[RISOLTO] Snap7 e linux

[onire]

Salve ragazzi,
come scritto nell'altra sezione, sono nuovo di Lazarus, ma sono arrivato qui perchè al momento mi sembra l'unico ide multi piattaforma, almeno tra quelli open.

Essendo neofita, immagino che sto facendo qualche cavolata, ma sono giorni che ci sbatto la testa.
Ho scaricato questa libreria https://sourceforge.net/projects/snap7/files/1.4.2/ che serve per collegarsi ai PLC Siemens.
Nella cartella rich-demos ci sono diversi progetti per Lazarus compilabili per varie piattaforme, tra cui x86_64-win64 e x86_64-linux. Se compilo su windows utilizzando l'ultima versione di Lazarus, tutto fila liscio. Se faccio la stessa cosa su Linux, ho provato sia su Ubunu che Suse, ottengo un errore di linking.
Questo è l'output completo:

Codice: [Seleziona]

Compila il progetto, Destinazione: bin/clientdemo: Codice di uscita 1, Errori: 1, avvertimenti: 22, suggerimenti: 82
sc_info.pas(8,68) Hint: Unit "Arrow" not used in sc_info
cp_info.pas(8,68) Hint: Unit "Arrow" not used in cp_info
snap7.pas(1430,39) Hint: Local variable "CPP_tm" does not seem to be initialized
snap7.pas(1497,38) Hint: Function result variable does not seem to be initialized
snap7.pas(1506,38) Hint: Local variable "IsConnected" does not seem to be initialized
snap7.pas(1682,37) Hint: Function result variable does not seem to be initialized
snap7.pas(1689,29) Hint: Function result variable does not seem to be initialized
snap7.pas(1696,41) Hint: Function result variable does not seem to be initialized
snap7.pas(1696,33) Hint: Local variable "Requested" does not seem to be initialized
snap7.pas(1703,41) Hint: Local variable "PduLength" does not seem to be initialized
snap7.pas(1703,30) Hint: Function result variable does not seem to be initialized
snap7.pas(1730,39) Hint: Local variable "EvtReady" does not seem to be initialized
snap7.pas(1740,47) Hint: Function result variable does not seem to be initialized
snap7.pas(1740,39) Hint: Local variable "CpuStatus" does not seem to be initialized
snap7.pas(1740,28) Hint: Local variable "ServerStatus" does not seem to be initialized
snap7.pas(1748,50) Hint: Local variable "ClientsCount" does not seem to be initialized
snap7.pas(1748,36) Hint: Function result variable does not seem to be initialized
snap7.pas(1748,28) Hint: Local variable "ServerStatus" does not seem to be initialized
snap7.pas(1754,37) Hint: Function result variable does not seem to be initialized
snap7.pas(1760,35) Hint: Function result variable does not seem to be initialized
snap7.pas(1768,47) Hint: Local variable "ClientsCount" does not seem to be initialized
snap7.pas(1768,33) Hint: Local variable "CpuStatus" does not seem to be initialized
snap7.pas(1768,22) Hint: Function result variable does not seem to be initialized
snap7.pas(1910,33) Hint: Function result variable does not seem to be initialized
snap7.pas(1929,40) Hint: Function result variable does not seem to be initialized
snap7.pas(1929,32) Hint: Local variable "FSendTime" does not seem to be initialized
snap7.pas(1943,40) Hint: Local variable "FRecvTime" does not seem to be initialized
snap7.pas(1943,29) Hint: Function result variable does not seem to be initialized
snap7.pas(1960,30) Hint: Function result variable does not seem to be initialized
snap7.pas(2064,16) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2064,10) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2065,16) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2065,10) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2066,16) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2066,10) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2064,16) Warning: Converting pointers to signed integers may result in wrong comparison results and range errors, use an unsigned type instead.
snap7.pas(2065,16) Warning: Converting pointers to signed integers may result in wrong comparison results and range errors, use an unsigned type instead.
snap7.pas(2066,16) Warning: Converting pointers to signed integers may result in wrong comparison results and range errors, use an unsigned type instead.
snap7.pas(2074,16) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2074,10) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2075,16) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2075,10) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2076,16) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2076,10) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2074,16) Warning: Converting pointers to signed integers may result in wrong comparison results and range errors, use an unsigned type instead.
snap7.pas(2075,16) Warning: Converting pointers to signed integers may result in wrong comparison results and range errors, use an unsigned type instead.
snap7.pas(2076,16) Warning: Converting pointers to signed integers may result in wrong comparison results and range errors, use an unsigned type instead.
snap7.pas(2084,16) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2084,10) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2084,16) Warning: Converting pointers to signed integers may result in wrong comparison results and range errors, use an unsigned type instead.
snap7.pas(2092,16) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2092,10) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2093,16) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2093,10) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2094,16) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2094,10) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2092,16) Warning: Converting pointers to signed integers may result in wrong comparison results and range errors, use an unsigned type instead.
snap7.pas(2093,16) Warning: Converting pointers to signed integers may result in wrong comparison results and range errors, use an unsigned type instead.
snap7.pas(2094,16) Warning: Converting pointers to signed integers may result in wrong comparison results and range errors, use an unsigned type instead.
snap7.pas(2102,16) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2102,10) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2102,16) Warning: Converting pointers to signed integers may result in wrong comparison results and range errors, use an unsigned type instead.
snap7.pas(2185,9) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2185,3) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2186,9) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2186,3) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2187,9) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2187,3) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2185,9) Warning: Converting pointers to signed integers may result in wrong comparison results and range errors, use an unsigned type instead.
snap7.pas(2186,9) Warning: Converting pointers to signed integers may result in wrong comparison results and range errors, use an unsigned type instead.
snap7.pas(2187,9) Warning: Converting pointers to signed integers may result in wrong comparison results and range errors, use an unsigned type instead.
snap7.pas(2195,9) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2195,3) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2196,9) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2196,3) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2197,9) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2197,3) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2195,9) Warning: Converting pointers to signed integers may result in wrong comparison results and range errors, use an unsigned type instead.
snap7.pas(2196,9) Warning: Converting pointers to signed integers may result in wrong comparison results and range errors, use an unsigned type instead.
snap7.pas(2197,9) Warning: Converting pointers to signed integers may result in wrong comparison results and range errors, use an unsigned type instead.
snap7.pas(2204,9) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2204,3) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2204,9) Warning: Converting pointers to signed integers may result in wrong comparison results and range errors, use an unsigned type instead.
snap7.pas(2213,9) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2213,3) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2214,9) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2214,3) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2215,9) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2215,3) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2213,9) Warning: Converting pointers to signed integers may result in wrong comparison results and range errors, use an unsigned type instead.
snap7.pas(2214,9) Warning: Converting pointers to signed integers may result in wrong comparison results and range errors, use an unsigned type instead.
snap7.pas(2215,9) Warning: Converting pointers to signed integers may result in wrong comparison results and range errors, use an unsigned type instead.
snap7.pas(2222,9) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2222,3) Hint: Conversion between ordinals and pointers is not portable
snap7.pas(2222,9) Warning: Converting pointers to signed integers may result in wrong comparison results and range errors, use an unsigned type instead.
mainclient.pas(428,46) Hint: Parameter "opCode" not used
mainclient.pas(623,56) Hint: Local variable "Size" does not seem to be initialized
mainclient.pas(384,27) Hint: Parameter "Async" not used
mainclient.pas(808,40) Hint: Local variable "Status" does not seem to be initialized
mainclient.pas(281,46) Hint: Parameter "CloseAction" not used
mainclient.pas(1686,28) Hint: Local variable "Read" does not seem to be initialized
mainclient.pas(2110,40) Hint: Local variable "DT" does not seem to be initialized
mainclient.pas(2254,44) Hint: Local variable "Result" does not seem to be initialized
mainclient.pas(12,21) Hint: Unit "LMessages" not used in mainclient
clientdemo.lpr(24,1) Error: Error while linking

