Libuv: pthread_rwlock_t undefined on unix platform (ubuntu 16.10) with libuv 1.10.1 rebuild

[debosvi]

With simple inclusion of 'uv.h', gcc complains about 'pthread_rwlock_t' type unknown.

In file included from /home/vincent/usr/include/uv.h:62:0,
from /home/vincent/bozCommand/comps/libuv/files/test/helloworld.c:3:
/home/vincent/usr/include/uv-unix.h:137:9: error: unknown type name ‘pthread_rwlock_t’
typedef pthread_rwlock_t uv_rwlock_t;
^~~~

[saghul]

How are you compiling your application? Does libuv (and the test suite) compile?

[debosvi]

of course my lib is built and installed.
I used autogen and configure (by default) to install on $HOME/usr prefix.
'make check' succeeded without any issues.

/home/vincent/usr/include/uv.h installed header.
/home/vincent/bozCommand/comps/libuv/files/test/helloworld.c is my file to compile.

[debosvi]

my platform is ubuntu x64 16.10 with only native compiler gcc.

[saghul]

Can you paste your example code and how you're compiling it? The test suite uses locks, so the problem must be elsewhere.

[debosvi]

include

include

include

int main() {
uv_loop_t *loop = malloc(sizeof(uv_loop_t));
uv_loop_init(loop);

printf("Now quitting.\n");
uv_run(loop, UV_RUN_DEFAULT);

uv_loop_close(loop);
free(loop);
return 0;

}

[txdv]

what is the exact command line you are using to compile?

[debosvi]

gcc -Wall -Werror -o test main.c

[debosvi]

sorry complete command line is
/usr/bin/cc -I.include/public -I.include -I./comps/fork/files/include -I/usr/include -Wmissing-prototypes -Wbad-function-cast -Wshadow -Wfloat-equal -Wswitch-default -Wno-unused-result -O0 -ggdb -std=c99 -Wall -Wextra -Wmissing-declarations -Wwrite-strings -Wunknown-pragmas -Wformat-security -Wstrict-aliasing -Wreturn-type -Wmissing-noreturn -o comps/fork/files/app/child.c.o -c comps/fork/files/app/child.c

[saghul]

You need to have -lpthread. Or use pkg-config and get the required flags out of the installed pc file.

Closing since it's not a libuv issue.

[anko]

For future searchers with the same problem:

-std=c99 requests strict POSIX compliance; no extensions like pthread_rwlock_t. Use -std=gnu99 instead.

(Same for -std=c11: use -std=gnu11.)