# warning "_BSD_SOURCE and _SVID_SOURCE are deprecated, use _DEFAULT_SOURCE"
   ^~~~~~~
gcc -c -O0 -ggdb -Wall -Wextra -I. -Ijansson/src -Ihttp-parser -o hiredis/async.o hiredis/async.c
In file included from /nix/store/lb3kkvyylnbcxn5jad9i11szxlhkpkjq-glibc-2.27-dev/include/bits/libc-header-start.h:33:0,
                 from /nix/store/lb3kkvyylnbcxn5jad9i11szxlhkpkjq-glibc-2.27-dev/include/stdlib.h:25,
                 from hiredis/async.c:33:
/nix/store/lb3kkvyylnbcxn5jad9i11szxlhkpkjq-glibc-2.27-dev/include/features.h:184:3: warning: #warning "_BSD_SOURCE and _SVID_SOURCE are deprecated, use _DEFAULT_SOURCE" [-Wcpp]
 # warning "_BSD_SOURCE and _SVID_SOURCE are deprecated, use _DEFAULT_SOURCE"
   ^~~~~~~
gcc -c -O0 -ggdb -Wall -Wextra -I. -Ijansson/src -Ihttp-parser -o jansson/src/dump.o jansson/src/dump.c
gcc -c -O0 -ggdb -Wall -Wextra -I. -Ijansson/src -Ihttp-parser -o jansson/src/error.o jansson/src/error.c
gcc -c -O0 -ggdb -Wall -Wextra -I. -Ijansson/src -Ihttp-parser -o jansson/src/hashtable.o jansson/src/hashtable.c
jansson/src/hashtable.c:65:21: warning: 'num_primes' defined but not used [-Wunused-const-variable=]
 static const size_t num_primes = sizeof(primes) / sizeof(size_t);
                     ^~~~~~~~~~
gcc -c -O0 -ggdb -Wall -Wextra -I. -Ijansson/src -Ihttp-parser -o jansson/src/load.o jansson/src/load.c
gcc -c -O0 -ggdb -Wall -Wextra -I. -Ijansson/src -Ihttp-parser -o jansson/src/strbuffer.o jansson/src/strbuffer.c
gcc -c -O0 -ggdb -Wall -Wextra -I. -Ijansson/src -Ihttp-parser -o jansson/src/utf.o jansson/src/utf.c
gcc -c -O0 -ggdb -Wall -Wextra -I. -Ijansson/src -Ihttp-parser -o jansson/src/value.o jansson/src/value.c
gcc -c -O0 -ggdb -Wall -Wextra -I. -Ijansson/src -Ihttp-parser -o jansson/src/variadic.o jansson/src/variadic.c
gcc -c -O0 -ggdb -Wall -Wextra -I. -Ijansson/src -Ihttp-parser -o http-parser/http_parser.o http-parser/http_parser.c
gcc -c -O0 -ggdb -Wall -Wextra -I. -Ijansson/src -Ihttp-parser -o b64/cencode.o b64/cencode.c
b64/cencode.c: In function 'base64_encode_block':
b64/cencode.c:50:11: warning: this statement may fall through [-Wimplicit-fallthrough=]
    result = (fragment & 0x003) << 4;
    ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
b64/cencode.c:51:2: note: here
  case step_B:
  ^~~~
b64/cencode.c:61:11: warning: this statement may fall through [-Wimplicit-fallthrough=]
    result = (fragment & 0x00f) << 2;
    ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
b64/cencode.c:62:2: note: here
  case step_C:
  ^~~~
gcc -o webdis webdis.o cmd.o worker.o slog.o server.o acl.o md5/md5.o sha1/sha1.o http.o client.o websocket.o pool.o conf.o formats/json.o formats/raw.o formats/common.o formats/custom-type.o hiredis/hiredis.o hiredis/sds.o hiredis/net.o hiredis/async.o jansson/src/dump.o jansson/src/error.o jansson/src/hashtable.o jansson/src/load.o jansson/src/strbuffer.o jansson/src/utf.o
jansson/src/value.o jansson/src/variadic.o http-parser/http_parser.o b64/cencode.o -levent -pthread
installing
install flags: install SHELL=/nix/store/xn5gv3lpfy91yvfy9b0i7klfcxh9xskz-bash-4.4-p19/bin/bash
mkdir -p //usr/local
mkdir: cannot create directory '//usr/local': Permission denied
make: *** [Makefile:45: //usr/local] Error 1
builder for '/nix/store/hz1x10dy2zyh3hrw1pi1nxj67phfl5fp-webdis.drv' failed with exit code 2
error: build of '/nix/store/hz1x10dy2zyh3hrw1pi1nxj67phfl5fp-webdis.drv' failed