cc -pipe -O   -pthread -I/usr/local/include  -Wall -Wextra -Werror=implicit-function-declaration libintl/dngettext_l.c -o libintl/dngettext_l -D_GNU_SOURCE -D_BSD_SOURCE -D_ALL_SOURCE -D_DEFAULT_SOURCE  -lm -lpthread -lrt -L/usr/local/lib  -lintl -lrt -lcrypt
libintl/dngettext_l.c: In function 'main':
libintl/dngettext_l.c:20:18: error: implicit declaration of function 'dngettext_l'; did you mean 'dngettext'? [-Werror=implicit-function-declaration]
  char* output0 = dngettext_l("os-test", input, input_plural, 0, locale);
                  ^~~~~~~~~~~
                  dngettext
libintl/dngettext_l.c:20:18: warning: initialization of 'char *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
libintl/dngettext_l.c:28:18: warning: initialization of 'char *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
  char* output1 = dngettext_l("os-test", input, input_plural, 1, locale);
                  ^~~~~~~~~~~
libintl/dngettext_l.c:36:18: warning: initialization of 'char *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
  char* output2 = dngettext_l("os-test", input, input_plural, 2, locale);
                  ^~~~~~~~~~~
libintl/dngettext_l.c:44:18: warning: initialization of 'char *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
  char* output9 = dngettext_l("os-test", input, input_plural, 9, locale);
                  ^~~~~~~~~~~
cc1: some warnings being treated as errors