From c44647edb4eadcf10932b95a37bfa675d06acd7c Mon Sep 17 00:00:00 2001
From: Brad Barnett <127794626+bdbarnett@users.noreply.github.com>
Date: Tue, 22 Sep 2026 20:07:23 -0500
Subject: [PATCH] CircuitPython: compile the build stamp there too

#28 gave pygraphics __version__ and __revision__ by pointing the module
table at objects defined in gfx_build.c, but only micropython.mk compiled
that file, so CircuitPython's unix build failed at link with
pygraphics_version_obj and pygraphics_revision_obj undefined.
circuitpython.mk now compiles gfx_build.c and passes the same VERSION and
git describe micropython.mk does.

Proven: cmods' cp-unix build (10.3.0 coverage) links, and pygraphics
reports 0.0.38 / v0.0.32-78-g2f944ea-dirty on it.
---
 circuitpython.mk | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/circuitpython.mk b/circuitpython.mk
index 81fb147..fe70f39 100644
--- a/circuitpython.mk
+++ b/circuitpython.mk
@@ -22,7 +22,15 @@ endif
 CFLAGS += -I$(PYGRAPHICS_MOD_DIR)/src -DCIRCUITPY_PYGRAPHICS=1
 QSTR_DEFS += $(PYGRAPHICS_MOD_DIR)/src/pygraphics_qstrdefs.h
 
+# __version__ / __revision__, the same two strings micropython.mk passes;
+# gfx_build.c defines the objects the module table points at, so a build
+# that leaves it out fails at link, not at runtime.
+PYGRAPHICS_VERSION := $(shell cat $(PYGRAPHICS_MOD_DIR)/VERSION 2>/dev/null || echo 0.0.0+unknown)
+PYGRAPHICS_REVISION := $(shell git -C $(PYGRAPHICS_MOD_DIR) describe --always --dirty --abbrev=7 2>/dev/null || echo unknown)
+CFLAGS += -DPYGRAPHICS_VERSION='"$(PYGRAPHICS_VERSION)"' -DPYGRAPHICS_REVISION='"$(PYGRAPHICS_REVISION)"'
+
 GRAPHICS_SOURCES := \
+    $(PYGRAPHICS_MOD_DIR)/src/gfx_build.c \
     $(PYGRAPHICS_MOD_DIR)/src/gfx_module_mp.c \
     $(PYGRAPHICS_MOD_DIR)/src/gfx_bindings_mp.c \
     $(PYGRAPHICS_MOD_DIR)/src/gfx_canvas_mp.c \