diff --git a/sysa/perl-5.6.2/checksums b/sysa/perl-5.6.2/checksums
index 25762c7..6a20bc7 100644
--- a/sysa/perl-5.6.2/checksums
+++ b/sysa/perl-5.6.2/checksums
@@ -1 +1 @@
-108b81c3a43b6c2aeac9fb575225e2dd76b199ef17cec458f1f6a3a95bf20ecf  /after/bin/perl
+98cbb417ac4dc35a91682d91cc34c598bcaf0a37315db71bc65c51184e876e22  /after/bin/perl
diff --git a/sysa/perl-5.6.2/files/config.h b/sysa/perl-5.6.2/files/config.h
index 6a53362..8f23d1b 100644
--- a/sysa/perl-5.6.2/files/config.h
+++ b/sysa/perl-5.6.2/files/config.h
@@ -19,6 +19,8 @@
 
 #define HAS_SYSCALL
 #define HAS_TIMES
+#define HAS_FLOCK
+#define HAS_TRUNCATE
 
 #define HAS_VPRINTF
 #define Gid_t gid_t
@@ -69,6 +71,7 @@
 #define ARCHLIB "/after/lib/perl5/"
 
 #define CAT2(a,b) a##b
+#define STRINGIFY(a) "a"
 #define Gconvert(x,n,t,b) gcvt((x),(n),(b))
 
 #define Time_t time_t
@@ -96,6 +99,7 @@
 #define NVSIZE 8 /* sizeof(double) */
 #define UVSIZE 4 /* sizeof(long) on i386 */
 #define IVSIZE 4
+#define PTRSIZE 4
 
 #define IVTYPE long
 #define UVTYPE unsigned long
diff --git a/sysa/perl-5.6.2/files/config.sh b/sysa/perl-5.6.2/files/config.sh
new file mode 100644
index 0000000..7e8e6b6
--- /dev/null
+++ b/sysa/perl-5.6.2/files/config.sh
@@ -0,0 +1,11 @@
+# SPDX-FileCopyrightText: 2021 Andrius Štikonas <andrius@stikonas.eu>
+
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+ar='tcc -ar'
+cc='tcc'
+ldlibpthname='LD_LIBRARY_PATH'
+libpth='/after/lib'
+path_sep=':'
+
+CONFIGDOTSH=true
diff --git a/sysa/perl-5.6.2/mk/main.mk b/sysa/perl-5.6.2/mk/main.mk
index f40dd9e..994b951 100644
--- a/sysa/perl-5.6.2/mk/main.mk
+++ b/sysa/perl-5.6.2/mk/main.mk
@@ -6,21 +6,130 @@ VERSION=5.6.2
 PRIVLIB_EXP=$(PREFIX)/lib/perl5/$(VERSION)
 
 CC      = tcc
+AR      = tcc -ar
 CFLAGS  = -DPRIVLIB_EXP=\"$(PRIVLIB_EXP)\" \
-          -DPERL_EXTERNAL_GLOB \
-          -DPERL_CORE=1
+          -DPERL_CORE=1 \
+          -I. \
+          -DVERSION=\"$(VERSION)\"
+
+MINICFLAGS = -DPERL_EXTERNAL_GLOB
 
 .PHONY: all
 
-MINIPERL_SRC = av deb doio doop dump globals gv hv mg miniperlmain op perl perlapi perlio perly pp pp_ctl pp_hot pp_sys regcomp regexec run scope sv taint toke universal utf8 util xsutils
-MINIPERL_OBJ = $(addsuffix .o, $(MINIPERL_SRC))
+LIBPERL_SRC = av deb doio doop dump globals gv hv mg op perl perlapi perlio perly pp pp_ctl pp_hot pp_sys regcomp regexec run scope sv taint toke universal utf8 util xsutils
+LIBPERL_OBJ = $(addsuffix .o, $(LIBPERL_SRC))
 
-all: miniperl
+# POSIX is dealt with separately, Errno has no .a files either
+EXTENSIONS = ByteLoader Data/Dumper Fcntl File/Glob IO
+EXTENSIONS_A := $(foreach f,$(EXTENSIONS), lib/auto/$f/$(notdir $f).a)
 
