[Cmake-commits] CMake branch, next, updated. v3.6.0-rc2-350-gc3e9f73
Bill Hoffman
bill.hoffman at kitware.com
Thu Jun 16 14:13:26 EDT 2016
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- Log -----------------------------------------------------------------
https://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=c3e9f7396581ff316be231fdd85bb0dfd2503596
commit c3e9f7396581ff316be231fdd85bb0dfd2503596
Merge: 6ba4954 d0adee7
Author: Bill Hoffman <bill.hoffman at kitware.com>
AuthorDate: Thu Jun 16 14:13:24 2016 -0400
Commit: CMake Topic Stage <kwrobot at kitware.com>
CommitDate: Thu Jun 16 14:13:24 2016 -0400
Merge topic 'link_what_you_use' into next
d0adee7c Add support for ldd -u -r as link what you use tool.
diff --cc Source/cmMakefileExecutableTargetGenerator.cxx
index f2c7bc8,9c34125..ca0fdcb
--- a/Source/cmMakefileExecutableTargetGenerator.cxx
+++ b/Source/cmMakefileExecutableTargetGenerator.cxx
@@@ -187,10 -187,13 +187,14 @@@ void cmMakefileExecutableTargetGenerato
this->LocalGenerator->AppendFlags(
linkFlags, this->Makefile->GetDefinition(export_flag_var));
}
+ if(this->GeneratorTarget->GetProperty("LINK_WHAT_YOU_USE")) {
+ this->LocalGenerator->AppendFlags(linkFlags,
+ " -Wl,--no-as-needed");
+ }
// Add language feature flags.
- this->AddFeatureFlags(flags, linkLanguage);
+ this->LocalGenerator->AddFeatureFlags(flags, linkLanguage,
+ this->GeneratorTarget);
this->LocalGenerator->AddArchitectureFlags(flags, this->GeneratorTarget,
linkLanguage, this->ConfigName);
https://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=d0adee7c496d08e8702a378ab841989568cd0f27
commit d0adee7c496d08e8702a378ab841989568cd0f27
Author: Bill Hoffman <bill.hoffman at kitware.com>
AuthorDate: Thu Jun 2 18:08:30 2016 -0400
Commit: Bill Hoffman <bill.hoffman at kitware.com>
CommitDate: Thu Jun 16 14:12:20 2016 -0400
Add support for ldd -u -r as link what you use tool.
diff --git a/Help/manual/cmake-properties.7.rst b/Help/manual/cmake-properties.7.rst
index 3403dcd..6a7560a 100644
--- a/Help/manual/cmake-properties.7.rst
+++ b/Help/manual/cmake-properties.7.rst
@@ -217,6 +217,7 @@ Properties on Targets
/prop_tgt/LINK_LIBRARIES
/prop_tgt/LINK_SEARCH_END_STATIC
/prop_tgt/LINK_SEARCH_START_STATIC
+ /prop_tgt/LINK_WHAT_YOU_USE
/prop_tgt/LOCATION_CONFIG
/prop_tgt/LOCATION
/prop_tgt/MACOSX_BUNDLE_INFO_PLIST
diff --git a/Help/manual/cmake-variables.7.rst b/Help/manual/cmake-variables.7.rst
index 85b8eae..36d00dc 100644
--- a/Help/manual/cmake-variables.7.rst
+++ b/Help/manual/cmake-variables.7.rst
@@ -275,6 +275,7 @@ Variables that Control the Build
/variable/CMAKE_LINK_INTERFACE_LIBRARIES
/variable/CMAKE_LINK_LIBRARY_FILE_FLAG
/variable/CMAKE_LINK_LIBRARY_FLAG
+ /variable/CMAKE_LINK_WHAT_YOU_USE
/variable/CMAKE_MACOSX_BUNDLE
/variable/CMAKE_MACOSX_RPATH
/variable/CMAKE_MAP_IMPORTED_CONFIG_CONFIG
diff --git a/Help/prop_tgt/LINK_WHAT_YOU_USE.rst b/Help/prop_tgt/LINK_WHAT_YOU_USE.rst
new file mode 100644
index 0000000..32d6edb
--- /dev/null
+++ b/Help/prop_tgt/LINK_WHAT_YOU_USE.rst
@@ -0,0 +1,15 @@
+LINK_WHAT_YOU_USE
+---------------------------
+
+This is a boolean option that when set to ``TRUE`` will automatically run
+``ldd -r -u`` on the target after it is linked. In addition, the linker flag
+``-Wl,--no-as-needed`` will be passed to the target with the link command so
+that all libraries specified on the command line will be linked into the
+target. This will result in the link producing a list of libraries that
+provide no symbols used by this target but are being linked to it.
