Tom Lane <t...@sss.pgh.pa.us> wrote:
 
> It might be worth trying to clean up those warn_unused_result
> things, if other people are seeing those.
 
In `make world` I'm seeing:
 
scan.c: In function *yy_try_NUL_trans*:
scan.c:16256: warning: unused variable *yyg*
--
elog.c: In function *write_console*:
elog.c:1708: warning: ignoring return value of *write*, declared
with attribute warn_unused_result
elog.c: In function *write_pipe_chunks*:
elog.c:2401: warning: ignoring return value of *write*, declared
with attribute warn_unused_result
elog.c:2410: warning: ignoring return value of *write*, declared
with attribute warn_unused_result
--
common.c: In function *handle_sigint*:
common.c:247: warning: ignoring return value of *write*, declared
with attribute warn_unused_result
common.c:250: warning: ignoring return value of *write*, declared
with attribute warn_unused_result
common.c:251: warning: ignoring return value of *write*, declared
with attribute warn_unused_result
--
option.c: In function *parseCommandLine*:
option.c:92: warning: ignoring return value of *getcwd*, declared
with attribute warn_unused_result
option.c: In function *get_pkglibdir*:
option.c:336: warning: ignoring return value of *fgets*, declared
with attribute warn_unused_result
 
Example of a compile line showing a warning:
 
gcc -O2 -Wall -Wmissing-prototypes -Wpointer-arith
-Wdeclaration-after-statement -Wendif-labels -Wformat-security
-fno-strict-aliasing -fwrapv -g -I../../../../src/include
-D_GNU_SOURCE -I/usr/include/libxml2   -c -o elog.o elog.c -MMD -MP
-MF .deps/elog.Po
 
-Kevin

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