cc -std=c99 -DCONFIG_XINERAMA -DCONFIG_LIBCONFIG  -DCONFIG_REGEX_PCRE -DCONFIG_REGEX_PCRE_JIT -DCONFIG_VSYNC_DRM -DCONFIG_VSYNC_OPENGL -DCONFIG_VSYNC_OPENGL_GLSL -DCONFIG_VSYNC_OPENGL_FBO -DCONFIG_VSYNC_OPENGL_VBO -DCONFIG_DBUS -DCONFIG_XSYNC -DCONFIG_C2 -DCOMPTON_VERSION="\"git-v0.1_beta2-95-g241bbc5-2018-02-22\""  -DNDEBUG -O2 -D_FORTIFY_SOURCE=2 -Wall   -I/usr/include/libdrm -I/usr/include/dbus-1.0 -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -c src/compton.c
In file included from src/compton.h:10:0,
                 from src/compton.c:11:
src/common.h: In function ‘xr_sync_’:
src/common.h:2480:12: warning: unused variable ‘triggered’ [-Wunused-variable]
       Bool triggered = False;
            ^~~~~~~~~
In file included from src/compton.c:11:0:
src/compton.h: In function ‘set_tgt_clip’:
src/compton.h:726:3: warning: enumeration value ‘NUM_BKEND’ not handled in switch [-Wswitch]
   switch (ps->o.backend) {
   ^~~~~~
src/compton.c: In function ‘win_paint_win’:
src/compton.c:1704:5: warning: enumeration value ‘NUM_BKEND’ not handled in switch [-Wswitch]
     switch (ps->o.backend) {
     ^~~~~~
src/compton.c: In function ‘win_update_focused’:
src/compton.c:3450:8: warning: unused variable ‘focused_old’ [-Wunused-variable]
   bool focused_old = w->focused;
        ^~~~~~~~~~~
src/compton.c: In function ‘init_filters’:
src/compton.c:6615:5: warning: enumeration value ‘NUM_BKEND’ not handled in switch [-Wswitch]
     switch (ps->o.backend) {
     ^~~~~~
At top level:
src/compton.c:2678:1: warning: ‘win_upd_run’ defined but not used [-Wunused-function]
 win_upd_run(session_t *ps, win *w, win_upd_t *pupd) {
 ^~~~~~~~~~~
cc -std=c99 -DCONFIG_XINERAMA -DCONFIG_LIBCONFIG  -DCONFIG_REGEX_PCRE -DCONFIG_REGEX_PCRE_JIT -DCONFIG_VSYNC_DRM -DCONFIG_VSYNC_OPENGL -DCONFIG_VSYNC_OPENGL_GLSL -DCONFIG_VSYNC_OPENGL_FBO -DCONFIG_VSYNC_OPENGL_VBO -DCONFIG_DBUS -DCONFIG_XSYNC -DCONFIG_C2 -DCOMPTON_VERSION="\"git-v0.1_beta2-95-g241bbc5-2018-02-22\""  -DNDEBUG -O2 -D_FORTIFY_SOURCE=2 -Wall   -I/usr/include/libdrm -I/usr/include/dbus-1.0 -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -c src/opengl.c
In file included from src/opengl.h:11:0,
                 from src/opengl.c:11:
src/common.h: In function ‘xr_sync_’:
src/common.h:2480:12: warning: unused variable ‘triggered’ [-Wunused-variable]
       Bool triggered = False;
            ^~~~~~~~~
src/opengl.c: In function ‘glx_init_kawase_blur’:
src/opengl.c:624:7: warning: format not a string literal and no format arguments [-Wformat-security]
       sprintf(pc, FRAG_SHADER_KAWASE_DOWN);
       ^~~~~~~
src/opengl.c:672:7: warning: format not a string literal and no format arguments [-Wformat-security]
       sprintf(pc, FRAG_SHADER_KAWASE_UP);
       ^~~~~~~
At top level:
src/opengl.c:2153:1: warning: ‘glx_render_dots’ defined but not used [-Wunused-function]
 glx_render_dots(session_t *ps, int dx, int dy, int width, int height, int z,
 ^~~~~~~~~~~~~~~
src/opengl.c:2117:1: warning: ‘glx_render_color’ defined but not used [-Wunused-function]
 glx_render_color(session_t *ps, int dx, int dy, int width, int height, int z,
 ^~~~~~~~~~~~~~~~
cc -std=c99 -DCONFIG_XINERAMA -DCONFIG_LIBCONFIG  -DCONFIG_REGEX_PCRE -DCONFIG_REGEX_PCRE_JIT -DCONFIG_VSYNC_DRM -DCONFIG_VSYNC_OPENGL -DCONFIG_VSYNC_OPENGL_GLSL -DCONFIG_VSYNC_OPENGL_FBO -DCONFIG_VSYNC_OPENGL_VBO -DCONFIG_DBUS -DCONFIG_XSYNC -DCONFIG_C2 -DCOMPTON_VERSION="\"git-v0.1_beta2-95-g241bbc5-2018-02-22\""  -DNDEBUG -O2 -D_FORTIFY_SOURCE=2 -Wall   -I/usr/include/libdrm -I/usr/include/dbus-1.0 -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -c src/dbus.c
In file included from src/dbus.h:11:0,
                 from src/dbus.c:11:
src/common.h: In function ‘xr_sync_’:
src/common.h:2480:12: warning: unused variable ‘triggered’ [-Wunused-variable]
       Bool triggered = False;
            ^~~~~~~~~
cc -std=c99 -DCONFIG_XINERAMA -DCONFIG_LIBCONFIG  -DCONFIG_REGEX_PCRE -DCONFIG_REGEX_PCRE_JIT -DCONFIG_VSYNC_DRM -DCONFIG_VSYNC_OPENGL -DCONFIG_VSYNC_OPENGL_GLSL -DCONFIG_VSYNC_OPENGL_FBO -DCONFIG_VSYNC_OPENGL_VBO -DCONFIG_DBUS -DCONFIG_XSYNC -DCONFIG_C2 -DCOMPTON_VERSION="\"git-v0.1_beta2-95-g241bbc5-2018-02-22\""  -DNDEBUG -O2 -D_FORTIFY_SOURCE=2 -Wall   -I/usr/include/libdrm -I/usr/include/dbus-1.0 -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -c src/c2.c
In file included from src/c2.h:11:0,
                 from src/c2.c:11:
src/common.h: In function ‘xr_sync_’:
src/common.h:2480:12: warning: unused variable ‘triggered’ [-Wunused-variable]
       Bool triggered = False;
            ^~~~~~~~~
cc -std=c99 -DCONFIG_XINERAMA -DCONFIG_LIBCONFIG  -DCONFIG_REGEX_PCRE -DCONFIG_REGEX_PCRE_JIT -DCONFIG_VSYNC_DRM -DCONFIG_VSYNC_OPENGL -DCONFIG_VSYNC_OPENGL_GLSL -DCONFIG_VSYNC_OPENGL_FBO -DCONFIG_VSYNC_OPENGL_VBO -DCONFIG_DBUS -DCONFIG_XSYNC -DCONFIG_C2 -DCOMPTON_VERSION="\"git-v0.1_beta2-95-g241bbc5-2018-02-22\""  -Wl,-O1 -Wl,--as-needed -DNDEBUG -O2 -D_FORTIFY_SOURCE=2 -Wall -o compton compton.o opengl.o dbus.o c2.o -lGL -lm -lrt -lpcre -lXcomposite -lXdamage -lXfixes -lXrender -lX11 -lXext -lXrandr -lXinerama -lconfig -ldbus-1