+This is only applicable to executable and shared library targets and
+will only work when ld and ldd accept the flags used.
+
+This property is initialized by the value of
+the :variable:`CMAKE_LINK_WHAT_YOU_USE` variable if it is set
+when a target is created.
diff --git a/Help/variable/CMAKE_LINK_WHAT_YOU_USE.rst b/Help/variable/CMAKE_LINK_WHAT_YOU_USE.rst
new file mode 100644
index 0000000..90c4d3f
--- /dev/null
+++ b/Help/variable/CMAKE_LINK_WHAT_YOU_USE.rst
@@ -0,0 +1,6 @@
+CMAKE_LINK_WHAT_YOU_USE
+---------------------------------
+
+Default value for :prop_tgt:`LINK_WHAT_YOU_USE` target property.
+This variable is used to initialize the property on each target as it is
+created.
diff --git a/Source/cmMakefileExecutableTargetGenerator.cxx b/Source/cmMakefileExecutableTargetGenerator.cxx
index 9d42257..9c34125 100644
--- a/Source/cmMakefileExecutableTargetGenerator.cxx
+++ b/Source/cmMakefileExecutableTargetGenerator.cxx
@@ -187,6 +187,10 @@ void cmMakefileExecutableTargetGenerator::WriteExecutableRule(bool relink)
this->LocalGenerator->AppendFlags(
linkFlags, this->Makefile->GetDefinition(export_flag_var));
}
+ if(this->GeneratorTarget->GetProperty("LINK_WHAT_YOU_USE")) {
+ this->LocalGenerator->AppendFlags(linkFlags,
+ " -Wl,--no-as-needed");
+ }
// Add language feature flags.
this->AddFeatureFlags(flags, linkLanguage);
@@ -356,6 +360,16 @@ void cmMakefileExecutableTargetGenerator::WriteExecutableRule(bool relink)
vars.LinkFlags = linkFlags.c_str();
vars.Manifests = manifests.c_str();
+ if(this->GeneratorTarget->GetProperty("LINK_WHAT_YOU_USE")) {
+ std::string cmakeCommand =
+ this->Convert(
+ cmSystemTools::GetCMakeCommand(), cmLocalGenerator::NONE,
+ cmLocalGenerator::SHELL);
+ cmakeCommand += " -E __run_iwyu --lwyu=";
+ cmakeCommand += targetOutPathReal;
+ real_link_commands.push_back(cmakeCommand);
+ }
+
// Expand placeholders in the commands.
this->LocalGenerator->TargetImplib = targetOutPathImport;
for (std::vector<std::string>::iterator i = real_link_commands.begin();
diff --git a/Source/cmMakefileLibraryTargetGenerator.cxx b/Source/cmMakefileLibraryTargetGenerator.cxx
index 128291d..2429016 100644
--- a/Source/cmMakefileLibraryTargetGenerator.cxx
+++ b/Source/cmMakefileLibraryTargetGenerator.cxx
@@ -163,6 +163,10 @@ void cmMakefileLibraryTargetGenerator::WriteSharedLibraryRules(bool relink)
extraFlags, "CMAKE_SHARED_LINKER_FLAGS", this->ConfigName);
this->AddModuleDefinitionFlag(extraFlags);
+ if(this->GeneratorTarget->GetProperty("LINK_WHAT_YOU_USE")) {
+ this->LocalGenerator->AppendFlags(extraFlags,
+ " -Wl,--no-as-needed");
+ }
this->WriteLibraryRules(linkRuleVar, extraFlags, relink);
}
@@ -682,6 +686,16 @@ void cmMakefileLibraryTargetGenerator::WriteLibraryRules(
// Get the set of commands.
