diff options
| -rw-r--r-- | Tests/OutOfSource/OutOfSourceSubdir/CMakeLists.txt | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/Tests/OutOfSource/OutOfSourceSubdir/CMakeLists.txt b/Tests/OutOfSource/OutOfSourceSubdir/CMakeLists.txt index 4daf425..c5eb71e 100644 --- a/Tests/OutOfSource/OutOfSourceSubdir/CMakeLists.txt +++ b/Tests/OutOfSource/OutOfSourceSubdir/CMakeLists.txt @@ -9,8 +9,20 @@ IF ("${PROJECT_SOURCE_DIR}" STREQUAL "${ANOTHER_PROJ_SOURCE_DIR}") # test cmLocalGenerator::CreateSafeUniqueObjectFileName. GET_FILENAME_COMPONENT(DEEPDIR ${OutOfSource_BINARY_DIR}/../OutOfSourceDeep/deeper ABSOLUTE) - # MAXPATH = 250 less 25 for /and/deeper/simple.cxx part and small safety - MATH(EXPR MAXPATH "250 - 25") + + # The maximum allowed path length on Windows is near this value. + SET(MAXPATH "250") + + # VS8 adds "OutOfSource/SubDir/OutOfSourceSubdir/../../../" to the + # path of the source file for no good reason. Reduce the length + # limit by 46 characters to account for it. It should still be long + # enough to require special object file name conversion. + IF(${CMAKE_GENERATOR} MATCHES "Visual Studio 8") + MATH(EXPR MAXPATH "${MAXPATH} - 46") + ENDIF(${CMAKE_GENERATOR} MATCHES "Visual Studio 8") + + # MAXPATH less 25 for last /and/deeper/simple.cxx part and small safety + MATH(EXPR MAXPATH "${MAXPATH} - 25") STRING(LENGTH "${DEEPDIR}" DEEPDIR_LEN) WHILE("${DEEPDIR_LEN}" LESS "${MAXPATH}") SET(DEEPDIR ${DEEPDIR}/and/deeper) |