comptest118.c:3:24: error: call to undeclared library function 'strrchr' with type 'char *(const char *, int)'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
int main() { char *x = strrchr("test", 'e'); if (x == NULL) return 0; else return 1; }
                       ^
comptest118.c:3:24: note: include the header <string.h> or explicitly provide a declaration for 'strrchr'
comptest118.c:3:24: error: call to undeclared library function 'strrchr' with type 'char *(const char *, int)'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
int main() { char *x = strrchr("test", 'e'); if (x == NULL) return 0; else return 1; }
                       ^
comptest118.c:3:24: note: include the header <string.h> or explicitly provide a declaration for 'strrchr'
comptest118.c:3:25: warning: 'RSA_generate_key' is deprecated [-Wdeprecated-declarations]
int main() { RSA *rsa = RSA_generate_key(1024, RSA_F4, NULL, NULL); if (rsa == NULL) return 0; else return 1; }
                        ^
/usr/include/openssl/rsa.h:235:1: note: 'RSA_generate_key' has been explicitly marked deprecated here
DEPRECATEDIN_0_9_8(RSA *RSA_generate_key(int bits, unsigned long e, void
^
/usr/include/x86_64-pc-linux-gnu/openssl/opensslconf.h:172:34: note: expanded from macro 'DEPRECATEDIN_0_9_8'
# define DEPRECATEDIN_0_9_8(f)   DECLARE_DEPRECATED(f)
                                 ^
/usr/include/x86_64-pc-linux-gnu/openssl/opensslconf.h:118:55: note: expanded from macro 'DECLARE_DEPRECATED'
#   define DECLARE_DEPRECATED(f)    f __attribute__ ((deprecated));
                                                      ^