Re: what means is defined in DSO /lib64/libz.so.1
On Tue, 2012-03-06 at 18:21 +0100, Fabian Deutsch wrote: > Am Dienstag, den 06.03.2012, 17:10 + schrieb Sérgio Basto: > > Hi , I found this error > > > > /usr/bin/ld: > > /usr/lib/gcc/x86_64-redhat-linux/4.7.0/../../../../lib64/libgpac_static.a(base_encoding.o): > > undefined reference to symbol 'deflate' > > > > /usr/bin/ld: note: 'deflate' is defined in DSO /lib64/libz.so.1 so try > > adding it to the linker command > > line > > > > /lib64/libz.so.1: could not read symbols: Invalid > > operation > > collect2: error: ld returned 1 exit status > > DSO is something like an auto-symbol-resolver (so linking in libraries > that are used by other directly-linked libraries, google for with with > fedora). > DSO is deactivated on fedora, therefor you need to pass each library > required to the linker. "DSO" means "dynamic shared object" and is more or less just another word for "shared library". > In the above case you need to additionally pass -lz to the linked (e.g. > using LDLAGS=-lz), as suggested by gcc (which says: is defined in) Nils -- Nils Philippsen "Those who would give up Essential Liberty to purchase Red Hat a little Temporary Safety, deserve neither Liberty n...@redhat.com nor Safety." -- Benjamin Franklin, 1759 PGP fingerprint: C4A8 9474 5C4C ADE3 2B8F 656D 47D8 9B65 6951 3011 -- devel mailing list devel@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/devel
Re: what means is defined in DSO /lib64/libz.so.1
On Tue, 2012-03-06 at 17:10 +, Sérgio Basto wrote: > Could someone help me , to understand what happens ? > > Thanks in advance, Wiki page alert ;) http://fedoraproject.org/wiki/UnderstandingDSOLinkChange -- Thanks, Regards, Ankur: "FranciscoD" http://fedoraproject.org/wiki/User:Ankursinha http://dodoincfedora.wordpress.com/ signature.asc Description: This is a digitally signed message part -- devel mailing list devel@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/devel
Re: what means is defined in DSO /lib64/libz.so.1
yeah ,I think, I install zlib-devel and fix the problem , because detect zlib. Thanks On Tue, 2012-03-06 at 18:21 +0100, Fabian Deutsch wrote: > Am Dienstag, den 06.03.2012, 17:10 + schrieb Sérgio Basto: > > Hi , I found this error > > > > /usr/bin/ld: > > /usr/lib/gcc/x86_64-redhat-linux/4.7.0/../../../../lib64/libgpac_static.a(base_encoding.o): > > undefined reference to symbol 'deflate' > > > > /usr/bin/ld: note: 'deflate' is defined in DSO /lib64/libz.so.1 so try > > adding it to the linker command > > line > > > > /lib64/libz.so.1: could not read symbols: Invalid > > operation > > collect2: error: ld returned 1 exit status > > DSO is something like an auto-symbol-resolver (so linking in libraries > that are used by other directly-linked libraries, google for with with > fedora). > DSO is deactivated on fedora, therefor you need to pass each library > required to the linker. > In the above case you need to additionally pass -lz to the linked (e.g. > using LDLAGS=-lz), as suggested by gcc (which says: is defined in) > > Greetings > fabian > > > > > > Could someone help me , to understand what happens ? > > > > Thanks in advance, > > -- > > Sérgio M. B. > > > > > > -- Sérgio M. B. -- devel mailing list devel@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/devel
Re: what means is defined in DSO /lib64/libz.so.1
Am Dienstag, den 06.03.2012, 17:10 + schrieb Sérgio Basto: > Hi , I found this error > > /usr/bin/ld: > /usr/lib/gcc/x86_64-redhat-linux/4.7.0/../../../../lib64/libgpac_static.a(base_encoding.o): > undefined reference to symbol 'deflate' > > /usr/bin/ld: note: 'deflate' is defined in DSO /lib64/libz.so.1 so try > adding it to the linker command > line > > /lib64/libz.so.1: could not read symbols: Invalid > operation > collect2: error: ld returned 1 exit status DSO is something like an auto-symbol-resolver (so linking in libraries that are used by other directly-linked libraries, google for with with fedora). DSO is deactivated on fedora, therefor you need to pass each library required to the linker. In the above case you need to additionally pass -lz to the linked (e.g. using LDLAGS=-lz), as suggested by gcc (which says: is defined in) Greetings fabian > > Could someone help me , to understand what happens ? > > Thanks in advance, > -- > Sérgio M. B. > > -- devel mailing list devel@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/devel
Re: what means is defined in DSO /lib64/libz.so.1
On Tue, 2012-03-06 at 17:10 +, Sérgio Basto wrote: > Hi , I found this error > > /usr/bin/ld: > /usr/lib/gcc/x86_64-redhat-linux/4.7.0/../../../../lib64/libgpac_static.a(base_encoding.o): > undefined reference to symbol 'deflate' > > /usr/bin/ld: note: 'deflate' is defined in DSO /lib64/libz.so.1 so try > adding it to the linker command > line > > /lib64/libz.so.1: could not read symbols: Invalid > operation > collect2: error: ld returned 1 exit status > > > Could someone help me , to understand what happens ? AIUI, it looks like the code you try to compile uses the deflate() function from libz, and doesn't link it directly (i.e. the "-lz" compiler option) but indirectly (i.e. links a library which uses libz). You need to explicitly link all libraries that you use, you may not depend on other libraries pulling these in. Nils -- Nils Philippsen "Those who would give up Essential Liberty to purchase Red Hat a little Temporary Safety, deserve neither Liberty n...@redhat.com nor Safety." -- Benjamin Franklin, 1759 PGP fingerprint: C4A8 9474 5C4C ADE3 2B8F 656D 47D8 9B65 6951 3011 -- devel mailing list devel@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/devel
what means is defined in DSO /lib64/libz.so.1
Hi , I found this error /usr/bin/ld: /usr/lib/gcc/x86_64-redhat-linux/4.7.0/../../../../lib64/libgpac_static.a(base_encoding.o): undefined reference to symbol 'deflate' /usr/bin/ld: note: 'deflate' is defined in DSO /lib64/libz.so.1 so try adding it to the linker command line /lib64/libz.so.1: could not read symbols: Invalid operation collect2: error: ld returned 1 exit status Could someone help me , to understand what happens ? Thanks in advance, -- Sérgio M. B. -- devel mailing list devel@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/devel
