diff --git a/makefile b/makefile
index a193183..aa1b907 100644
--- a/makefile
+++ b/makefile
@@ -87,16 +87,34 @@ LINT_TARGET = SplitLint
 # pkg-config first because that is what a packaged Raylib provides, and a bare -lraylib
 # after it because a Raylib built from source usually does not install one.
 RAYLIB_CFLAGS := $(shell pkg-config --cflags raylib 2>/dev/null)
-RAYLIB_LIBS   := $(shell pkg-config --libs raylib 2>/dev/null)
-ifeq ($(strip $(RAYLIB_LIBS)),)
-# The -lm is not spare, even though MATHLIB names it again on the link line below. This
-# variable is what the probe underneath test-links with, and Raylib does not link without it,
-# so taking it out here does not tidy a duplicate - it makes the probe say Raylib is missing.
-RAYLIB_LIBS := -lraylib -lm
-endif
-HAVE_RAYLIB := $(shell printf '#include <raylib.h>\nint main(void){return (int)GetTime();}\n' \
-                 | $(CC) -x c - -o /dev/null $(RAYLIB_CFLAGS) $(RAYLIB_LIBS) 2>/dev/null \
-                 && echo yes)
+RAYLIB_PKG    := $(shell pkg-config --libs raylib 2>/dev/null)
+
+# ---- The flags are FOUND rather than assumed ----
+#
+# What a static Raylib needs beside itself changes with the version. Six's GetClipboardImage
+# calls X11 directly, so -lX11 became necessary on a Linux desktop where five did not want it
+# - and because it is a static archive, one function nobody calls drags the whole object in
+# and every X symbol with it.
+#
+# THE OLD SHAPE FAILED IN THE WORST WAY. One hardcoded guess was test-linked, and when the
+# guess went short the probe said Raylib was not installed - so make quietly stopped building
+# Voyager and said so in the words it uses for a machine with no graphics library at all. The
+# answer looked like an absence and was a missing flag.
+#
+# So the candidates are tried in order and the first that links is the answer. The probe and
+# the flags are now the same thing rather than two facts that can disagree.
+#
+# GetTime is enough to catch it because a static link pulls objects, not functions: it lives
+# in the same object as the clipboard code, so a program that calls it needs everything that
+# code needs. -lm is not spare either - Raylib does not link without it, so dropping it here
+# does not tidy a duplicate, it makes the probe say Raylib is missing.
+RAYLIB_LIBS := $(shell for libs in "$(RAYLIB_PKG)" "-lraylib -lm" "-lraylib -lm -lX11"; do \
+                   [ -z "$$libs" ] && continue; \
+                   printf '#include <raylib.h>\nint main(void){return (int)GetTime();}\n' \
+                     | $(CC) -x c - -o /dev/null $(RAYLIB_CFLAGS) $$libs 2>/dev/null \
+                     && { printf '%s' "$$libs"; break; }; \
+               done)
+HAVE_RAYLIB := $(if $(strip $(RAYLIB_LIBS)),yes,)
 
 # Default target: the machine, its three host-side tools, and Voyager where it can be built.
 #