diff --git a/vars/build.vars b/vars/build.vars
index 672e960..b2eadce 100644
--- a/vars/build.vars
+++ b/vars/build.vars
@@ -211,7 +211,7 @@ RUNTIME_CFLAGS_CONFIGURE="${RUNTIME_CFLAGS_CONFIGURE_DEFAULT}";
 RUNTIME_CONFIGURE_ARGS="--prefix= --strict --host=${TARGET}";
 RUNTIME_ENV_VARS_EXTRA="CFLAGS_PATH=-I${PREFIX_NATIVE}/include:LDFLAGS_PATH=-L${PREFIX_NATIVE}/lib";
 RUNTIME_MAKEFLAGS_INSTALL="DESTDIR=${PREFIX_NATIVE}";
-RUNTIME_PACKAGES="psxtypes pemagine dalist ntcon ntapi psxscl psxscl_strace ntctty ptycon";
+RUNTIME_PACKAGES="psxtypes pemagine dalist ldso ntcon ntapi psxscl psxscl_strace ntctty ptycon";
 RUNTIME_PREFIX="${PREFIX_NATIVE}";
 : ${PKG_PSXTYPES_URLS_GIT:=psxtypes=${GITROOT}/psxtypes};
 : ${PKG_PSXTYPES_BUILD_DIR:=psxtypes};
@@ -224,6 +224,11 @@ RUNTIME_PREFIX="${PREFIX_NATIVE}";
 : ${PKG_DALIST_URLS_GIT:=dalist=${GITROOT}/dalist};
 : ${PKG_DALIST_INSTALL_TARGET_EXTRA:=install-lib};
 : ${PKG_DALIST_SUBDIR:=dalist};
+: ${PKG_LDSO_URLS_GIT:=pemagine=${GITROOT}/pemagine};
+: ${PKG_LDSO_CFLAGS_CONFIGURE_EXTRA:="-O0 -DPE_LDSO"};
+: ${PKG_LDSO_CONFIGURE_ARGS_EXTRA:=--disable-shared};
+: ${PKG_LDSO_MAKEFLAGS_BUILD_EXTRA:=STATIC_LIB_NAME=libldso.a};
+: ${PKG_LDSO_SUBDIR:=pemagine};
 : ${PKG_NTCON_URLS_GIT:=ntcon=${GITROOT}/ntcon};
 : ${PKG_NTCON_INSTALL_TARGET_EXTRA:=install-lib};
 : ${PKG_NTCON_SUBDIR:=ntcon};