diff --git a/projects/gnu.org/autoconf/package.yml b/projects/gnu.org/autoconf/package.yml
index 6035dac6..e4e69467 100644
--- a/projects/gnu.org/autoconf/package.yml
+++ b/projects/gnu.org/autoconf/package.yml
@@ -22,17 +22,35 @@ build:
   dependencies:
     tea.xyz/gx/cc: c99
     tea.xyz/gx/make: '*'
+    git-scm.org: 2
   script: |-
     ./configure \
       --build={{ hw.target }} \
       --prefix="{{ prefix }}"
     make --jobs {{ hw.concurrency }} install
 
+    cd "{{prefix}}"/bin
+
+    fix-shebangs.ts *
+
+    perl -pi -e 's|\x27{{prefix}}|"\$PREFIX"\x27|g' ./autoconf
+
+    # fix specific m4 and perl paths
+    perl -pi -e 's|/opt/perl.org/v[^/]+/bin/perl|perl|g' *
+    perl -pi -e 's|/opt/gnu.org/m4/v[^/]+/bin/m4|m4|g' *
+
+    # fix hardcoded paths
+    perl -pi -e "s|'{{prefix}}/|\\\$prefix.'/|" *
+    git -C .. apply {{ pkg.pantry-prefix }}/relocatable.diff
+
+    cd ../share/autoconf
+    perl -pi -e 's|{{prefix}}|\$PREFIX|' autom4te.cfg
+
 test:
   dependencies:
     tea.xyz/gx/cc: c99
   script: |
-    autoconf
+    autoconf --verbose --debug
     ./configure
     test -f config.status
     test -f config.log
diff --git a/projects/gnu.org/autoconf/relocatable.diff b/projects/gnu.org/autoconf/relocatable.diff
new file mode 100644
index 00000000..ce39c32e
--- /dev/null
+++ b/projects/gnu.org/autoconf/relocatable.diff
@@ -0,0 +1,152 @@
+diff --git a/bin/autoconf b/bin/autoconf
+index 90e1822..3b58d1f 100755
+--- a/bin/autoconf
++++ b/bin/autoconf
+@@ -19,6 +19,8 @@
+ # You should have received a copy of the GNU General Public License
+ # along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
++PREFIX="$(cd "$(dirname "$0")/.." && pwd)"
++
+ ## -------------------- ##
+ ## M4sh Initialization. ##
+ ## -------------------- ##
+diff --git a/bin/autoheader b/bin/autoheader
+index 2994b69..4cd2587 100755
+--- a/bin/autoheader
++++ b/bin/autoheader
+@@ -29,9 +29,14 @@ eval 'case $# in 0) exec perl -S "$0";; *) exec perl
+ use 5.006;
+ use strict;
+ use warnings FATAL => 'all';
++use Cwd qw(abs_path);
++use File::Basename;
+
++my $prefix;
+ BEGIN
+ {
++  $prefix = dirname(dirname(abs_path(__FILE__)));
++
+   my $pkgdatadir = $ENV{'autom4te_perllibdir'} || $prefix.'/share/autoconf';
+   unshift @INC, "$pkgdatadir";
+
+diff --git a/bin/autom4te b/bin/autom4te
+index 215c42a..2a9e9ea 100755
+--- a/bin/autom4te
++++ b/bin/autom4te
+@@ -25,9 +25,14 @@ eval 'case $# in 0) exec perl -S "$0";; *) exec perl
+ use 5.006;
+ use strict;
+ use warnings FATAL => 'all';
++use Cwd qw(abs_path);
++use File::Basename;
+
++my $prefix;
+ BEGIN
+ {
++  $prefix = dirname(dirname(abs_path(__FILE__)));
++
+   my $pkgdatadir = $ENV{'autom4te_perllibdir'} || $prefix.'/share/autoconf';
+   unshift @INC, $pkgdatadir;
+
+@@ -393,6 +398,9 @@ Try '$me --help' for more information."
+   $tcache = "$cache/traces.";
+   $ocache = "$cache/output.";
+
++  # added by tea
++  @prepend_include = map { $_ =~ s/\$PREFIX/$prefix/r } @prepend_include;
++
+   # Normalize the includes: the first occurrence is enough, several is
+   # a pain since it introduces a useless difference in the path which
+   # invalidates the cache.  And strip '.' which is implicit and always
+diff --git a/bin/autoreconf b/bin/autoreconf
+index 69c27ea..96d3ab9 100755
+--- a/bin/autoreconf
