From fc00c656c96528112d05cf0edf8631bd5eaea446 Mon Sep 17 00:00:00 2001
From: Kacper <kacper@mail.openlinux.dev>
Date: Sun, 7 Dec 2025 20:10:31 +0100
Subject: Add build system scaffolding and libc headers

---
 lib/libc/ctype/islower.c | 8 ++++++++
 1 file changed, 8 insertions(+)
 create mode 100644 lib/libc/ctype/islower.c

(limited to 'lib/libc/ctype/islower.c')

diff --git a/lib/libc/ctype/islower.c b/lib/libc/ctype/islower.c
new file mode 100644
index 00000000..34980da6
--- /dev/null
+++ b/lib/libc/ctype/islower.c
@@ -0,0 +1,8 @@
+#include <libc.h>
+
+int islower(int c)
+{
+	return (unsigned)c - 'a' < 26;
+}
+
+weak_reference(islower, islower_l);
-- 
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