3 files changed, 25 insertions, 1 deletions
diff --git a/Tests/OutOfSource/OutOfSourceSubdir/CMakeLists.txt b/Tests/OutOfSource/OutOfSourceSubdir/CMakeLists.txt
index bbdaa55..4daf425 100644
--- a/Tests/OutOfSource/OutOfSourceSubdir/CMakeLists.txt
+++ b/Tests/OutOfSource/OutOfSourceSubdir/CMakeLists.txt
@@ -2,8 +2,26 @@ INCLUDE_DIRECTORIES(${CMAKE_CURRENT_BINARY_DIR})
 
 IF ("${PROJECT_SOURCE_DIR}" STREQUAL "${ANOTHER_PROJ_SOURCE_DIR}")
   SET(BUILD_SHARED_LIBS 1)
+
+  # Construct a source file outside the tree whose full path is close to
+  # the path length limit.  This will cause the full path to the object
+  # file in the build tree to exceed the maximum path length which will
+  # test cmLocalGenerator::CreateSafeUniqueObjectFileName.
+  GET_FILENAME_COMPONENT(DEEPDIR
+    ${OutOfSource_BINARY_DIR}/../OutOfSourceDeep/deeper ABSOLUTE)
+  # MAXPATH = 250 less 25 for /and/deeper/simple.cxx part and small safety
+  MATH(EXPR MAXPATH "250 - 25")
+  STRING(LENGTH "${DEEPDIR}" DEEPDIR_LEN)
+  WHILE("${DEEPDIR_LEN}" LESS "${MAXPATH}")
+    SET(DEEPDIR ${DEEPDIR}/and/deeper)
+    STRING(LENGTH "${DEEPDIR}" DEEPDIR_LEN)
+  ENDWHILE("${DEEPDIR_LEN}" LESS "${MAXPATH}")
+  SET(DEEPSRC ${DEEPDIR}/simple.cxx)
+  STRING(LENGTH "${DEEPSRC}" DEEPSRC_LEN)
+  CONFIGURE_FILE(simple.cxx.in ${DEEPSRC} COPYONLY)
+
   ADD_LIBRARY(testlib testlib.cxx)
-  ADD_EXECUTABLE (simple simple.cxx ../simple.cxx)
+  ADD_EXECUTABLE (simple simple.cxx ../simple.cxx ${DEEPSRC})
   TARGET_LINK_LIBRARIES(simple testlib outlib)
 ENDIF ("${PROJECT_SOURCE_DIR}" STREQUAL "${ANOTHER_PROJ_SOURCE_DIR}")
 
diff --git a/Tests/OutOfSource/OutOfSourceSubdir/simple.cxx b/Tests/OutOfSource/OutOfSourceSubdir/simple.cxx
index 124b7f9..0be7195 100644
--- a/Tests/OutOfSource/OutOfSourceSubdir/simple.cxx
+++ b/Tests/OutOfSource/OutOfSourceSubdir/simple.cxx
@@ -5,6 +5,7 @@
 #include "testdp.h"
 
 extern int simple();
+extern int simple2();
 extern "C" int outlib();
 
 int main ()
@@ -26,5 +27,9 @@ int main ()
     {
     return -4;
     }
+  if(simple2() != 789)
+    {
+    return -5;
+    }
   return 0;
 }
diff --git a/Tests/OutOfSource/OutOfSourceSubdir/simple.cxx.in b/Tests/OutOfSource/OutOfSourceSubdir/simple.cxx.in
new file mode 100644
index 0000000..8339b7c
--- /dev/null
+++ b/Tests/OutOfSource/OutOfSourceSubdir/simple.cxx.in
@@ -0,0 +1 @@
+int simple2() { return 789; }