Go Up to C++ Linker
Project > Options > C++ Linker > Warnings
Use this dialog box to set C++ linker warning options.
- Note: The Warnings page only supports Technical Details About ILINK32 and ILINK64 (32-bit Windows), Technical Details About ILINK32 and ILINK64 (64-bit Windows) and XLINK (OS X).
| Option
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Description
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Disable all warnings
(-w-)
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Disables all warning and error messages. Default = False
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Enable all warnings
(-w)
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Displays all warning and error messages. Default = False
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Selected warnings
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Enables only the specific warnings that are set to True. Click the + to display the list of ILINK32 warnings. Default = True.
| Option
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Default
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Description
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Switch
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Attempt to export non-public symbol
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On
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A symbol name was listed in the EXPORTS section of the module definition file, but no symbol of this name was found as public in the modules linked.
Possible causes are:
- You are trying to export a function that is not declared as public.
- You specified the _export keyword in the declaration of a function but not in its definition, or the other way around.
- You made a mistake in spelling or case.
- You are exporting a procedure that is declared but not defined.
- If you are using case-sensitive exports, the Pascal calling convention used by Windows requires these symbols to be all-uppercase characters.
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-wexp
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Creating a package without any units
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On
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You are attempting to create a package that contains no units. Check the Contains list to be sure the associated units are listed. (The Contains list identifies the unit files to be bound into the package.)
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-wnou
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Image linked as an executable, but with a .DLL extension
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On
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The linker generates this warning when an executable file has been generated and stored in a file with a .DLL or .BPL extension. This usually occurs when you intended to build a .DLL or .BPL but forgot to specify a .DLL or .BPL target.
The complete warning message is:
- Image linked as an executable, but with .DLL or .BPL extension
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-wdee
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Public symbol defined in more than one library
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Off
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This warning is displayed if you have duplicate symbols in two separate libraries. There is special handling for -wdup and -wdpl. -wdup can be considered the master control for warnings about duplicate publics. If this warning is disabled, no message about duplicate publics is emitted. -wdpl controls whether or not warnings are emitted for duplicate publics that are being linked from library modules. If -wdpl is disabled, and -wdup is enabled, only warnings for duplicate publics from OBJ files on the linker command line are emitted. If -wdpl and -wdup are both enabled, the linker flags duplicate publics that are in modules being linked from LIB files.
Currently, -wdpl is the only warning that is disabled by default. So specifying no warning options on the command line is the same as the following:
-w+exp -w+rty -w+dup -w-dpl -w+nou -w+srd -w+dee -w+dli -w+snf
The complete warning messages are:
- Public symbol 'symbol' defined in both library module 'module1' and 'module2'
- Public symbol 'symbol' defined in both module 'module1' and 'module2'
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-wdup
-wdpl
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Public symbol defined in more than one object file
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On
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Section not found
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On
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This warning occurs when a named section is not found.
The complete warning message is:
- Section ‘section’ not found
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-wsnf
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Stripping relocations from a DLL may cause it to malfunction
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On
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This warning occurs if the Base address option is set when linking a DLL.
The complete warning message is:
- Stripping relocations from a DLL may cause the DLL to malfunction
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-wsrd
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Unable to load DLL
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On
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This warning occurs if the Base address option is set when linking a DLL. In almost every case, this error will prevent the application from running.
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-wuld
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Unable to perform incremental link
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On
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This warning appears if the incremental link fails. The linker detected an error in one of its state files (projectname.IL*) so it started a full link and created a new set of state files.
The complete warning message is:
- Unable to perform incremental link – performing full link
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-wrty
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See Also