+# Set default enable state for debug info.
+# The _enable_debug_info variable is prepended with an underscore to
+# avoid clashing with the one generated by AC_ARG_ENABLE.
+AS_IF([test "x$DEFAULT_ENABLE_DEBUG_INFO" = xyes], [_enable_debug_info=yes], [_enable_debug_info=no])
+
+# Optional debug info feature
+# Do _not_ indent the help string below (appears in the configure --help
+# output).
+AC_ARG_ENABLE([debug-info],
+[AC_HELP_STRING([--enable-debug-info], [enable the debug info feature (default on Linux)])]
+[AC_HELP_STRING([--disable-debug-info], [disable the debug info feature (default on OS X and Solaris)])],
+ [AS_IF([test "x$enableval" = xyes], [_enable_debug_info=yes], [_enable_debug_info=no])], [])
+
+AM_CONDITIONAL([ENABLE_DEBUG_INFO], [test "x$_enable_debug_info" = xyes])
+AS_IF([test "x$_enable_debug_info" = xyes], [
+ # Check if libelf and libdw are present
+ AC_CHECK_LIB([elf], [elf_version], [], [AC_MSG_ERROR(Missing libelf (from elfutils >= 0.154) which is required by debug info. You can disable this feature using --disable-debug-info.)])
+ AC_CHECK_LIB([dw], [dwarf_begin], [], [AC_MSG_ERROR(Missing libdw (from elfutils >= 0.154) which is required by debug info. You can disable this feature using --disable-debug-info.)])
+ BT_LIB_ELFUTILS([0], [154], [:], [AC_MSG_ERROR(elfutils >= 0.154 is required to use the debug info feature. You can disable this feature using --disable-debug-info.)])
+ AC_DEFINE([ENABLE_DEBUG_INFO], [1], [Define to 1 if you enable the 'debug info' feature])
+], [])
+
+AC_ARG_VAR([BUILT_IN_PLUGINS], [Statically-link in-tree plug-ins into the babeltrace binary])
+AS_IF([test "x$BUILT_IN_PLUGINS" != x], [
+# Built-in plug-ins are only available when the --disable-shared --enable-static options are used.
+ AS_IF([test "x$enable_static" != "xyes"], [AC_MSG_ERROR(--enable-static must be used to bundle plug-ins in the babeltrace executable)])
+ AS_IF([test "x$enable_shared" = "xyes"], [AC_MSG_ERROR(--disable-shared must be used to bundle plug-ins in the babeltrace executable)])
+ built_in_plugins=yes
+ AC_DEFINE([BT_BUILT_IN_PLUGINS], [1], [Define to 1 to register plug-in attributes in static executable sections])
+])
+AM_CONDITIONAL([BUILT_IN_PLUGINS], [test "x$built_in_plugins" = "xyes"])
+
+PKG_CHECK_MODULES(GMODULE, [gmodule-2.0 >= 2.0.0])