diff --git a/README.md b/README.md
index 065e0d4..ce60fd0 100644
--- a/README.md
+++ b/README.md
@@ -317,20 +317,25 @@ particularly regarding floats, in the first `musl`.
 Now that we have a 'fixed' `musl`, we now recompile `tcc` as `tcc` uses floats
 extensively.
 
-#### Part 25: m4 1.4.7
+#### Part 25: bzip2 1.0.8
+
+`bzip2` is rebuilt unpatched with the new tcc and musl fixing issues with reading
+files from stdin that existed in the previous build.
+
+#### Part 26: m4 1.4.7
 
 `m4` is the first piece of software we need in the autotools suite, flex 2.6.4
 and bison.  It allows macros to be defined and files to be generated from those
 macros.
 
-#### Part 26: flex 2.6.14
+#### Part 27: flex 2.6.14
 
 We recompile unpatched GNU `flex` using older flex 2.5.11. This is again a two
 stage process, first compiling flex using `scan.c` (from `scan.l`) created by
 old flex, then recompile `scan.c` using the new version of flex to remove any
 buggy artifacts from the old flex.
 
-#### Part 27: bison 3.4.1
+#### Part 28: bison 3.4.1
 
 GNU `bison` is a parser generator. With `m4` and `flex` we can now bootstrap it
 following https://gitlab.com/giomasce/bison-bootstrap. It's a 3 stage process:
@@ -341,28 +346,28 @@ following https://gitlab.com/giomasce/bison-bootstrap. It's a 3 stage process:
 
 Finally we have a fully functional `bison` executable.
 
-#### Part 28: grep 2.4
+#### Part 29: grep 2.4
 
 GNU `grep` is a pattern matching utility. Is is not immediately needed but will
 be useful later for autotools.
 
-#### Part 29: diffutils 2.7
+#### Part 30: diffutils 2.7
 
 `diffutils` is useful for comparing two files. It is not immediately needed but
 is required later for autotools.
 
-#### Part 30: coreutils 5.0
+#### Part 31: coreutils 5.0
 
 `coreutils` is rebuilt against musl.  Additional utilities are built including
 `comm`, `expr`, `date`, `dd`, `sort`, `uname` and `uniq`. This fixes a variety
 of issues with existing `coreutils`.
 
-#### Part 31: gawk 3.0.4
+#### Part 32: gawk 3.0.4
 
 `gawk` is the GNU implementation of `awk`, yet another pattern matching and data
 extraction utility. It is also required for autotools.
 
-#### Part 32: perl 5.000
+#### Part 33: perl 5.000
 
 Perl is a general purpose programming language that is especially suitable for
 text processing. It is essential for autotools build system because automake and
@@ -377,17 +382,17 @@ custom makefile instead of Perl's pre-generated Configure script.
 At this first step we build `miniperl` which is `perl` without support for
 loading modules.
 
-#### Part 33: perl 5.003
+#### Part 34: perl 5.003
 
 We now use `perl` from the previous stage to recreate pre-generated files that
 are shipped in perl 5.003. But for now we still need to use handwritten makefile
 instead of `./Configure` script.
 
-#### Part 34: perl 5.004_05
+#### Part 35: perl 5.004_05
 
 Yet another version of perl; the last version buildable with 5.003.
 
-#### Part 35: perl 5.005_03
+#### Part 36: perl 5.005_03
 
 More perl! This is the last version buildable with 5.004. It also introduces the
 new pregenerated files `regnodes.h` and `byterun.{h,c}`.
diff --git a/sysa/bzip2-1.0.8/bzip2-1.0.8.kaem b/sysa/bzip2-1.0.8/bzip2-1.0.8.kaem
index 695c481..3d64698 100755
--- a/sysa/bzip2-1.0.8/bzip2-1.0.8.kaem
+++ b/sysa/bzip2-1.0.8/bzip2-1.0.8.kaem
@@ -33,4 +33,4 @@ bzip2 --help
 cd ../..
 
 # Checksums
-sha256sum -c checksums
+sha256sum -c checksums/bzip2-pass1
diff --git a/sysa/bzip2-1.0.8/bzip2-1.0.8.sh b/sysa/bzip2-1.0.8/bzip2-1.0.8.sh
new file mode 100755
index 0000000..376d3c8
--- /dev/null
+++ b/sysa/bzip2-1.0.8/bzip2-1.0.8.sh
@@ -0,0 +1,21 @@
+# SPDX-FileCopyrightText: 2021 Paul Dersey <pdersey@gmail.com>
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+src_unpack() {
+    src_dir="${base_dir}/src"
+    tar -xf "${src_dir}/${pkg}.tar"
+}
+
+src_prepare() {
+    :
+}
+
+src_compile() {
+   make CC=tcc AR="tcc -ar" bzip2
+}
+
+src_install() {
+    install bzip2 ${PREFIX}/bin
+    install bzip2 ${PREFIX}/bin/bunzip2
+}
diff --git a/sysa/bzip2-1.0.8/checksums b/sysa/bzip2-1.0.8/checksums/bzip2-pass1
similarity index 100%
rename from sysa/bzip2-1.0.8/checksums
rename to sysa/bzip2-1.0.8/checksums/bzip2-pass1
diff --git a/sysa/bzip2-1.0.8/checksums/bzip2-pass2 b/sysa/bzip2-1.0.8/checksums/bzip2-pass2
new file mode 100644
index 0000000..f83708e
--- /dev/null
+++ b/sysa/bzip2-1.0.8/checksums/bzip2-pass2
@@ -0,0 +1,2 @@
+d32467575bfbd6d74cd426205ba102194c0956688e6bc91399930313c68ee0dc  /after/bin/bzip2
+d32467575bfbd6d74cd426205ba102194c0956688e6bc91399930313c68ee0dc  /after/bin/bunzip2
diff --git a/sysa/run.sh b/sysa/run.sh
index 523d46e..fe96695 100755
--- a/sysa/run.sh
+++ b/sysa/run.sh
@@ -28,38 +28,41 @@ build musl-1.1.24 musl-1.1.24.sh checksums/pass2
 build tcc-0.9.27 tcc-musl-pass2.sh checksums/tcc-musl-pass2
 
 # Part 25
-build m4-1.4.7
+build bzip2-1.0.8 bzip2-1.0.8.sh checksums/bzip2-pass2
 
 # Part 26
-build flex-2.6.4
+build m4-1.4.7
 
 # Part 27
+build flex-2.6.4
+
+# Part 28
 build bison-3.4.1 stage1.sh checksums/stage1
 build bison-3.4.1 stage2.sh checksums/stage2
 build bison-3.4.1 stage3.sh checksums/stage3
 
-# Part 28
+# Part 29
 build grep-2.4
 
-# Part 29
+# Part 30
 build diffutils-2.7
 
-# Part 30
+# Part 31
 build coreutils-5.0 coreutils-5.0.sh checksums/pass2
 
-# Part 31
+# Part 32
 build gawk-3.0.4
 
-# Part 32
+# Part 33
 build perl-5.000
 
-# Part 33
+# Part 34
 build perl-5.003
 
-# Part 34
+# Part 35
 build perl5.004_05
 
-# Part 35
+# Part 36
 build perl5.005_03
 
 echo "Bootstrapping completed."