[use_follytestmain=${enableval}], [use_follytestmain=yes])
# libdwarf used to install in /usr/include, now installs in /usr/include/libdwarf.
-AC_CHECK_HEADERS([libdwarf/dwarf.h dwarf.h], [break])
-# Check whether we have both the library and the header
have_libdwarf=no
-AS_IF([test "x${ac_cv_header_libdwarf_dwarf_h}" = xyes], [have_libdwarf=yes])
-AS_IF([test "x${ac_cv_header_dwarf_h}" = xyes], [have_libdwarf=yes])
-
+AC_CHECK_HEADERS([libdwarf/dwarf.h dwarf.h], [have_libdwarf=yes])
AC_ARG_ENABLE([mobile],
AS_HELP_STRING([--enable-mobile],
AS_HELP_STRING([--enable-exception-tracer], [enables building exception tracer]),
[build_exception_tracer=${enableval}], [build_exception_tracer=no])
+AC_ARG_ENABLE([symbolizer],
+ AS_HELP_STRING([--enable-symbolizer], [try to build symbolizer if possible]),
+ [folly_try_use_symbolizer=${enableval}], [folly_try_use_symbolizer=yes])
+
+folly_use_symbolizer=no
+if test "$folly_try_use_symbolizer" = yes; then
+ if test "$build_os" = "linux-gnu" && test "$have_libdwarf" = yes; then
+ AC_CHECK_HEADER(
+ [elf.h],
+ AC_CHECK_LIB([unwind], [backtrace], [folly_use_symbolizer=yes]),
+ )
+ fi
+fi
+if test "$folly_use_symbolizer" = yes; then
+ AC_DEFINE([USE_SYMBOLIZER], [1], [Define to 1 if we should use the symbolizer in init])
+fi
+
+
# Include directory that contains "folly" so #include <folly/Foo.h> works
AM_CPPFLAGS='-I$(top_srcdir)/..'
AM_CPPFLAGS="$AM_CPPFLAGS $BOOST_CPPFLAGS $OPENSSL_INCLUDES"
AM_CONDITIONAL([HAVE_LIBDWARF], [test "x${have_libdwarf}" = "xyes"])
AM_CONDITIONAL([HAVE_BOOST_CONTEXT], [test "x${ax_cv_boost_context}" = "xyes"])
AM_CONDITIONAL([EXCEPTION_TRACER], [test "x${build_exception_tracer}" = "xyes"])
+AM_CONDITIONAL([USE_SYMBOLIZER], [test "x${folly_use_symbolizer}" = "xyes"])
# remove pkg-config deps from dependent libraries
# (at least for pkg-config file purposes)