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BUG: Dependency scans and checks must always set the current working directory to the directory containing the Makefile.

This commit is contained in:
Brad King 2005-03-08 09:24:24 -05:00
parent 59a7019305
commit 5dc555e26d
1 changed files with 20 additions and 0 deletions
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20
Source/cmDepends.cxx
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@ -19,6 +19,8 @@
#include "cmGeneratedFileStream.h"
#include "cmSystemTools.h"
#include <assert.h>
//----------------------------------------------------------------------------
cmDepends::cmDepends(const char* dir, const char* targetFile):
m_Directory(dir),
@ -44,6 +46,10 @@ cmDepends::~cmDepends()
//----------------------------------------------------------------------------
bool cmDepends::Write()
{
// Dependency generation must always be done in the current working
// directory.
assert(m_Directory == ".");
// Try to generate dependencies for the target file.
cmGeneratedFileStream fout(m_DependsMakeFile.c_str());
fout << "# Dependencies for " << m_TargetFile.c_str() << std::endl;
@ -63,6 +69,14 @@ bool cmDepends::Write()
//----------------------------------------------------------------------------
void cmDepends::Check()
{
// Dependency checks must be done in proper working directory.
std::string oldcwd = ".";
if(m_Directory != ".")
{
oldcwd = cmSystemTools::GetCurrentWorkingDirectory();
cmSystemTools::ChangeDirectory(m_Directory.c_str());
}
// Check whether dependencies must be regenerated.
std::ifstream fin(m_DependsMakeFile.c_str());
if(!(fin && this->CheckDependencies(fin)))
@ -70,6 +84,12 @@ void cmDepends::Check()
// Clear all dependencies so they will be regenerated.
this->Clear();
}
// Restore working directory.
if(oldcwd != ".")
{
cmSystemTools::ChangeDirectory(oldcwd.c_str());
}
}
//----------------------------------------------------------------------------