I just read the C::B source code, and I found several functions to handle cygdrive related paths:
// Cygwin check code
#ifdef __WXMSW__
enum{ BUFSIZE = 64 };
// routines to handle cygwin compiled programs on a Windows compiled C::B IDE
void GDB_driver::DetectCygwinMount(void)
{
....
m_CygwinPresent = true; // if we end up here all was OK
m_CygdrivePrefix = (szCygwinRoot); // convert to wxString type for later use
}
void GDB_driver::CorrectCygwinPath(wxString& path)
{
...
}
#else
void GDB_driver::DetectCygwinMount(void){/* dummy */}
void GDB_driver::CorrectCygwinPath(cb_unused wxString& path){/* dummy */}
#endif
So, normally, the cygwin installation is detected.
Especially, there are code to do the translation:
// Check for possibility of a cygwin compiled program
// convert to valid path
if (platform::windows && m_CygwinPresent)
CorrectCygwinPath(lines.Item(i));
Now, here comes my guess, you have installed the cygwin 64 bit, which our function: void GDB_driver::DetectCygwinMount(void) failed to detect as a cygwin. The detecting algorithm is simply check the Windows registry like:
// routines to handle cygwin compiled programs on a Windows compiled C::B IDE
void GDB_driver::DetectCygwinMount(void)
{
LONG lRegistryAPIresult;
HKEY hKey_CU;
HKEY hKey_LM;
TCHAR szCygwinRoot[BUFSIZE];
DWORD dwBufLen=BUFSIZE*sizeof(TCHAR);
// checking if cygwin mounts are present under HKCU
lRegistryAPIresult = RegOpenKeyEx( HKEY_CURRENT_USER,
TEXT("Software\\Cygnus Solutions\\Cygwin\\mounts v2"),
0, KEY_QUERY_VALUE, &hKey_CU );
if ( lRegistryAPIresult == ERROR_SUCCESS )
{
// try to readback cygwin root (might not exist!)
lRegistryAPIresult = RegQueryValueEx( hKey_CU, TEXT("cygdrive prefix"), NULL, NULL,
(LPBYTE) szCygwinRoot, &dwBufLen);
}
// lRegistryAPIresult can be erroneous for two reasons:
// 1.) Cygwin entry is not present (could not be opened) in HKCU
// 2.) "cygdrive prefix" is not present (could not be read) in HKCU
if ( lRegistryAPIresult != ERROR_SUCCESS )
{
// Now check if probably present under HKLM
lRegistryAPIresult = RegOpenKeyEx( HKEY_LOCAL_MACHINE,
TEXT("SOFTWARE\\Cygnus Solutions\\Cygwin\\mounts v2"),
0, KEY_QUERY_VALUE, &hKey_LM );
if ( lRegistryAPIresult != ERROR_SUCCESS )
{
// cygwin definitely not installed
m_CygwinPresent = false;
return;
}
// try to readback cygwin root (now it really should exist here)
lRegistryAPIresult = RegQueryValueEx( hKey_LM, TEXT("cygdrive prefix"), NULL, NULL,
(LPBYTE) szCygwinRoot, &dwBufLen);
}
// handle a possible query error
if ( (lRegistryAPIresult != ERROR_SUCCESS) || (dwBufLen > BUFSIZE*sizeof(TCHAR)) )
{
// bit of an assumption, but we won't be able to find the root without it
m_CygwinPresent = false;
return;
}
// close opened keys
RegCloseKey( hKey_CU ); // ignore key close errors
RegCloseKey( hKey_LM ); // ignore key close errors
m_CygwinPresent = true; // if we end up here all was OK
m_CygdrivePrefix = (szCygwinRoot); // convert to wxString type for later use
}
Can you try to see in your Windows registry that those expect value exist? If not, can you create some dummy ones to
cheat C::B's DetectCygwinMount function?
