message: protobuf is not required for peercoin
diff: @@ -126,8 +126,6 @@ AC_ARG_ENABLE([lcov],
  [use_lcov=yes],
  [use_lcov=no])
  -AC_ARG_WITH([protoc-bindir],[AS_HELP_STRING([--with-protoc-bindir=BIN_DIR],[specify protoc bin path])], [protoc_bin_path=$withval], [])
  -
  AC_CONFIG_SRCDIR([src])
  AC_CONFIG_HEADERS([src/bitcoin-config.h])
  @@ -449,7 +447,6 @@ if test x$use_pkgconfig = xyes; then
  [
  PKG_CHECK_MODULES([SSL], [libssl], [INCLUDES="$INCLUDES $SSL_CFLAGS"; LIBS="$LIBS $SSL_LIBS"], [AC_MSG_ERROR(openssl not found.)])
  PKG_CHECK_MODULES([CRYPTO], [libcrypto], [INCLUDES="$INCLUDES $CRYPTO_CFLAGS"; LIBS="$LIBS $CRYPTO_LIBS"], [AC_MSG_ERROR(libcrypto not found.)])
  - BITCOIN_QT_CHECK([PKG_CHECK_MODULES([PROTOBUF], [protobuf], [have_protobuf=yes], [BITCOIN_QT_FAIL(libprotobuf not found)])])
  if test x$use_qr != xno; then
  BITCOIN_QT_CHECK([PKG_CHECK_MODULES([QR], [libqrencode], [have_qrencode=yes], [have_qrencode=no])])
  fi
  @@ -462,15 +459,12 @@ else
  AC_CHECK_HEADER([openssl/ssl.h],, AC_MSG_ERROR(libssl headers missing),)
  AC_CHECK_LIB([ssl], [main],, AC_MSG_ERROR(libssl missing))
  - BITCOIN_QT_CHECK(AC_CHECK_LIB([protobuf] ,[main],,BITCOIN_QT_FAIL(libprotobuf not found)))
  if test x$use_qr != xno; then
  BITCOIN_QT_CHECK([AC_CHECK_LIB([qrencode], [main],, [have_qrencode=no])])
  BITCOIN_QT_CHECK([AC_CHECK_HEADER([qrencode.h],, have_qrencode=no)])
  fi
  fi
  -BITCOIN_QT_PATH_PROGS([PROTOC], [protoc],$protoc_bin_path)
  -
  dnl sets $bitcoin_enable_qt, $bitcoin_enable_qt_test, $bitcoin_enable_qt_dbus
  BITCOIN_QT_CONFIGURE([$use_pkgconfig], [qt4])
  