-miniperl: $(MINIPERL_OBJ)
-	$(CC) $(CFLAGS) $^ $(LDFLAGS) -o $@
+EXTRA_EXTENSIONS = POSIX
+EXTRA_EXTENSIONS_A = $(foreach f,$(EXTRA_EXTENSIONS), lib/auto/$f/$(notdir $f).a)
+
+all: perl
+
+op-mini.c: op.c
+	cp op.c op-mini.c
+
+libperl.a: $(LIBPERL_OBJ)
+	$(AR) cr $@ $^
+
+miniperl: miniperlmain.o op-mini.o libperl.a
+	$(CC) $(CFLAGS) $(MINICFLAGS) $^ $(LDFLAGS) -o $@
+
+lib/re.pm:
+	cp ext/re/re.pm lib/re.pm
+
+config.sh:
+	echo "CONFIGDOTSH=true" > $@
+
+lib/Config.pm: config.sh miniperl configpm lib/re.pm
+	./miniperl configpm $@
+
+autosplit.pl: lib/Config.pm
+	echo 'use AutoSplit; autosplit_lib_modules(@ARGV)' > $@
+
+prepare_library: autosplit.pl miniperl lib/re.pm
+	./miniperl -Ilib $< lib/*.pm lib/*/*.pm
+
+lib/ExtUtils/Miniperl.pm: miniperl
+	./miniperl minimod.pl > $@
+
+writemain: writemain.SH config.sh
+	spitshell=cat eunicefix=true ./$<
+
+perlmain.c: writemain
+	./writemain $(EXTENSIONS_A) $(EXTRA_EXTENSIONS_A) > $@
+
+ext/DynaLoader/DynaLoader.pm: miniperl lib/Config.pm
+	./miniperl -Ilib ext/DynaLoader/DynaLoader_pm.PL DynaLoader.pm
+	mv DynaLoader.pm $@
+	$(MAKE) prepare_library
+
+ext/DynaLoader/XSLoader.pm: miniperl lib/Config.pm
+	./miniperl -Ilib ext/DynaLoader/XSLoader_pm.PL XSLoader.pm
+	mv XSLoader.pm $@
+
+ext/DynaLoader/DynaLoader.xs: ext/DynaLoader/DynaLoader.pm ext/DynaLoader/XSLoader.pm
+	cp ext/DynaLoader/dl_dlopen.xs $@
+
+ext/DynaLoader/DynaLoader.c: ext/DynaLoader/DynaLoader.xs miniperl
+	cd $(dir $@); \
+	$(CURDIR)/miniperl -I$(CURDIR)/lib $(CURDIR)/lib/ExtUtils/xsubpp -noprototypes -typemap $(CURDIR)/lib/ExtUtils/typemap $(notdir $<) > $(notdir $@)
+
+lib/auto/DynaLoader/DynaLoader.a: ext/DynaLoader/DynaLoader.o
+	mkdir -p lib/auto/DynaLoader
+	$(AR) cr $@ $^
+
+ext/POSIX/POSIX.c: ext/POSIX/POSIX.xs miniperl
+	cd $(dir $@); \
+	$(CURDIR)/miniperl -I$(CURDIR)/lib $(CURDIR)/lib/ExtUtils/xsubpp -noprototypes -typemap $(CURDIR)/lib/ExtUtils/typemap $(notdir $<) > $(notdir $@)
+
+lib/auto/POSIX/POSIX.a: ext/POSIX/POSIX.o
+	mkdir -p lib/auto/POSIX
+	$(AR) cr $@ $^
+	mkdir -p ext/POSIX/blib/lib
+	cp ext/POSIX/POSIX.pod ext/POSIX/POSIX.pm ext/POSIX/blib/lib
+	cd ext/POSIX/blib; \
+	../../../miniperl -I../../../lib $(CURDIR)/autosplit.pl lib/*.pm
+	cp ext/POSIX/blib/lib/auto/POSIX/* lib/auto/POSIX/
+
+define build_rule
+    lib/auto/$1/$(notdir $1).a: ext/$1/$(notdir $1).o $(patsubst %.c,%.o,$(wildcard ext/$1/*.c))
+	mkdir -p lib/auto/$1
+	$(AR) cr lib/auto/$1/$(notdir $1).a ext/$1/$(notdir $1).o $(patsubst %.c,%.o,$(wildcard ext/$1/*.c))
+	cp ext/$1/$(notdir $1).pm lib/auto/$1/
+
+    ext/$1/$(notdir $1).c: ext/$1/$(notdir $1).xs miniperl lib/Config.pm
+	cd ext/$1; \
+	$(CURDIR)/miniperl -I$(CURDIR)/lib $(CURDIR)/lib/ExtUtils/xsubpp -noprototypes -typemap $(CURDIR)/lib/ExtUtils/typemap $(notdir $1).xs > $(notdir $1).c
+endef
+$(foreach f,$(EXTENSIONS),$(eval $(call build_rule,$f)))
+
+lib/Errno.pm: miniperl
+	cd ext/Errno; \
+	../../miniperl -I../../lib Errno_pm.PL
+	mv ext/Errno/Errno.pm $@
+
+perl: perlmain.o lib/auto/DynaLoader/DynaLoader.a $(EXTENSIONS_A) lib/auto/POSIX/POSIX.a libperl.a lib/re.pm lib/Errno.pm
+	$(CC) $(CFLAGS) perlmain.o lib/auto/DynaLoader/DynaLoader.a $(EXTENSIONS_A) lib/auto/POSIX/POSIX.a libperl.a -o $@
 
