| * You currently need GNU make to build the Libtool package itself. | |
| * On AIX there are two different styles of shared linking, one in | |
| which symbols are bound at link-time and one in which symbols are | |
| bound at runtime only, similar to ELF. In case of doubt use | |
| `LDFLAGS=-Wl,-brtl' for the latter style. | |
| * On AIX, native tools are to be preferred over binutils; especially | |
| for C++ code, if using the AIX Toolbox GCC 4.0 and binutils, | |
| configure with `AR=/usr/bin/ar LD=/usr/bin/ld NM='/usr/bin/nm -B''. | |
| * On AIX, the `/bin/sh' is very slow due to its inefficient handling | |
| of here-documents. A modern shell is preferable: | |
| CONFIG_SHELL=/bin/bash; export $CONFIG_SHELL | |
| $CONFIG_SHELL ./configure [...] | |
| * For C++ code with templates, it may be necessary to specify the | |
| way the compiler will generate the instantiations. For Portland | |
| pgCC version5, use `CXX='pgCC --one_instantiation_per_object'' and | |
| avoid parallel `make'. | |
| * On Darwin, for C++ code with templates you need two level shared | |
| libraries. Libtool builds these by default if | |
| `MACOSX_DEPLOYMENT_TARGET' is set to 10.3 or later at `configure' | |
| time. See `rdar://problem/4135857' for more information on this | |
| issue. | |
| * The default shell on UNICOS 9, a ksh 88e variant, is too buggy to | |
| correctly execute the libtool script. Users are advised to | |
| install a modern shell such as GNU bash. | |
| * Some HP-UX `sed' programs are horribly broken, and cannot handle | |
| libtool's requirements, so users may report unusual problems. | |
| There is no workaround except to install a working `sed' (such as | |
| GNU sed) on these systems. | |
| * The vendor-distributed NCR MP-RAS `cc' programs emits copyright on | |
| standard error that confuse tests on size of `conftest.err'. The | |
| workaround is to specify `CC' when run configure with `CC='cc | |
| -Hnocopyr''. | |
| * Any earlier DG/UX system with ELF executables, such as R3.10 or | |
| R4.10, is also likely to work, but hasn't been explicitly tested. | |
| * On Reliant Unix libtool has only been tested with the Siemens | |
| C-compiler and an old version of `gcc' provided by Marco Walther. | |
| * `libtool.m4', `ltdl.m4' and the `configure.ac' files are marked to | |
| use autoconf-mode, which is distributed with GNU Emacs 21, | |
| Autoconf itself, and all recent releases of XEmacs. | |
| * When building on some linux systems for multilib targets `libtool' | |
| sometimes guesses the wrong paths that the linker and dynamic | |
| linker search by default. If this occurs, you may override | |
| libtool's guesses at `configure' time by setting the `autoconf' | |
| cache variables `lt_cv_sys_lib_search_path_spec' and | |
| `lt_cv_sys_lib_dlsearch_path_spec' respectively to the correct | |
| search paths. | |