diff --git a/README.md b/README.md
index 5be363e..e2f370d 100644
--- a/README.md
+++ b/README.md
@@ -334,4 +334,19 @@ is required later for autotools.
 #### Part 28: 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.
\ No newline at end of file
+extraction utility. It is also required for autotools.
+
+#### Part 29: 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 some other tools are written in Perl.
+
+Perl itself is written in C but ships with some pre-generated files that need
+perl for processing. To bootstrap Perl we will start with the oldest Perl 5
+version which has the fewest number of pregenerated files. We reimplement two
+remaining perl scripts in awk and use our 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.
diff --git a/SHA256SUMS.sources b/SHA256SUMS.sources
index 763570e..f86ee27 100644
--- a/SHA256SUMS.sources
+++ b/SHA256SUMS.sources
@@ -13,4 +13,5 @@ a32032bab36208509466654df12f507600dfe0313feebbcd218c32a70bf72a16  grep-2.4.tar.g
 64b30b41fde2ebf669e6af489883fb1df6a06ac30555a96cfa3c39ecce7267dd  make-3.80.tar.gz
 1370c9a812b2cf2a7d92802510cca0058cc37e66a7bedd70051f0a34015022a3  musl-1.1.24.tar.gz
 ecb5c6469d732bcf01d6ec1afe9e64f1668caba5bfdb103c28d7f537ba3cdb8a  patch-2.5.9.tar.gz
+1beb92a6fc29483d0a8ab71379fb0e930a2c90198d81ba2930c1e788b5f58873  perl5.000.tar.gz
 c6c37e888b136ccefab903c51149f4b7bd659d69d4aea21245f61053a57aa60a  tar-1.12.tar.gz
diff --git a/rootfs.sh b/rootfs.sh
index bb43667..e7e4ce1 100755
--- a/rootfs.sh
+++ b/rootfs.sh
@@ -190,6 +190,9 @@ get_file https://ftp.gnu.org/gnu/diffutils/diffutils-2.7.tar.gz
 # gawk 3.0.4
 get_file https://ftp.gnu.org/gnu/gawk/gawk-3.0.4.tar.gz
 
+# perl 5.000
+get_file http://mirrors.develooper.com/perl/really-ancient-perls/oldperl/dist/leo/src/perl5/perl5.000.tar.gz
+
 # General cleanup
 find tmp -name .git -exec rm -rf \;
 
