libevent/cmake/VersionViaGit.cmake
Azat Khuzhin a0bfe2c451
Merge branch 'cmake-configure-fixes-v2'
Fixes in cmake, to make it more like configure and support some
cross-compiling.

* cmake-configure-fixes-v2:
  cmake: fix extracting of the version from git (check for number of matches)
  Detect arch4random_addrandom() existence
  Use off_t instead of ev_off_t for sendfile() (fixes android build)
  cmake: detect _GNU_SOURCE not by __GNU_LIBRARY__ only (fallback to _GNU_SOURCE)
  Check for WNOWAIT in waitpid() in runtime (not in cmake/configure)
  cmake: add <pthread.h> into CMAKE_REQUIRED_INCLUDES for sizeof(pthread_t)
  cmake: fix values for #cmakedefine
  cmake: drop duplicates from event-config template
  cmake: add value for the #cmakedefine macros (like autoconf)
  cmake: Fix checking of enum values from sysctl.h

(cherry picked from commit 5aade2d30b6c5eff226cbf7b63fda5a01987ba4f)
2019-02-02 15:13:49 +03:00

65 lines
1.9 KiB
CMake

# This module defines the following variables utilizing
# git to determine the parent tag. And if found the macro
# will attempt to parse them in the github tag fomat
#
# Usful for auto-versionin in ou CMakeLists
#
# EVENT_GIT___VERSION_MAJOR - Major version.
# EVENT_GIT___VERSION_MINOR - Minor version
# EVENT_GIT___VERSION_STAGE - Stage version
#
# Example usage:
#
# event_fuzzy_version_from_git()
# message("Libvent major=${EVENT_GIT___VERSION_MAJOR}")
# message(" minor=${EVENT_GIT___VERSION_MINOR}")
# message(" patch=${EVENT_GIT___VERSION_PATCH}")
# message(" stage=${EVENT_GIT___VERSION_STAGE}")
# endif()
include(FindGit)
macro(event_fuzzy_version_from_git)
# set our defaults.
set(EVENT_GIT___VERSION_MAJOR 2)
set(EVENT_GIT___VERSION_MINOR 1)
set(EVENT_GIT___VERSION_PATCH 8)
set(EVENT_GIT___VERSION_STAGE "beta")
find_package(Git)
if (GIT_FOUND)
execute_process(
COMMAND
${GIT_EXECUTABLE} describe --abbrev=0
WORKING_DIRECTORY
${PROJECT_SOURCE_DIR}
RESULT_VARIABLE
GITRET
OUTPUT_VARIABLE
GITVERSION
OUTPUT_STRIP_TRAILING_WHITESPACE
)
string(REGEX REPLACE "[\\._-]" ";" VERSION_LIST "${GITVERSION}")
list(LENGTH VERSION_LIST VERSION_LIST_LENGTH)
if ((GITRET EQUAL 0) AND (VERSION_LIST_LENGTH EQUAL 5))
list(GET VERSION_LIST 1 _MAJOR)
list(GET VERSION_LIST 2 _MINOR)
list(GET VERSION_LIST 3 _PATCH)
list(GET VERSION_LIST 4 _STAGE)
set(_DEFAULT_VERSION "${EVENT_GIT___VERSION_MAJOR}.${EVENT_GIT___VERSION_MINOR}.${EVENT_GIT___VERSION_PATCH}-${EVENT_GIT___VERSION_STAGE}")
set(_GIT_VERSION "${_MAJOR}.${_MINOR}.${_PATCH}-${_STAGE}")
if (${_DEFAULT_VERSION} VERSION_LESS ${_GIT_VERSION})
set(EVENT_GIT___VERSION_MAJOR ${_MAJOR})
set(EVENT_GIT___VERSION_MINOR ${_MINOR})
set(EVENT_GIT___VERSION_PATCH ${_PATCH})
set(EVENT_GIT___VERSION_STAGE ${_STAGE})
endif()
endif()
endif()
endmacro()