diff --git a/ports/mpfr/build.sh b/ports/mpfr/build.sh
new file mode 100755
index 00000000..affc82ba
--- /dev/null
+++ b/ports/mpfr/build.sh
@@ -0,0 +1,10 @@
+#!/bin/bash ../install.sh
+
+NAME='mpfr'
+VERSION='4.2.1'
+DOWNLOAD_URL="https://ftp.gnu.org/gnu/mpfr/mpfr-$VERSION.tar.gz#116715552bd966c85b417c424db1bbdf639f53836eb361549d1f8d6ded5cb4c6"
+DEPENDENCIES=('gmp')
+CONFIGURE_OPTIONS=(
+	"--target=$BANAN_TOOLCHAIN_TRIPLE"
+	'--with-sysroot=/'
+)
diff --git a/ports/mpfr/patches/0001-add-banan_os-target.patch b/ports/mpfr/patches/0001-add-banan_os-target.patch
new file mode 100644
index 00000000..0fed95ae
--- /dev/null
+++ b/ports/mpfr/patches/0001-add-banan_os-target.patch
@@ -0,0 +1,12 @@
+diff -ruN mpfr-4.2.1/config.sub mpfr-4.2.1-banan_os/config.sub
+--- mpfr-4.2.1/config.sub	2023-08-22 10:47:14.000000000 +0300
++++ mpfr-4.2.1-banan_os/config.sub	2024-08-07 22:48:27.798804026 +0300
+@@ -1754,7 +1754,7 @@
+ 	     | onefs* | tirtos* | phoenix* | fuchsia* | redox* | bme* \
+ 	     | midnightbsd* | amdhsa* | unleashed* | emscripten* | wasi* \
+ 	     | nsk* | powerunix* | genode* | zvmoe* | qnx* | emx* | zephyr* \
+-	     | fiwix* )
++	     | fiwix* | banan_os* )
+ 		;;
+ 	# This one is extra strict with allowed versions
+ 	sco3.2v2 | sco3.2v[4-9]* | sco5v6*)