http://code.google.com/p/google-glog/issues/detail?id=42
git-svn-id: https://google-glog.googlecode.com/svn/trunk@84
eb4d4688-79bd-11dd-afb4-
1d65580434c0
cat >>confdefs.h <<_ACEOF
#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
_ACEOF
-
+ ac_cv_have_libunwind_h=1
+else
+ ac_cv_have_libunwind_h=0
fi
done
# For backtrace with glibc.
AC_CHECK_HEADERS(execinfo.h)
# For backtrace with libunwind.
-AC_CHECK_HEADERS(libunwind.h)
+AC_CHECK_HEADERS(libunwind.h, ac_cv_have_libunwind_h=1, ac_cv_have_libunwind_h=0)
AC_CHECK_HEADERS(ucontext.h)
AC_CHECK_HEADERS(sys/utsname.h)
AC_CHECK_HEADERS(pwd.h)