On Wed, Jul 09, 2025 at 11:49:55AM -0400, Tom Lane wrote: > Not sure. Yesterday I saw such warnings from arowana, > boa, dhole, rhinoceros, and shelduck, eg > > arowana | 2025-07-08 04:54:18 | xpath.c:274:6: warning: 'workspace' > may be used uninitialized in this function [-Wmaybe-uninitialized] > arowana | 2025-07-08 04:54:18 | xpath.c:319:6: warning: 'workspace' > may be used uninitialized in this function [-Wmaybe-uninitialized] > arowana | 2025-07-08 04:54:18 | xpath.c:374:6: warning: 'workspace' > may be used uninitialized in this function [-Wmaybe-uninitialized] > arowana | 2025-07-08 04:54:18 | ../../src/include/postgres.h:329:2: > warning: 'result' may be used uninitialized in this function > [-Wmaybe-uninitialized] > > Didn't look to try to figure out what the common factor > among these machines is, but I think all of them are somewhat > dated, which is depressing. You'd hope that newer compilers > are more likely to find such issues, not less likely.
They are all using some gcc 4.X flavor, most with -O2 but not all. And -Wmaybe-uninitialized is included in my default switches with a gcc 14, and there is nothing with several levels of optimizations applied, up to -O3. :( -- Michael
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