diff --git a/sysa/perl5.000/files/config.h b/sysa/perl5.000/files/config.h
new file mode 100644
index 0000000..a5126e6
--- /dev/null
+++ b/sysa/perl5.000/files/config.h
@@ -0,0 +1,73 @@
+// SPDX-FileCopyrightText: 2021 Andrius Štikonas <andrius@stikonas.eu>
+
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#define MEM_ALIGNBYTES 8
+#define BIN "/after/bin"
+#define BYTEORDER 0x4321
+#define CPPSTDIN "tcc -E"
+#define CPPMINUS "-"
+#define HAS_ALARM
+#define HAS_FORK
+#define HAS_MKDIR
+#define HAS_PAUSE
+#define HAS_RMDIR
+#define HAS_STRERROR
+#define HAS_SYS_ERRLIST
+#define Strerror(e) strerror(e)
+
+#define HAS_SYSCALL
+#define HAS_TIMES
+
+#define HAS_VPRINTF
+#define Gid_t gid_t
+
+#define I_DIRENT
+#define Direntry_t struct dirent
+
+#define I_DLFCN
+#define I_FCNTL
+#define I_LIMITS
+#define I_MATH
+#define I_NETINET_IN
+#define I_STDDEF
+#define I_STDLIB
+#define I_STRING
+#define I_SYS_DIR
+#define I_SYS_IOCTL
+#define I_SYS_PARAM
+#define I_SYS_SELECT
+#define I_SYS_TIMES
+#define I_TERMIOS
+#define I_TIME
+#define I_UNISTD
+#define I_UTIME
+#define I_STDARG
+
+#define INTSIZE 4
+#define Off_t off_t
+
+#define PRIVLIB "/after/lib/perl5"
+
+#define _(args) args
+
+#define RANDBITS 31
+
+#define SCRIPTDIR "/after/bin"
+
+#define SIG_NAME "ZERO","HUP","INT","QUIT","ILL","TRAP","IOT","BUS","FPE","KILL","USR1","SEGV","USR2","PIPE","ALRM","TERM","STKFLT","CHLD","CONT","STOP","TSTP","TTIN","TTOU","URG","XCPU","XFSZ","VTALRM","PROF","WINCH", "IO", "POLL", "PWR", "SYS", "UNUSED"
+
+#define Size_t size_t
+
+#define STDCHAR char
+#define Uid_t uid_t
+
+#define LOC_SED "/after/bin/sed"
+#define ARCHLIB "/after/lib/perl5/"
+
+#define CAT2(a,b) a##b
+#define Gconvert(x,n,t,b) gcvt((x),(n),(b))
+
+#define Time_t time_t
+
+#define SSize_t ssize_t
diff --git a/sysa/perl5.000/files/keywords.sh b/sysa/perl5.000/files/keywords.sh
new file mode 100644
index 0000000..76950e5
--- /dev/null
+++ b/sysa/perl5.000/files/keywords.sh
@@ -0,0 +1,6 @@
+#!/bin/sh -e
+# SPDX-FileCopyrightText: 2021 Andrius Štikonas <andrius@stikonas.eu>
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+sed -e '1,/__END__/ d' keywords.pl | sed '1d' | awk '{print "#define", "KEY_"$0, NR-1}' > keywords.h
diff --git a/sysa/perl5.000/files/opcode.awk b/sysa/perl5.000/files/opcode.awk
new file mode 100644
index 0000000..e81d7e2
--- /dev/null
+++ b/sysa/perl5.000/files/opcode.awk
@@ -0,0 +1,31 @@
+# SPDX-FileCopyrightText: 2021 Andrius Štikonas <andrius@stikonas.eu>
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+{
+    argsum = 0
+
+    argsum = or(argsum,   1 * (index($4, "m") != 0))
+    argsum = or(argsum,   2 * (index($4, "f") != 0))
+    argsum = or(argsum,   4 * (index($4, "s") != 0))
+    argsum = or(argsum,   8 * (index($4, "t") != 0))
+    argsum = or(argsum,  16 * (index($4, "i") != 0))
+    argsum = or(argsum,  32 * (index($4, "I") != 0))
+    argsum = or(argsum,  64 * (index($4, "d") != 0))
+    argsum = or(argsum, 128 * (index($4, "u") != 0))
+
+    mul = 256
+
+    arg_val="SLAHCFR"
+
+    argstr=$5
+    gsub(" ", "", argstr)
+    split(argstr, args, "")
+    for(i=1; i<=length(argstr); i+=1) {
+        argnum = (index(argstr, "?") != 0) * 8
+        argnum += index(arg_val, args[i])
+        argsum += argnum * mul
+        mul = lshift(mul, 4)
+    }
+    printf("\t0x%08x,\t/* %s */\n", argsum, $1)
+}
diff --git a/sysa/perl5.000/files/opcode.sh b/sysa/perl5.000/files/opcode.sh
new file mode 100755
index 0000000..9f52c18
--- /dev/null
+++ b/sysa/perl5.000/files/opcode.sh
@@ -0,0 +1,71 @@
+#!/bin/sh -e
+# SPDX-FileCopyrightText: 2021 Andrius Štikonas <andrius@stikonas.eu>
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+
+sed -e '1,/__END__/ d; s/[#].*$//g; /^$/d' opcode.pl | tr -s '\t' '\t' > data
+
+exec 1> opcode.h
+
+# Emit defines.
+echo "typedef enum {";
+awk '{print "\tOP_"toupper($1)","}' data
+echo "	OP_max"
+echo "} opcode;"
+echo "#define MAXO " $(wc -l data | awk '{print $1}')
+
+# Emit opnames.
+printf "
+#ifndef DOINIT
+EXT char *op_name[];
+#else
+EXT char *op_name[] = {
+"
+awk -F'\t' '{print "\t\""$2"\","}' data
+printf "};
+#endif
+
+"
+
+# Emit function declarations.
+awk -F'\t' '{print "OP *\t"$3"\t_((OP* op));"}' data | sort | uniq
+awk '{print "OP *\tpp_"$1"\t_((void));"}' data
+
+# Emit ppcode switch array.
+printf "
+#ifndef DOINIT
+EXT OP * (*ppaddr[])();
+#else
+EXT OP * (*ppaddr[])() = {
+"
+awk '{print "\tpp_"$1","}' data
+printf "};
+#endif
+"
+
+# Emit check routines.
+printf "
+#ifndef DOINIT
+EXT OP * (*check[])();
+#else
+EXT OP * (*check[])() = {
+"
+awk -F'\t' '{print "\t"$3",\t/* "$1" */"}' data
+printf "};
+#endif
+"
+
+# Emit allowed argument types.
+printf "
+#ifndef DOINIT
+EXT U32 opargs[];
+#else
+EXT U32 opargs[] = {
+"
+awk -F'\t' -f opcode.awk data
+printf "};
+#endif
+"
+
+rm data
diff --git a/sysa/perl5.000/mk/main.mk b/sysa/perl5.000/mk/main.mk
new file mode 100644
index 0000000..9cfa285
--- /dev/null
+++ b/sysa/perl5.000/mk/main.mk
@@ -0,0 +1,18 @@
+# SPDX-FileCopyrightText: 2021 Andrius Štikonas <andrius@stikonas.eu>
+
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+CC      = tcc
+
+.PHONY: all
+
+MINIPERL_SRC = av deb doio doop dump gv hv mg miniperlmain op perl perly pp pp_ctl pp_hot pp_sys regcomp regexec run scope sv taint toke util
+MINIPERL_OBJ = $(addsuffix .o, $(MINIPERL_SRC))
+
+all: miniperl
+
+miniperl: $(MINIPERL_OBJ)
+	$(CC) $(CFLAGS) $^ $(LDFLAGS) -o $@
+
+install: all
+	install miniperl $(PREFIX)/bin/perl
diff --git a/sysa/perl5.000/perl5.000.sh b/sysa/perl5.000/perl5.000.sh
new file mode 100755
index 0000000..56c0a90
--- /dev/null
+++ b/sysa/perl5.000/perl5.000.sh
@@ -0,0 +1,23 @@
+# SPDX-FileCopyrightText: 2021 Andrius Štikonas <andrius@stikonas.eu>
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+src_prepare() {
+    default_src_prepare
+
+    rm perly.c perly.h
+    bison -d perly.y
+    mv perly.tab.c perly.c
+    mv perly.tab.h perly.h
+
+    rm embed.h
+    ./embed_h.SH
+
+    rm keywords.h
+    chmod +x keywords.sh
+    ./keywords.sh
+ 
+    rm opcode.h
+    chmod +x opcode.sh
+    ./opcode.sh
+}
diff --git a/sysa/run.sh b/sysa/run.sh
index facb32c..7c73ca1 100755
--- a/sysa/run.sh
+++ b/sysa/run.sh
@@ -41,4 +41,7 @@ build coreutils-5.0
 # Part 28
 build gawk-3.0.4
 
+# Part 29
+build perl5.000
+
 echo "Bootstrapping completed."