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ENH: Implemented RPATH specification support. It is documented by the command SET_TARGET_PROPERTIES.

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This commit is contained in:
Brad King 2006-02-16 15:19:00 -05:00
parent 13661cdd23
commit 537e2b4ed5
13 changed files with 278 additions and 40 deletions
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24
Source/cmGlobalUnixMakefileGenerator3.cxx
View File

@ -152,6 +152,11 @@ void cmGlobalUnixMakefileGenerator3::WriteMainMakefile2()
"The main recursive all target", "all",
depends, no_commands, true);
// Write an empty preinstall:
lg->WriteMakeRule(makefileStream,
"The main recursive preinstall target", "preinstall",
depends, no_commands, true);
lg->WriteMakeVariables(makefileStream);
// Write out the "special" stuff
@ -731,6 +736,25 @@ cmGlobalUnixMakefileGenerator3
lg->WriteMakeRule(ruleFileStream, "Convenience name for target.",
t->second.GetName(), depends, commands, true);
// Add rules to prepare the target for installation.
if(t->second.NeedRelinkBeforeInstall())
{
localName = lg->GetRelativeTargetDirectory(t->second);
localName += "/preinstall";
depends.clear();
commands.clear();
commands.push_back(lg->GetRecursiveMakeCall
(makefileName.c_str(), localName.c_str()));
this->AppendGlobalTargetDepends(depends,t->second);
lg->WriteMakeRule(ruleFileStream, "Pre-intsall relink rule for target.",
localName.c_str(), depends, commands, true);
depends.clear();
depends.push_back(localName);
commands.clear();
lg->WriteMakeRule(ruleFileStream, "Prepare target for install.",
"preinstall", depends, commands, true);
}
// add the clean rule
localName = lg->GetRelativeTargetDirectory(t->second);
makeTargetName = localName;

