libs.c:30:3: Called procedure printf may access global stdout
libs.c:30:3: Undocumented modification of *stdout possible from call to printf:
printf(s)
libs.c:30:3: Return value (type int) ignored: printf(s)
libs.c:31:12: Undocumented use of global stderr
libs.c:30:3: Called procedure printf may access global stdout
libs.c:30:3: Undocumented modification of *stdout possible from call to printf:
printf(s)
libs.c:30:3: Return value (type int) ignored: printf(s)
libs.c:31:12: Undocumented use of global stderr