 install: all
-	install miniperl $(PREFIX)/bin/perl
+	install perl $(PREFIX)/bin/perl
 	mkdir -p "$(PRIVLIB_EXP)"
 	cp -r lib/* "$(PRIVLIB_EXP)"
+
+	install -m 644 ext/DynaLoader/XSLoader.pm "$(PRIVLIB_EXP)"
+	install -m 644 ext/DynaLoader/DynaLoader.pm "$(PRIVLIB_EXP)"
+
+	install -m 644 ext/ByteLoader/ByteLoader.pm "$(PRIVLIB_EXP)"
+	mkdir "$(PRIVLIB_EXP)/Data/"
+	install -m 644 ext/Data/Dumper/Dumper.pm "$(PRIVLIB_EXP)/Data/"
+	install -m 644 ext/Fcntl/Fcntl.pm "$(PRIVLIB_EXP)"
+	install -m 644 ext/File/Glob/Glob.pm "$(PRIVLIB_EXP)/File/"
+	install -m 644 ext/IO/IO.pm "$(PRIVLIB_EXP)"
+	mkdir "$(PRIVLIB_EXP)/IO/"
+	cp ext/IO/lib/IO/*.pm "$(PRIVLIB_EXP)/IO/"
+	install -m 644 ext/POSIX/POSIX.pm "$(PRIVLIB_EXP)/"
+	install -m 644 ext/POSIX/POSIX.pod "$(PRIVLIB_EXP)/"
+	cp lib/auto/POSIX/* "$(PRIVLIB_EXP)/auto/POSIX/"
diff --git a/sysa/perl-5.6.2/perl-5.6.2.sh b/sysa/perl-5.6.2/perl-5.6.2.sh
index 39f3c38..3f70621 100755
--- a/sysa/perl-5.6.2/perl-5.6.2.sh
+++ b/sysa/perl-5.6.2/perl-5.6.2.sh
@@ -23,6 +23,14 @@ src_prepare() {
     perl bytecode.pl
     rm warnings.h lib/warnings.pm
     perl warnings.pl
+
+    # Workaround for some linking problems, remove if possible
+    sed -i 's/perl_call_method/Perl_call_method/' ext/Data/Dumper/Dumper.xs
+    sed -i 's/perl_call_sv/Perl_call_sv/' ext/Data/Dumper/Dumper.xs
+    sed -i 's/sv_setptrobj/Perl_sv_setref_iv/' ext/POSIX/POSIX.xs
+
+    # We are using non-standard locations
+    sed -i 's#/usr/include/errno.h#/after/include/musl/bits/errno.h#' ext/Errno/Errno_pm.PL
 }
 
 src_install() {