std::string linkRule = this->GetLinkRule(linkRuleVar);
cmSystemTools::ExpandListArgument(linkRule, real_link_commands);
+ if(this->GeneratorTarget->GetProperty("LINK_WHAT_YOU_USE") &&
+ (this->GeneratorTarget->GetType() == cmState::SHARED_LIBRARY)) {
+ std::string cmakeCommand =
+ this->Convert(
+ cmSystemTools::GetCMakeCommand(), cmLocalGenerator::NONE,
+ cmLocalGenerator::SHELL);
+ cmakeCommand += " -E __run_iwyu --lwyu=";
+ cmakeCommand += targetOutPathReal;
+ real_link_commands.push_back(cmakeCommand);
+ }
// Expand placeholders.
for (std::vector<std::string>::iterator i = real_link_commands.begin();
@@ -711,6 +725,7 @@ void cmMakefileLibraryTargetGenerator::WriteLibraryRules(
commands.insert(commands.end(), commands1.begin(), commands1.end());
commands1.clear();
+
// Add a rule to create necessary symlinks for the library.
// Frameworks are handled by cmOSXBundleGenerator.
if (targetOutPath != targetOutPathReal &&
@@ -728,6 +743,7 @@ void cmMakefileLibraryTargetGenerator::WriteLibraryRules(
commands.insert(commands.end(), commands1.begin(), commands1.end());
commands1.clear();
}
+
// Add the post-build rules when building but not when relinking.
if (!relink) {
this->LocalGenerator->AppendCustomCommands(
diff --git a/Source/cmNinjaNormalTargetGenerator.cxx b/Source/cmNinjaNormalTargetGenerator.cxx
index 3e91545..d0e48d5 100644
--- a/Source/cmNinjaNormalTargetGenerator.cxx
+++ b/Source/cmNinjaNormalTargetGenerator.cxx
@@ -295,6 +295,22 @@ std::vector<std::string> cmNinjaNormalTargetGenerator::ComputeLinkCmd()
const char* linkCmd = mf->GetDefinition(linkCmdVar);
if (linkCmd) {
cmSystemTools::ExpandListArgument(linkCmd, linkCmds);
+ if( this->GetGeneratorTarget()->GetProperty("LINK_WHAT_YOU_USE")) {
+ std::string cmakeCommand =
+ this->GetLocalGenerator()->ConvertToOutputFormat(
+ cmSystemTools::GetCMakeCommand(), cmLocalGenerator::SHELL);
+ cmakeCommand += " -E __run_iwyu --lwyu=";
+ cmGeneratorTarget& gt = *this->GetGeneratorTarget();
+ const std::string cfgName = this->GetConfigName();
+ std::string targetOutput = ConvertToNinjaPath(gt.GetFullPath(cfgName));
+ std::string targetOutputReal =
+ this->ConvertToNinjaPath(gt.GetFullPath(cfgName,
+ /*implib=*/false,
+ /*realpath=*/true));
+ cmakeCommand += targetOutputReal;
+ cmakeCommand += " || true";
+ linkCmds.push_back(cmakeCommand);
+ }
return linkCmds;
}
}
@@ -467,6 +483,10 @@ void cmNinjaNormalTargetGenerator::WriteLinkStatement()
vars["MANIFESTS"] = this->GetManifests();
vars["LINK_PATH"] = frameworkPath + linkPath;
+ std::string lwyuFlags;
+ if(genTarget.GetProperty("LINK_WHAT_YOU_USE")) {
+ lwyuFlags = " -Wl,--no-as-needed";
+ }
// Compute architecture specific link flags. Yes, these go into a different
// variable for executables, probably due to a mistake made when duplicating
@@ -474,16 +494,17 @@ void cmNinjaNormalTargetGenerator::WriteLinkStatement()
if (targetType == cmState::EXECUTABLE) {
std::string t = vars["FLAGS"];
localGen.AddArchitectureFlags(t, &genTarget, TargetLinkLanguage, cfgName);
+ t += lwyuFlags;
vars["FLAGS"] = t;
} else {
std::string t = vars["ARCH_FLAGS"];
