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Define LINK_DEPENDS target property (#11406)

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Custom Makefile link rules may need to depend on linker scripts.  Define
this property to allow user-specified link-time dependencies.
This commit is contained in:
Brad King 2010-11-05 09:05:08 -04:00
parent 07cfa57ec5
commit 95f149e61f
5 changed files with 51 additions and 0 deletions
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7
Source/cmMakefileTargetGenerator.cxx
View File

@ -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);
}
}
//----------------------------------------------------------------------------

12
Source/cmTarget.cxx
View File

@ -531,6 +531,18 @@ void cmTarget::DefineProperties(cmake *cm)
"Use the MAP_IMPORTED_CONFIG_<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.",

23
Tests/BuildDepends/CMakeLists.txt
View File

@ -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()

5
Tests/BuildDepends/Project/CMakeLists.txt
View File

@ -80,3 +80,8 @@ set_property(
DIRECTORY
PROPERTY IMPLICIT_DEPENDS_INCLUDE_TRANSFORM "ZOT_DIR(%)=<zot_%_dir.hxx>"
)
if(TEST_LINK_DEPENDS)
add_executable(linkdep linkdep.cxx)
set_property(TARGET linkdep PROPERTY LINK_DEPENDS ${TEST_LINK_DEPENDS})
endif()

4
Tests/BuildDepends/Project/linkdep.cxx Normal file
View File

@ -0,0 +1,4 @@
int main()
{
return 0;
}