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Subject: [PATCH] Add LWS_LIBRARY_VERSION_NUMBER to lws_config.h.

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This changeset adds a few preprocessor macros to lws_config.h to allow
a user of libwebsockets to determine at compile time which version of
lws they are compiling against.

This exposes the already existing LWS_LIBRARY_VERSION_MAJOR and _MINOR
values, and adds LWS_LIBRARY_VERSION_PATCH. This suggests that future
minor bugfix release versions of lws would be e.g. 1.6.0 -> 1.6.1 rather
than the style used previously: 1.2 -> 1.21.

The way this is currently set up means new minor revisions (with
_PATCH==0) always end with .0 but I could change this if preferred.

The most important addition is LWS_LIBRARY_VERSION_NUMBER, which
produces a number of the form 1005001 for version 1.5.1 - i.e. each part
major, minor, patch can extend from 0-999. This macro allows a very easy
compile time comparison of version numbers.
This commit is contained in:
Roger A. Light 2015-12-14 17:25:29 +00:00 • committed by Andy Green
parent ea592fa869
commit e59908e7fc
2 changed files with 13 additions and 2 deletions
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9
CMakeLists.txt
View file

@ -10,7 +10,8 @@ set(PACKAGE "libwebsockets")
set(CPACK_PACKAGE_NAME "${PACKAGE}")
set(CPACK_PACKAGE_VERSION_MAJOR "1")
set(CPACK_PACKAGE_VERSION_MINOR "5")
set(CPACK_PACKAGE_VERSION "${CPACK_PACKAGE_VERSION_MAJOR}.${CPACK_PACKAGE_VERSION_MINOR}")
set(CPACK_PACKAGE_VERSION_PATCH "0")
set(CPACK_PACKAGE_VERSION "${CPACK_PACKAGE_VERSION_MAJOR}.${CPACK_PACKAGE_VERSION_MINOR}.${CPACK_PACKAGE_VERSION_PATCH}")
set(CPACK_PACKAGE_VENDOR "andy@warmcat.com")
set(CPACK_PACKAGE_DESCRIPTION_SUMMARY "${PACKAGE} ${PACKAGE_VERSION}")
set(SOVERSION "6")
@ -19,6 +20,10 @@ set(CPACK_SOURCE_PACKAGE_FILE_NAME "${CPACK_PACKAGE_NAME}-${CPACK_PACKAGE_VERSIO
set(VERSION "${CPACK_PACKAGE_VERSION}")
set(LWS_LIBRARY_VERSION ${CPACK_PACKAGE_VERSION})
set(LWS_LIBRARY_VERSION_MAJOR ${CPACK_PACKAGE_VERSION_MAJOR})
set(LWS_LIBRARY_VERSION_MINOR ${CPACK_PACKAGE_VERSION_MINOR})
set(LWS_LIBRARY_VERSION_PATCH ${CPACK_PACKAGE_VERSION_PATCH})
set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${PROJECT_SOURCE_DIR}/cmake/")
message(STATUS "CMAKE_TOOLCHAIN_FILE='${CMAKE_TOOLCHAIN_FILE}'")
@ -957,7 +962,7 @@ includedir=\${prefix}/include
Name: libwebsockets
Description: Websockets server and client library
Version: ${CPACK_PACKAGE_VERSION_MAJOR}.${CPACK_PACKAGE_VERSION_MINOR}
Version: ${CPACK_PACKAGE_VERSION_MAJOR}.${CPACK_PACKAGE_VERSION_MINOR}.${CPACK_PACKAGE_VERSION_PATCH}
Libs: -L\${libdir} -lwebsockets
Cflags: -I\${includedir}"

6
lws_config.h.in
View file

@ -17,6 +17,12 @@
/* The Libwebsocket version */
#cmakedefine LWS_LIBRARY_VERSION "${LWS_LIBRARY_VERSION}"
#define LWS_LIBRARY_VERSION_MAJOR ${LWS_LIBRARY_VERSION_MAJOR}
#define LWS_LIBRARY_VERSION_MINOR ${LWS_LIBRARY_VERSION_MINOR}
#define LWS_LIBRARY_VERSION_PATCH ${LWS_LIBRARY_VERSION_PATCH}
/* LWS_LIBRARY_VERSION_NUMBER looks like 1005001 for e.g. version 1.5.1 */
#define LWS_LIBRARY_VERSION_NUMBER (LWS_LIBRARY_MAJOR*1000000)+(LWS_LIBRARY_VERSION_MINOR*1000)+LWS_LIBRARY_VERSION_PATCH
/* The current git commit hash that we're building from */
#cmakedefine LWS_BUILD_HASH "${LWS_BUILD_HASH}"