1 files changed, 225 insertions, 0 deletions
diff --git a/Tests/BuildDepends/CMakeLists.txt b/Tests/BuildDepends/CMakeLists.txt
new file mode 100644
index 000000000..5e36d11b4
--- /dev/null
+++ b/Tests/BuildDepends/CMakeLists.txt
@@ -0,0 +1,225 @@
+# this test creates a static library and an executable
+# the source to the library is then changed 
+# and the build is done on the executable and if things
+# are working the executable should relink with the new
+# value.  The subdir Project contains the CMakelists.txt
+# and source files for the test project. 
+cmake_minimum_required (VERSION 2.6)
+project(BuildDepends)
+
+# This entire test takes place during the initial
+# configure step.  It should not run again when the
+# project is built.
+set(CMAKE_SUPPRESS_REGENERATION 1)
+
+# Xcode needs some help with the fancy dependencies in this test.
+if("${CMAKE_GENERATOR}" MATCHES "Xcode")
+  set(HELP_XCODE 1)
+endif("${CMAKE_GENERATOR}" MATCHES "Xcode")
+function(help_xcode_depends)
+  if(HELP_XCODE)
+    file(GLOB_RECURSE MACRO_OBJS
+      ${BuildDepends_BINARY_DIR}/Project/zot_macro_*.o*
+      )
+    if(MACRO_OBJS)
+      message("Helping Xcode by removing objects [${MACRO_OBJS}]")
+      file(REMOVE ${MACRO_OBJS})
+    endif(MACRO_OBJS)
+  endif(HELP_XCODE)
+endfunction(help_xcode_depends)
+
+if("${CMAKE_GENERATOR}" MATCHES "Ninja")
+  set(HELP_NINJA 1) # TODO Why is this needed?
+endif()
+
+# The Intel compiler causes the MSVC linker to crash during
+# incremental linking, so avoid the /INCREMENTAL:YES flag.
+if(WIN32 AND "${CMAKE_CXX_COMPILER_ID}" MATCHES "Intel")
+  set(_cmake_options "-DCMAKE_EXE_LINKER_FLAGS=")
+endif()
+
+if("${CMAKE_GENERATOR}" MATCHES "Make")
+  set(TEST_LINK_DEPENDS ${BuildDepends_BINARY_DIR}/Project/linkdep.txt)
+  file(WRITE ${TEST_LINK_DEPENDS} "1")
+endif()
+list(APPEND _cmake_options "-DTEST_LINK_DEPENDS=${TEST_LINK_DEPENDS}")
+
+list(APPEND _cmake_options "-DCMAKE_FORCE_DEPFILES=1")
+
+file(MAKE_DIRECTORY ${BuildDepends_BINARY_DIR}/Project)
+message("Creating Project/foo.cxx")
+write_file(${BuildDepends_BINARY_DIR}/Project/foo.cxx 
+  "const char* foo() { return \"foo\";}" )
+
+file(WRITE ${BuildDepends_BINARY_DIR}/Project/zot.hxx.in
+  "static const char* zot = \"zot\";\n")
+file(WRITE ${BuildDepends_BINARY_DIR}/Project/zot_custom.hxx.in
+  "static const char* zot_custom = \"zot_custom\";\n")
+file(WRITE ${BuildDepends_BINARY_DIR}/Project/zot_macro_dir.hxx
+  "static const char* zot_macro_dir = \"zot_macro_dir\";\n")
+file(WRITE ${BuildDepends_BINARY_DIR}/Project/zot_macro_tgt.hxx
+  "static const char* zot_macro_tgt = \"zot_macro_tgt\";\n")
+
+help_xcode_depends()
+
+message("Building project first time")
+try_compile(RESULT 
+  ${BuildDepends_BINARY_DIR}/Project
+  ${BuildDepends_SOURCE_DIR}/Project
+  testRebuild
+  CMAKE_FLAGS ${_cmake_options}
+  OUTPUT_VARIABLE OUTPUT)
+if(HELP_XCODE)
+  try_compile(RESULT 
+    ${BuildDepends_BINARY_DIR}/Project
+    ${BuildDepends_SOURCE_DIR}/Project
+    testRebuild
+    OUTPUT_VARIABLE OUTPUT)
+  try_compile(RESULT 
+    ${BuildDepends_BINARY_DIR}/Project
+    ${BuildDepends_SOURCE_DIR}/Project
+    testRebuild
+    OUTPUT_VARIABLE OUTPUT)
+endif(HELP_XCODE)
+
+message("Output from first build:\n${OUTPUT}")
+if(NOT RESULT)
+  message(SEND_ERROR "Could not build test project (1)!")
