$ make
gcc -Wall -ggdb -D_GNU_SOURCE -I. -DSWM_LIB=\"/usr/local/lib/libswmhack.so.0.0\" -c -o scrotwm.o scrotwm.c
In file included from scrotwm.c:83:
/usr/include/X11/extensions/Xrandr.h:31:34: error: X11/extensions/randr.h: No such file or directory
In file included from scrotwm.c:83:
/usr/include/X11/extensions/Xrandr.h:59: error: expected specifier-qualifier-list before SizeID
/usr/include/X11/extensions/Xrandr.h:87: error: expected specifier-qualifier-list before Rotation
/usr/include/X11/extensions/Xrandr.h:101: error: expected specifier-qualifier-list before Rotation
/usr/include/X11/extensions/Xrandr.h:145: error: expected declaration specifiers or ... before Rotation
/usr/include/X11/extensions/Xrandr.h:153: error: expected declaration specifiers or ... before Rotation
/usr/include/X11/extensions/Xrandr.h:158: error: expected =, ,, ;, asm or __attribute__ before XRRConfigRotations
/usr/include/X11/extensions/Xrandr.h:166: error: expected =, ,, ;, asm or __attribute__ before XRRConfigCurrentConfiguration
/usr/include/X11/extensions/Xrandr.h:190: error: expected =, ,, ;, asm or __attribute__ before XRRRotations
/usr/include/X11/extensions/Xrandr.h:251: error: expected specifier-qualifier-list before Connection
/usr/include/X11/extensions/Xrandr.h:327: error: expected specifier-qualifier-list before Rotation
/usr/include/X11/extensions/Xrandr.h:348: error: expected declaration specifiers or ... before Rotation
scrotwm.c:84:34: error: X11/extensions/XTest.h: No such file or directory
scrotwm.c:99:4: error: #error XRandR versions less than 1.0 are not supported
scrotwm.c: In function pressbutton:
scrotwm.c:3091: warning: implicit declaration of function XTestFakeButtonEvent
scrotwm.c: In function setup_screens:
scrotwm.c:6267: error: RRScreenChangeNotifyMask undeclared (first use in this function)
scrotwm.c:6267: error: (Each undeclared identifier is reported only once
scrotwm.c:6267: error: for each function it appears in.)
scrotwm.c: In function main:
scrotwm.c:6430: error: RRScreenChangeNotify undeclared (first use in this function)
make: *** [scrotwm.o] Error 1