localGen.AddArchitectureFlags(t, &genTarget, TargetLinkLanguage, cfgName);
vars["ARCH_FLAGS"] = t;
t = "";
+ t += lwyuFlags;
localGen.AddLanguageFlags(t, TargetLinkLanguage, cfgName);
vars["LANGUAGE_COMPILE_FLAGS"] = t;
}
-
if (this->GetGeneratorTarget()->HasSOName(cfgName)) {
vars["SONAME_FLAG"] = mf->GetSONameFlag(this->TargetLinkLanguage);
vars["SONAME"] = this->TargetNameSO;
@@ -607,7 +628,6 @@ void cmNinjaNormalTargetGenerator::WriteLinkStatement()
vars["POST_BUILD"] = ":";
symlinkVars["POST_BUILD"] = postBuildCmdLine;
}
-
cmGlobalNinjaGenerator& globalGen = *this->GetGlobalGenerator();
int commandLineLengthLimit = -1;
diff --git a/Source/cmTarget.cxx b/Source/cmTarget.cxx
index f435a1d..8327af2 100644
--- a/Source/cmTarget.cxx
+++ b/Source/cmTarget.cxx
@@ -139,6 +139,7 @@ void cmTarget::SetMakefile(cmMakefile* mf)
this->SetPropertyDefault("C_CLANG_TIDY", 0);
this->SetPropertyDefault("C_COMPILER_LAUNCHER", 0);
this->SetPropertyDefault("C_INCLUDE_WHAT_YOU_USE", 0);
+ this->SetPropertyDefault("LINK_WHAT_YOU_USE", 0);
this->SetPropertyDefault("C_STANDARD", 0);
this->SetPropertyDefault("C_STANDARD_REQUIRED", 0);
this->SetPropertyDefault("C_EXTENSIONS", 0);
diff --git a/Source/cmcmd.cxx b/Source/cmcmd.cxx
index 535dead..e5b8491 100644
--- a/Source/cmcmd.cxx
+++ b/Source/cmcmd.cxx
@@ -271,6 +271,7 @@ int cmcmd::ExecuteCMakeCommand(std::vector<std::string>& args)
std::string iwyu;
std::string tidy;
std::string sourceFile;
+ std::string lwyu;
for (std::string::size_type cc = 2; cc < args.size(); cc++) {
std::string const& arg = args[cc];
if (arg == "--") {
@@ -281,6 +282,8 @@ int cmcmd::ExecuteCMakeCommand(std::vector<std::string>& args)
tidy = arg.substr(7);
} else if (doing_options && cmHasLiteralPrefix(arg, "--source=")) {
sourceFile = arg.substr(9);
+ } else if (doing_options && cmHasLiteralPrefix(arg, "--lwyu=")) {
+ lwyu = arg.substr(7);
} else if (doing_options) {
std::cerr << "__run_iwyu given unknown argument: " << arg << "\n";
return 1;
@@ -288,7 +291,7 @@ int cmcmd::ExecuteCMakeCommand(std::vector<std::string>& args)
orig_cmd.push_back(arg);
}
}
- if (tidy.empty() && iwyu.empty()) {
+ if (tidy.empty() && iwyu.empty() && lwyu.empty()) {
std::cerr << "__run_iwyu missing --tidy= or --iwyu=\n";
return 1;
}
@@ -296,7 +299,7 @@ int cmcmd::ExecuteCMakeCommand(std::vector<std::string>& args)
std::cerr << "__run_iwyu --tidy= requires --source=\n";
return 1;
}
- if (orig_cmd.empty()) {
+ if (orig_cmd.empty() && lwyu.empty()) {
std::cerr << "__run_iwyu missing compile command after --\n";
return 1;
}
@@ -345,13 +348,36 @@ int cmcmd::ExecuteCMakeCommand(std::vector<std::string>& args)
std::cerr << "Error running '" << tidy_cmd[0] << "'\n";
return 1;
}
-
// Output the stdout from clang-tidy to stderr
std::cerr << stdOut;
}
+ if (!lwyu.empty()) {
+ // Construct the ldd -r -u (link what you use lwyu) command line
+ // ldd -u -r lwuy target
+ std::vector<std::string> lwyu_cmd;
+ lwyu_cmd.push_back("ldd");
+ lwyu_cmd.push_back("-u");
+ lwyu_cmd.push_back("-r");
+ lwyu_cmd.push_back(lwyu);
+
+ // Run the ldd -u -r command line.