48
Source/cmLocalGenerator.cxx
View File

@ -353,6 +353,7 @@ void cmLocalGenerator::GenerateInstallRules()
// EXECUTABLE_OUTPUT_PATH not defined
exeOutPath = currdir + "/";
}
std::string relinkDir = currdir + "/CMakeFiles/CMakeRelink.dir/";
// Include user-specified install scripts.
std::vector<std::string> const& installScripts =
@ -375,6 +376,7 @@ void cmLocalGenerator::GenerateInstallRules()
}
if (l->second.GetInstallPath() != "")
{
bool need_relink = l->second.NeedRelinkBeforeInstall();
destination = "${CMAKE_INSTALL_PREFIX}" + l->second.GetInstallPath();
cmSystemTools::ConvertToUnixSlashes(destination);
const char* dest = destination.c_str();
@ -398,7 +400,7 @@ void cmLocalGenerator::GenerateInstallRules()
if ( ext == ".dll" )
{
// Install the .lib separately.
std::string libname = libOutPath;
std::string libname = need_relink? relinkDir : libOutPath;
libname += this->GetInstallReference(l->second, config,
configurationTypes,
true);
@ -438,7 +440,7 @@ void cmLocalGenerator::GenerateInstallRules()
case cmTarget::STATIC_LIBRARY:
case cmTarget::MODULE_LIBRARY:
{
fname = libOutPath;
fname = need_relink? relinkDir : libOutPath;
fname += this->GetInstallReference(l->second, config,
configurationTypes);
files = fname.c_str();
@ -460,7 +462,7 @@ void cmLocalGenerator::GenerateInstallRules()
}
std::string exeName =
this->GetInstallReference(l->second, config, configurationTypes);
fname = exeOutPath;
fname = need_relink? relinkDir : exeOutPath;
fname += exeName;
if(l->second.GetPropertyAsBool("MACOSX_BUNDLE"))
{
@ -1117,7 +1119,11 @@ const char* cmLocalGenerator::GetIncludeFlags(const char* lang)
}
flags += m_Makefile->GetDefineFlags();
m_LanguageToIncludeFlags[lang] = flags;
return m_LanguageToIncludeFlags[lang].c_str();
// Use this temorary variable for the return value to work-around a
// bogus GCC 2.95 warning.
const char* ret = m_LanguageToIncludeFlags[lang].c_str();
return ret;
}
//----------------------------------------------------------------------------
@ -1246,7 +1252,7 @@ void cmLocalGenerator::GetTargetFlags(std::string& linkLibs,
linkFlags += " ";
}
cmOStringStream linklibsStr;
this->OutputLinkLibraries(linklibsStr, target);
this->OutputLinkLibraries(linklibsStr, target, false);
linkLibs = linklibsStr.str();
}
break;
@ -1279,7 +1285,7 @@ void cmLocalGenerator::GetTargetFlags(std::string& linkLibs,
flags += m_Makefile->GetSafeDefinition(sharedFlagsVar.c_str());
flags += " ";
cmOStringStream linklibs;
this->OutputLinkLibraries(linklibs, target);
this->OutputLinkLibraries(linklibs, target, false);
linkLibs = linklibs.str();
if(cmSystemTools::IsOn(m_Makefile->GetDefinition("BUILD_SHARED_LIBS")))
{
@ -1319,7 +1325,8 @@ void cmLocalGenerator::GetTargetFlags(std::string& linkLibs,
* to the name of the library. This will not link a library against itself.
*/
void cmLocalGenerator::OutputLinkLibraries(std::ostream& fout,
cmTarget &tgt)
cmTarget& tgt,
bool relink)
{
// Try to emit each search path once
std::set<cmStdString> emitted;
@ -1327,7 +1334,6 @@ void cmLocalGenerator::OutputLinkLibraries(std::ostream& fout,
bool outputRuntime = true;
std::string runtimeFlag;
std::string runtimeSep;
std::vector<std::string> runtimeDirs;
const char* config = m_Makefile->GetDefinition("CMAKE_BUILD_TYPE");
const char* linkLanguage = tgt.GetLinkerLanguage(this->GetGlobalGenerator());
@ -1375,6 +1381,28 @@ void cmLocalGenerator::OutputLinkLibraries(std::ostream& fout,
std::vector<cmStdString> libDirs;
this->ComputeLinkInformation(tgt, config, libNames, libDirs);
// Select whether to generate an rpath for the install tree or the
// build tree.
bool linking_for_install =
relink || tgt.GetPropertyAsBool("BUILD_WITH_INSTALL_RPATH");
bool use_install_rpath =
outputRuntime && tgt.HaveInstallTreeRPATH() && linking_for_install;
bool use_build_rpath =
outputRuntime && tgt.HaveBuildTreeRPATH() && !linking_for_install;
// Construct the RPATH.
std::vector<std::string> runtimeDirs;
if(use_install_rpath)
{
const char* install_rpath = tgt.GetProperty("INSTALL_RPATH");
cmSystemTools::ExpandListArgument(install_rpath, runtimeDirs);
for(unsigned int i=0; i < runtimeDirs.size(); ++i)
{
runtimeDirs[i] =
this->Convert(runtimeDirs[i].c_str(), FULL, SHELL, false);
}
}
// Append the library search path flags.
for(std::vector<cmStdString>::const_iterator libDir = libDirs.begin();
libDir != libDirs.end(); ++libDir)
@ -1397,7 +1425,7 @@ void cmLocalGenerator::OutputLinkLibraries(std::ostream& fout,
&& libDir->find("${") == std::string::npos)
{
linkLibs += libPathFlag;
if(outputRuntime)
if(use_build_rpath)
{
runtimeDirs.push_back( fullLibPath );
}
@ -1417,7 +1445,7 @@ void cmLocalGenerator::OutputLinkLibraries(std::ostream& fout,
fout << linkLibs;
if(outputRuntime && runtimeDirs.size()>0)
if(!runtimeDirs.empty())
{
// For the runtime search directories, do a "-Wl,-rpath,a:b:c" or
// a "-R a -R b -R c" type link line

2
Source/cmLocalGenerator.h
View File

@ -175,7 +175,7 @@ protected:
cmTarget&target);
///! put all the libraries for a target on into the given stream
virtual void OutputLinkLibraries(std::ostream&, cmTarget&);
virtual void OutputLinkLibraries(std::ostream&, cmTarget&, bool relink);
/** Compute the string to use to refer to a target in an install
file. */

