* libtool.m4 (_LT_COMPILER_BOILERPLATE, _LT_LINKER_BOILERPLATE):

* libtool.m4 (_LT_COMPILER_BOILERPLATE, _LT_LINKER_BOILERPLATE):
Rewrite to not use unchecked `printf', for old systems like
SunOS 4.1.
(AC_LIBTOOL_COMPILER_OPTION, AC_LIBTOOL_LINKER_OPTION)
(AC_LIBTOOL_PROG_CC_C_O, AC_LIBTOOL_PROG_LD_SHLIBS): Likewise.
(AC_LIBTOOL_LANG_C_CONFIG): Adjust: use literal newlines in
`lt_simple_compile_test_code' and `lt_simple_link_test_code'.
(AC_LIBTOOL_LANG_CXX_CONFIG, AC_LIBTOOL_LANG_F77_CONFIG)
(AC_LIBTOOL_LANG_GCJ_CONFIG, AC_LIBTOOL_LANG_RC_CONFIG):
Likewise.
Bug report by Bruce Becker and Mark Andrews.