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Fix prerelease version matching to be more consistent with the find_package arguments.

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This commit is contained in:
Walter Gray 2016-06-09 15:38:39 -07:00
parent 401e07d372
commit 5ebcfc1cfd
2 changed files with 22 additions and 15 deletions
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1
cmake/examples.cmake
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@ -11,6 +11,7 @@ include(ExternalProject)
# Internal utility function: Create a custom target representing a build of examples with custom options.
function(add_examples_build NAME)
ExternalProject_Add(${NAME}
PREFIX ${NAME}
SOURCE_DIR "${examples_dir}"

36
cmake/protobuf-config-version.cmake.in
View File

@ -1,28 +1,35 @@
set(PACKAGE_VERSION "@protobuf_VERSION@")
set(${PACKAGE_FIND_NAME}_VERSION_PRERELEASE "@protobuf_VERSION_PRERELEASE@" PARENT_SCOPE)
# Prerelease versions cannot be passed in directly via the find_package command,
# so we allow users to specify it in a variable
if(NOT DEFINED "${${PACKAGE_FIND_NAME}_FIND_VERSION_PRERELEASE}")
set("${${PACKAGE_FIND_NAME}_FIND_VERSION_PRERELEASE}" "")
else()
set(PACKAGE_FIND_VERSION ${PACKAGE_FIND_VERSION}-${${PACKAGE_FIND_NAME}_FIND_VERSION_PRERELEASE})
endif()
set(PACKAGE_FIND_VERSION_PRERELEASE "${${PACKAGE_FIND_NAME}_FIND_VERSION_PRERELEASE}")
# VERSION_EQUAL ignores the prerelease strings, so we use STREQUAL.
if(PACKAGE_FIND_VERSION STREQUAL PACKAGE_VERSION)
set(PACKAGE_VERSION_EXACT TRUE)
endif()
set(PACKAGE_VERSION_COMPATIBLE TRUE) #Assume true until shown otherwise
# Handle prerelease versions
set(PACKAGE_FIND_VERSION_PRERELEASE "${${PACKAGE_FIND_NAME}_FIND_VERSION_PRERELEASE}")
if(NOT "@protobuf_VERSION_PRERELEASE@" STREQUAL "")
if(NOT ${PACKAGE_FIND_NAME}_FIND_VERSION_PRERELEASE)
if(NOT PACKAGE_FIND_VERSION_MAJOR EQUAL "@protobuf_VERSION_MAJOR@")
set(PACKAGE_VERSION_COMPATIBLE FALSE)
elseif(PACKAGE_FIND_VERSION VERSION_GREATER PACKAGE_VERSION)
set(PACKAGE_VERSION_COMPATIBLE FALSE)
elseif(PACKAGE_FIND_VERSION VERSION_EQUAL PACKAGE_VERSION)
# Do not match prerelease versions to non-prerelease version requests.
if(NOT "@protobuf_VERSION_PRERELEASE@" STREQUAL "" AND PACKAGE_FIND_VERSION_PRERELEASE STREQUAL "")
message(AUTHOR_WARNING "To use this prerelease version of ${PACKAGE_FIND_NAME}, set ${PACKAGE_FIND_NAME}_FIND_VERSION_PRERELEASE to '@protobuf_VERSION_PRERELEASE@' or greater.")
set(PACKAGE_VERSION_COMPATIBLE FALSE)
message(AUTHOR_WARNING "To use this prerelease version of ${PACKAGE_FIND_NAME}, set ${PACKAGE_FIND_NAME}_FIND_VERSION_PRERELEASE to '@protobuf_VERSION_PRERELEASE@'.")
endif()
if(NOT "${PACKAGE_FIND_VERSION}-${PACKAGE_FIND_VERSION_PRERELEASE}" STREQUAL "${PACKAGE_VERSION}")
set(PACKAGE_VERSION_COMPATIBLE FALSE)
else()
set(PACKAGE_VERSION_EXACT TRUE)
endif()
else()
if(NOT PACKAGE_FIND_VERSION_MAJOR EQUAL "@protobuf_VERSION_MAJOR@")
set(PACKAGE_VERSION_COMPATIBLE FALSE)
elseif(PACKAGE_FIND_VERSION VERSION_GREATER PACKAGE_VERSION)
# Not robustly SemVer compliant, but protobuf never uses '.' separated prerelease identifiers.
if(PACKAGE_FIND_VERSION_PRERELEASE STRGREATER "@protobuf_VERSION_PRERELEASE@")
set(PACKAGE_VERSION_COMPATIBLE FALSE)
endif()
endif()
@ -39,4 +46,3 @@ if(NOT CMAKE_SIZEOF_VOID_P STREQUAL "@CMAKE_SIZEOF_VOID_P@")
set(PACKAGE_VERSION_UNSUITABLE TRUE)
endif()
set(${PACKAGE_FIND_NAME}_VERSION_PRERELEASE "@protobuf_VERSION_PRERELEASE@" PARENT_SCOPE)