diff options
Diffstat (limited to 'Modules/FindBoost.cmake')
-rw-r--r-- | Modules/FindBoost.cmake | 158 |
1 files changed, 60 insertions, 98 deletions
diff --git a/Modules/FindBoost.cmake b/Modules/FindBoost.cmake index a2036a6..083d8c8 100644 --- a/Modules/FindBoost.cmake +++ b/Modules/FindBoost.cmake @@ -417,17 +417,6 @@ function(_Boost_COMPILER_DUMPVERSION _OUTPUT_VERSION) endfunction() # -# A convenience function for marking desired components -# as found or not -# -function(_Boost_MARK_COMPONENTS_FOUND _yes_or_no) - foreach(COMPONENT ${Boost_FIND_COMPONENTS}) - string(TOUPPER ${COMPONENT} UPPERCOMPONENT) - set(Boost_${UPPERCOMPONENT}_FOUND ${_yes_or_no}) - endforeach() -endfunction() - -# # Take a list of libraries with "thread" in it # and prepend duplicates with "thread_${Boost_THREADAPI}" # at the front of the list @@ -748,36 +737,71 @@ endif() # Extract version information from version.hpp # ------------------------------------------------------------------------ +# Set Boost_FOUND based only on header location and version. +# It will be updated below for component libraries. if(Boost_INCLUDE_DIR) - # Extract Boost_VERSION and Boost_LIB_VERSION from version.hpp - # Read the whole file: - # - set(BOOST_VERSION 0) - set(BOOST_LIB_VERSION "") - file(STRINGS "${Boost_INCLUDE_DIR}/boost/version.hpp" _boost_VERSION_HPP_CONTENTS REGEX "#define BOOST_(LIB_)?VERSION ") if(Boost_DEBUG) message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] " "location of version.hpp: ${Boost_INCLUDE_DIR}/boost/version.hpp") endif() - string(REGEX REPLACE ".*#define BOOST_VERSION ([0-9]+).*" "\\1" Boost_VERSION "${_boost_VERSION_HPP_CONTENTS}") - string(REGEX REPLACE ".*#define BOOST_LIB_VERSION \"([0-9_]+)\".*" "\\1" Boost_LIB_VERSION "${_boost_VERSION_HPP_CONTENTS}") + # Extract Boost_VERSION and Boost_LIB_VERSION from version.hpp + set(Boost_VERSION 0) + set(Boost_LIB_VERSION "") + file(STRINGS "${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() unset(_boost_VERSION_HPP_CONTENTS) - if(NOT "${Boost_VERSION}" STREQUAL "0") - math(EXPR Boost_MAJOR_VERSION "${Boost_VERSION} / 100000") - math(EXPR Boost_MINOR_VERSION "${Boost_VERSION} / 100 % 1000") - math(EXPR Boost_SUBMINOR_VERSION "${Boost_VERSION} % 100") + math(EXPR Boost_MAJOR_VERSION "${Boost_VERSION} / 100000") + math(EXPR Boost_MINOR_VERSION "${Boost_VERSION} / 100 % 1000") + math(EXPR Boost_SUBMINOR_VERSION "${Boost_VERSION} % 100") - set(Boost_ERROR_REASON - "${Boost_ERROR_REASON}Boost version: ${Boost_MAJOR_VERSION}.${Boost_MINOR_VERSION}.${Boost_SUBMINOR_VERSION}\nBoost include path: ${Boost_INCLUDE_DIR}") - endif() + set(Boost_ERROR_REASON + "${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}.${Boost_SUBMINOR_VERSION}") endif() + + if(Boost_FIND_VERSION) + # Set Boost_FOUND based on requested version. + set(_Boost_VERSION "${Boost_MAJOR_VERSION}.${Boost_MINOR_VERSION}.${Boost_SUBMINOR_VERSION}") + if("${_Boost_VERSION}" VERSION_LESS "${Boost_FIND_VERSION}") + set(Boost_FOUND 0) + set(_Boost_VERSION_AGE "old") + elseif(Boost_FIND_VERSION_EXACT AND + NOT "${_Boost_VERSION}" VERSION_EQUAL "${Boost_FIND_VERSION}") + set(Boost_FOUND 0) + set(_Boost_VERSION_AGE "new") + else() + set(Boost_FOUND 1) + endif() + if(NOT Boost_FOUND) + # State that we found a version of Boost that is too new or too old. + set(Boost_ERROR_REASON + "${Boost_ERROR_REASON}\nDetected version of Boost is too ${_Boost_VERSION_AGE}. Requested version was ${Boost_FIND_VERSION_MAJOR}.${Boost_FIND_VERSION_MINOR}") + if (Boost_FIND_VERSION_PATCH) + set(Boost_ERROR_REASON + "${Boost_ERROR_REASON}.