diff --git a/dev-embedded/avr_libc/avr_libc-2.1.0.recipe b/dev-embedded/avr_libc/avr_libc-2.1.0.recipe
new file mode 100644
index 000000000..0eb17c31f
--- /dev/null
+++ b/dev-embedded/avr_libc/avr_libc-2.1.0.recipe
@@ -0,0 +1,60 @@
+SUMMARY="C library for Atmel AVR microcontrollers"
+DESCRIPTION="
+AVR Libc is a Free Software project whose goal is to provide a high quality C
+library for use with GCC on Atmel AVR microcontrollers.
+
+Together, avr-binutils, avr-gcc, and avr-libc form the heart of the Free
+Software toolchain for the Atmel AVR microcontrollers.
+"
+HOMEPAGE="https://www.nongnu.org/avr-libc/"
+LICENSE="BSD (3-clause)"
+COPYRIGHT="1999-2022 Keith Gudger, Bjoern Haase, Steinar Haugen, Peter Jansen,
+	Reinhard Jessich, Magnus Johansson, Artur Lipowski, Marek Michalkiewicz,
+	Colin O'Flynn, Bob Paddock, Reiner Patommel, Michael Rickman,
+	Theodore A. Roth, Juergen Schilling, Philip Soeberg, Anatoly Sokolov,
+	Nils Kristian Strom, Michael Stumpf, Stefan Swanepoel, Eric B. Weddington,
+	Joerg Wunsch, Dmitry Xmelkov, The Regents of the University of California."
+SOURCE_URI="http://download.savannah.gnu.org/releases/avr-libc/avr-libc-$portVersion.tar.bz2"
+CHECKSUM_SHA256="0b84cee5c08b5d5cba67c36125e5aaa85251bc9accfba5773bfa87bc34b654e8"
+REVISION="1"
+ARCHITECTURES="any"
+SECONDARY_ARCHITECTURES="x86"
+
+PROVIDES="
+	avr_libc$secondaryArchSuffix = $portVersion
+	"
+
+REQUIRES="
+	haiku$secondaryArchSuffix
+	"
+BUILD_REQUIRES="
+	"
+BUILD_PREREQUIRES="
+	haiku${secondaryArchSuffix}_devel	
+	cmd:autoconf
+	cmd:automake
+	cmd:autoreconf
+	cmd:avr_as$secondaryArchSuffix >= 2.40
+	cmd:avr_gcc$secondaryArchSuffix >= 13.1
+	cmd:libtoolize$secondaryArchSuffix
+	cmd:make
+	"
+
+SOURCE_DIR="avr-libc-$portVersion"
+
+relativeInstallDir="develop/tools/avr"
+installDir="$prefix/$relativeInstallDir"
+
+BUILD()
+{	
+	autoreconf -fi
+	runConfigure ./configure --host=avr --build=$effectiveTargetMachineTriple \
+		--prefix=$installDir --libexecdir=$installDir/lib --mandir=$manDir \
+		--docdir=$docDir --target=avr
+	make $jobArgs
+}
+
+INSTALL()
+{
+	make install
+}
diff --git a/sys-devel/avr_gcc/avr_gcc-13.1.0.recipe b/sys-devel/avr_gcc/avr_gcc-13.1.0.recipe
index b7954443c..9cccdb3b7 100644
--- a/sys-devel/avr_gcc/avr_gcc-13.1.0.recipe
+++ b/sys-devel/avr_gcc/avr_gcc-13.1.0.recipe
@@ -40,7 +40,7 @@ REQUIRES="
 	lib:libmpc$secondaryArchSuffix
 	"
 BUILD_REQUIRES="
-	cmd:${targetU}_as
+	cmd:${targetU}_as >= 2.40
 	devel:libgmp$secondaryArchSuffix
 	devel:libmpfr$secondaryArchSuffix
 	devel:libmpc$secondaryArchSuffix