Immagino che gli manchi qualche libreria da linkare ma non ho capito quale.

Cosa mi consigliate di fare?

Grazie
Onire

[schumi]

ciao,
prova a vedere se questo ti aiuta https://forum.lazarus.freepascal.org/index.php?topic=36093.15

[onire]

ciao,
prova a vedere se questo ti aiuta https://forum.lazarus.freepascal.org/index.php?topic=36093.15

Grazie per il suggerimento, mi sono messo nella cartella del compilatore e ho dato i i comandi:

Codice: Bash [Seleziona]

cd /usr/share/fpcsrc/3.2.0
sudo make clean all OS_TARGET=linux CPU_TARGET=x86_64
sudo make install OS_TARGET=linux CPU_TARGET=x86_64 INSTALL_PREFIX=/usr

ma non ha avuto nessun effetto, o dovevo eseguire il codice nella cartella del progetto?

Comunque ho dato "Clean up and build" continua a non funzionare, ma è cambiato un po' l'output, adesso mi dice /usr/bin/ld.bfd: impossibile trovare -lsnap7

Questo è l'output completo: https://pastebin.com/7UHSsbfR

[xinyiman]

Quel messaggio è perchè non trova snap7 installato nel sistema. Lo hai installato?

[onire]

Hai ragione, c'era scritto anche nella documentazione, bisognava fare prima un make per creare la libreria. Come dicevo ho poca esperienza e poichè in windows non ho dovuto fare nulla, pensavo che anche in linux fosse uguale.
Adesso che sono riuscito a compilare inizia il bello, vorrà dire che mi sentirete di nuovo 

Grazie
Onire

[xinyiman]

Figurati. Visto che il problema è stato risolto, metti [RISOLTO] all'inizio del titolo del primo post del 3d. Così potrebbe essere d'aiuto in futuro a qualcun'altro.