From: "Lewis G Rosenthal" Received: from [50.73.8.217] (account lgrosenthal@2rosenthals.com HELO [192.168.200.20]) by 2rosenthals.com (CommuniGate Pro SMTP 5.4.10) with ESMTPSA id 3012431 for gnuports@2rosenthals.com; Tue, 01 Feb 2022 08:24:47 -0500 Subject: Re: [GNU Ports] Building privoxy - need to specify PTHREAD_LIB - why? To: GNU Ports for eCS Mailing List References: Organization: Rosenthal & Rosenthal, LLC Message-ID: <61F9349C.6030208@2rosenthals.com> Date: Tue, 1 Feb 2022 08:24:44 -0500 User-Agent: Mozilla/5.0 (OS/2; Warp 4.5; rv:38.0) Gecko/20100101 Firefox/38.0 SeaMonkey/2.35 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Hi, Dave... On 02/01/22 12:52 am, Dave Yeo wrote: > On 01/31/22 09:12 PM, Steven Levine wrote: >> In , on 02/01/22 >> at 03:07 PM, "Paul Smedley" said: >> >> Hi guys, >> >>> Im assuming that on some platforms, adding -pthreads to the gcc command >>> line causes -lpthreads to be added by gcc automatically. >> See: >> >> https://stackoverflow.com/questions/2127797/significance-of-pthread-flag-when-compiling >> >> >> >> It would appear that even though our built-in specs understand pthread, we >> don't understand it quite as fully as gcc on other platforms. > > I see some configure scripts doing 3 or 4 pthread checks before deciding > on the one to use for us. > BTW, doesn't privoxy have native OS/2 threads support or was it removed? > Dave > Hmmm... Using the configure option: --disable-pthread configure gives me the following ominous message: checking pthread.h presence... yes checking for pthread.h... yes configure: WARNING: pthreads seem to be available but you are using --disable-pthread. configure: WARNING: This is almost always a mistake and can render Privoxy unacceptable slow. configure: WARNING: Also various Privoxy features only work when using threads and won't even compile without them. Compiling, I get (as a start): gcc.exe -c -pipe -g -O2 -Zexe -DNDEBUG -Wall cgisimple.c -o cgisimple.o cgisimple.c: In function 'cgi_show_client_tags': cgisimple.c:376:10: warning: implicit declaration of function 'privoxy_mutex_lock' \ [-Wimplicit-function-declaration] 376 | privoxy_mutex_lock(&client_tags_mutex); I'm not sure what else might need to be done to use native threads vs POSIX. I'll re-read configure as time permits. Thanks for the suggestion. PS - I'll bet this just builds fine with EMX. LOL -- Lewis ------------------------------------------------------------- Lewis G Rosenthal, CNA, CLP, CLE, CWTS, EA Rosenthal & Rosenthal, LLC www.2rosenthals.com visit my IT blog www.2rosenthals.net/wordpress -------------------------------------------------------------