thanks Brian! MinGW/cygwin. Have a cool weekend :-)

thanks Brian! MinGW/cygwin. Have a cool weekend :-)

[Jim McNamara]

I got past the error message on configuring.

I am trying to get past an error in the Makefile now.

I posted it to gnucobol and am seeing if they can assist. It has something to do with a default.conf file is missing in one of the source directories.

I found the button for plain text mode in yahoo.

I will read up on cross compiling in the next day or two. I don't know what packages to install for that in cygwin. I get : cross compiling ... no.

They seem really interested in gnucobol with mingw related questions.

Thanks for all of your help this weekend.

roboloki

Re: Unable to extract GMP version information from gmp_version :mingw

[Brian Inglis]

On 2020-10-25 01:47, Jim McNamara via Cygwin wrote:
> I got past the error message on configuring.
> 
> I am trying to get past an error in the Makefile now.
> 
> I posted it to gnucobol and am seeing if they can assist. It has something to do with a default.conf file is missing in one of the source directories.
> 
> I found the button for plain text mode in yahoo.
> 
> I will read up on cross compiling in the next day or two. I don't know what packages to install for that in cygwin. I get : cross compiling ... no.
> 
> They seem really interested in gnucobol with mingw related questions.
> 
> Thanks for all of your help this weekend.

In this case, "cross-compiling" just means using the mingw gcc compilers to
produce native Windows exes that require only Windows dlls, rather than Cygwin
POSIX exes that need the Cygwin dll to run.

-- 
Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada

This email may be disturbing to some readers as it contains
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Unable to extract GMP version information from gmp_version :mingw

[Jim McNamara]

HI all-
I am experimenting with mingW64 with cygwin.
My ./configure looks like this:
$ echo $LD_LIBRARY_PATHC:/cygwin/lib
$ ./configure --prefix=/home/user/cobol-3.1-rc1 --host=x86_64-w64-mingw32
checking for gmp... nochecking for libgmp... nochecking gmp.h usability... yeschecking gmp.h presence... yeschecking for gmp.h... yeschecking for gmp.h... (cached) yeschecking if linking against libgmp with "-lgmp" works... yeschecking matching GMP version... configure: error: Unable to extract GMP version information from gmp_version
I installed the gmp package for mingw64. I went in and installed libgmp mingW64 package and the headers for in devel section of the cygwin installer.
I have the file libgmp.dll.a in c:/cygwin/lib
Please let me know if there is anything i can do to get past this error.
thanks,roboloki

Re: Unable to extract GMP version information from gmp_version :mingw

[Brian Inglis]

On 2020-10-24 22:44, Jim McNamara via Cygwin wrote:
> I am experimenting with mingW64 with cygwin.
> My ./configure looks like this:
> $ echo $LD_LIBRARY_PATHC:/cygwin/lib
> $ ./configure --prefix=/home/user/cobol-3.1-rc1 --host=x86_64-w64-mingw32
> checking for gmp... nochecking for libgmp... nochecking gmp.h usability... yeschecking gmp.h presence... yeschecking for gmp.h... yeschecking for gmp.h... (cached) yeschecking if linking against libgmp with "-lgmp" works... yeschecking matching GMP version... configure: error: Unable to extract GMP version information from gmp_version
> I installed the gmp package for mingw64. I went in and installed libgmp mingW64 package and the headers for in devel section of the cygwin installer.
> I have the file libgmp.dll.a in c:/cygwin/lib
> Please let me know if there is anything i can do to get past this error.

Please figure out how to copy and paste including line terminators, or paste
into an editor and reformat before pasting into email.

You should normally be building in a directory e.g build, separate from that in
which configure resides e.g.

	$ mkdir build
	$ cd build
	$ ../src/configure ...

in which you should find config.log which should show all the details of all the
programs generated and run to check all the features required and all the
results from those runs.

I have found it useful if not necessary to install libgmp-devel with
mingw64-{x86_64,i686}-gmp, pkg-config with mingw64-{x86_64,i686}-pkg-config, and
similarly with other packages required for cross-builds.

-- 
Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada

This email may be disturbing to some readers as it contains
too much technical detail. Reader discretion is advised.
[Data in binary units and prefixes, physical quantities in SI.]

Re: Unable to extract GMP version information from gmp_version :mingw

[Achim Gratz]

Jim McNamara via Cygwin writes:
> I am experimenting with mingW64 with cygwin.

Have you ever used a cross-compilation toolchain before?

> My ./configure looks like this:
> $ echo $LD_LIBRARY_PATHC:/cygwin/lib

Not sure what you are trying to achieve there, but even if it was
working it would be wrong.

> $ ./configure --prefix=/home/user/cobol-3.1-rc1 --host=x86_64-w64-mingw32

Is your configure script set up to actually work with cross-compilation?
Your output doesn't seem to contain any notion of the configury checking
the cross toolchain.

> I installed the gmp package for mingw64.

Correct.

> I went in and installed libgmp mingW64 package and the headers for in
> devel section of the cygwin installer.

Whatever devel package you found there is most likely for Cygwin, but
it's hard to know without the package name.  The mingw64-* packages are
all standalone devel packages, only the Cygwin packages are split into
runtime and devel.

> I have the file libgmp.dll.a in c:/cygwin/lib

That's not the link library for MingW, but for Cygwin.

> Please let me know if there is anything i can do to get past this error.

Maybe you look at some of the cross-compiled stuff in Cygwin and take it
from there?


Regards,
Achim.
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