++++ b/bin/autoreconf
+@@ -28,10 +28,15 @@ eval 'case $# in 0) exec perl -S "$0";; *) exec perl
+ use 5.006;
+ use strict;
+ use warnings FATAL => 'all';
++use Cwd qw(abs_path);
++use File::Basename;
+
++my $prefix;
+ my $buildauxdir;
+ BEGIN
+ {
++  $prefix = dirname(dirname(abs_path(__FILE__)));
++
+   my $pkgdatadir = $ENV{'autom4te_perllibdir'} || $prefix.'/share/autoconf';
+   unshift @INC, $pkgdatadir;
+
+diff --git a/bin/autoscan b/bin/autoscan
+index b41d9f3..815bb7c 100755
+--- a/bin/autoscan
++++ b/bin/autoscan
+@@ -27,9 +27,14 @@ eval 'case $# in 0) exec perl -S "$0";; *) exec perl
+ use 5.006;
+ use strict;
+ use warnings FATAL => 'all';
++use Cwd qw(abs_path);
++use File::Basename;
+
++my $prefix;
+ BEGIN
+ {
++  $prefix = dirname(dirname(abs_path(__FILE__)));
++
+   my $pkgdatadir = $ENV{'autom4te_perllibdir'} || $prefix.'/share/autoconf';
+   unshift @INC, $pkgdatadir;
+
+diff --git a/bin/autoupdate b/bin/autoupdate
+index 156d508..e31c5d1 100755
+--- a/bin/autoupdate
++++ b/bin/autoupdate
+@@ -28,9 +28,14 @@ eval 'case $# in 0) exec perl -S "$0";; *) exec perl
+ use 5.006;
+ use strict;
+ use warnings FATAL => 'all';
++use Cwd qw(abs_path);
++use File::Basename;
+
++my $prefix;
+ BEGIN
+ {
++  $prefix = dirname(dirname(abs_path(__FILE__)));
++
+   my $pkgdatadir = $ENV{'autom4te_perllibdir'} || $prefix.'/share/autoconf';
+   unshift @INC, $pkgdatadir;
+
+diff --git a/bin/ifnames b/bin/ifnames
+index c5823fc..3177eb0 100755
+--- a/bin/ifnames
++++ b/bin/ifnames
+@@ -32,9 +32,14 @@ eval 'case $# in 0) exec perl -S "$0";; *) exec perl
+ use 5.006;
+ use strict;
+ use warnings FATAL => 'all';
++use Cwd qw(abs_path);
++use File::Basename;
+
++my $prefix;
+ BEGIN
+ {
++  $prefix = dirname(dirname(abs_path(__FILE__)));
++
+   my $pkgdatadir = $ENV{'autom4te_perllibdir'} || $prefix.'/share/autoconf';
+   unshift @INC, $pkgdatadir;
+
+diff --git a/bin/autom4te b/bin/autom4te
+ index 042ece6..89e4968 100755
+ --- a/bin/autom4te
+ +++ b/bin/autom4te
+ @@ -393,6 +393,9 @@ Try '$me --help' for more information."
+    $tcache = "$cache/traces.";
+    $ocache = "$cache/output.";
+
+ +  # added by tea
+ +  @prepend_include = map { $_ =~ s/\$PREFIX/$prefix/r } @prepend_include;
+ +
+    # Normalize the includes: the first occurrence is enough, several is
+    # a pain since it introduces a useless difference in the path which
+    # invalidates the cache.  And strip '.' which is implicit and always
diff --git a/projects/gnu.org/automake/package.yml b/projects/gnu.org/automake/package.yml
index 79601fcc..4503e52f 100644
--- a/projects/gnu.org/automake/package.yml
+++ b/projects/gnu.org/automake/package.yml
@@ -2,7 +2,7 @@ distributable:
   url: http://ftp.gnu.org/gnu/automake/automake-{{ version }}.tar.xz
   strip-components: 1
 
-#FIXME: need versions
+#FIXME: need to parse versions from someplace
 versions:
   - 1.16.5
 
@@ -10,23 +10,33 @@ provides:
   - bin/aclocal
   - bin/automake
 
+dependencies:
+  gnu.org/autoconf: ^2.65.0
+  perl.org: '*'
+
 build:
   dependencies:
     tea.xyz/gx/cc: c99
     tea.xyz/gx/make: '*'
-    gnu.org/autoconf: ^2.65.0
-    perl.org: '*'  #TODO `inherit`
+    git-scm.org: 2
   script: |-
     ./configure \
       --build={{ hw.target }} \
       --prefix="{{ prefix }}"
     make --jobs {{ hw.concurrency }} install
 
