Bug: https://bugs.gentoo.org/954831
--- a/configure.in
+++ b/configure.in
@@ -35,7 +35,7 @@
 AC_PROG_CC
 
 changequote(<<, >>)
-default_perl_path=`which perl | sed -e 's/\/\/*[^\/]*$//'`
+default_perl_path=`command -v perl | sed -e 's/\/\/*[^\/]*$//'`
 changequote([,])
 
 AC_ARG_WITH(perl,[  --with-perl=path-to-perl],
--- a/Makefile.PL
+++ b/Makefile.PL
@@ -34,7 +34,7 @@
     configure_mswin32();
 } else {
     local $ENV{TMPDIR} = $ENV{TMPDIR};
-    my $path_perl = ($^X =~ m!^/!o) ? $^X : `which $^X`;
+    my $path_perl = ($^X =~ m!^/!o) ? $^X : `command -v $^X`;
     my $cmd = "CC='$Config{cc}' CFLAGS='$Config{ccflags}'";
     if ($^O eq 'android') {
         # Work around a bug in Android's sh: