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Re: [Mingw-users] troubles compiling the GNU GMP under MinWG

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On 24/07/17 16:46, Eli Zaretskii wrote:
>> From: "Euchner, Martin" <martin.euchner@xxxxxxx>
>> Date: Mon, 24 Jul 2017 15:20:32 +0000
>>
>> $ make factorize
>> gcc -m32 -O2 -pedantic -fomit-frame-pointer -mtune=sandybridge -march=sandybridge    factorize.c   -o factorize
>> C:\Users\euchner\AppData\Local\Temp\ccEo6gbB.o:factorize.c:(.text+0x23): undefined reference to `__gmpz_powm'
>> C:\Users\euchner\AppData\Local\Temp\ccEo6gbB.o:factorize.c:(.text+0x33): undefined reference to `__gmpz_cmp_ui'

The OP sent me a copy of his build log, by private mail; it shows that
he chose a non-standard prefix, for installation of his GMP build, so
not only ...

> The GCC command line obviously lacks the reference to GMP library.

... but also lacks a specification of the path to it.  (Alternatively, 
if the MinGW.org pre-built GMP-6.1.2 is installed -- the "dev" package, 
not just the DLL -- it would be found in GCC's default library path).
  I
> would look at the Makefile which produced this command, probably some
> variable isn't set there correctly or has an empty value.

Maybe LDFLAGS for the -L path, and LIBS for the library reference itself,
since GMP uses an autoconf generated configuration.

> Did the library itself build successfully?

The OP's log suggests that it did.

- -- 
Regards,
Keith.

Public key available from keys.gnupg.net
Key fingerprint: C19E C018 1547 DE50 E1D4 8F53 C0AD 36C6 347E 5A3F
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