+endif(NOT RESULT)
+
+set(bar ${BuildDepends_BINARY_DIR}/Project/bar${CMAKE_EXECUTABLE_SUFFIX})
+if(EXISTS 
+    "${BuildDepends_BINARY_DIR}/Project/Debug/bar${CMAKE_EXECUTABLE_SUFFIX}" )
+  message("found debug")
+  set(bar 
+    "${BuildDepends_BINARY_DIR}/Project/Debug/bar${CMAKE_EXECUTABLE_SUFFIX}")
+endif(EXISTS 
+  "${BuildDepends_BINARY_DIR}/Project/Debug/bar${CMAKE_EXECUTABLE_SUFFIX}")
+set(zot ${BuildDepends_BINARY_DIR}/Project/zot${CMAKE_EXECUTABLE_SUFFIX})
+if(EXISTS 
+    "${BuildDepends_BINARY_DIR}/Project/Debug/zot${CMAKE_EXECUTABLE_SUFFIX}" )
+  message("found debug")
+  set(zot 
+    "${BuildDepends_BINARY_DIR}/Project/Debug/zot${CMAKE_EXECUTABLE_SUFFIX}")
+endif(EXISTS 
+  "${BuildDepends_BINARY_DIR}/Project/Debug/zot${CMAKE_EXECUTABLE_SUFFIX}")
+
+message("Running ${bar}  ")
+execute_process(COMMAND ${bar} OUTPUT_VARIABLE out RESULT_VARIABLE runResult)
+string(REGEX REPLACE "[\r\n]" " " out "${out}")
+message("Run result: ${runResult} Output: \"${out}\"")
+
+if("${out}" STREQUAL "foo ")
+  message("Worked!")
+else("${out}" STREQUAL "foo ")
+  message(SEND_ERROR "Project did not initially build properly: ${out}")
+endif("${out}" STREQUAL "foo ")
+
+message("Running ${zot}  ")
+execute_process(COMMAND ${zot} OUTPUT_VARIABLE out RESULT_VARIABLE runResult)
+string(REGEX REPLACE "[\r\n]" " " out "${out}")
+message("Run result: ${runResult} Output: \"${out}\"")
+
+set(VALUE_UNCHANGED "[zot] [zot_custom] [zot_macro_dir] [zot_macro_tgt] ")
+if("${out}" STREQUAL "${VALUE_UNCHANGED}")
+  message("Worked!")
+else("${out}" STREQUAL "${VALUE_UNCHANGED}")
+  message(SEND_ERROR "Project did not initially build properly: ${out}")
+endif("${out}" STREQUAL "${VALUE_UNCHANGED}")
+
+message("Waiting 3 seconds...")
