diff --git a/Source/cmMakefileTargetGenerator.cxx b/Source/cmMakefileTargetGenerator.cxx index 0c150df36..9153f3a6b 100644 --- a/Source/cmMakefileTargetGenerator.cxx +++ b/Source/cmMakefileTargetGenerator.cxx @@ -1534,6 +1534,13 @@ void cmMakefileTargetGenerator { depends.push_back(*obj); } + + // Add user-specified dependencies. + if(const char* linkDepends = + this->Target->GetProperty("LINK_DEPENDS")) + { + cmSystemTools::ExpandListArgument(linkDepends, depends); + } } //---------------------------------------------------------------------------- diff --git a/Source/cmTarget.cxx b/Source/cmTarget.cxx index 538025732..ca61b1fc3 100644 --- a/Source/cmTarget.cxx +++ b/Source/cmTarget.cxx @@ -531,6 +531,18 @@ void cmTarget::DefineProperties(cmake *cm) "Use the MAP_IMPORTED_CONFIG_ property to map imported " "configurations explicitly."); + cm->DefineProperty + ("LINK_DEPENDS", cmProperty::TARGET, + "Additional files on which a target binary depends for linking.", + "Specifies a semicolon-separated list of full-paths to files on which " + "the link rule for this target depends. " + "The target binary will be linked if any of the named files is newer " + "than it." + "\n" + "This property is ignored by non-Makefile generators. " + "It is intended to specify dependencies on \"linker scripts\" for " + "custom Makefile link rules."); + cm->DefineProperty ("LINK_INTERFACE_LIBRARIES", cmProperty::TARGET, "List public interface libraries for a shared library or executable.", diff --git a/Tests/BuildDepends/CMakeLists.txt b/Tests/BuildDepends/CMakeLists.txt index 871464086..31392b5e4 100644 --- a/Tests/BuildDepends/CMakeLists.txt +++ b/Tests/BuildDepends/CMakeLists.txt @@ -34,6 +34,12 @@ 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}") + file(MAKE_DIRECTORY ${BuildDepends_BINARY_DIR}/Project) message("Creating Project/foo.cxx") write_file(${BuildDepends_BINARY_DIR}/Project/foo.cxx @@ -131,6 +137,10 @@ file(WRITE ${BuildDepends_BINARY_DIR}/Project/zot_macro_dir.hxx 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 ${TEST_LINK_DEPENDS} "2") +endif() + help_xcode_depends() message("Building project second time") @@ -194,3 +204,16 @@ if("${out}" STREQUAL "${VALUE_CHANGED}") else("${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() diff --git a/Tests/BuildDepends/Project/CMakeLists.txt b/Tests/BuildDepends/Project/CMakeLists.txt index e9d129682..70a2f3701 100644 --- a/Tests/BuildDepends/Project/CMakeLists.txt +++ b/Tests/BuildDepends/Project/CMakeLists.txt @@ -80,3 +80,8 @@ set_property( DIRECTORY PROPERTY IMPLICIT_DEPENDS_INCLUDE_TRANSFORM "ZOT_DIR(%)=" ) + +if(TEST_LINK_DEPENDS) + add_executable(linkdep linkdep.cxx) + set_property(TARGET linkdep PROPERTY LINK_DEPENDS ${TEST_LINK_DEPENDS}) +endif() diff --git a/Tests/BuildDepends/Project/linkdep.cxx b/Tests/BuildDepends/Project/linkdep.cxx new file mode 100644 index 000000000..f8b643afb --- /dev/null +++ b/Tests/BuildDepends/Project/linkdep.cxx @@ -0,0 +1,4 @@ +int main() +{ + return 0; +}