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Improved configure.ac parsing

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This commit is contained in:
Konstantin Podsvirov 2015-08-31 15:20:18 +03:00
parent 0087da9d47
commit db01460042
1 changed files with 27 additions and 15 deletions
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42
cmake/CMakeLists.txt
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@ -5,6 +5,7 @@ cmake_minimum_required(VERSION 2.8)
project(protobuf C CXX)
# Options
option(protobuf_VERBOSE "Enable for verbose output" OFF)
option(BUILD_TESTING "Build tests" ON)
option(BUILD_SHARED_LIBS "Build Shared Libraries" OFF)
if (MSVC)
@ -14,29 +15,40 @@ endif (MSVC)
# Path to main configure script
set(protobuf_CONFIGURE_SCRIPT "../configure.ac")
# Parse version from configure script
file(STRINGS "${protobuf_CONFIGURE_SCRIPT}" protobuf_VERSION_LINE
LIMIT_COUNT 1
REGEX "^AC_INIT")
# Replace special characters
string(REPLACE "(" "_" protobuf_VERSION_LINE ${protobuf_VERSION_LINE})
string(REPLACE ")" "_" protobuf_VERSION_LINE ${protobuf_VERSION_LINE})
string(REPLACE "[" "_" protobuf_VERSION_LINE ${protobuf_VERSION_LINE})
string(REPLACE "]" "_" protobuf_VERSION_LINE ${protobuf_VERSION_LINE})
# Parse version string
string(REGEX REPLACE "^AC_INIT__Protocol Buffers_,_([^_]+).*$" "\\1"
protobuf_VERSION_STRING "${protobuf_VERSION_LINE}")
# Parse configure script
set(protobuf_AC_INIT_REGEX
"^AC_INIT\\(\\[([^]]+)\\],\\[([^]]+)\\],\\[([^]]+)\\],\\[([^]]+)\\]\\)$")
file(STRINGS "${protobuf_CONFIGURE_SCRIPT}" protobuf_AC_INIT_LINE
LIMIT_COUNT 1 REGEX "^AC_INIT")
# Description
string(REGEX REPLACE "${protobuf_AC_INIT_REGEX}" "\\1"
protobuf_DESCRIPTION "${protobuf_AC_INIT_LINE}")
# Version
string(REGEX REPLACE "${protobuf_AC_INIT_REGEX}" "\\2"
protobuf_VERSION_STRING "${protobuf_AC_INIT_LINE}")
# Contact
string(REGEX REPLACE "${protobuf_AC_INIT_REGEX}" "\\3"
protobuf_CONTACT "${protobuf_AC_INIT_LINE}")
# Parse version tweaks
string(REGEX REPLACE "^([0-9]+)\\.([0-9]+)\\.([0-9]+).*$" "\\1"
set(protobuf_VERSION_REGEX "^([0-9]+)\\.([0-9]+)\\.([0-9]+).*$")
string(REGEX REPLACE "${protobuf_VERSION_REGEX}" "\\1"
protobuf_VERSION_MAJOR "${protobuf_VERSION_STRING}")
string(REGEX REPLACE "^([0-9]+)\\.([0-9]+)\\.([0-9]+).*$" "\\2"
string(REGEX REPLACE "${protobuf_VERSION_REGEX}" "\\2"
protobuf_VERSION_MINOR "${protobuf_VERSION_STRING}")
string(REGEX REPLACE "^([0-9]+)\\.([0-9]+)\\.([0-9]+).*$" "\\3"
string(REGEX REPLACE "${protobuf_VERSION_REGEX}" "\\3"
protobuf_VERSION_PATCH "${protobuf_VERSION_STRING}")
# Package version
set(protobuf_VERSION
"${protobuf_VERSION_MAJOR}.${protobuf_VERSION_MINOR}.${protobuf_VERSION_PATCH}")
if(protobuf_VERBOSE)
message(STATUS "Configuration script parsing status [")
message(STATUS " Description : ${protobuf_DESCRIPTION}")
message(STATUS " Version : ${protobuf_VERSION} (${protobuf_VERSION_STRING})")
message(STATUS " Contact : ${protobuf_CONTACT}")
message(STATUS "]")
endif()
add_definitions(-DGOOGLE_PROTOBUF_CMAKE_BUILD)
find_package(Threads REQUIRED)