diff --git a/bash-5.1/Cargo.toml b/bash-5.1/Cargo.toml
index 3c97c62efc0b4de4ec23dcf1ecdead990980c148..48dca7e2264e2c3503fafd3f43eed8fe91c141a2 100644
--- a/bash-5.1/Cargo.toml
+++ b/bash-5.1/Cargo.toml
@@ -2,6 +2,9 @@
 name = "rsbash"
 version = "0.1.0"
 edition = "2021"
+[lib]
+name = "rsbash"
+crate-type = ["cdylib"]
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 [workspace]
diff --git a/bash-5.1/configure b/bash-5.1/configure
index 0f1d3ed178f6339ad64abc93514065c467771d81..0d917697efd3adc03a884f7dcce0942c0899228d 100755
--- a/bash-5.1/configure
+++ b/bash-5.1/configure
@@ -4231,7 +4231,7 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 if test -n "$want_auto_cflags"; then
 	AUTO_CFLAGS="-g ${GCC+-O2}"
 	AUTO_LDFLAGS="-g ${GCC+-O2}"
-	STYLE_CFLAGS="${GCC+-Wno-parentheses} ${GCC+-Wno-format-security}"
+	STYLE_CFLAGS="${GCC+-Wno-parentheses} ${GCC+-Wno-format-security} ${GCC+-fPIC}"
 else
 	AUTO_CFLAGS= AUTO_LDFLAGS= STYLE_CFLAGS=
 fi
@@ -20255,6 +20255,7 @@ fi
 $as_echo "using $bash_cv_termcap_lib" >&6; }
 if test $bash_cv_termcap_lib = gnutermcap && test -z "$prefer_curses"; then
 LDFLAGS="$LDFLAGS -L./lib/termcap"
+
 TERMCAP_LIB="./lib/termcap/libtermcap.a"
 TERMCAP_DEP="./lib/termcap/libtermcap.a"
 elif test $bash_cv_termcap_lib = libtermcap && test -z "$prefer_curses"; then
diff --git a/bash-5.1/execute_cmd.c b/bash-5.1/execute_cmd.c
index c86c1a079e4f8f588e2dee545c7bb90279466550..ecd509c32581a4e37a2b5e4ab5eb4bb138891e59 100644
--- a/bash-5.1/execute_cmd.c
+++ b/bash-5.1/execute_cmd.c
@@ -110,6 +110,8 @@ extern int errno;
 #  include <mbstr.h>		/* mbschr */
 #endif
 
+#  include "./rsbuiltins.h"
+
 extern int command_string_index;
 extern char *the_printed_command;
 extern time_t shell_start_time;
@@ -4735,6 +4737,7 @@ execute_builtin (builtin, words, flags, subshell)
   error_trap = 0;
   should_keep = 0;
 
+  r_execute_cmd();
   /* The eval builtin calls parse_and_execute, which does not know about
      the setting of flags, and always calls the execution functions with
      flags that will exit the shell on an error if -e is set.  If the
@@ -5308,7 +5311,6 @@ execute_builtin_or_function (words, builtin, var, redirects,
   int ofifo, nfifo, osize;
   void *ofifo_list;
 #endif
-
 #if defined (PROCESS_SUBSTITUTION)
   begin_unwind_frame ("saved_fifos");
   /* If we return, we longjmp and don't get a chance to restore the old
diff --git a/bash-5.1/rsbuiltins.h b/bash-5.1/rsbuiltins.h
new file mode 100644
index 0000000000000000000000000000000000000000..f3b7f9be9d9ad1014d1aab6e2550fd762765ebc1
--- /dev/null
+++ b/bash-5.1/rsbuiltins.h
@@ -0,0 +1,2 @@
+#include <stdio.h>
+int r_execute_cmd();
diff --git a/bash-5.1/src/lib.rs b/bash-5.1/src/lib.rs
new file mode 100644
index 0000000000000000000000000000000000000000..874f7e601d0de1901eee964f3b7613a623bc330a
--- /dev/null
+++ b/bash-5.1/src/lib.rs
@@ -0,0 +1,5 @@
+#[no_mangle]
+pub extern "C" fn r_execute_cmd() {
+    println!("hello");
+}
+
diff --git a/record.txt b/record.txt
index 06e567b11dfdafeaf7d3edcc89864149383aeab6..535d2b01d3397c2228490875defc92370602ca46 100644
--- a/record.txt
+++ b/record.txt
@@ -5,3 +5,4 @@
 5
 6
 7
+8