18
Source/cmLocalUnixMakefileGenerator3.cxx
View File

@ -1288,6 +1288,7 @@ void cmLocalUnixMakefileGenerator3
// Write special "install" target to run cmake_install.cmake script.
{
std::vector<std::string> depends;
depends.push_back("preinstall");
std::vector<std::string> commands;
std::string cmd;
if(m_Makefile->GetDefinition("CMake_BINARY_DIR"))
@ -1304,6 +1305,12 @@ void cmLocalUnixMakefileGenerator3
}
cmd += " -P cmake_install.cmake";
commands.push_back(cmd);
this->WriteMakeRule(ruleFileStream,
"Special rule to run installation script.",
"install", depends, commands, true);
commands.clear();
depends.clear();
const char* noall =
m_Makefile->GetDefinition("CMAKE_SKIP_INSTALL_ALL_DEPENDENCY");
if(!noall || cmSystemTools::IsOff(noall))
@ -1311,9 +1318,16 @@ void cmLocalUnixMakefileGenerator3
// Drive the build before installing.
depends.push_back("all");
}
else
{
// At least make sure the build system is up to date.
depends.push_back("cmake_check_build_system");
}
commands.push_back(this->GetRecursiveMakeCall
("CMakeFiles/Makefile2", "preinstall"));
this->WriteMakeRule(ruleFileStream,
"Special rule to run installation script.",
"install", depends, commands, true);
"Prepare targets for installation.",
"preinstall", depends, commands, true);
}
// Write special "rebuild_cache" target to re-run cmake.

20
Source/cmMakefileExecutableTargetGenerator.cxx
View File

@ -39,7 +39,12 @@ void cmMakefileExecutableTargetGenerator::WriteRuleFiles()
this->WriteTargetDependRules();
// write the link rules
this->WriteExecutableRule();
this->WriteExecutableRule(false);
if(this->Target->NeedRelinkBeforeInstall())
{
// Write rules to link an installable version of the target.
this->WriteExecutableRule(true);
}
// Write the requires target.
this->WriteTargetRequiresRules();
@ -54,7 +59,7 @@ void cmMakefileExecutableTargetGenerator::WriteRuleFiles()
//----------------------------------------------------------------------------
void cmMakefileExecutableTargetGenerator::WriteExecutableRule()
void cmMakefileExecutableTargetGenerator::WriteExecutableRule(bool relink)
{
std::vector<std::string> commands;
@ -132,6 +137,13 @@ void cmMakefileExecutableTargetGenerator::WriteExecutableRule()
false, false, false);
}
#endif
if(relink)
{
outpath = this->Makefile->GetStartOutputDirectory();
outpath += "/CMakeFiles/CMakeRelink.dir";
cmSystemTools::MakeDirectory(outpath.c_str());
outpath += "/";
}
std::string targetFullPath = outpath + targetName;
std::string targetFullPathReal = outpath + targetNameReal;
@ -259,7 +271,7 @@ void cmMakefileExecutableTargetGenerator::WriteExecutableRule()
// Collect up flags to link in needed libraries.
cmOStringStream linklibs;
this->LocalGenerator->OutputLinkLibraries(linklibs, *this->Target);
this->LocalGenerator->OutputLinkLibraries(linklibs, *this->Target, relink);
// Construct object file lists that may be needed to expand the
// rule.
@ -316,7 +328,7 @@ void cmMakefileExecutableTargetGenerator::WriteExecutableRule()
dir += "/";
dir += this->LocalGenerator->GetTargetDirectory(*this->Target);
std::string buildTargetRuleName = dir;
buildTargetRuleName += "/build";
buildTargetRuleName += relink?"/preinstall":"/build";
buildTargetRuleName =
this->Convert(buildTargetRuleName.c_str(),
cmLocalGenerator::HOME_OUTPUT,

2
Source/cmMakefileExecutableTargetGenerator.h
View File

@ -27,7 +27,7 @@ public:
virtual void WriteRuleFiles();
protected:
virtual void WriteExecutableRule();
virtual void WriteExecutableRule(bool relink);
};

