+AC_ARG_ENABLE([phdr],
+ [ --enable-phdr enable support for Prototype for High Dyamic Range in AS-02],
+ [case "${enableval}" in
+ yes) phdr_use=true ;;
+ no) phdr_use=false ;;
+ *) AC_MSG_ERROR([bad value ${enableval} for --enable-phdr]) ;;
+ esac],[phdr_use=false])
+ AM_CONDITIONAL([USE_PHDR], [test x$phdr_use = xtrue])