrace_cv_sys_atomic" >&5 +$as_echo "$libbacktrace_cv_sys_atomic" >&6; } +if test "$libbacktrace_cv_sys_atomic" = "yes"; then + +$as_echo "#define HAVE_ATOMIC_FUNCTIONS 1" >>confdefs.h + +fi + # The library needs to be able to read the executable itself. Compile # a file to determine the executable format. The awk script # filetype.awk prints out the file type. |