+ // Capture its stdout and hide its stderr.
+ std::string stdOut;
+ if (!cmSystemTools::RunSingleCommand(lwyu_cmd, &stdOut, 0, &ret, 0,
+ cmSystemTools::OUTPUT_NONE)) {
+ std::cerr << "Error running '" << lwyu_cmd[0] << "'\n";
+ return 1;
+ }
+ // Output the stdout from ldd -r -u to stderr
+ // Warn if lwyu reported anything.
+ if (stdOut.find("Unused direct dependencies:") != stdOut.npos) {
+ std::cerr << "Warning: " << stdOut;
+ }
+ }
+ ret = 0;
// Now run the real compiler command and return its result value.
- if (!cmSystemTools::RunSingleCommand(
+ if (lwyu.empty() && !cmSystemTools::RunSingleCommand(
orig_cmd, 0, 0, &ret, 0, cmSystemTools::OUTPUT_PASSTHROUGH)) {
std::cerr << "Error running '" << orig_cmd[0] << "'\n";
return 1;
diff --git a/Tests/RunCMake/CMakeLists.txt b/Tests/RunCMake/CMakeLists.txt
index d16e5e7..b6d1c38 100644
--- a/Tests/RunCMake/CMakeLists.txt
+++ b/Tests/RunCMake/CMakeLists.txt
@@ -307,6 +307,14 @@ if(CMAKE_OSX_ARCHITECTURES AND XCODE AND NOT "${XCODE_VERSION}" MATCHES "^[^12]"
endif()
if("${CMAKE_GENERATOR}" MATCHES "Make|Ninja")
+ if(UNIX AND NOT CYGWIN)
+ execute_process(COMMAND ldd --help
+ OUTPUT_VARIABLE LDD_HELP)
+ if("${LDD_HELP}" MATCHES
+ "(-r, --function-relocs.*process data and function relocations.*-u, --unused.*print unused direct dependencies)")
+ add_RunCMake_test(LinkWhatYouUse)
+ endif()
+ endif()
add_executable(pseudo_tidy pseudo_tidy.c)
add_executable(pseudo_iwyu pseudo_iwyu.c)
add_RunCMake_test(ClangTidy -DPSEUDO_TIDY=$<TARGET_FILE:pseudo_tidy>)
diff --git a/Tests/RunCMake/LinkWhatYouUse/C-Build-stdout.txt b/Tests/RunCMake/LinkWhatYouUse/C-Build-stdout.txt
new file mode 100644
index 0000000..95eafad
--- /dev/null
+++ b/Tests/RunCMake/LinkWhatYouUse/C-Build-stdout.txt
@@ -0,0 +1,2 @@
+.*Warning: Unused direct dependencies.*
+.*libm.*
diff --git a/Tests/RunCMake/LinkWhatYouUse/C-launch-Build-stdout.txt b/Tests/RunCMake/LinkWhatYouUse/C-launch-Build-stdout.txt
new file mode 100644
index 0000000..95eafad
--- /dev/null
+++ b/Tests/RunCMake/LinkWhatYouUse/C-launch-Build-stdout.txt
@@ -0,0 +1,2 @@
+.*Warning: Unused direct dependencies.*
+.*libm.*
diff --git a/Tests/RunCMake/LinkWhatYouUse/C-launch.cmake b/Tests/RunCMake/LinkWhatYouUse/C-launch.cmake
new file mode 100644
index 0000000..e66ca20
--- /dev/null
+++ b/Tests/RunCMake/LinkWhatYouUse/C-launch.cmake
@@ -0,0 +1,3 @@
+set(CTEST_USE_LAUNCHERS 1)
+include(CTestUseLaunchers)
+include(C.cmake)
diff --git a/Tests/RunCMake/LinkWhatYouUse/C.cmake b/Tests/RunCMake/LinkWhatYouUse/C.cmake
