Hi Bruno, On 8/28/19 4:09 PM, Bruno Haible wrote: > Hi Tim, > >> Compiling on FreeBSD 12 gives a warning per use of c_ macros, for example >> >> http_parse.c:187:10: warning: 'c_isblank' was marked unused but was used >> [-Wused-but-marked-unused] >> while (c_isblank(*s)) s++; >> >> >> This is true also for c_isdigit, c_isspace, etc. > > A bit more details, please: > - Which version of gcc or clang is this? > - Where does the option -Wused-but-marked-unused come from? Is it part > of -Wall, or did you or your package add it explicitly?
From config.log: FreeBSD clang version 6.0.0 (tags/RELEASE_600/final 326565) (based on LLVM 6.0.0) Target: x86_64-unknown-freebsd11.2 Thread model: posix InstalledDir: /usr/bin The option -Wused-but-marked-unused is indirectly activated by -Weverything, which is set during the ./configure run (kind of a manywarnings module). So it's not part of $CFLAGS or $CPPFLAGS but later used as part of AM_CFLAGS. I do not see that warning on Linux, with any version of clang (3.8, ... 9) or gcc (4.3, ..., 9.2). And I wonder why do the c_ macros are marked UNUSED at all (I assume that gnulib does it for some reason) ? Regards, Tim
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