lib9: build failure on mingw32

[mattn]

##### Building C bootstrap tool.
cmd/dist

##### Building compilers and Go bootstrap tool.
In file included from C:\Users\mattn\dev\go\src\lib9\_exits.c:29:0:
C:\Users\mattn\dev\go\include/libc.h:313:8: error: redefinition of 'struct timespec'
 struct timespec {
        ^
In file included from c:\mingw\include\unistd.h:95:0,
                 from C:\Users\mattn\dev\go\include/u.h:62,
                 from C:\Users\mattn\dev\go\src\lib9\_exits.c:28:
c:\mingw\include\parts\time.h:65:8: note: originally defined here
 struct timespec
        ^
In file included from C:\Users\mattn\dev\go\src\lib9\_exits.c:29:0:
C:\Users\mattn\dev\go\include/libc.h:321:12: error: conflicting types for 'nanosleep'
 extern int nanosleep(const struct timespec *rqtp, struct timespec *rmtp);
            ^
In file included from C:\Users\mattn\dev\go\include/u.h:62:0,
                 from C:\Users\mattn\dev\go\src\lib9\_exits.c:28:
c:\mingw\include\unistd.h:109:5: note: previous definition of 'nanosleep' was here
 int nanosleep( const struct timespec *period, struct timespec *residual )
     ^
In file included from C:\Users\mattn\dev\go\src\lib9\_p9dir.c:30:0:
C:\Users\mattn\dev\go\include/libc.h:313:8: error: redefinition of 'struct timespec'
 struct timespec {
        ^
In file included from c:\mingw\include\unistd.h:95:0,
                 from C:\Users\mattn\dev\go\include/u.h:62,
                 from C:\Users\mattn\dev\go\src\lib9\_p9dir.c:28:
c:\mingw\include\parts\time.h:65:8: note: originally defined here
 struct timespec
        ^
In file included from C:\Users\mattn\dev\go\src\lib9\_p9dir.c:30:0:
C:\Users\mattn\dev\go\include/libc.h:321:12: error: conflicting types for 'nanosleep'
 extern int nanosleep(const struct timespec *rqtp, struct timespec *rmtp);
            ^
In file included from C:\Users\mattn\dev\go\include/u.h:62:0,
                 from C:\Users\mattn\dev\go\src\lib9\_p9dir.c:28:
c:\mingw\include\unistd.h:109:5: note: previous definition of 'nanosleep' was here
 int nanosleep( const struct timespec *period, struct timespec *residual )
     ^
In file included from C:\Users\mattn\dev\go\src\lib9\atoi.c:29:0:
C:\Users\mattn\dev\go\include/libc.h:313:8: error: redefinition of 'struct timespec'
 struct timespec {
        ^
In file included from c:\mingw\include\unistd.h:95:0,
                 from C:\Users\mattn\dev\go\include/u.h:62,
                 from C:\Users\mattn\dev\go\src\lib9\atoi.c:28:
c:\mingw\include\parts\time.h:65:8: note: originally defined here
 struct timespec
        ^
In file included from C:\Users\mattn\dev\go\src\lib9\atoi.c:29:0:
C:\Users\mattn\dev\go\include/libc.h:321:12: error: conflicting types for 'nanosleep'
 extern int nanosleep(const struct timespec *rqtp, struct timespec *rmtp);
            ^
In file included from C:\Users\mattn\dev\go\include/u.h:62:0,
                 from C:\Users\mattn\dev\go\src\lib9\atoi.c:28:
c:\mingw\include\unistd.h:109:5: note: previous definition of 'nanosleep' was here
 int nanosleep( const struct timespec *period, struct timespec *residual )
     ^
In file included from C:\Users\mattn\dev\go\src\lib9\cleanname.c:30:0:
C:\Users\mattn\dev\go\include/libc.h:313:8: error: redefinition of 'struct timespec'
 struct timespec {
        ^
In file included from c:\mingw\include\unistd.h:95:0,
                 from C:\Users\mattn\dev\go\include/u.h:62,
                 from C:\Users\mattn\dev\go\src\lib9\cleanname.c:29:
c:\mingw\include\parts\time.h:65:8: note: originally defined here
 struct timespec
        ^
In file included from C:\Users\mattn\dev\go\src\lib9\cleanname.c:30:0:
C:\Users\mattn\dev\go\include/libc.h:321:12: error: conflicting types for 'nanosleep'
 extern int nanosleep(const struct timespec *rqtp, struct timespec *rmtp);
            ^
In file included from C:\Users\mattn\dev\go\include/u.h:62:0,
                 from C:\Users\mattn\dev\go\src\lib9\cleanname.c:29:
c:\mingw\include\unistd.h:109:5: note: previous definition of 'nanosleep' was here
 int nanosleep( const struct timespec *period, struct timespec *residual )
     ^
lib9
go tool dist: FAILED: gcc -Wall -Wstrict-prototypes -Wextra -Wunused -Wno-sign-compare -Wno-missing-braces -Wno-parentheses -Wno-unknown-pragmas -Wno-switch -Wno-comment -Wno-missing-field-initializers -Werror -fno-common -ggdb -pipe -Wuninitialized -O2 -fmessage-length=0 -c -m32 -I C:\Users\mattn\dev\go\include -DPLAN9PORT -I C:\Users\mattn\dev\go\src\lib9 -o C:\Users\mattn\AppData\Local\Temp\go7AEA.tmp\_exits.o C:\Users\mattn\dev\go\src\lib9\_exits.c
go tool dist: FAILED: gcc -Wall -Wstrict-prototypes -Wextra -Wunused -Wno-sign-compare -Wno-missing-braces -Wno-parentheses -Wno-unknown-pragmas -Wno-switch -Wno-comment -Wno-missing-field-initializers -Werror -fno-common -ggdb -pipe -Wuninitialized -O2 -fmessage-length=0 -c -m32 -I C:\Users\mattn\dev\go\include -DPLAN9PORT -I C:\Users\mattn\dev\go\src\lib9 -o C:\Users\mattn\AppData\Local\Temp\go7AEA.tmp\_p9dir.o C:\Users\mattn\dev\go\src\lib9\_p9dir.c
go tool dist: FAILED: gcc -Wall -Wstrict-prototypes -Wextra -Wunused -Wno-sign-compare -Wno-missing-braces -Wno-parentheses -Wno-unknown-pragmas -Wno-switch -Wno-comment -Wno-missing-field-initializers -Werror -fno-common -ggdb -pipe -Wuninitialized -O2 -fmessage-length=0 -c -m32 -I C:\Users\mattn\dev\go\include -DPLAN9PORT -I C:\Users\mattn\dev\go\src\lib9 -o C:\Users\mattn\AppData\Local\Temp\go7AEA.tmp\atoi.o C:\Users\mattn\dev\go\src\lib9\atoi.c
go tool dist: FAILED: gcc -Wall -Wstrict-prototypes -Wextra -Wunused -Wno-sign-compare -Wno-missing-braces -Wno-parentheses -Wno-unknown-pragmas -Wno-switch -Wno-comment -Wno-missing-field-initializers -Werror -fno-common -ggdb -pipe -Wuninitialized -O2 -fmessage-length=0 -c -m32 -I C:\Users\mattn\dev\go\include -DPLAN9PORT -I C:\Users\mattn\dev\go\src\lib9 -o C:\Users\mattn\AppData\Local\Temp\go7AEA.tmp\cleanname.o C:\Users\mattn\dev\go\src\lib9\cleanname.c

