Opened 7 years ago
Closed 7 years ago
#6925 closed defect (duplicate)
Incorrect debug VC++ compiler flags in nmake.opt
| Reported by: | xcgh7712 | Owned by: | warmerdam |
|---|---|---|---|
| Priority: | normal | Milestone: | |
| Component: | default | Version: | unspecified |
| Severity: | normal | Keywords: | |
| Cc: |
Description
The DEBUG OPTFLAGS for the root nmake.opt are incorrect. The debug builds are currently linking to the release mode MSVCR##.dll (compiler switch /MD) instead of the debug mode MSVCR##D.dll (compiler switch /MDd).
Also, the DEBUG OPTFLAGS #define DEBUG, but not _DEBUG. There should be both /DDEBUG and /D_DEBUG switches.
To summarize: /MD in DEBUG builds should be /MDd, need both /DDEBUG and /D_DEBUG
Without these changes, GDAL objects will appear to have incorrect values in their member variables when a debug build of Visual C++ project uses the debug build of the GDAL DLL. Also, heap corruption will occur if a GDAL class is new'd outside of the GDAL DLL then delete'd inside of the GDAL DLL, or vice versa.
Duplicate of https://trac.osgeo.org/gdal/ticket/6384 and many other tickets