Qualcuno mi sa dire come mai gcc e di conseguenza kdevelop nn mi accettano l'include di xlib.h?

ogni volta che compilo
la librearia sul sistema non la trovo, dovrebbe far parte di xlibs-dev ma apt-get mi dice che probabilmente è un file diventato obsoleto :master:


in compilazione

codice:
c.c: In function ‘main’:
c.c:7: error: ‘Display’ undeclared (first use in this function)
c.c:7: error: (Each undeclared identifier is reported only once
c.c:7: error: for each function it appears in.)
c.c:7: error: ‘d’ undeclared (first use in this function)
c.c:9: error: ‘Window’ undeclared (first use in this function)
c.c:9: error: expected ‘;’ before ‘w’
c.c:10: error: ‘XEvent’ undeclared (first use in this function)
c.c:10: error: expected ‘;’ before ‘e’
c.c:21: error: ‘w’ undeclared (first use in this function)
c.c:25: error: ‘ExposureMask’ undeclared (first use in this function)
c.c:25: error: ‘KeyPressMask’ undeclared (first use in this function)
c.c:32: error: ‘e’ undeclared (first use in this function)
c.c:34: error: ‘Expose’ undeclared (first use in this function)
c.c:39: error: ‘KeyPress’ undeclared (first use in this function)
ace