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-rw-r--r--gnu/packages/lxde.scm14
1 files changed, 13 insertions, 1 deletions
diff --git a/gnu/packages/lxde.scm b/gnu/packages/lxde.scm
index fbf32bf337..cad5282e1a 100644
--- a/gnu/packages/lxde.scm
+++ b/gnu/packages/lxde.scm
@@ -137,7 +137,19 @@ able to change themes, icons, and fonts used by GTK+ applications.")
                (base32
                 "04n3vgh3ix12p8jfs4w0dyfq3anbjy33h7g53wbbqqc0f74xyplb"))))
     (build-system gnu-build-system)
-    (inputs `(("gtk+" ,gtk+-2)))
+    (arguments
+     `(#:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'xrandr-absolutely
+           ;; lxrandr is useless without xrandr and gives an unhelpful error
+           ;; message if it's not in $PATH, so make it a hard dependency.
+           (lambda* (#:key input #:allow-other-keys)
+             (substitute* "src/lxrandr.c"
+               (("(\"|')xrandr\"" _ match)
+                (string-append match (which "xrandr") "\"")))
+             #t)))))
+    (inputs `(("gtk+" ,gtk+-2)
+              ("xrandr" ,xrandr)))
     (native-inputs `(("intltool"   ,intltool)
                      ("pkg-config" ,pkg-config)))
     (synopsis "LXDE monitor configuration tool")