48 lines
1.4 KiB
CMake
48 lines
1.4 KiB
CMake
#
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# This file is open source software, licensed to you under the terms
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# of the Apache License, Version 2.0 (the "License"). See the NOTICE file
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# distributed with this work for additional information regarding copyright
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# ownership. You may not use this file except in compliance with the License.
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#
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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#
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#
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# Copyright (C) 2018 Scylladb, Ltd.
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#
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find_program (
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ragel_RAGEL_EXECUTABLE
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ragel)
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if (NOT ragel_RAGEL_EXECUTABLE)
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message (FATAL_ERROR "ragel is required for processing .rl source files!")
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endif ()
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mark_as_advanced (ragel_RAGEL_EXECUTABLE)
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set (_ragel_version_pattern "[0-9]+\\.[0-9]+\\.[0-9]+(\\.[0-9]+)?")
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if (ragel_RAGEL_EXECUTABLE)
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set (ragel_FOUND ON)
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execute_process (COMMAND ${ragel_RAGEL_EXECUTABLE} -v
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OUTPUT_VARIABLE _ragel_version_output)
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if (${_ragel_version_output} MATCHES "version (${_ragel_version_pattern})")
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set (ragel_VERSION ${CMAKE_MATCH_1})
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endif ()
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endif ()
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find_package_handle_standard_args (ragel
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REQUIRED_VARS ragel_RAGEL_EXECUTABLE
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VERSION_VAR ragel_VERSION)
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