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293 lines
9.5 KiB
293 lines
9.5 KiB
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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file Copyright.txt or https://cmake.org/licensing for details. */
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#include "cmAddLibraryCommand.h"
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#include "cmExecutionStatus.h"
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#include "cmGeneratorExpression.h"
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#include "cmGlobalGenerator.h"
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#include "cmMakefile.h"
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#include "cmMessageType.h"
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#include "cmPolicies.h"
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#include "cmState.h"
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#include "cmStateTypes.h"
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#include "cmStringAlgorithms.h"
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#include "cmTarget.h"
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bool cmAddLibraryCommand(std::vector<std::string> const& args,
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cmExecutionStatus& status)
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{
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if (args.empty()) {
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status.SetError("called with incorrect number of arguments");
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return false;
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}
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cmMakefile& mf = status.GetMakefile();
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// Library type defaults to value of BUILD_SHARED_LIBS, if it exists,
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// otherwise it defaults to static library.
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cmStateEnums::TargetType type = cmStateEnums::SHARED_LIBRARY;
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if (cmIsOff(mf.GetDefinition("BUILD_SHARED_LIBS"))) {
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type = cmStateEnums::STATIC_LIBRARY;
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}
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bool excludeFromAll = false;
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bool importTarget = false;
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bool importGlobal = false;
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auto s = args.begin();
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std::string const& libName = *s;
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++s;
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// If the second argument is "SHARED" or "STATIC", then it controls
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// the type of library. Otherwise, it is treated as a source or
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// source list name. There may be two keyword arguments, check for them
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bool haveSpecifiedType = false;
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bool isAlias = false;
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while (s != args.end()) {
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std::string libType = *s;
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if (libType == "STATIC") {
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if (type == cmStateEnums::INTERFACE_LIBRARY) {
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status.SetError(
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"INTERFACE library specified with conflicting STATIC type.");
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return false;
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}
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++s;
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type = cmStateEnums::STATIC_LIBRARY;
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haveSpecifiedType = true;
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} else if (libType == "SHARED") {
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if (type == cmStateEnums::INTERFACE_LIBRARY) {
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status.SetError(
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"INTERFACE library specified with conflicting SHARED type.");
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return false;
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}
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++s;
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type = cmStateEnums::SHARED_LIBRARY;
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haveSpecifiedType = true;
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} else if (libType == "MODULE") {
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if (type == cmStateEnums::INTERFACE_LIBRARY) {
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status.SetError(
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"INTERFACE library specified with conflicting MODULE type.");
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return false;
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}
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++s;
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type = cmStateEnums::MODULE_LIBRARY;
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haveSpecifiedType = true;
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} else if (libType == "OBJECT") {
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if (type == cmStateEnums::INTERFACE_LIBRARY) {
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status.SetError(
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"INTERFACE library specified with conflicting OBJECT type.");
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return false;
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}
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++s;
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type = cmStateEnums::OBJECT_LIBRARY;
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haveSpecifiedType = true;
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} else if (libType == "UNKNOWN") {
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if (type == cmStateEnums::INTERFACE_LIBRARY) {
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status.SetError(
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"INTERFACE library specified with conflicting UNKNOWN type.");
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return false;
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}
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++s;
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type = cmStateEnums::UNKNOWN_LIBRARY;
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haveSpecifiedType = true;
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} else if (libType == "ALIAS") {
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if (type == cmStateEnums::INTERFACE_LIBRARY) {
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status.SetError(
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"INTERFACE library specified with conflicting ALIAS type.");
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return false;
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}
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++s;
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isAlias = true;
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} else if (libType == "INTERFACE") {
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if (haveSpecifiedType) {
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status.SetError(
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"INTERFACE library specified with conflicting/multiple types.");
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return false;
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}
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if (isAlias) {
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status.SetError(
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"INTERFACE library specified with conflicting ALIAS type.");
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return false;
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}
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++s;
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type = cmStateEnums::INTERFACE_LIBRARY;
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haveSpecifiedType = true;
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} else if (*s == "EXCLUDE_FROM_ALL") {
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++s;
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excludeFromAll = true;
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} else if (*s == "IMPORTED") {
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++s;
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importTarget = true;
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} else if (importTarget && *s == "GLOBAL") {
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++s;
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importGlobal = true;
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} else if (type == cmStateEnums::INTERFACE_LIBRARY && *s == "GLOBAL") {
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status.SetError(
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"GLOBAL option may only be used with IMPORTED libraries.");
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return false;
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} else {
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break;
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}
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}
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if (type == cmStateEnums::INTERFACE_LIBRARY) {
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if (importGlobal && !importTarget) {
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status.SetError(
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"INTERFACE library specified as GLOBAL, but not as IMPORTED.");
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return false;
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}
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}
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bool nameOk = cmGeneratorExpression::IsValidTargetName(libName) &&
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!cmGlobalGenerator::IsReservedTarget(libName);
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if (nameOk && !importTarget && !isAlias) {
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nameOk = libName.find(':') == std::string::npos;
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}
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if (!nameOk && !mf.CheckCMP0037(libName, type)) {
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return false;
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}
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if (isAlias) {
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if (!cmGeneratorExpression::IsValidTargetName(libName)) {
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status.SetError("Invalid name for ALIAS: " + libName);
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return false;
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}
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if (excludeFromAll) {
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status.SetError("EXCLUDE_FROM_ALL with ALIAS makes no sense.");
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return false;
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}
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if (importTarget || importGlobal) {
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status.SetError("IMPORTED with ALIAS is not allowed.");
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return false;
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}
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if (args.size() != 3) {
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status.SetError("ALIAS requires exactly one target argument.");
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return false;
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}
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if (mf.GetPolicyStatus(cmPolicies::CMP0107) == cmPolicies::NEW) {
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// Make sure the target does not already exist.