+# any additional argument will cause ${bar} to wait forever
+execute_process(COMMAND ${bar} -infinite TIMEOUT 3 OUTPUT_VARIABLE out)
+
+message("Modifying Project/foo.cxx")
+write_file(${BuildDepends_BINARY_DIR}/Project/foo.cxx
+  "const char* foo() { return \"foo changed\";}" )
+file(WRITE ${BuildDepends_BINARY_DIR}/Project/zot.hxx.in
+  "static const char* zot = \"zot changed\";\n")
+file(WRITE ${BuildDepends_BINARY_DIR}/Project/zot_custom.hxx.in
+  "static const char* zot_custom = \"zot_custom changed\";\n")
+file(WRITE ${BuildDepends_BINARY_DIR}/Project/zot_macro_dir.hxx
+  "static const char* zot_macro_dir = \"zot_macro_dir changed\";\n")
+file(WRITE ${BuildDepends_BINARY_DIR}/Project/zot_macro_tgt.hxx
+  "static const char* zot_macro_tgt = \"zot_macro_tgt changed\";\n")
+
+if(TEST_LINK_DEPENDS)
+  file(WRITE ${TEST_LINK_DEPENDS} "2")
+endif()
+
+help_xcode_depends()
+
+message("Building project second time")
+try_compile(RESULT 
+  ${BuildDepends_BINARY_DIR}/Project
+  ${BuildDepends_SOURCE_DIR}/Project
+  testRebuild
+  CMAKE_FLAGS ${_cmake_options}
+  OUTPUT_VARIABLE OUTPUT)
+
+# Xcode is in serious need of help here
+if(HELP_XCODE OR HELP_NINJA)
+  try_compile(RESULT 
+    ${BuildDepends_BINARY_DIR}/Project
+    ${BuildDepends_SOURCE_DIR}/Project
+    testRebuild
+    OUTPUT_VARIABLE OUTPUT)
+  try_compile(RESULT 
+    ${BuildDepends_BINARY_DIR}/Project
+    ${BuildDepends_SOURCE_DIR}/Project
+    testRebuild
+    OUTPUT_VARIABLE OUTPUT)
+endif()
+
+message("Output from second build:\n${OUTPUT}")
+if(NOT RESULT)
+  message(SEND_ERROR "Could not build test project (2)!")
+endif(NOT RESULT)
+if(EXISTS 
+    "${BuildDepends_BINARY_DIR}/Project/Debug/bar${CMAKE_EXECUTABLE_SUFFIX}" )
+  message("found debug")
+endif(EXISTS 
+  "${BuildDepends_BINARY_DIR}/Project/Debug/bar${CMAKE_EXECUTABLE_SUFFIX}")
+if(EXISTS 
+    "${BuildDepends_BINARY_DIR}/Project/Debug/zot${CMAKE_EXECUTABLE_SUFFIX}" )
+  message("found debug")
+endif(EXISTS 
+  "${BuildDepends_BINARY_DIR}/Project/Debug/zot${CMAKE_EXECUTABLE_SUFFIX}")
+
+message("Running ${bar}  ")
+execute_process(COMMAND ${bar} OUTPUT_VARIABLE out RESULT_VARIABLE runResult)
+string(REGEX REPLACE "[\r\n]" " " out "${out}")
+message("Run result: ${runResult} Output: \"${out}\"")
+
+if("${out}" STREQUAL "foo changed ")
+  message("Worked!")
+else("${out}" STREQUAL "foo changed ")
+  message(SEND_ERROR "Project did not rebuild properly!")
+endif("${out}" STREQUAL "foo changed ")
+
+message("Running ${zot}  ")
+execute_process(COMMAND ${zot} OUTPUT_VARIABLE out RESULT_VARIABLE runResult)
+string(REGEX REPLACE "[\r\n]" " " out "${out}")
+message("Run result: ${runResult} Output: \"${out}\"")
+
+set(VALUE_CHANGED
+  "[zot changed] [zot_custom changed] [zot_macro_dir changed] [zot_macro_tgt changed] "
+  )
+if("${out}" STREQUAL "${VALUE_CHANGED}")
+  message("Worked!")
+else("${out}" STREQUAL "${VALUE_CHANGED}")
+  message(SEND_ERROR "Project did not rebuild properly!")
+endif("${out}" STREQUAL "${VALUE_CHANGED}")
+
+if(TEST_LINK_DEPENDS)
+  set(linkdep ${BuildDepends_BINARY_DIR}/Project/linkdep${CMAKE_EXECUTABLE_SUFFIX})
+  if(${linkdep} IS_NEWER_THAN ${TEST_LINK_DEPENDS})
+    message("LINK_DEPENDS worked")
+  else()
+    message(SEND_ERROR "LINK_DEPENDS failed.  Executable
+  ${linkdep}
+is not newer than dependency
+  ${TEST_LINK_DEPENDS}
+")
+  endif()
+endif()