Add build system scaffolding and libc headers

1 files changed, 14 insertions, 0 deletions

diff --git a/lib/libc/wctype/iswprint.c b/lib/libc/wctype/iswprint.c
new file mode 100644
index 00000000..f0b26fbf
--- /dev/null
+++ b/lib/libc/wctype/iswprint.c
@@ -0,0 +1,14 @@
+#include <libc.h>
+#include <wctype.h>
+
+int iswprint(wint_t wc)
+{
+	return (wc >= 0x20 && wc <= 0x7E) ||
+	       (wc >= 0xA0 && wc <= 0x10FFFF && (wc < 0xFDD0 || wc > 0xFDEF) &&
+		(wc & 0xFFFE) != 0xFFFE);
+}
+
+weak int iswprint_l(wint_t wc, locale_t unused locale)
+{
+	return iswprint(wc);
+}