57
Source/cmMakefileLibraryTargetGenerator.cxx
View File

@ -46,10 +46,20 @@ void cmMakefileLibraryTargetGenerator::WriteRuleFiles()
this->WriteStaticLibraryRules();
break;
case cmTarget::SHARED_LIBRARY:
this->WriteSharedLibraryRules();
this->WriteSharedLibraryRules(false);
if(this->Target->NeedRelinkBeforeInstall())
{
// Write rules to link an installable version of the target.
this->WriteSharedLibraryRules(true);
}
break;
case cmTarget::MODULE_LIBRARY:
this->WriteModuleLibraryRules();
this->WriteModuleLibraryRules(false);
if(this->Target->NeedRelinkBeforeInstall())
{
// Write rules to link an installable version of the target.
this->WriteModuleLibraryRules(true);
}
break;
default:
// If language is not known, this is an error.
@ -82,11 +92,11 @@ void cmMakefileLibraryTargetGenerator::WriteStaticLibraryRules()
std::string extraFlags;
this->LocalGenerator->AppendFlags(extraFlags, this->Target->GetProperty("STATIC_LIBRARY_FLAGS"));
this->WriteLibraryRules(linkRuleVar.c_str(), extraFlags.c_str());
this->WriteLibraryRules(linkRuleVar.c_str(), extraFlags.c_str(), false);
}
//----------------------------------------------------------------------------
void cmMakefileLibraryTargetGenerator::WriteSharedLibraryRules()
void cmMakefileLibraryTargetGenerator::WriteSharedLibraryRules(bool relink)
{
const char* linkLanguage =
this->Target->GetLinkerLanguage(this->GlobalGenerator);
@ -115,11 +125,11 @@ void cmMakefileLibraryTargetGenerator::WriteSharedLibraryRules()
}
}
}
this->WriteLibraryRules(linkRuleVar.c_str(), extraFlags.c_str());
this->WriteLibraryRules(linkRuleVar.c_str(), extraFlags.c_str(), relink);
}
//----------------------------------------------------------------------------
void cmMakefileLibraryTargetGenerator::WriteModuleLibraryRules()
void cmMakefileLibraryTargetGenerator::WriteModuleLibraryRules(bool relink)
{
const char* linkLanguage =
this->Target->GetLinkerLanguage(this->GlobalGenerator);
@ -134,12 +144,12 @@ void cmMakefileLibraryTargetGenerator::WriteModuleLibraryRules()
this->LocalGenerator->AppendFlags(extraFlags, this->Target->GetProperty("LINK_FLAGS"));
this->LocalGenerator->AddConfigVariableFlags(extraFlags, "CMAKE_MODULE_LINKER_FLAGS");
// TODO: .def files should be supported here also.
this->WriteLibraryRules(linkRuleVar.c_str(), extraFlags.c_str());
this->WriteLibraryRules(linkRuleVar.c_str(), extraFlags.c_str(), relink);
}
//----------------------------------------------------------------------------
void cmMakefileLibraryTargetGenerator::WriteLibraryRules
(const char* linkRuleVar, const char* extraFlags)
(const char* linkRuleVar, const char* extraFlags, bool relink)
{
// TODO: Merge the methods that call this method to avoid
// code duplication.
@ -202,6 +212,13 @@ void cmMakefileLibraryTargetGenerator::WriteLibraryRules
outpath = this->Makefile->GetStartOutputDirectory();
outpath += "/";
}
if(relink)
{
outpath = this->Makefile->GetStartOutputDirectory();
outpath += "/CMakeFiles/CMakeRelink.dir";
cmSystemTools::MakeDirectory(outpath.c_str());
outpath += "/";
}
std::string targetFullPath = outpath + targetName;
std::string targetFullPathSO = outpath + targetNameSO;
std::string targetFullPathReal = outpath + targetNameReal;
@ -285,9 +302,15 @@ void cmMakefileLibraryTargetGenerator::WriteLibraryRules
this->Makefile->GetHomeOutputDirectory());
commands.insert(commands.end(), commands1.begin(), commands1.end());
commands1.clear();
// Add the pre-build and pre-link rules.
this->LocalGenerator->AppendCustomCommands(commands, this->Target->GetPreBuildCommands());
this->LocalGenerator->AppendCustomCommands(commands, this->Target->GetPreLinkCommands());
// Add the pre-build and pre-link rules building but not when relinking.
if(!relink)
{
this->LocalGenerator
->AppendCustomCommands(commands, this->Target->GetPreBuildCommands());
this->LocalGenerator
->AppendCustomCommands(commands, this->Target->GetPreLinkCommands());
}
// Construct the main link rule.
std::string linkRule = this->Makefile->GetRequiredDefinition(linkRuleVar);
@ -314,12 +337,16 @@ void cmMakefileLibraryTargetGenerator::WriteLibraryRules
commands.insert(commands.end(), commands1.begin(), commands1.end());
}
// Add the post-build rules.
this->LocalGenerator->AppendCustomCommands(commands, this->Target->GetPostBuildCommands());
// Add the post-build rules when building but not when relinking.
if(!relink)
{
this->LocalGenerator->
AppendCustomCommands(commands, this->Target->GetPostBuildCommands());
}
// Collect up flags to link in needed libraries.
cmOStringStream linklibs;
this->LocalGenerator->OutputLinkLibraries(linklibs, *this->Target);
this->LocalGenerator->OutputLinkLibraries(linklibs, *this->Target, relink);
// Construct object file lists that may be needed to expand the
// rule.
@ -381,7 +408,7 @@ void cmMakefileLibraryTargetGenerator::WriteLibraryRules
dir += "/";
dir += this->LocalGenerator->GetTargetDirectory(*this->Target);
std::string buildTargetRuleName = dir;
buildTargetRuleName += "/build";
buildTargetRuleName += relink?"/preinstall":"/build";
buildTargetRuleName =
this->Convert(buildTargetRuleName.c_str(),
cmLocalGenerator::HOME_OUTPUT,cmLocalGenerator::MAKEFILE);

