CMake/Source/cmFindLibraryCommand.cxx

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/*=========================================================================
Program: CMake - Cross-Platform Makefile Generator
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Module: $RCSfile$
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved.
See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
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=========================================================================*/
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#include "cmFindLibraryCommand.h"
#include "cmCacheManager.h"
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cmFindLibraryCommand::cmFindLibraryCommand()
{
cmSystemTools::ReplaceString(this->GenericDocumentation,
"FIND_XXX", "find_library");
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cmSystemTools::ReplaceString(this->GenericDocumentation,
"CMAKE_XXX_PATH", "CMAKE_LIBRARY_PATH");
cmSystemTools::ReplaceString(this->GenericDocumentation,
"CMAKE_XXX_MAC_PATH",
"CMAKE_FRAMEWORK_PATH");
cmSystemTools::ReplaceString(this->GenericDocumentation,
"CMAKE_SYSTEM_XXX_MAC_PATH",
"CMAKE_SYSTEM_FRAMEWORK_PATH");
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cmSystemTools::ReplaceString(this->GenericDocumentation,
"XXX_SYSTEM", "LIB");
cmSystemTools::ReplaceString(this->GenericDocumentation,
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"CMAKE_SYSTEM_XXX_PATH",
"CMAKE_SYSTEM_LIBRARY_PATH");
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cmSystemTools::ReplaceString(this->GenericDocumentation,
"SEARCH_XXX_DESC", "library");
cmSystemTools::ReplaceString(this->GenericDocumentation,
"SEARCH_XXX", "library");
cmSystemTools::ReplaceString(this->GenericDocumentation,
"XXX_SUBDIR", "lib");
cmSystemTools::ReplaceString(this->GenericDocumentation,
"CMAKE_FIND_ROOT_PATH_MODE_XXX",
"CMAKE_FIND_ROOT_PATH_MODE_LIBRARY");
this->EnvironmentPath = "LIB";
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this->GenericDocumentation +=
"\n"
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"If the library found is a framework, then VAR will be set to "
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"the full path to the framework <fullPath>/A.framework. "
"When a full path to a framework is used as a library, "
"CMake will use a -framework A, and a -F<fullPath> to "
"link the framework to the target. ";
}
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// cmFindLibraryCommand
bool cmFindLibraryCommand
::InitialPass(std::vector<std::string> const& argsIn, cmExecutionStatus &)
{
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this->VariableDocumentation = "Path to a library.";
this->CMakePathName = "LIBRARY";
if(!this->ParseArguments(argsIn))
{
return false;
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}
if(this->AlreadyInCache)
{
// If the user specifies the entry on the command line without a
// type we should add the type and docstring but keep the original
// value.
if(this->AlreadyInCacheWithoutMetaInfo)
{
this->Makefile->AddCacheDefinition(this->VariableName.c_str(), "",
this->VariableDocumentation.c_str(),
cmCacheManager::FILEPATH);
}
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return true;
}
if(const char* abi_name =
this->Makefile->GetDefinition("CMAKE_INTERNAL_PLATFORM_ABI"))
{
std::string abi = abi_name;
if(abi.find("ELF N32") != abi.npos)
{
// Convert lib to lib32.
this->AddArchitecturePaths("32");
}
}
if(this->Makefile->GetCMakeInstance()
->GetPropertyAsBool("FIND_LIBRARY_USE_LIB64_PATHS"))
{
// add special 64 bit paths if this is a 64 bit compile.
this->AddLib64Paths();
}
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std::string library;
for(std::vector<std::string>::iterator i = this->Names.begin();
i != this->Names.end() ; ++i)
{
library = this->FindLibrary(i->c_str());
if(library != "")
{
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this->Makefile->AddCacheDefinition(this->VariableName.c_str(),
library.c_str(),
this->VariableDocumentation.c_str(),
cmCacheManager::FILEPATH);
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return true;
}
}
std::string notfound = this->VariableName + "-NOTFOUND";
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this->Makefile->AddCacheDefinition(this->VariableName.c_str(),
notfound.c_str(),
this->VariableDocumentation.c_str(),
cmCacheManager::FILEPATH);
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return true;
}
//----------------------------------------------------------------------------
void cmFindLibraryCommand::AddArchitecturePaths(const char* suffix)
{
std::vector<std::string> newPaths;
bool found = false;
std::string subpath = "lib";
subpath += suffix;
subpath += "/";
for(std::vector<std::string>::iterator i = this->SearchPaths.begin();
i != this->SearchPaths.end(); ++i)
{
// Try replacing lib/ with lib<suffix>/
std::string s = *i;
cmSystemTools::ReplaceString(s, "lib/", subpath.c_str());
if((s != *i) && cmSystemTools::FileIsDirectory(s.c_str()))
{
found = true;
newPaths.push_back(s);
}
// Now look for lib<suffix>
s = *i;
s += suffix;
if(cmSystemTools::FileIsDirectory(s.c_str()))
{
found = true;
newPaths.push_back(s);
}
// now add the original unchanged path
if(cmSystemTools::FileIsDirectory(i->c_str()))
{
newPaths.push_back(*i);
}
}
// If any new paths were found replace the original set.