+    cd "{{prefix}}"/bin
+
+    # fix hardcoded paths
+    perl -pi -e "s|'{{prefix}}/|\\\$prefix.'/|" * ../share/automake-{{version.marketing}}/Automake/Config.pm
+    git -C .. apply {{ pkg.pantry-prefix }}/relocatable.diff
+
+    fix-shebangs.ts *
+
 # TODO to prove automake doesn't require autoconf we should
 # use “depend” on the autoconf test to generate our `configure` separately
 test:
   dependencies:
-    gnu.org/autoconf: ^2.65.0
     tea.xyz/gx/cc: c99
     tea.xyz/gx/make: '*'
   script: |
diff --git a/projects/gnu.org/automake/relocatable.diff b/projects/gnu.org/automake/relocatable.diff
new file mode 100644
index 00000000..937e22eb
--- /dev/null
+++ b/projects/gnu.org/automake/relocatable.diff
@@ -0,0 +1,47 @@
+diff --git a/bin/aclocal b/bin/aclocal
+index 6b58b9b..ad251a7 100755
+--- a/bin/aclocal
++++ b/bin/aclocal
+@@ -23,8 +23,11 @@ use 5.006;
+ use strict;
+ use warnings FATAL => 'all';
+
++use Cwd qw(abs_path); use File::Basename;
++my $prefix;
+ BEGIN
+ {
++  $prefix = dirname(dirname(abs_path(__FILE__)));
+   unshift (@INC, $prefix.'/share/automake-1.16')
+     unless $ENV{AUTOMAKE_UNINSTALLED};
+ }
+diff --git a/bin/automake b/bin/automake
+index ff1f453..e26e80c 100755
+--- a/bin/automake
++++ b/bin/automake
+@@ -26,8 +26,11 @@ use 5.006;
+ use strict;
+ use warnings FATAL => 'all';
+
++use Cwd qw(abs_path); use File::Basename;
++my $prefix;
+ BEGIN
+ {
++  $prefix = dirname(dirname(abs_path(__FILE__)));
+   unshift (@INC, $prefix.'/share/automake-1.16')
+     unless $ENV{AUTOMAKE_UNINSTALLED};
+
+diff --git a/share/automake-1.16/Automake/Config.pm b/share/automake-1.16/Automake/Config.pm
+index f0d78c9..35af767 100644
+--- a/share/automake-1.16/Automake/Config.pm
++++ b/share/automake-1.16/Automake/Config.pm
+@@ -21,6 +21,10 @@ use 5.006;
+ use strict;
+ use warnings FATAL => 'all';
+
++use Cwd qw(abs_path);
++use File::Basename;
++my $prefix = dirname(dirname(dirname(dirname(abs_path(__FILE__)))));
++
+ use Exporter;
+
+ our @ISA = qw (Exporter);
diff --git a/scripts/brewkit/fix-shebangs.ts b/scripts/brewkit/fix-shebangs.ts
index 6ab0d6a5..bc300c6d 100755
--- a/scripts/brewkit/fix-shebangs.ts
+++ b/scripts/brewkit/fix-shebangs.ts
@@ -47,18 +47,18 @@ for (const path of Deno.args) {
   const [line0, ...lines] = txt.split("\n") //lol
 
   const match = line0.match(/^#!\s*(\/[^\s]+)/)
-  if (match) {
-    switch (match[1]) {
-    case "/usr/bin/env":
-    case "/bin/sh":
-      console.verbose({ line0, path })
-      console.verbose("^^ skipped acceptable shebang")
-      continue
-    }
+  if (!match) throw new Error()
+  const interpreter = match[1]
+
+  switch (interpreter) {
+  case "/usr/bin/env":
+  case "/bin/sh":
+    console.verbose({ line0, path })
+    console.verbose("^^ skipped acceptable shebang")
+    continue
   }
 
-  const interpreter = new Path(line0.slice(2)).basename()
-  const shebang = `#!/usr/bin/env ${interpreter}`
+  const shebang = `#!/usr/bin/env ${new Path(interpreter).basename()}`
 
   const rewrite = undent`
     ${shebang}