7
Source/cmMakefileLibraryTargetGenerator.h
View File

@ -29,9 +29,10 @@ public:
protected:
void WriteStaticLibraryRules();
void WriteSharedLibraryRules();
void WriteModuleLibraryRules();
void WriteLibraryRules(const char *linkRule, const char *extraFlags);
void WriteSharedLibraryRules(bool relink);
void WriteModuleLibraryRules(bool relink);
void WriteLibraryRules(const char *linkRule, const char *extraFlags,
bool relink);
};
#endif

15
Source/cmSetTargetPropertiesCommand.h
View File

@ -79,7 +79,20 @@ public:
"When building or installing appropriate symlinks are created if "
"the platform supports symlinks. "
"The OUTPUT_NAME can be used to set an output name that is "
"used in place of the target name when creating executables. "
"used in place of the target name when creating executables.\n"
"There are a few properties used to specify RPATH rules. "
"INSTALL_RPATH is a semicolon-separated list specifying the rpath "
"to use in installed targets (for platforms that support it). "
"SKIP_BUILD_RPATH is a boolean specifying whether to skip automatic "
"generation of an rpath allowing the target to run from the "
"build tree. "
"BUILD_WITH_INSTALL_RPATH is a boolean specifying whether to link "
"the target in the build tree with the INSTALL_RPATH. This takes "
"precedence over SKIP_BUILD_RPATH and avoids the need for relinking "
"before installation. When the target is created the values of "
"the variables CMAKE_INSTALL_RPATH, CMAKE_SKIP_BUILD_RPATH, and "
"CMAKE_BUILD_WITH_INSTALL_RPATH are used to initialize these "
"properties.\n"
"PROJECT_LABEL can be used to change the name of "
"the target in an IDE like visual studio. VS_KEYWORD can be set "
"to change the visual studio keyword, for example QT integration "

