usr: libc: Add math.h + musl math impl portexpt

Signed-off-by: Ian Moffett <ian@osmora.org>

1 files changed, 7 insertions, 0 deletions

diff --git a/lib/libc/src/musl-math/sqrtl.c b/lib/libc/src/musl-math/sqrtl.c
new file mode 100644
index 0000000..83a8f80
--- /dev/null
+++ b/lib/libc/src/musl-math/sqrtl.c
@@ -0,0 +1,7 @@
+#include <math.h>
+
+long double sqrtl(long double x)
+{
+	/* FIXME: implement in C, this is for LDBL_MANT_DIG == 64 only */
+	return sqrt(x);
+}