From 8682553498d32d3c18dea41c598ab40de18404a3 Mon Sep 17 00:00:00 2001
From: user <user@clank>
Date: Thu, 16 Jul 2026 07:30:34 +0200
Subject: tools: wc, head, and an argc/argv demo (args) + libc.c helpers

- c/libc.c: shared C helpers linked into every program - putu (print decimal),
  atou (parse decimal), argv_parse (tokenize getargs() into argc/argv).
- wc: count lines/words/chars of stdin. head [n]: first n lines (drains rest to
  EOF). args: argc/argv demo.
- pid now uses libc putu; build.sh links libc.c; Makefile CBLOBS + libc dep.
- README: document the new tools + argv_parse.
- verified: 'args one two three' -> argc=3/argv[..]; wc '2 3 16'; head 2.
---
 Makefile | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'Makefile')

diff --git a/Makefile b/Makefile
index 4d59135..857cc0a 100644
--- a/Makefile
+++ b/Makefile
@@ -19,9 +19,12 @@ $(BUILD)/%.o: src/%.asm | $(BUILD)
 
 # C programs: compiled with SDCC into ROM-bank blobs and INCBIN'd by programs.asm
 CBLOBS := c/chello.bin c/echo.bin c/true.bin c/false.bin c/uname.bin \
-          c/pid.bin c/cat.bin
+          c/pid.bin c/cat.bin c/wc.bin c/head.bin c/args.bin
 $(BUILD)/programs.o: $(CBLOBS)
 
+# C programs also depend on the shared libc sources
+$(CBLOBS): c/libc.c c/gbos.h
+
 c/%.bin: c/%.c c/crt0.s c/libc.s c/build.sh
 	sh c/build.sh $< $@
 
-- 
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