101
Source/cmTarget.cxx
View File

@ -44,6 +44,17 @@ void cmTarget::SetType(TargetType type, const char* name)
}
}
//----------------------------------------------------------------------------
void cmTarget::SetMakefile(cmMakefile* mf)
{
// Set our makefile.
m_Makefile = mf;
// Setup default property values.
this->SetPropertyDefault("INSTALL_RPATH", "");
this->SetPropertyDefault("SKIP_BUILD_RPATH", "OFF");
this->SetPropertyDefault("BUILD_WITH_INSTALL_RPATH", "OFF");
}
void cmTarget::TraceVSDependencies(std::string projFile,
cmMakefile *makefile)
@ -1309,3 +1320,93 @@ void cmTarget::GetExecutableNamesInternal(std::string& name,
realName += version;
}
}
//----------------------------------------------------------------------------
void cmTarget::SetPropertyDefault(const char* property,
const char* default_value)
{
// Compute the name of the variable holding the default value.
std::string var = "CMAKE_";
var += property;
if(const char* value = m_Makefile->GetDefinition(var.c_str()))
{
this->SetProperty(property, value);
}
else if(default_value)
{
this->SetProperty(property, default_value);
}
}
//----------------------------------------------------------------------------
bool cmTarget::HaveBuildTreeRPATH()
{
return (!this->GetPropertyAsBool("SKIP_BUILD_RPATH") &&
!m_LinkLibraries.empty());
}
//----------------------------------------------------------------------------
bool cmTarget::HaveInstallTreeRPATH()
{
const char* install_rpath = this->GetProperty("INSTALL_RPATH");
return install_rpath && *install_rpath;
}
//----------------------------------------------------------------------------
bool cmTarget::NeedRelinkBeforeInstall()
{
// Only executables and shared libraries can have an rpath and may
// need relinking.
if(m_TargetType != cmTarget::EXECUTABLE &&
m_TargetType != cmTarget::SHARED_LIBRARY &&
m_TargetType != cmTarget::MODULE_LIBRARY)
{
return false;
}
// If there is no install location this target will not be installed
// and therefore does not need relinking.
if(this->GetInstallPath().empty())
{
return false;
}
// If skipping all rpaths completely then no relinking is needed.
if(m_Makefile->IsOn("CMAKE_SKIP_RPATH"))
{
return false;
}
// If building with the install-tree rpath no relinking is needed.
if(this->GetPropertyAsBool("BUILD_WITH_INSTALL_RPATH"))
{
return false;
}
// Check for rpath support on this platform.
if(const char* ll = this->GetLinkerLanguage(
m_Makefile->GetLocalGenerator()->GetGlobalGenerator()))
{
std::string flagVar = "CMAKE_SHARED_LIBRARY_RUNTIME_";
flagVar += ll;
flagVar += "_FLAG";
if(!m_Makefile->IsSet(flagVar.c_str()))
{
// There is no rpath support on this platform so nothing needs
// relinking.
return false;
}
}
else
{
// No linker language is known. This error will be reported by
// other code.
return false;
}
// If either a build or install tree rpath is set then the rpath
// will likely change between the build tree and install tree and
// this target must be relinked.
return this->HaveBuildTreeRPATH() || this->HaveInstallTreeRPATH();
}

14
Source/cmTarget.h
View File

@ -63,7 +63,7 @@ public:
void SetInAll(bool f) { this->SetProperty("IN_ALL", (f) ?"TRUE" : "FALSE"); }
///! Set the cmMakefile that owns this target
void SetMakefile(cmMakefile *mf) { m_Makefile = mf; };
void SetMakefile(cmMakefile *mf);
cmMakefile *GetMakefile() { return m_Makefile;};
/**
@ -209,6 +209,15 @@ public:
executable target. */
void GetExecutableCleanNames(std::string& name, std::string& realName,
const char* config);
/**
* Compute whether this target must be relinked before installing.
*/
bool NeedRelinkBeforeInstall();
bool HaveBuildTreeRPATH();
bool HaveInstallTreeRPATH();
private:
/**
* A list of direct dependencies. Use in conjunction with DependencyMap.
@ -282,6 +291,9 @@ private:
// update the value of the LOCATION var
void UpdateLocation();
// Use a makefile variable to set a default for the given property.
// If the variable is not defined use the given default instead.
void SetPropertyDefault(const char* property, const char* default_value);
private:
std::string m_Name;
std::vector<cmCustomCommand> m_PreBuildCommands;

3
Tests/SimpleInstall/CMakeLists.txt
View File

@ -8,6 +8,9 @@ SET(LIBRARY_OUTPUT_PATH "${EXECUTABLE_OUTPUT_PATH}")
# avoids infinite loops when the post-build rule below installs.
SET(CMAKE_SKIP_INSTALL_ALL_DEPENDENCY 1)
# Make sure the test executable can run from the install tree.
SET(CMAKE_INSTALL_RPATH ${CMAKE_INSTALL_PREFIX}/lib)
SET(CMAKE_DEBUG_POSTFIX "_test_debug_postfix")
SET(EXTRA_INSTALL_FLAGS)

3
Tests/SimpleInstallS2/CMakeLists.txt
View File

@ -8,6 +8,9 @@ SET(LIBRARY_OUTPUT_PATH "${EXECUTABLE_OUTPUT_PATH}")
# avoids infinite loops when the post-build rule below installs.
SET(CMAKE_SKIP_INSTALL_ALL_DEPENDENCY 1)
# Make sure the test executable can run from the install tree.
SET(CMAKE_INSTALL_RPATH ${CMAKE_INSTALL_PREFIX}/lib)
SET(CMAKE_DEBUG_POSTFIX "_test_debug_postfix")
SET(EXTRA_INSTALL_FLAGS)