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|
# dnstap.m4
# dt_DNSTAP(default_dnstap_socket_path, [action-if-true], [action-if-false])
# --------------------------------------------------------------------------
# Check for required dnstap libraries and add dnstap configure args.
AC_DEFUN([dt_DNSTAP],
[
AC_ARG_ENABLE([dnstap],
AS_HELP_STRING([--enable-dnstap],
[Enable dnstap support (requires protobuf-c)]),
[opt_dnstap=$enableval],
[opt_dnstap=no])
AC_ARG_WITH([dnstap-socket-path],
AS_HELP_STRING([--with-dnstap-socket-path=pathname],
[set default dnstap socket path]),
[opt_dnstap_socket_path=$withval],
[opt_dnstap_socket_path="$1"])
if test "x$opt_dnstap" != "xno"; then
AC_PATH_PROG([PROTOC], [protoc])
# 'protoc-c' is deprecated. We use 'protoc' instead. If it can not be
# found, try 'protoc-c'.
if test -z "$PROTOC"; then
AC_PATH_PROG([PROTOC_C], [protoc-c])
else
PROTOC_C="$PROTOC"
fi
if test -z "$PROTOC_C"; then
AC_MSG_ERROR([[The protoc or protoc-c program was not found. It is needed for dnstap, use --disable-dnstap, or install protobuf-c to provide protoc or protoc-c]])
fi
# Check for protoc-gen-c plugin
AC_PATH_PROG([PROTOC_GEN_C], [protoc-gen-c])
if test -z "$PROTOC_GEN_C"; then
AC_MSG_ERROR([[The protoc-gen-c plugin was not found. It is needed for dnstap, use --disable-dnstap, or install protobuf-c-compiler to provide protoc-gen-c]])
fi
# Test that protoc-gen-c actually works
AC_MSG_CHECKING([if protoc-gen-c plugin works])
cat > conftest.proto << EOF
syntax = "proto2";
message TestMessage {
optional string test_field = 1;
}
EOF
if $PROTOC_C --c_out=. conftest.proto >/dev/null 2>&1; then
AC_MSG_RESULT([yes])
rm -f conftest.proto conftest.pb-c.c conftest.pb-c.h
else
AC_MSG_RESULT([no])
rm -f conftest.proto conftest.pb-c.c conftest.pb-c.h
AC_MSG_ERROR([[The protoc-gen-c plugin is not working properly. Please ensure protobuf-c-compiler is properly installed]])
fi
AC_ARG_WITH([protobuf-c],
AS_HELP_STRING([--with-protobuf-c=path], [Path where protobuf-c is installed, for dnstap]),
[
# workaround for protobuf-c includes at old dir before protobuf-c-1.0.0
if test -f $withval/include/google/protobuf-c/protobuf-c.h; then
CFLAGS="$CFLAGS -I$withval/include/google"
else
CFLAGS="$CFLAGS -I$withval/include"
fi
LDFLAGS="$LDFLAGS -L$withval/lib"
],
[
if test -n "$PKG_CONFIG"; then
PKG_CHECK_MODULES([PROTOBUFC], [libprotobuf-c],
[
CFLAGS="$CFLAGS $PROTOBUFC_CFLAGS"
LIBS="$LIBS $PROTOBUFC_LIBS"
],
[
# pkg-config failed; try falling back to known values
# workaround for protobuf-c includes at old dir before protobuf-c-1.0.0
if test -f /usr/include/google/protobuf-c/protobuf-c.h; then
CFLAGS="$CFLAGS -I/usr/include/google"
else
if test -f /usr/local/include/google/protobuf-c/protobuf-c.h; then
CFLAGS="$CFLAGS -I/usr/local/include/google"
LDFLAGS="$LDFLAGS -L/usr/local/lib"
else
AC_MSG_ERROR([The protobuf-c package was not found with pkg-config. Please install protobuf-c!])
fi
fi
]
)
else
# workaround for protobuf-c includes at old dir before protobuf-c-1.0.0
if test -f /usr/include/google/protobuf-c/protobuf-c.h; then
CFLAGS="$CFLAGS -I/usr/include/google"
else
if test -f /usr/local/include/google/protobuf-c/protobuf-c.h; then
CFLAGS="$CFLAGS -I/usr/local/include/google"
LDFLAGS="$LDFLAGS -L/usr/local/lib"
fi
fi
fi
]
)
AC_SEARCH_LIBS([protobuf_c_message_pack], [protobuf-c], [],
AC_MSG_ERROR([The protobuf-c library was not found. Please install the development libraries for protobuf-c!]))
$2
else
$3
fi
])
|