new file mode 100644
index 0000000..4c3f428
--- /dev/null
+++ b/Tests/RunCMake/LinkWhatYouUse/C.cmake
@@ -0,0 +1,4 @@
+enable_language(C)
+set(CMAKE_LINK_WHAT_YOU_USE TRUE)
+add_executable(main main.c)
+target_link_libraries(main m)
diff --git a/Tests/RunCMake/LinkWhatYouUse/CMakeLists.txt b/Tests/RunCMake/LinkWhatYouUse/CMakeLists.txt
new file mode 100644
index 0000000..18dfd26
--- /dev/null
+++ b/Tests/RunCMake/LinkWhatYouUse/CMakeLists.txt
@@ -0,0 +1,3 @@
+cmake_minimum_required(VERSION 3.2)
+project(${RunCMake_TEST} NONE)
+include(${RunCMake_TEST}.cmake)
diff --git a/Tests/RunCMake/LinkWhatYouUse/CXX-Build-stdout.txt b/Tests/RunCMake/LinkWhatYouUse/CXX-Build-stdout.txt
new file mode 100644
index 0000000..95eafad
--- /dev/null
+++ b/Tests/RunCMake/LinkWhatYouUse/CXX-Build-stdout.txt
@@ -0,0 +1,2 @@
+.*Warning: Unused direct dependencies.*
+.*libm.*
diff --git a/Tests/RunCMake/LinkWhatYouUse/CXX-launch-Build-stdout.txt b/Tests/RunCMake/LinkWhatYouUse/CXX-launch-Build-stdout.txt
new file mode 100644
index 0000000..95eafad
--- /dev/null
+++ b/Tests/RunCMake/LinkWhatYouUse/CXX-launch-Build-stdout.txt
@@ -0,0 +1,2 @@
+.*Warning: Unused direct dependencies.*
+.*libm.*
diff --git a/Tests/RunCMake/LinkWhatYouUse/CXX-launch.cmake b/Tests/RunCMake/LinkWhatYouUse/CXX-launch.cmake
new file mode 100644
index 0000000..3002c9d
--- /dev/null
+++ b/Tests/RunCMake/LinkWhatYouUse/CXX-launch.cmake
@@ -0,0 +1,3 @@
+set(CTEST_USE_LAUNCHERS 1)
+include(CTestUseLaunchers)
+include(CXX.cmake)
diff --git a/Tests/RunCMake/LinkWhatYouUse/CXX.cmake b/Tests/RunCMake/LinkWhatYouUse/CXX.cmake
new file mode 100644
index 0000000..9555832
--- /dev/null
+++ b/Tests/RunCMake/LinkWhatYouUse/CXX.cmake
@@ -0,0 +1,4 @@
+enable_language(CXX)
+set(CMAKE_LINK_WHAT_YOU_USE TRUE)
+add_executable(main main.cxx)
+target_link_libraries(main m)
diff --git a/Tests/RunCMake/LinkWhatYouUse/RunCMakeTest.cmake b/Tests/RunCMake/LinkWhatYouUse/RunCMakeTest.cmake
new file mode 100644
index 0000000..897f568
--- /dev/null
+++ b/Tests/RunCMake/LinkWhatYouUse/RunCMakeTest.cmake
@@ -0,0 +1,21 @@
+include(RunCMake)
+
+
+function(run_lwyu lang)
+ # Use a single build tree for tests without cleaning.
+ set(RunCMake_TEST_BINARY_DIR ${RunCMake_BINARY_DIR}/${lang}-build)
+ set(RunCMake_TEST_NO_CLEAN 1)
+ file(REMOVE_RECURSE "${RunCMake_TEST_BINARY_DIR}")
+ file(MAKE_DIRECTORY "${RunCMake_TEST_BINARY_DIR}")
+ run_cmake(${lang})
+
+ set(RunCMake_TEST_OUTPUT_MERGE 1)
+ run_cmake_command(${lang}-Build ${CMAKE_COMMAND} --build .)
