[AC_HELP_STRING([--enable-pdf], [Compile with pdf support])],enable_pdf="$enableval",enable_pdf=yes)
if test "x$enable_pdf" = "xyes"; then
[AC_HELP_STRING([--enable-pdf], [Compile with pdf support])],enable_pdf="$enableval",enable_pdf=yes)
if test "x$enable_pdf" = "xyes"; then