--- a/Makerules
+++ b/Makerules
@@ -119,13 +119,13 @@ else ifeq ($(OS),Linux)
 	SYS_GLUT_LIBS := -lglut -lGL
   endif
 
-  HAVE_X11 := $(shell pkg-config --exists x11 xext && echo yes)
+  HAVE_X11 := not-unless-portage-tells-me
   ifeq ($(HAVE_X11),yes)
 	X11_CFLAGS := $(shell pkg-config --cflags x11 xext)
 	X11_LIBS := $(shell pkg-config --libs x11 xext)
   endif
 
-  HAVE_LIBCRYPTO := $(shell pkg-config --exists 'libcrypto >= 1.1.0' && echo yes)
+  HAVE_LIBCRYPTO := not-unless-portage-tells-me
   ifeq ($(HAVE_LIBCRYPTO),yes)
 	LIBCRYPTO_CFLAGS := $(shell pkg-config --cflags libcrypto) -DHAVE_LIBCRYPTO
 	LIBCRYPTO_LIBS := $(shell pkg-config --libs libcrypto)