+endfunction()
+
+run_lwyu(CXX)
+run_lwyu(C)
+if (NOT RunCMake_GENERATOR STREQUAL "Watcom WMake")
+ run_lwyu(C-launch)
+ run_lwyu(CXX-launch)
+endif()
diff --git a/Tests/RunCMake/LinkWhatYouUse/main.c b/Tests/RunCMake/LinkWhatYouUse/main.c
new file mode 100644
index 0000000..8488f4e
--- /dev/null
+++ b/Tests/RunCMake/LinkWhatYouUse/main.c
@@ -0,0 +1,4 @@
+int main(void)
+{
+ return 0;
+}
diff --git a/Tests/RunCMake/LinkWhatYouUse/main.cxx b/Tests/RunCMake/LinkWhatYouUse/main.cxx
new file mode 100644
index 0000000..f8b643a
--- /dev/null
+++ b/Tests/RunCMake/LinkWhatYouUse/main.cxx
@@ -0,0 +1,4 @@
+int main()
+{
+ return 0;
+}
-----------------------------------------------------------------------
Summary of changes:
Help/manual/cmake-properties.7.rst | 1 +
Help/manual/cmake-variables.7.rst | 1 +
Help/prop_tgt/LINK_WHAT_YOU_USE.rst | 15 +++++++++
Help/variable/CMAKE_LINK_WHAT_YOU_USE.rst | 6 ++++
Source/cmMakefileExecutableTargetGenerator.cxx | 14 ++++++++
Source/cmMakefileLibraryTargetGenerator.cxx | 16 +++++++++
Source/cmNinjaNormalTargetGenerator.cxx | 24 ++++++++++++--
Source/cmTarget.cxx | 1 +
Source/cmcmd.cxx | 34 +++++++++++++++++---
Tests/RunCMake/CMakeLists.txt | 8 +++++
Tests/RunCMake/LinkWhatYouUse/C-Build-stdout.txt | 2 ++
.../LinkWhatYouUse/C-launch-Build-stdout.txt | 2 ++
.../{ClangTidy => LinkWhatYouUse}/C-launch.cmake | 0
Tests/RunCMake/LinkWhatYouUse/C.cmake | 4 +++
.../CMakeLists.txt | 0
Tests/RunCMake/LinkWhatYouUse/CXX-Build-stdout.txt | 2 ++
.../LinkWhatYouUse/CXX-launch-Build-stdout.txt | 2 ++
.../{ClangTidy => LinkWhatYouUse}/CXX-launch.cmake | 0
Tests/RunCMake/LinkWhatYouUse/CXX.cmake | 4 +++
.../RunCMakeTest.cmake | 11 +++----
.../LinkWhatYouUse}/main.c | 0
.../{ClangTidy => LinkWhatYouUse}/main.cxx | 0
22 files changed, 135 insertions(+), 12 deletions(-)
create mode 100644 Help/prop_tgt/LINK_WHAT_YOU_USE.rst
create mode 100644 Help/variable/CMAKE_LINK_WHAT_YOU_USE.rst
create mode 100644 Tests/RunCMake/LinkWhatYouUse/C-Build-stdout.txt
create mode 100644 Tests/RunCMake/LinkWhatYouUse/C-launch-Build-stdout.txt
copy Tests/RunCMake/{ClangTidy => LinkWhatYouUse}/C-launch.cmake (100%)
create mode 100644 Tests/RunCMake/LinkWhatYouUse/C.cmake
copy Tests/RunCMake/{AutoExportDll => LinkWhatYouUse}/CMakeLists.txt (100%)
create mode 100644 Tests/RunCMake/LinkWhatYouUse/CXX-Build-stdout.txt
create mode 100644 Tests/RunCMake/LinkWhatYouUse/CXX-launch-Build-stdout.txt
copy Tests/RunCMake/{ClangTidy => LinkWhatYouUse}/CXX-launch.cmake (100%)
create mode 100644 Tests/RunCMake/LinkWhatYouUse/CXX.cmake
copy Tests/RunCMake/{IncludeWhatYouUse => LinkWhatYouUse}/RunCMakeTest.cmake (75%)
copy Tests/{CMakeOnly/LinkInterfaceLoop => RunCMake/LinkWhatYouUse}/main.c (100%)
copy Tests/RunCMake/{ClangTidy => LinkWhatYouUse}/main.cxx (100%)
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