KnowledgeBase Archive

An Archive of Early Microsoft KnowledgeBase Articles

View on GitHub

Q67087: Spaces Between /Fe or /Fo and Filename Cause Unclear Warning

Article: Q67087
Product(s): See article
Version(s): 5.10 6.00 6.00a | 5.10 6.00 6.00a
Operating System(s): MS-DOS | OS/2
Keyword(s): ENDUSER | S_QUICKC docerr buglist5.10 buglist6.00 buglist6.00a | mspl13_c
Last Modified: 4-JAN-1991

The /Fe and /Fo compiler options are used to name the executable file
and the object file, respectively. These switches require that the
name of the file immediately follows the switch with no intervening
spaces. If one or more spaces separate the option from the filename,
the compiler will generate one of the following unexpected warnings:

   Command line warning D4002 : ignoring unknown flag '-Fe'
   Command line warning D4002 : ignoring unknown flag '-Fo'

This limitation is documented in the online help but the "Microsoft C
Reference" manual does not make this clear because it shows the
switches with a space before the filenames. In addition, these
messages are not indicative of the true nature of the errors, implying
instead that these options are not implemented.

Microsoft has confirmed this to be a problem in C versions 5.10, 6.00,
and 6.00a and QuickC versions 2.00, 2.01, 2.50, and 2.51 (buglist2.00,
buglist2.01, buglist2.50, and buglist2.51). We are researching this
problem and will post new information here as it becomes available.

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY.