# expose required -std option via pkg-config
PKG_CXXFLAGS=$STD
+# See if -Wunknown-warning-option is supported
+AC_MSG_CHECKING(
+ [whether -Wunknown-warning-option is supported])
+AC_CACHE_VAL([folly_cv_cxx_unknown_warning_option_support], [
+ folly_save_CXXFLAGS="$CXXFLAGS"
+ CXXFLAGS="$CXXFLAGS -Werror=unknown-warning-option"
+ AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM([[]], [[]])],
+ [
+ # The compiler didn't completely error out on -Werror=unknown-warning-option
+ CXXFLAGS="$CXXFLAGS -Werror=unknown-warning-option -Wthis-is-an-unknown-option-that-should-error"
+ AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM([[]], [[]])],
+ [folly_cv_cxx_unknown_warning_option_support=no],
+ [folly_cv_cxx_unknown_warning_option_support=yes])
+ ],
+ [folly_cv_cxx_unknown_warning_option_support=no])
+ CXXFLAGS="$folly_save_CXXFLAGS"])
+AC_MSG_RESULT([$folly_cv_cxx_unknown_warning_option_support])
+
# See if -Wshadow-local and -Wshadow-compatible-local are supported
AC_MSG_CHECKING(
[whether -Wshadow-local and -Wshadow-compatible-local are supported])
AC_CACHE_VAL([folly_cv_cxx_shadow_local_support], [
folly_save_CXXFLAGS="$CXXFLAGS"
CXXFLAGS="$CXXFLAGS -Wshadow-local -Wshadow-compatible-local"
+ if test "$folly_cv_cxx_unknown_warning_option_support" = yes; then
+ CXXFLAGS="$CXXFLAGS -Werror=unknown-warning-option"
+ fi
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([[]], [[]])],
[folly_cv_cxx_shadow_local_support=yes],
[Define to 1 if the compiler has VLA (variable-length array) support,
otherwise define to 0])
+AC_CACHE_CHECK(
+ [for variable template support],
+ [folly_cv_prog_cc_have_variable_templates],
+ [AC_COMPILE_IFELSE(
+ [AC_LANG_SOURCE[
+ template <class> constexpr bool g = true;
+ int main() {}
+ ]],
+ [folly_cv_prog_cc_have_variable_templates=yes],
+ [folly_cv_prog_cc_have_variable_templates=no])])
+
+AM_CONDITIONAL(
+ [HAVE_VARIABLE_TEMPLATES],
+ [test "x${folly_cv_prog_cc_have_variable_templates}" = "xyes"],
+ [Define to 1 if the compiler supports variable templates])
+
# Checks for library functions.
AC_CHECK_FUNCS([malloc_size \
malloc_usable_size \
[use_follytestmain=${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)
# Output
AC_CONFIG_FILES([Makefile
+ chrono/test/Makefile
io/test/Makefile
libfolly.pc
test/Makefile
test/function_benchmark/Makefile
experimental/Makefile
experimental/io/test/Makefile
+ experimental/logging/Makefile
+ experimental/logging/example/Makefile
experimental/symbolizer/Makefile
init/Makefile
stats/test/Makefile])