Additional options: 3. Just cast to unsigned long for the print. The program will still run correctly, there may be some truncation in the print. This is admittedly not a great option. 4. Use PRIu64 from inttypes.h.
Dean From: [email protected] [mailto:[email protected]] On Behalf Of Marciniszyn, Mike Sent: Thursday, January 17, 2013 9:22 AM To: Ido Shamai ([email protected]) Cc: Lacombe, John S; [email protected] Subject: [ewg] Compile issue on i386/i686 with auto* perftest Ido, I'm not sure what the support stance is on 32 bit builds but the new auto* save has turned what used to be a warning into an error. In the 2.0-0.8 tar ball: cc -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m32 -march=i686 -mtune=atom -fasynchronous-unwind-tables -Wall -g -D_GNU_SOURCE -O2 send_bw.c get_clock.c perftest_resources.c perftest_communication.c perftest_parameters.c multicast_resources.c -libverbs -lrdmacm -libumad -lm -o ib_send_bw perftest_parameters.c: In function 'check_link_and_mtu': perftest_parameters.c:846: warning: format '%lu' expects type 'long unsigned int', but argument 3 has type 'long long unsigned int' perftest_parameters.c: In function 'ctx_print_test_info': perftest_parameters.c:921: warning: format '%lu' expects type 'long unsigned int', but argument 2 has type 'long long unsigned int' In the rc5 2.0-0.25 tar ball: if gcc -DHAVE_CONFIG_H -I. -I. -I. -g -Wall -Werror -D_GNU_SOURCE -O2 -MT perftest_parameters.o -MD -MP -MF ".deps/perftest_parameters.Tpo" -c -o perftest_parameters.o `test -f 'src/perftest_parameters.c' || echo './'`src/perftest_parameters.c; \ then mv -f ".deps/perftest_parameters.Tpo" ".deps/perftest_parameters.Po"; else rm -f ".deps/perftest_parameters.Tpo"; exit 1; fi cc1: warnings being treated as errors src/perftest_parameters.c: In function 'check_link_and_mtu': src/perftest_parameters.c:1240: error: format '%lu' expects type 'long unsigned int', but argument 3 has type 'long long unsigned int' src/perftest_parameters.c: In function 'ctx_print_test_info': src/perftest_parameters.c:1325: error: format '%lu' expects type 'long unsigned int', but argument 2 has type 'long long unsigned int' make[1]: *** [perftest_parameters.o] Error 1 The older hardcoded make doesn't have -Werror. I guess there are two possible fixes: 1) Take the -Werror out of the configure.ac 2) Change the MTU_SIZE define to #define MTU_SIZE(mtu_ind) ((1UL << (MTU_FIX + mtu_ind))) Mike
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