[Trilinos-Users] Cygwin Build Problems

[Michael Sielemann]

Dear all,
There is one thing I forgot. I ran into another error message that I already
came across earlier. "No rule to make GetNecessaryFiles.exe." issued by
Didasko/Examples. So I added a line to the makefile to fake the build step
output.

GetNecessaryFiles: $(srcdir)/In_fidap005.rua $(srcdir)/In_orsirr_2.rua
    cp -f $(srcdir)/In_fidap005.rua fidap005.rua
    cp -f $(srcdir)/In_orsirr_2.rua orsirr_2.rua
*    echo This is a dummy > GetNecessaryFiles.exe*

Just in case someone asks for Cygwin again,

Best regards MICHAEL


On Tue, Jan 20, 2009 at 4:32 PM, Michael Sielemann <
michael.sielemann at gmail.com> wrote:

>
>
> Ross,
> Thanks for your reply. I certainly understand your remark on the priority
> of supporting Cygwin and I appreciate Sandia's generosity to share Trilinos
> with the scientific community. That said, my problem was that I understood
> that building under Cygwin was really a no-brainer. I took your config and
> compile flags as if they were carved in stone and looked for other problems
> (Cygwin related, conflicts with other software etc). Turns out that a little
> tweaking on the compiler flags does the job. Sorry for being too lazy.
>
> Thanks to everybody for helping me out,
>
> Details are below.
>
> Best regards MICHAEL
>
> ----8<-------------------------8<----
>
> When compiling Trilinos with gcc 3.4.4 under current Cygwin g++ complained
> that standard routines like strdup() were undeclared (in Zoltan's
> driver/dr_main.c for example). Via copy and paste I made up the following
> small test.
>
> #include <stdio.h>
> #include <string.h>
>
> #ifdef __cplusplus
> /* if C++, define the rest of this header file as extern C */
> extern "C" {
> #endif
>
> int main(void)
> {
>    char *string = "this is a copy";
>    char *newstr;
>    /* Make newstr point to a duplicate of
> string                              */
>    if ((newstr = strdup(string)) != NULL)
>       printf("The new string is: %s\n", newstr);
>    return 0;
> }
>
> #ifdef __cplusplus
> } /* closing bracket for extern "C" */
> #endif
>
> Under current Cygwin, this will not compile with the g++ flag -ansi:
>
> $ g++ -ansi test.c -o mytest.exe
> test.c: In function `int main()':
> test.c:14: error: `strdup' undeclared (first use this function)
> test.c:14: error: (Each undeclared identifier is reported only once for
> each function it appears in.)
>
> Using gcc 4 said flags work fine and also on a 32 bit node with Centos 4
> and gcc 3.4.6 they do. So I guess that this was changed between 3.4.4 and
> 3.4.6 or is a peculiarity/bug/feature of Cygwin (a downgrade to an earlier
> version of gcc earlier didn't avoid the error message).
>
> BTW, I tried gcc 4.x under Cygwin earlier, that alone didn't help either.
> So I recommend using gcc 3 for now.
>
> Anyway, the following do-configure.sh works fine for libraries and examples
> (up to now, tests still have to be compiled). It is based on the script
> suggested by Ross earlier.
>
> #!/bin/sh
> rm config.cache
> ../configure --prefix=/cygdrive/f/C_Sandbox/tribox/trilinoslib \
> --cache-file=config.cache \
> --with-install="/usr/bin/install -p" \
> CXXFLAGS="-g -O0 -Wall -fexceptions" \
> CFLAGS="-g -O0 -Wall -fexceptions" \
>
> FFLAGS="-g -O0 " \
> --enable-export-makefiles \
> --with-gnumake \
> --disable-default-packages \
> --enable-teuchos --enable-teuchos-extended --enable-teuchos-debug
> --enable-teuchos-abc --disable-teuchos-blasfloat \
> --enable-thyra \
> --enable-epetra --enable-epetra-abc \
> --enable-triutils --disable-triutils-tests --disable-triutils-examples \
> --enable-epetraext \
> --enable-amesos \
> --enable-aztecoo \
> --enable-belos \
> --enable-ifpack \
> --enable-ml \
> --enable-nox --enable-nox-epetra --enable-nox-epetraext --enable-nox-thyra
> --enable-nox-thyra-tests --enable-nox-tests \
> --enable-loca \
> --enable-stratimikos \
> --enable-rythmos \
> --enable-moocho \
> --enable-sacado \
> --enable-meros \
> --enable-new_package \
> --enable-galeri \
> --enable-isorropia \
> --enable-moertel \
> --enable-anasazi \
> --enable-didasko
>
>
> One could add the -pedantic to the C and CXX flags, still.
>
>
>
>
> On Fri, Jan 16, 2009 at 9:03 PM, Bartlett, Roscoe A <rabartl at sandia.gov>wrote:
>
>>  Michael,
>>
>> I am surprised by all of these problems that you are having with building
>> Trilinos on cygwin.  While I have been able to get this to work in the
>> past with the packages that I build we don't really have official support
>> for Cygwin at this point.  I don't think anyone really does any testing of
>> Trilinos on cygwin before a release is put out.  None of our critical
>> internal customers rely on cygwin so it is not a high priority.  Cygwin is
>> more a convenience for developers who want to do a little work on their
>> Windows machine.
>>
>> Has anyone else on this list be able to get Trilinos 9.0 to build under
>> cygwin?
>>
>> Cheers,
>>
>> - Ross
>>
>>
>>
>
>
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