[mattn]

https://go-review.googlesource.com/#/c/2201/

[ianlancetaylor]

Which version of Go are you building?

[alexbrainman]

I would like to try and reproduce your error. How can I do that?

Alex

[mattn]

git HEAD. latest of mingw32 on 32bit

On 12/31/14, Ian Lance Taylor notifications@github.com wrote:

Which version of Go are you building?

---

Reply to this email directly or view it on GitHub:
#9472 (comment)

• Yasuhiro Matsumoto

[alexbrainman]

Everything builds properly here. I use

C:\go\root\src>gcc --version
gcc (GCC) 4.8.1
Copyright (C) 2013 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

[mattn]

I got build error on windows vista.

gcc (GCC) 4.8.1
Copyright (C) 2013 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

[alexbrainman]

I do not know what your problem is. We need to understand what is happening here before we can decide what to do next.

[mattn]

I can't build lib9 because struct timespec is redefined in libc.h

On 12/31/14, alexbrainman notifications@github.com wrote:

I do not know what your problem is. We need to understand what is happening
here before we can decide what to do next.

---

Reply to this email directly or view it on GitHub:
#9472 (comment)

• Yasuhiro Matsumoto

[mattn]

above is log with make.bat

On 12/31/14, Yasuhiro MATSUMOTO mattn.jp@gmail.com wrote:

I can't build libc9 because struct timeval is redefined in libc.h

On 12/31/14, alexbrainman notifications@github.com wrote:

I do not know what your problem is. We need to understand what is
happening
here before we can decide what to do next.

---

Reply to this email directly or view it on GitHub:
#9472 (comment)

• Yasuhiro Matsumoto

• Yasuhiro Matsumoto

[mattn]

Try this:

foo.c (This has includes and ifdef(s) similar to _p9dir.c and libc.h)

#include <unistd.h>

#ifdef _WIN32
#if !defined(_WIN64) && !defined(__MINGW64_VERSION_MAJOR)
struct timespec {
    int tv_sec;
    long tv_nsec;
};
#endif
#endif

gcc -Wall -Wstrict-prototypes -Wextra -Wunused -Wno-sign-compare -Wno-missing-braces -Wno-parentheses -Wno-unknown-pragmas -Wno-switch -Wno-comment -Wno-missing-field-initializers -Werror -fno-common -ggdb -pipe -Wuninitialized -O2 -fmessage-length=0 -c -m32 -I C:\Users\mattn\dev\go\include -DPLAN9PORT -I C:\Users\mattn\dev\go\src\lib9 foo.c 

foo.c:5:8: error: redefinition of 'struct timespec'
 struct timespec {
        ^
In file included from c:\mingw\include\unistd.h:95:0,
                 from foo.c:1:
c:\mingw\include\parts\time.h:65:8: note: originally defined here
 struct timespec
        ^