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Date: Fri, 23 Oct 2020 11:11:39 +0200
From: Szabolcs Nagy <nsz@...t70.net>
To: Chen Wang <unicorn_wang@...look.com>
Cc: musl <musl@...ts.openwall.com>
Subject: Re: Re: 回复: issue when
running libc-test
* Chen Wang <unicorn_wang@...look.com> [2020-10-23 16:53:14 +0800]:
> Yes, I think it should be conditional silenced for musl, otherwise it has blocked following builds, such as for main.exe and runtest.exe.
> So I think it is an issue, right?
oh
for me it does ot break the entire test build, just src/api/main.exe.
> 发件人： Szabolcs Nagy
> 发送时间： 2020-10-23 16:48
> 收件人： Chen Wang
> 抄送： musl
> 主题： Re: [musl]回复: issue when running libc-test
> * Chen Wang <unicorn_wang@...look.com> [2020-10-23 15:19:05 +0800]:
> > Correct some comments in last email. The issue is not due to lacking of header file, it should be due to some constants are lost, I paste the whole error report here FYR:
> >
> > ../install/bin/musl-gcc -Isrc/common -Isrc/common -pipe -std=c99 -D_POSIX_C_SOURCE=200809L -Wall -Wno-unused-function -Wno-missing-braces -Wno-unused -Wno-overflow -Wno-unknown-pragmas -fno-builtin -frounding-math -Werror=implicit-function-declaration -Werror=implicit-int -Werror=pointer-sign -Werror=pointer-arith -g -D_FILE_OFFSET_BITS=64 -pedantic-errors -Werror -Wno-unused -D_XOPEN_SOURCE=700 -c -o src/api/unistd.o src/api/unistd.c 2>src/api/unistd.o.err || echo BUILDERROR src/api/unistd.o; cat src/api/unistd.o.err
> > BUILDERROR src/api/unistd.o
> > src/api/unistd.c: In function ‘f’:
> > src/api/unistd.c:87:3: error: ‘_CS_POSIX_V7_THREADS_CFLAGS’ undeclared (first use in this function)
> > 87 | C(_CS_POSIX_V7_THREADS_CFLAGS)
> > | ^~~~~~~~~~~~~~~~~~~~~~~~~~~
> > src/api/unistd.c:5:21: note: in definition of macro ‘C’
> > 5 | #define C(n) switch(n){case n:;}
> > | ^
> > src/api/unistd.c:87:3: note: each undeclared identifier is reported only once for each function it appears in
> > 87 | C(_CS_POSIX_V7_THREADS_CFLAGS)
> > | ^~~~~~~~~~~~~~~~~~~~~~~~~~~
> > src/api/unistd.c:5:21: note: in definition of macro ‘C’
> > 5 | #define C(n) switch(n){case n:;}
> > | ^
> > src/api/unistd.c:88:3: error: ‘_CS_POSIX_V7_THREADS_LDFLAGS’ undeclared (first use in this function)
> > 88 | C(_CS_POSIX_V7_THREADS_LDFLAGS)
> > | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
> > src/api/unistd.c:5:21: note: in definition of macro ‘C’
> > 5 | #define C(n) switch(n){case n:;}
> > | ^
> > src/api/unistd.c:117:3: error: ‘_PC_TIMESTAMP_RESOLUTION’ undeclared (first use in this function)
> > 117 | C(_PC_TIMESTAMP_RESOLUTION)
> > | ^~~~~~~~~~~~~~~~~~~~~~~~
> > src/api/unistd.c:5:21: note: in definition of macro ‘C’
> > 5 | #define C(n) switch(n){case n:;}
> > | ^
> > src/api/unistd.c:238:3: error: ‘_SC_XOPEN_UUCP’ undeclared (first use in this function)
> > 238 | C(_SC_XOPEN_UUCP)
> > | ^~~~~~~~~~~~~~
> > src/api/unistd.c:5:21: note: in definition of macro ‘C’
> > 5 | #define C(n) switch(n){case n:;}
> > | ^
> >
> > and this would cause the following main.exe and runtest.exe failed to be built.
>
> this is expected:
>
> posix requires these macros but musl does not define them.
> in practice they are unlikely to be needed so i guess
> these should be silenced in some way.
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