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if (mf.FindTargetToUse(libName)) {
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status.SetError(cmStrCat(
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"cannot create ALIAS target \"", libName,
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"\" because another target with the same name already exists."));
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return false;
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}
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}
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std::string const& aliasedName = *s;
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if (mf.IsAlias(aliasedName)) {
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status.SetError(cmStrCat("cannot create ALIAS target \"", libName,
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"\" because target \"", aliasedName,
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"\" is itself an ALIAS."));
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return false;
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}
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cmTarget* aliasedTarget = mf.FindTargetToUse(aliasedName, true);
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if (!aliasedTarget) {
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status.SetError(cmStrCat("cannot create ALIAS target \"", libName,
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"\" because target \"", aliasedName,
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"\" does not already exist."));
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return false;
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}
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cmStateEnums::TargetType aliasedType = aliasedTarget->GetType();
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if (aliasedType != cmStateEnums::SHARED_LIBRARY &&
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aliasedType != cmStateEnums::STATIC_LIBRARY &&
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aliasedType != cmStateEnums::MODULE_LIBRARY &&
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aliasedType != cmStateEnums::OBJECT_LIBRARY &&
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aliasedType != cmStateEnums::INTERFACE_LIBRARY &&
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!(aliasedType == cmStateEnums::UNKNOWN_LIBRARY &&
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aliasedTarget->IsImported())) {
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status.SetError(cmStrCat("cannot create ALIAS target \"", libName,
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"\" because target \"", aliasedName,
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"\" is not a library."));
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return false;
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}
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mf.AddAlias(libName, aliasedName,
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!aliasedTarget->IsImported() ||
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aliasedTarget->IsImportedGloballyVisible());
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return true;
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}
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if (importTarget && excludeFromAll) {
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status.SetError("excludeFromAll with IMPORTED target makes no sense.");
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return false;
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}
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/* ideally we should check whether for the linker language of the target
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CMAKE_${LANG}_CREATE_SHARED_LIBRARY is defined and if not default to
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STATIC. But at this point we know only the name of the target, but not
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yet its linker language. */
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if ((type == cmStateEnums::SHARED_LIBRARY ||
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type == cmStateEnums::MODULE_LIBRARY) &&
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!mf.GetState()->GetGlobalPropertyAsBool("TARGET_SUPPORTS_SHARED_LIBS")) {
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mf.IssueMessage(
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MessageType::AUTHOR_WARNING,
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cmStrCat(
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"ADD_LIBRARY called with ",
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(type == cmStateEnums::SHARED_LIBRARY ? "SHARED" : "MODULE"),
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" option but the target platform does not support dynamic linking. ",
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"Building a STATIC library instead. This may lead to problems."));
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type = cmStateEnums::STATIC_LIBRARY;
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}
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// Handle imported target creation.
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if (importTarget) {
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// The IMPORTED signature requires a type to be specified explicitly.
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if (!haveSpecifiedType) {
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status.SetError("called with IMPORTED argument but no library type.");
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return false;
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}
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if (type == cmStateEnums::INTERFACE_LIBRARY) {
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if (!cmGeneratorExpression::IsValidTargetName(libName)) {
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status.SetError(cmStrCat(
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"Invalid name for IMPORTED INTERFACE library target: ", libName));
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return false;
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}
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}
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// Make sure the target does not already exist.
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if (mf.FindTargetToUse(libName)) {
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status.SetError(cmStrCat(
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"cannot create imported target \"", libName,
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"\" because another target with the same name already exists."));
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return false;
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}
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// Create the imported target.
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mf.AddImportedTarget(libName, type, importGlobal);
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return true;
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}
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// A non-imported target may not have UNKNOWN type.
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if (type == cmStateEnums::UNKNOWN_LIBRARY) {
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mf.IssueMessage(
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MessageType::FATAL_ERROR,
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"The UNKNOWN library type may be used only for IMPORTED libraries.");
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return true;
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}
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// Enforce name uniqueness.
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{
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std::string msg;
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if (!mf.EnforceUniqueName(libName, msg)) {
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status.SetError(msg);
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return false;
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}
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}
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if (type == cmStateEnums::INTERFACE_LIBRARY) {
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if (!cmGeneratorExpression::IsValidTargetName(libName) ||
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libName.find("::") != std::string::npos) {
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status.SetError(
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cmStrCat("Invalid name for INTERFACE library target: ", libName));
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return false;
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}
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}
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std::vector<std::string> srcs(s, args.end());
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mf.AddLibrary(libName, type, srcs, excludeFromAll);
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return true;
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}
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