Perl Dependencies Failing to install - Cygwin

Hi,

In many cases, CPAN may not be able to automatically install the modules properly. This could be due to the installation code unable to delete (unlink) the old modules/libraries in order for the installation to succeed.

Consider this: the CPAN process loads and attempts to upgrade a critical library that it currently uses as the process is loaded. On Windows, once the CPAN process obtains a lock on a .DLL, then that file cannot be deleted until the process is terminated.

In fact, this is actually the case when you're trying to upgrade: "PMQS/Compress-Raw-Zlib-2.006.tar.gz". The follow message appears:

I see you are running Cygwin.

Please note that this module cannot be installed on Cygwin using the CPAN
shell. The CPAN Shell uses Compress::Raw::Zlib internally and it is not
possible to delete an active DLL.

If you are running the CPAN shell, please exit it and install this module
by hand by running 'make install' under the directory

    ~/.cpan/build/Compress-Raw-Zlib-VERSION

Do you want to continue? [Y/N]: N

For these libraries, you have to exit out of CPAN, go to your ~/.cpan/build directory, and manually build, make, make test, and make install these libraries. These can be accomplished by doing:

cd ~/.cpan/build/PATH/TO/MODULE
perl Makefile.PL
make
make test
make install

By doing these operations manually, you can identify at what point the CPAN automated installation process failed. If you have performed this type of manual installation process already and they still fail, then I would need more information about each specific attempt, in order to help you any further.

Regards,

— Darien

Here are some of them…these seems to be a repeat of -Wdeclaration-after-statement

Administrator@client ~/.cpan/build/PathTools-3.25-nibOp3
$ make
gcc -c   -DPERL_USE_SAFE_PUTENV -fno-strict-aliasing -pipe -Wdeclaration-after-s
tatement -DUSEIMPORTLIB -O3   -DVERSION=\"3.25\" -DXS_VERSION=\"3.25\"  "-I/usr/
lib/perl5/5.8/cygwin/CORE"   Cwd.c
cc1: error: unrecognized option `-Wdeclaration-after-statement'
make: *** [Cwd.o] Error 1

Administrator@client ~/.cpan/build/Clone-0.27-jii8md
$ make
gcc -c   -DPERL_USE_SAFE_PUTENV -fno-strict-aliasing -pipe -Wdeclaration-after-s
tatement -DUSEIMPORTLIB -O3   -DVERSION=\"0.27\" -DXS_VERSION=\"0.27\"  "-I/usr/
lib/perl5/5.8/cygwin/CORE"   Clone.c
cc1: error: unrecognized option `-Wdeclaration-after-statement'
make: *** [Clone.o] Error 1

Administrator@client ~/.cpan/build/Compress-Raw-Zlib-2.006-eIM3Gd
$ make
gcc -c  -I./zlib-src -DPERL_USE_SAFE_PUTENV -fno-strict-aliasing -pipe -Wdeclara
tion-after-statement -DUSEIMPORTLIB -O3   -DVERSION=\"2.006\" -DXS_VERSION=\"2.0
06\"  "-I/usr/lib/perl5/5.8/cygwin/CORE"  -DGZIP_OS_CODE=3 -DUSE_PPPORT_H Zlib.c

cc1: error: unrecognized option `-Wdeclaration-after-statement'
make: *** [Zlib.o] Error 1

It looks like your issue is specific to your Cygwin environment. Specifically, it appears your version of GCC has issues with those directives. After doing some googling, it looks like others have had similar issues; see here:

http://www.issociate.de/board/post/447071/error_installing_HTML:Parser.html http://lists.roaringpenguin.com/pipermail/mimedefang/2007-July/033094.html http://www.nntp.perl.org/group/perl.dbi.users/2007/06/msg31592.html

As such, here's a possible solution:

Edit the Makefile manually and remove the part
where -Wdeclaration-after-statement is in CCFLAGS.

… once you edit the Makefile, then try to run "make".

Regards,

— Darien

Okay that worked; however, inorder to get the Data::Structure::Util dependency I had to update to a newer version of gcc.

Thanks.