if(found)
{
this->SearchPaths = newPaths;
}
}
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void cmFindLibraryCommand::AddLib64Paths()
{
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if(!this->Makefile->GetLocalGenerator()->GetGlobalGenerator()->
GetLanguageEnabled("C"))
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{
return;
}
std::string voidsize =
this->Makefile->GetSafeDefinition("CMAKE_SIZEOF_VOID_P");
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int size = atoi(voidsize.c_str());
if(size != 8)
{
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return;
}
std::vector<std::string> path64;
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bool found64 = false;
for(std::vector<std::string>::iterator i = this->SearchPaths.begin();
i != this->SearchPaths.end(); ++i)
{
std::string s = *i;
std::string s2 = *i;
cmSystemTools::ReplaceString(s, "lib/", "lib64/");
// try to replace lib with lib64 and see if it is there,
// then prepend it to the path
if((s != *i) && cmSystemTools::FileIsDirectory(s.c_str()))
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{
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path64.push_back(s);
found64 = true;
}
// now just add a 64 to the path name and if it is there,
// add it to the path
s2 += "64";
if(cmSystemTools::FileIsDirectory(s2.c_str()))
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{
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found64 = true;
path64.push_back(s2);
}
// now add the original unchanged path
if(cmSystemTools::FileIsDirectory(i->c_str()))
{
path64.push_back(*i);
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}
}
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// now replace the SearchPaths with the 64 bit converted path
// if any 64 bit paths were discovered
if(found64)
{
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this->SearchPaths = path64;
}
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}
std::string cmFindLibraryCommand::FindLibrary(const char* name)
{
bool supportFrameworks = false;
bool onlyFrameworks = false;
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std::string ff = this->Makefile->GetSafeDefinition("CMAKE_FIND_FRAMEWORK");
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if(ff == "FIRST" || ff == "LAST")
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{
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supportFrameworks = true;
}
if(ff == "ONLY")
{
onlyFrameworks = true;
supportFrameworks = true;
}
const char* prefixes_list =
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this->Makefile->GetRequiredDefinition("CMAKE_FIND_LIBRARY_PREFIXES");
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const char* suffixes_list =
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this->Makefile->GetRequiredDefinition("CMAKE_FIND_LIBRARY_SUFFIXES");
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std::vector<std::string> prefixes;
std::vector<std::string> suffixes;
cmSystemTools::ExpandListArgument(prefixes_list, prefixes, true);
cmSystemTools::ExpandListArgument(suffixes_list, suffixes, true);
// If the original library name provided by the user matches one of
// the suffixes, try it first.
bool tryOrig = false;
{
std::string nm = name;
for(std::vector<std::string>::const_iterator si = suffixes.begin();
!tryOrig && si != suffixes.end(); ++si)
{
std::string const& suffix = *si;
if(nm.length() > suffix.length() &&
nm.substr(nm.size()-suffix.length()) == suffix)
{
tryOrig = true;
}
}
}
// Add a trailing slash to all paths to aid the search process.
for(std::vector<std::string>::iterator i = this->SearchPaths.begin();
i != this->SearchPaths.end(); ++i)
{
std::string& p = *i;
if(p.empty() || p[p.size()-1] != '/')
{
p += "/";
}
}
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std::string tryPath;
for(std::vector<std::string>::const_iterator p = this->SearchPaths.begin();
p != this->SearchPaths.end(); ++p)
{
if(supportFrameworks)
{
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tryPath = *p;
tryPath += name;
tryPath += ".framework";
if(cmSystemTools::FileExists(tryPath.c_str())
&& cmSystemTools::FileIsDirectory(tryPath.c_str()))
{
tryPath = cmSystemTools::CollapseFullPath(tryPath.c_str());
cmSystemTools::ConvertToUnixSlashes(tryPath);
return tryPath;
}
}
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if(!onlyFrameworks)
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{
// Try the original library name as specified by the user.
if(tryOrig)
{
tryPath = *p;
tryPath += name;
if(cmSystemTools::FileExists(tryPath.c_str(), true))
{
tryPath = cmSystemTools::CollapseFullPath(tryPath.c_str());
cmSystemTools::ConvertToUnixSlashes(tryPath);
return tryPath;
}
}
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// Try various library naming conventions.
for(std::vector<std::string>::iterator prefix = prefixes.begin();
prefix != prefixes.end(); ++prefix)
{
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for(std::vector<std::string>::iterator suffix = suffixes.begin();
suffix != suffixes.end(); ++suffix)
{
tryPath = *p;
tryPath += *prefix;
tryPath += name;
tryPath += *suffix;
if(cmSystemTools::FileExists(tryPath.c_str())
&& !cmSystemTools::FileIsDirectory(tryPath.c_str()))
{
tryPath = cmSystemTools::CollapseFullPath(tryPath.c_str());
cmSystemTools::ConvertToUnixSlashes(tryPath);
return tryPath;
}
}
}
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}
}
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// Couldn't find the library.
return "";
}