-# AC_CHECK_HEADERS is repeated to work around apparent autoconf 2.59 bug. If
-# AC_CHECK_HEADERS comes after the if clause, the last AC_LANG call gets used,
-# no matter which branch is taken.
-if test "$ENABLE_BUILD_WITH_CXX" = "no"; then
- AC_LANG(C)
- AC_CHECK_HEADERS(locale.h fcntl.h limits.h stddef.h \
- stdlib.h strings.h string.h sys/file.h unistd.h)
-else
- AC_LANG(C++)
- AC_CHECK_HEADERS(locale.h fcntl.h limits.h stddef.h \