Re: ecpg compile error on AIX
От | Tom Lane |
---|---|
Тема | Re: ecpg compile error on AIX |
Дата | |
Msg-id | 19040.1010451436@sss.pgh.pa.us обсуждение исходный текст |
Ответ на | Re: ecpg compile error on AIX (Peter Eisentraut <peter_e@gmx.net>) |
Список | pgsql-hackers |
Peter Eisentraut <peter_e@gmx.net> writes: > I should have said, I've never seen any warnings generated by > -Wcast-align. Interesting. On HP-PA with gcc 2.95.3 I see a ton of them. I'm too lazy to count 'em, but it's certainly in the thousands, eg from the first backend module to be compiled I get make[4]: Entering directory `/home/postgres/pgsql/src/backend/access/common' gcc -O2 -Wall -Wmissing-prototypes -Wmissing-declarations -g -Wcast-align -I../../../../src/include -c -o heaptuple.o heaptuple.c heaptuple.c: In function `ComputeDataSize': heaptuple.c:52: warning: cast increases required alignment of target type heaptuple.c: In function `DataFill': heaptuple.c:113: warning: cast increases required alignment of target type heaptuple.c:113: warning: cast increases required alignment of target type heaptuple.c:123: warning: cast increases required alignment of target type heaptuple.c:134: warning: cast increases required alignment of target type heaptuple.c: In function `nocachegetattr': heaptuple.c:299: warning: cast increases required alignment of target type heaptuple.c:299: warning: cast increases required alignment of target type heaptuple.c:357: warning: cast increases required alignment of target type heaptuple.c:360: warning: cast increases required alignment of target type heaptuple.c:360: warning: cast increases required alignment of target type heaptuple.c:400: warning: cast increases required alignment of target type heaptuple.c:408: warning: cast increases required alignment of target type heaptuple.c:408: warning: cast increases required alignment of target type heaptuple.c: In function `heap_copytuple': heaptuple.c:486: warning: cast increases required alignment of target type heaptuple.c: In function `heap_formtuple': heaptuple.c:608: warning: cast increases required alignment of target type heaptuple.c:610: warning: cast increases required alignment of target type heaptuple.c:610: warning: cast increases required alignment of target type heaptuple.c: In function `heap_modifytuple': heaptuple.c:680: warning: cast increases required alignment of target type heaptuple.c:680: warning: cast increases required alignment of target type heaptuple.c: In function `heap_addheader': heaptuple.c:765: warning: cast increases required alignment of target type heaptuple.c:767: warning: cast increases required alignment of target type heaptuple.c:767: warning: cast increases required alignment of target type Needless to say I'd be pretty much unable to spot any real warnings if we were to turn this on by default today. > Shouldn't the set of warnings at least be the same on all > platforms (at least those with the same integer size) or does it just warn > if there would actually be a problem on that platform? Apparently the latter. Curious; you'd think the former would be more useful. regards, tom lane
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