internal/rosa/perl: compile dynamic libperl

Required by texinfo 7.3.

Signed-off-by: Ophestra <cat@gensokyo.uk>

internal/rosa/perl.go

@@ -39,12 +39,13 @@ rm -f /system/bin/ps # perl does not like toybox ps
 			{"Dldflags", `"${LDFLAGS:-''}"`},
 			{"Doptimize", "'-O2 -fno-strict-aliasing'"},
 			{"Duseithreads"},
+			{"Duseshrplib"},
 		},
 		Check: []string{
 			"TEST_JOBS=256",
 			"test_harness",
 		},
-		Install: "./perl -Ilib -I. installperl --destdir=/work",
+		Install: `LD_LIBRARY_PATH="$PWD" ./perl -Ilib -I. installperl --destdir=/work`,
 	}), version
 }
 func init() {