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Q60746: NMAKE May Invoke MASM Instead of the C Compiler |
/pubs/pc/reference/microsoft/kb/Q60746/ |
Article: Q60746
Version(s): 1.00 1.01 1.11 | 1.01 1.11
Operating System: MS-DOS | OS/2
Flags: ENDUSER | docsup s_pwb h_fortran
Last Modified: 17-JUL-1990
When using an NMAKE file in combination with adding /Fa to the
compiler options within Programmer's WorkBench (PWB), NMAKE will
invoke the Macro Assembler, if it is in the current search path.
This does not occur the first time you build your application, but it
does occur the second time, and thereafter, because of the generation
of the .ASM created by the compiler.
Files with the .ASM extension have a predefined inference rule within
NMAKE to invoke MASM. However, the inference rule for .ASM files takes
place before the rule for files with the .C or .OBJ extension.
Therefore, if you have a filename with the same base name, but one has
an .ASM extension and the other has a .C extension (as is the case
with the /FA switch), the .ASM file will be assembled before the .C
file will be compiled. Since the assembly step generates an .OBJ file
that is newer than the .C file, the .C file is never compiled.
Use the following procedures to work around this behavior:
1. The best workaround is to use /Fa [LSTFILE.EXT] with a filename
included as a compiler option, instead of allowing the /Fa option
to default to its <filename>.ASM.
Example: /Fa <filename>.ASC
In using this method, the .C file will be compiled, instead of the
.ASM version being assembled.
2. Use the /Fc compiler option in place of the /Fa option (if you just
want to look at an assembly source listing). This produces a .COD
file (combined assembly and C source listing).
3. Use the /R switch for the NMAKE invocation to ignore inference
rules and macros that are predefined or defined in the TOOLS.INI
file.
For a more in-depth discussion on the /R switch and its effects, see
the following references:
1. The "Microsoft C Advanced Programming Techniques" reference manual
Page(s) 112-114 Predefined macros
118-119 Predefined inference rules
125 /R Switch
2. The "Microsoft FORTRAN, CodeView and Utilities User's Guide"
Page(s) 288 /R Switch
295-297 Predefined macros
299-230 Predefined inference rules
3. The "Microsoft QuickC Toolkit" reference manual
Page(s) 158 /R Switch
165-197 Predefined macros
169 Predefined inference rules