Don't touch live filesystem in bash-5.2.15

Rather, uninstall existing bash before bash is built

steps/bash-2.05b/pass1.kaem

@@ -47,10 +47,7 @@ make
 
 # Install
 install bash ${PREFIX}/bin/
-mkdir /bin/
-ln -s ${PREFIX}/bin/bash /bin/bash
-ln -s ${PREFIX}/bin/bash /bin/sh
-ln -s ${PREFIX}/bin/bash ${PREFIX}/bin/sh
+install bash ${PREFIX}/bin/sh
 
 cd ../..
 

steps/bash-5.2.15/pass1.sh

@@ -53,9 +53,5 @@ src_compile() {
 
 src_install() {
     install -D bash "${DESTDIR}${PREFIX}/bin/bash"
-    # Work around weird symlink bug
     install bash "${DESTDIR}${PREFIX}/bin/sh"
-
-    # Needs special handling b/c is currently running - tar doesn't like this
-    rm -f "${PREFIX}/bin/bash" "${PREFIX}/bin/sh"
 }

steps/helpers.sh

@@ -95,11 +95,6 @@ bin_preseed() {
         if [ "${UPDATE_CHECKSUMS}" = "True" ] || src_checksum "${pkg}" $((revision)); then
             echo "${pkg}: installing prebuilt package."
             mv "${pkg}_${revision}"* /external/repo || return 1
-            if [[ "${pkg}" == bash-* ]]; then
-                # tar does not like overwriting running bash
-                # shellcheck disable=SC2153
-                rm -f "${PREFIX}/bin/bash" "${PREFIX}/bin/sh"
-            fi
             cd "/external/repo"
             rm -f /tmp/filelist.txt
             src_apply "${pkg}" $((revision))
@@ -471,6 +466,11 @@ src_apply() {
         TAR_PREFIX="/tmp/"
     fi
 
+    # Bash does not like to be overwritten
+    if [[ "${pkg}" == bash-* ]]; then
+        rm "${PREFIX}/bin/bash"
+    fi
+
     # Overwriting files is mega busted, so do it manually
     # shellcheck disable=SC2162
     if [ -e /tmp/filelist.txt ]; then

steps/manifest

@@ -74,6 +74,7 @@ build: coreutils-6.10
 build: gawk-3.0.4
 build: perl-5.000
 build: perl-5.003
+uninstall: perl-5.000
 build: perl5.004-05
 build: perl5.005-03
 build: perl-5.6.2