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Q64028: Changing Directories in Make Files Not Supported by NMK.COM |
/pubs/pc/reference/microsoft/kb/Q64028/ |
Article: Q64028
Version(s): 1.11
Operating System: MS-DOS
Flags: ENDUSER | buglist1.11 S_QUICKC S_C
Last Modified: 31-AUG-1990
Using a command to change directories in a make file will cause
unexpected results with NMK.COM version 1.11. This is a side effect of
a problem with NMAKE.EXE where directory changes within make files are
executed while processing the make file, and the current directory is
not reset upon exit.
NMK spawns NMAKE to do its processing. While NMAKE is processing, if
it sees a change drive/directory command, it must make the change to
finish processing the make file. The problem is that it doesn't reset
the drive when it is through processing. This causes NMK, when control
is returned to it, to spawn the actual commands from the final
drive/directory, rather than where it was originally invoked.
The make file below, if run from Drive D, will demonstrate the
problem. It works properly with NMAKE.EXE but not with NMK.COM.
all: cded.exe
cded.exe: cded.obj
c:\
copy cded.obj cded.exe
cded.obj: cded.mak
copy cded.mak c:\cded.obj
To work around the problem, add a line at the end of each place block
where you change the drive/directory to the original one (if known).
For example, change the above make file to the following:
all: cded.exe
cded.exe: cded.obj
c:\
copy cded.obj cded.exe
d:
cded.obj: cded.mak
copy cded.mak c:\cded.obj