cc -O2 -pipe -pthread -I/usr/local/include  -Wall -Wextra -Werror=implicit-function-declaration libintl/dcngettext_l.c -o libintl/dcngettext_l -D_GNU_SOURCE -D_BSD_SOURCE -D_ALL_SOURCE -D_DEFAULT_SOURCE  -lm -lpthread -lrt -L/usr/local/lib  -lintl -lstdthreads -lcrypt
libintl/dcngettext_l.c:20:18: error: call to undeclared function 'dcngettext_l'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
   20 |         char* output0 = dcngettext_l("os-test", input, input_plural, 0, LC_NUMERIC,
      |                         ^
libintl/dcngettext_l.c:20:18: note: did you mean 'dcngettext'?
/usr/local/include/libintl.h:350:14: note: 'dcngettext' declared here
  350 | extern char *dcngettext (const char *__domainname,
      |              ^
libintl/dcngettext_l.c:20:8: error: incompatible integer to pointer conversion initializing 'char *' with an expression of type 'int' [-Wint-conversion]
   20 |         char* output0 = dcngettext_l("os-test", input, input_plural, 0, LC_NUMERIC,
      |               ^         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   21 |                                      locale);
      |                                      ~~~~~~~
libintl/dcngettext_l.c:30:8: error: incompatible integer to pointer conversion initializing 'char *' with an expression of type 'int' [-Wint-conversion]
   30 |         char* output1 = dcngettext_l("os-test", input, input_plural, 1, LC_NUMERIC,
      |               ^         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   31 |                                      locale);
      |                                      ~~~~~~~
libintl/dcngettext_l.c:39:8: error: incompatible integer to pointer conversion initializing 'char *' with an expression of type 'int' [-Wint-conversion]
   39 |         char* output2 = dcngettext_l("os-test", input, input_plural, 2, LC_NUMERIC,
      |               ^         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   40 |                                      locale);
      |                                      ~~~~~~~
libintl/dcngettext_l.c:48:8: error: incompatible integer to pointer conversion initializing 'char *' with an expression of type 'int' [-Wint-conversion]
   48 |         char* output9 = dcngettext_l("os-test", input, input_plural, 9, LC_NUMERIC,
      |               ^         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   49 |                                      locale);
      |                                      ~~~~~~~
5 errors generated.