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FindEXPAT: support version number

This commit is contained in:
Rolf Eike Beer 2012-01-23 20:53:22 +01:00
parent 86c9604f98
commit 7f81c48bdd
1 changed files with 23 additions and 1 deletions
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24
Modules/FindEXPAT.cmake
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@ -24,10 +24,32 @@ FIND_PATH(EXPAT_INCLUDE_DIR NAMES expat.h)
# Look for the library.
FIND_LIBRARY(EXPAT_LIBRARY NAMES expat libexpat)
if (EXPAT_INCLUDE_DIR AND EXISTS "${EXPAT_INCLUDE_DIR}/expat.h")
file(STRINGS "${EXPAT_INCLUDE_DIR}/expat.h" expat_version_str
REGEX "^#[\t ]*define[\t ]+XML_(MAJOR|MINOR|MICRO)_VERSION[\t ]+[0-9]+$")
unset(EXPAT_VERSION_STRING)
foreach(VPART MAJOR MINOR MICRO)
foreach(VLINE ${expat_version_str})
if(VLINE MATCHES "^#[\t ]*define[\t ]+XML_${VPART}_VERSION")
string(REGEX REPLACE "^#[\t ]*define[\t ]+XML_${VPART}_VERSION[\t ]+([0-9]+)$" "\\1"
EXPAT_VERSION_PART "${VLINE}")
if(EXPAT_VERSION_STRING)
set(EXPAT_VERSION_STRING "${EXPAT_VERSION_STRING}.${EXPAT_VERSION_PART}")
else(EXPAT_VERSION_STRING)
set(EXPAT_VERSION_STRING "${EXPAT_VERSION_PART}")
endif(EXPAT_VERSION_STRING)
endif()
endforeach(VLINE)
endforeach(VPART)
endif (EXPAT_INCLUDE_DIR AND EXISTS "${EXPAT_INCLUDE_DIR}/expat.h")
# handle the QUIETLY and REQUIRED arguments and set EXPAT_FOUND to TRUE if
# all listed variables are TRUE
INCLUDE(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(EXPAT DEFAULT_MSG EXPAT_LIBRARY EXPAT_INCLUDE_DIR)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(EXPAT
REQUIRED_VARS EXPAT_LIBRARY EXPAT_INCLUDE_DIR
VERSION_VAR EXPAT_VERSION_STRING)
# Copy the results to the output variables.
IF(EXPAT_FOUND)