Re: Using Nmake from GNU-make

[Gisle Vanem]

Eli Zaretskii wrote:

> > gnss_libf2c.lib:
> >     cd libf2c ; nmake.exe -nologo -f Makefile.VC all
> >     cp libf2c/vcfc2.lib $@
> >
> > but Nmake errors with:
> >     Microsoft (R) Program Maintenance Utility Version 14.26.28806.0
> >     Copyright (C) Microsoft Corporation.  All rights reserved.
> >
> >     NMAKE : fatal error U1065: invalid option '-'
> >     Stop.
>
> Does this happen even if you remove the "cd libf2c" part?  That is,
> are you saying that any invocation of NMake from a MinGW-built GNU
> Make causes this problem?

The 'cd' doesn't matter. And BTW the GNU-make is built using
MSVC (by myself).

But I discovered that maybe the 'MAKEFLAGS' picked up by NMake
is to blame. Since:
  make -f GNUmakefile FOO_BAR=whatever

triggers the same previous error. But a:
   make -f GNUmakefile

works fine!?

There are some details on MAKEFLAGS here:
  
https://docs.microsoft.com/en-us/cpp/build/reference/makefile-preprocessing-directives?view=vs-2019

> What happens if you use redirection, or in some other way force GNU
> Make to invoke NMake via a batch file?

Probably worth a try.

> And one more idea: did you try to use '/' as the NMake option
> character instead of '-' ?

No difference. All (?)/most MS tools handle both '/' and '-'.


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--gv