${Boost_FIND_VERSION_PATCH}") + endif () + if (NOT Boost_FIND_VERSION_EXACT) + set(Boost_ERROR_REASON "${Boost_ERROR_REASON} (or newer)") + endif () + set(Boost_ERROR_REASON "${Boost_ERROR_REASON}.") + endif () + else() + # Caller will accept any Boost version. + set(Boost_FOUND 1) + endif() else() + set(Boost_FOUND 0) set(Boost_ERROR_REASON "${Boost_ERROR_REASON}Unable to find the Boost header files. Please set BOOST_ROOT to the root directory containing Boost or BOOST_INCLUDEDIR to the directory containing Boost's headers.") endif() @@ -1068,78 +1092,13 @@ endif() # End finding boost libraries # ------------------------------------------------------------------------ -# ------------------------------------------------------------------------ -# Begin long process of determining Boost_FOUND, starting with version -# number checks, followed by -# TODO: Ideally the version check logic should happen prior to searching -# for libraries... -# ------------------------------------------------------------------------ - set(Boost_INCLUDE_DIRS ${Boost_INCLUDE_DIR}) set(Boost_LIBRARY_DIRS ${Boost_LIBRARY_DIR}) -set(Boost_FOUND FALSE) -if(Boost_INCLUDE_DIR) - set( Boost_FOUND TRUE ) - - if(Boost_MAJOR_VERSION LESS "${Boost_FIND_VERSION_MAJOR}" ) - set( Boost_FOUND FALSE ) - set(_Boost_VERSION_AGE "old") - elseif(Boost_MAJOR_VERSION EQUAL "${Boost_FIND_VERSION_MAJOR}" ) - if(Boost_MINOR_VERSION LESS "${Boost_FIND_VERSION_MINOR}" ) - set( Boost_FOUND FALSE ) - set(_Boost_VERSION_AGE "old") - elseif(Boost_MINOR_VERSION EQUAL "${Boost_FIND_VERSION_MINOR}" ) - if( Boost_FIND_VERSION_PATCH AND Boost_SUBMINOR_VERSION LESS "${Boost_FIND_VERSION_PATCH}" ) - set( Boost_FOUND FALSE ) - set(_Boost_VERSION_AGE "old") - endif() - endif() - endif() - - if (NOT Boost_FOUND) - _Boost_MARK_COMPONENTS_FOUND(OFF) - endif() - - if (Boost_FOUND AND Boost_FIND_VERSION_EXACT) - # If the user requested an exact version of Boost, check - # that. We already know that the Boost version we have is >= the - # requested version. - set(_Boost_VERSION_AGE "new") - - # If the user didn't specify a patchlevel, it's 0. - if (NOT Boost_FIND_VERSION_PATCH) - set(Boost_FIND_VERSION_PATCH 0) - endif () - - # We'll set Boost_FOUND true again if we have an exact version match. - set(Boost_FOUND FALSE) - _Boost_MARK_COMPONENTS_FOUND(OFF) - if(Boost_MAJOR_VERSION EQUAL "${Boost_FIND_VERSION_MAJOR}" ) - if(Boost_MINOR_VERSION EQUAL "${Boost_FIND_VERSION_MINOR}" ) - if(Boost_SUBMINOR_VERSION EQUAL "${Boost_FIND_VERSION_PATCH}" ) - set( Boost_FOUND TRUE ) - _Boost_MARK_COMPONENTS_FOUND(ON) - endif() - endif() - endif() - endif () - - if(NOT Boost_FOUND) - # State that we found a version of Boost that is too new or too old. - set(Boost_ERROR_REASON - "${Boost_ERROR_REASON}\nDetected version of Boost is too ${_Boost_VERSION_AGE}. Requested version was ${Boost_FIND_VERSION_MAJOR}.${Boost_FIND_VERSION_MINOR}") - if (Boost_FIND_VERSION_PATCH) - set(Boost_ERROR_REASON - "${Boost_ERROR_REASON}.${Boost_FIND_VERSION_PATCH}") - endif () - if (NOT Boost_FIND_VERSION_EXACT) - set(Boost_ERROR_REASON "${Boost_ERROR_REASON} (or newer)") - endif () - set(Boost_ERROR_REASON "${Boost_ERROR_REASON}.") - endif () - - # Always check for missing components +# The above setting of Boost_FOUND was based only on the header files. +# Update it for the requested component libraries. +if(Boost_FOUND) + # The headers were found. Check for requested component libs. set(_boost_CHECKED_COMPONENT FALSE) set(_Boost_MISSING_COMPONENTS "") foreach(COMPONENT ${Boost_FIND_COMPONENTS}) @@ -1148,7 +1107,6 @@ if(Boost_INCLUDE_DIR) if(NOT Boost_${COMPONENT}_FOUND) string(TOLOWER ${COMPONENT} COMPONENT) list(APPEND _Boost_MISSING_COMPONENTS ${COMPONENT}) - set( Boost_FOUND FALSE) endif() endforeach() @@ -1157,6 +1115,7 @@ if(Boost_INCLUDE_DIR) endif() if (_Boost_MISSING_COMPONENTS) + set(Boost_FOUND 0) # We were unable to find some libraries, so generate a sensible # error message that lists the libraries we were unable to find. set(Boost_ERROR_REASON @@ -1210,9 +1169,12 @@ if(Boost_INCLUDE_DIR) endif() endif() - else() - set( Boost_FOUND FALSE) + # Boost headers were not found so no components were found. + foreach(COMPONENT ${Boost_FIND_COMPONENTS}) + string(TOUPPER ${COMPONENT} UPPERCOMPONENT) + set(Boost_${UPPERCOMPONENT}_FOUND 0) + endforeach() endif() # ------------------------------------------------------------------------ |