diff --git a/SHA256SUMS.sources b/SHA256SUMS.sources
index 60d3556..c030cc4 100644
--- a/SHA256SUMS.sources
+++ b/SHA256SUMS.sources
@@ -50,6 +50,7 @@ df807e694deea2dcba0c43af318394f3e3fcd52658c3b71b61dad0ce0c0cfb77  gnulib-30820c.
 1aeea67b7b3883ebcf2b90bc01f4182d7de073a052dabd3749f20c5aa4ad3e27  gnulib-b81ec69.tar.gz
 12cfa21abf618a274017d6b18e95fc6582519d7c08e2403e5c5772ccdd5b85f4  gnulib-d279bc.tar.gz
 a285dc300c3d9c25cc06e38827ef40f6073ec3b9b0fcb5bba433f943be92d8d4  gnulib-e017871.tar.gz
+588546b945bba4b70b6a3a616e80b4ab466e3f33024a352fc2198112cdbb3ae2  gperf-3.1.tar.gz
 a32032bab36208509466654df12f507600dfe0313feebbcd218c32a70bf72a16  grep-2.4.tar.gz
 1ca41818a23c9c59ef1d5e1d00c0d5eaa2285d931c0fb059637d7c0cc02ad967  gzip-1.2.4.tar.gz
 9f233d8b78e4351fe9dd2d50d83958a0e5af36f54e9818521458a08e058691ba  heirloom-devtools-070527.tar.bz2
diff --git a/parts.rst b/parts.rst
index 16e8914..f4c0cff 100644
--- a/parts.rst
+++ b/parts.rst
@@ -702,6 +702,11 @@ GCC 4.7.4 is the last version written in C. This time we build both C and C++ ba
 C++ backend has some dependency on ``gperf`` which is written in C++. Fortunately, it is
 easy to patch it out and resulting ``g++`` compiler is capable of building ``gperf``.
 
+gperf 3.1
+=========
+
+``gperf`` is a perfect hash function generator (hash function is injective).
+
 libunistring 0.9.10
 ===================
 
diff --git a/sysa.py b/sysa.py
index 8db652b..7690dd9 100755
--- a/sysa.py
+++ b/sysa.py
@@ -458,6 +458,9 @@ class SysA:
         # gcc 4.7.4
         self.get_file("https://mirrors.kernel.org/gnu/gcc/gcc-4.7.4/gcc-4.7.4.tar.bz2")
 
+        # gperf 3.1
+        self.get_file("https://mirrors.kernel.org/gnu/gperf/gperf-3.1.tar.gz")
+
         # libunistring 0.9.10
         self.get_file(["https://mirrors.kernel.org/gnu/libunistring/libunistring-0.9.10.tar.xz",
                        "https://git.savannah.gnu.org/cgit/gnulib.git/snapshot/gnulib-52a06cb3.tar.gz"])
diff --git a/sysa/gperf-3.1/checksums b/sysa/gperf-3.1/checksums
new file mode 100644
index 0000000..a0f49b1
--- /dev/null
+++ b/sysa/gperf-3.1/checksums
@@ -0,0 +1 @@
+1f2a11dd9afd812a40ab44e5297ef375daddeda589c79d08be65958430c4ef82  /image/bin/gperf
diff --git a/sysa/gperf-3.1/gperf-3.1.sh b/sysa/gperf-3.1/gperf-3.1.sh
new file mode 100755
index 0000000..2630683
--- /dev/null
+++ b/sysa/gperf-3.1/gperf-3.1.sh
@@ -0,0 +1,19 @@
+# SPDX-FileCopyrightText: 2021 Andrius Štikonas <andrius@stikonas.eu>
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+src_prepare() {
+    find . -name '*.info*' -delete
+
+    for d in doc tests lib src; do
+        cd $d
+        ln -s ../aclocal.m4 aclocal.m4
+        autoreconf-2.69 -fi
+        cd ..
+    done
+    autoreconf-2.69 -fi
+}
+
+src_configure() {
+    ./configure --prefix="${PREFIX}"
+}
diff --git a/sysa/run2.sh b/sysa/run2.sh
index f638a21..682f5d7 100755
--- a/sysa/run2.sh
+++ b/sysa/run2.sh
@@ -62,6 +62,8 @@ build zlib-1.2.11
 
 build gcc-4.7.4
 
+build gperf-3.1
+
 build libunistring-0.9.10
 
 if [ "$FORCE_TIMESTAMPS" = True ] ; then