PKG_CHECK_MODULES([LIBCRYPTO], [libcrypto])
PKGCONFIG_PRIVATE_REQUIRES="$PKGCONFIG_PRIVATE_REQUIRES libcrypto"
fi
-AC_SUBST([SHA1_SOURCES], [$SHA1_SOURCES])
AC_SUBST([PKGCONFIG_PRIVATE_REQUIRES], [$PKGCONFIG_PRIVATE_REQUIRES])
AC_SUBST([PKGCONFIG_PRIVATE_LIBS], [$PKGCONFIG_PRIVATE_LIBS])