diff --git a/sysa/after.kaem b/sysa/after.kaem
index 0e1a01f..d84a592 100755
--- a/sysa/after.kaem
+++ b/sysa/after.kaem
@@ -38,6 +38,7 @@ cp /${ARCH_DIR}/bin/sha256sum ${bindir}/sha256sum
 cp /${ARCH_DIR}/bin/ungz ${bindir}/ungz
 cp /${ARCH_DIR}/bin/untar ${bindir}/untar
 cp /${ARCH_DIR}/bin/cp ${bindir}/cp
+cp /${ARCH_DIR}/bin/rm ${bindir}/rm
 
 chmod 755 ${bindir}/blood-elf
 chmod 755 ${bindir}/catm
@@ -53,6 +54,7 @@ chmod 755 ${bindir}/mkdir
 chmod 755 ${bindir}/sha256sum
 chmod 755 ${bindir}/ungz
 chmod 755 ${bindir}/untar
+chmod 755 ${bindir}/rm
 
 PATH=${bindir}
 
diff --git a/sysa/bzip2-1.0.8/patches/coreutils.patch b/sysa/bzip2-1.0.8/patches/coreutils.patch
index 81a8ae6..942f600 100644
--- a/sysa/bzip2-1.0.8/patches/coreutils.patch
+++ b/sysa/bzip2-1.0.8/patches/coreutils.patch
@@ -19,11 +19,9 @@ diff -r -N -U3 Makefile Makefile
  
  # Where you want it installed when you do 'make install'
  PREFIX=/usr/local
-@@ -44,13 +44,7 @@
- 	$(CC) $(CFLAGS) $(LDFLAGS) -o bzip2recover bzip2recover.o
+@@ -44,11 +44,6 @@
  
  libbz2.a: $(OBJS)
--	rm -f libbz2.a
  	$(AR) cq libbz2.a $(OBJS)
 -	@if ( test -f $(RANLIB) -o -f /usr/bin/ranlib -o \
 -		-f /bin/ranlib -o -f /usr/ccs/bin/ranlib ) ; then \
diff --git a/sysa/gzip-1.2.4/gzip-1.2.4.kaem b/sysa/gzip-1.2.4/gzip-1.2.4.kaem
index adbb0ea..1b8ea05 100755
--- a/sysa/gzip-1.2.4/gzip-1.2.4.kaem
+++ b/sysa/gzip-1.2.4/gzip-1.2.4.kaem
@@ -15,9 +15,9 @@ catm gzip.c.new ../../files/stat_override.c gzip.c
 cp gzip.c.new gzip.c
 
 # Extract
-cp ${distfiles}/${pkg}.tar.gz ../src/
-ungz ../src/${pkg}.tar.gz
-untar ../src/${pkg}.tar
+ungz --file ${distfiles}/${pkg}.tar.gz --output ../src/${pkg}.tar
+untar --file ../src/${pkg}.tar
+rm ../src/${pkg}.tar
 cd ${pkg}
 
 # Prepare
diff --git a/sysa/make-3.80/make-3.80.kaem b/sysa/make-3.80/make-3.80.kaem
index 157660d..8c0882a 100755
--- a/sysa/make-3.80/make-3.80.kaem
+++ b/sysa/make-3.80/make-3.80.kaem
@@ -10,9 +10,9 @@ mkdir build src
 cd build 
 
 # Extract
-cp ${distfiles}/${pkg}.tar.gz ../src/
-ungz ../src/${pkg}.tar.gz
-untar ../src/${pkg}.tar
+ungz --file ${distfiles}/${pkg}.tar.gz --output ../src/${pkg}.tar
+untar --file ../src/${pkg}.tar
+rm ../src/${pkg}.tar
 cd ${pkg}
 
 # Create .h files
diff --git a/sysa/mes-0.24/mes-0.24.kaem b/sysa/mes-0.24/mes-0.24.kaem
index 56953ef..3a95abc 100755
--- a/sysa/mes-0.24/mes-0.24.kaem
+++ b/sysa/mes-0.24/mes-0.24.kaem
@@ -20,15 +20,15 @@ chmod 755 ${bindir}/mescc.scm
 # Unpack
 mkdir src build
 cd src
-cp ${distfiles}/${NYACC_PKG}.tar.gz ${NYACC_PKG}.tar.gz
-ungz ${NYACC_PKG}.tar.gz
-cp ${distfiles}/${MES_PKG}.tar.gz ${MES_PKG}.tar.gz
-ungz ${MES_PKG}.tar.gz
+ungz --file ${distfiles}/${NYACC_PKG}.tar.gz --output ${NYACC_PKG}.tar
+ungz --file ${distfiles}/${MES_PKG}.tar.gz --output ${MES_PKG}.tar
 cd ..
 
 cd build
-untar ../src/${NYACC_PKG}.tar
-untar ../src/${MES_PKG}.tar
+untar --file ../src/${NYACC_PKG}.tar
+untar --non-strict --file ../src/${MES_PKG}.tar # ignore symlinks
+
+rm ../src/${NYACC_PKG}.tar ../src/${MES_PKG}.tar
 
 cp ../files/config.h ${MES_PREFIX}/include/mes
 
diff --git a/sysa/stage0-posix/src b/sysa/stage0-posix/src
index 2899c74..aa49045 160000
--- a/sysa/stage0-posix/src
+++ b/sysa/stage0-posix/src
@@ -1 +1 @@
-Subproject commit 2899c74f5b342618cc0a51bccb314d1eaa44d1dd
+Subproject commit aa490453c78f267137c49fb1e50a66ab816cfceb
diff --git a/sysa/tar-1.12/tar-1.12.kaem b/sysa/tar-1.12/tar-1.12.kaem
index 527b25d..74be5f9 100755
--- a/sysa/tar-1.12/tar-1.12.kaem
+++ b/sysa/tar-1.12/tar-1.12.kaem
@@ -14,7 +14,8 @@ cd build
 # Extract
 cp ${distfiles}/${pkg}.tar.gz ../src/
 gzip -d -f ../src/${pkg}.tar.gz
-untar ../src/${pkg}.tar
+untar --file ../src/${pkg}.tar
+rm ../src/${pkg}.tar
 
 cd ${pkg}
 
diff --git a/sysa/tcc-0.9.26/tcc-0.9.26.kaem b/sysa/tcc-0.9.26/tcc-0.9.26.kaem
index fe65528..4090bb8 100755
--- a/sysa/tcc-0.9.26/tcc-0.9.26.kaem
+++ b/sysa/tcc-0.9.26/tcc-0.9.26.kaem
@@ -19,17 +19,15 @@ TCC_PKG=tcc-0.9.26-1136-g5bba73cc
 
 # Unpack
 mkdir src build
-cp ${distfiles}/${TCC_TAR}.tar.gz src
-cp ${distfiles}/${MES_PKG}.tar.gz src
 
 cd src
-ungz ${TCC_TAR}.tar.gz
-ungz ${MES_PKG}.tar.gz
+ungz --file ${distfiles}/${TCC_TAR}.tar.gz --output ${TCC_TAR}.tar
+ungz --file ${distfiles}/${MES_PKG}.tar.gz --output ${MES_PKG}.tar
 cd ..
 
 cd build
-untar ../src/${TCC_TAR}.tar
-untar ../src/${MES_PKG}.tar
+untar --file ../src/${TCC_TAR}.tar
+untar --non-strict --file ../src/${MES_PKG}.tar
 
 # Create config.h
 cd ${TCC_PKG}