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FindBoost: Add vars Boost_VERSION_MACRO/MAJOR/MINOR/PATCH/COUNT

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This commit is contained in:
Dennis Klein
2019-05-03 21:41:45 +02:00
parent 26634752d0
commit 24342d5ef7
2 changed files with 45 additions and 21 deletions
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13
Help/release/dev/FindBoost-fphsa.rst
View File

@@ -1,5 +1,14 @@
FindBoost-fphsa
---------------
* The :module:`FindBoost` module defines a new imported target
``Boost::headers`` (same as ``Boost::boost``).
* The :module:`FindBoost` module was reworked to expose a more
consistent user experience between its config and module modes
and with other find modules in general.
* A new imported target ``Boost::headers`` is now defined (same
as ``Boost::boost``).
* New output variables ``Boost_VERSION_MACRO``,
``Boost_VERSION_MAJOR``, ``Boost_VERSION_MINOR``,
``Boost_VERSION_PATCH``, and ``Boost_VERSION_COUNT``
were added.

53
Modules/FindBoost.cmake
View File

@@ -31,11 +31,16 @@ case results are reported in variables::
Boost_<C>_LIBRARY - Libraries to link for component <C> (may include
target_link_libraries debug/optimized keywords)
Boost_VERSION - BOOST_VERSION value from boost/version.hpp
Boost_LIB_VERSION - Version string appended to library filenames
Boost_MAJOR_VERSION - Boost major version number (X in X.y.z)
Boost_MINOR_VERSION - Boost minor version number (Y in x.Y.z)
Boost_SUBMINOR_VERSION - Boost subminor version number (Z in x.y.Z)
alias: Boost_VERSION_MACRO
Boost_VERSION_STRING - Boost version number in x.y.z format
Boost_LIB_VERSION - Version string appended to library filenames
Boost_VERSION_MAJOR - Boost major version number (X in X.y.z)
alias: Boost_MAJOR_VERSION
Boost_VERSION_MINOR - Boost minor version number (Y in x.Y.z)
alias: Boost_MINOR_VERSION
Boost_VERSION_PATCH - Boost subminor version number (Z in x.y.Z)
alias: Boost_SUBMINOR_VERSION
Boost_VERSION_COUNT - Amount of version components (3)
Boost_LIB_DIAGNOSTIC_DEFINITIONS (Windows)
- Pass to add_definitions() to have diagnostic
information about Boost's automatic linking
@@ -1390,30 +1395,40 @@ if(Boost_INCLUDE_DIR)
"location of version.hpp: ${Boost_INCLUDE_DIR}/boost/version.hpp")
endif()
# Extract Boost_VERSION and Boost_LIB_VERSION from version.hpp
set(Boost_VERSION 0)
# Extract Boost_VERSION_MACRO and Boost_LIB_VERSION from version.hpp
set(Boost_VERSION_MACRO 0)
set(Boost_LIB_VERSION "")
file(STRINGS "${Boost_INCLUDE_DIR}/boost/version.hpp" _boost_VERSION_HPP_CONTENTS REGEX "#define BOOST_(LIB_)?VERSION ")
set(_Boost_VERSION_REGEX "([0-9]+)")
set(_Boost_LIB_VERSION_REGEX "\"([0-9_]+)\"")
foreach(v VERSION LIB_VERSION)
if("${_boost_VERSION_HPP_CONTENTS}" MATCHES "#define BOOST_${v} ${_Boost_${v}_REGEX}")
set(Boost_${v} "${CMAKE_MATCH_1}")
endif()
endforeach()
if("${_boost_VERSION_HPP_CONTENTS}" MATCHES "#define BOOST_VERSION ([0-9]+)")
set(Boost_VERSION_MACRO "${CMAKE_MATCH_1}")
endif()
if("${_boost_VERSION_HPP_CONTENTS}" MATCHES "#define BOOST_LIB_VERSION \"([0-9_]+)\"")
set(Boost_LIB_VERSION "${CMAKE_MATCH_1}")
endif()
unset(_boost_VERSION_HPP_CONTENTS)
math(EXPR Boost_MAJOR_VERSION "${Boost_VERSION} / 100000")
math(EXPR Boost_MINOR_VERSION "${Boost_VERSION} / 100 % 1000")
math(EXPR Boost_SUBMINOR_VERSION "${Boost_VERSION} % 100")
set(Boost_VERSION_STRING "${Boost_MAJOR_VERSION}.${Boost_MINOR_VERSION}.${Boost_SUBMINOR_VERSION}")
# Calculate version components
math(EXPR Boost_VERSION_MAJOR "${Boost_VERSION_MACRO} / 100000")
math(EXPR Boost_VERSION_MINOR "${Boost_VERSION_MACRO} / 100 % 1000")
math(EXPR Boost_VERSION_PATCH "${Boost_VERSION_MACRO} % 100")
set(Boost_VERSION_COUNT 3)
# Define alias variables for backwards compat.
set(Boost_MAJOR_VERSION ${Boost_VERSION_MAJOR})
set(Boost_MINOR_VERSION ${Boost_VERSION_MINOR})
set(Boost_SUBMINOR_VERSION ${Boost_VERSION_PATCH})
# Define Boost version in x.y.z format
set(Boost_VERSION_STRING "${Boost_VERSION_MAJOR}.${Boost_VERSION_MINOR}.${Boost_VERSION_PATCH}")
# Define final Boost_VERSION
set(Boost_VERSION ${Boost_VERSION_MACRO})
string(APPEND Boost_ERROR_REASON
"Boost version: ${Boost_MAJOR_VERSION}.${Boost_MINOR_VERSION}.${Boost_SUBMINOR_VERSION}\nBoost include path: ${Boost_INCLUDE_DIR}")
if(Boost_DEBUG)
message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
"version.hpp reveals boost "
"${Boost_MAJOR_VERSION}.${Boost_MINOR_VERSION}.${Boost_SUBMINOR_VERSION}")
"version.hpp reveals boost ${Boost_VERSION_STRING}")
endif()
if(Boost_FIND_VERSION)