diff --git a/buildenv b/buildenv
index ca4a527..51cf2b0 100644
--- a/buildenv
+++ b/buildenv
@@ -156,7 +156,7 @@ export ZOPEN_EXTRA_LIBS="-lffi" ## C,C++ libraries to append to LIBS (defaults t
 #export ZOPEN_CLEAN_OPTS="" ## Options to pass to clean up  program (defaults to 'clean')
 #export ZOPEN_CONFIGURE_MINIMAL="" ## Configuration program will not be passed CFLAGS, LDFLAGS, CPPFLAGS options but will get them from env vars.
 #export ZOPEN_CONFIGURE_OPTS="" ## Options to pass to configuration program (defaults to '--prefix=')
-export ZOPEN_EXTRA_CONFIGURE_OPTS="--disable-shared --disable-dln --disable-yjit --disable-rjit --without-valgrind --with-static-linked-ext" ## Extra configure options to pass to configuration program. (defaults to '')
+export ZOPEN_EXTRA_CONFIGURE_OPTS="--disable-shared --disable-dln --disable-yjit --disable-rjit --without-valgrind --with-static-linked-ext=yes --enable-load-relative" ## Extra configure options to pass to configuration program. (defaults to '')
 #export ZOPEN_INSTALL_OPTS="" ## Options to pass to installation program (defaults to 'install')
 export ZOPEN_MAKE_MINIMAL="yes" ## Build program will not be passed CFLAGS, LDFLAGS, CPPFLAGS options but will get them from env vars.
 #export ZOPEN_MAKE_OPTS="" ## Options to pass to build program (defaults to '-j')
diff --git a/patches/configure.patch b/patches/configure.patch
index 2fbdcd0..909ad6e 100644
--- a/patches/configure.patch
+++ b/patches/configure.patch
@@ -1,5 +1,5 @@
 diff --git a/configure b/configure
-index 7a391a2..02c7c41 100755
+index 7a391a2..cb427d0 100755
 --- a/configure
 +++ b/configure
 @@ -26423,6 +26423,7 @@ if test "x$ac_cv_func_fork_works" = xcross; then
@@ -35,3 +35,16 @@ index 7a391a2..02c7c41 100755
       dir=-1 ;; #(
    hppa*) :
       dir=+1 ;; #(
+@@ -31665,6 +31668,12 @@ fi
+ 
+ 	SOEXT=dylib
+ 	DLEXT=bundle ;; #(
++  openedition*) :
++    if test "$load_relative" = yes; then
++        LOAD_RELATIVE=1
++    fi
++	SOEXT=so
++	DLEXT=so ;; #(
+   cygwin*|msys*|mingw*|*djgpp*) :
+ 
+ 	LOAD_RELATIVE=1
diff --git a/patches/ruby.c.patch b/patches/ruby.c.patch
new file mode 100644
index 0000000..28ad7a3
--- /dev/null
+++ b/patches/ruby.c.patch
@@ -0,0 +1,45 @@
+diff --git a/ruby.c b/ruby.c
+index d2c168c..d097151 100644
+--- a/ruby.c
++++ b/ruby.c
+@@ -26,6 +26,10 @@
+ # include <dlfcn.h>
+ #endif
+ 
++#if defined(LOAD_RELATIVE) && defined(__MVS__)
++#include <sys/ps.h>
++#endif
++
+ #ifdef HAVE_UNISTD_H
+ # include <unistd.h>
+ #endif
+@@ -656,6 +660,29 @@ runtime_libruby_path(void)
+     }
+     rb_str_resize(fname, 0);
+     return path;
++#elif defined(__MVS__)
++    int token = 0;
++    W_PSPROC buf;
++    char exe_path[PS_PATHBLEN];
++    pid_t pid = getpid();
++
++    memset(&buf, 0, sizeof(buf));
++    buf.ps_pathptr = exe_path;
++    buf.ps_pathlen = sizeof(exe_path);
++
++    while (1) {
++        if ((token = w_getpsent(token, &buf, sizeof(buf))) <= 0)
++            break;
++        if (buf.ps_pid != pid)
++            continue;
++        char real_path[PATH_MAX];
++        if (realpath(exe_path, real_path))
++        {
++            return rb_str_new_cstr(real_path);
++        }
++        break; // Found entry, but realpath failed.
++    }
++    rb_fatal("failed to get executable path on z/OS");
+ #else
+ # error relative load path is not supported on this platform.
+ #endif
diff --git a/patches/thread_pthread.c.patch b/patches/thread_pthread.c.patch
index 0273540..5e044dd 100644
--- a/patches/thread_pthread.c.patch
+++ b/patches/thread_pthread.c.patch
@@ -1,5 +1,5 @@
 diff --git a/thread_pthread.c b/thread_pthread.c
-index 423814c..42992d5 100644
+index 423814c..e38c4bf 100644
 --- a/thread_pthread.c
 +++ b/thread_pthread.c
 @@ -2022,7 +2022,7 @@ native_thread_init_stack(rb_thread_t *th, void *local_in_parent_frame)
@@ -11,3 +11,12 @@ index 423814c..42992d5 100644
          /* This thread is the first thread, must be the main thread -
           * configure the native_main_thread object */
          native_thread_init_main_thread_stack(local_in_parent_frame);
+@@ -2045,7 +2045,7 @@ native_thread_init_stack(rb_thread_t *th, void *local_in_parent_frame)
+             }
+         }
+ #else
+-        rb_raise(rb_eNotImpError, "ruby engine can initialize only in the main thread");
++        //rb_raise(rb_eNotImpError, "ruby engine can initialize only in the main thread");
+ #endif
+     }
+