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| author | Nathanael Nerode <neroden@gcc.gnu.org> | 2003-05-18 15:49:06 +0000 |
|---|---|---|
| committer | Nathanael Nerode <neroden@gcc.gnu.org> | 2003-05-18 15:49:06 +0000 |
| commit | dd12c3a89026d00b90a5fdfee40c4f62ca6c86ed (patch) | |
| tree | f94c0cfec0cd9c5192b8b564fed5ef6acdcd7eb1 /config/acx.m4 | |
| parent | 5ad1c190f3057dbd3ef0172eb1392b710ee1e4f6 (diff) | |
| download | gdb-dd12c3a89026d00b90a5fdfee40c4f62ca6c86ed.zip gdb-dd12c3a89026d00b90a5fdfee40c4f62ca6c86ed.tar.gz gdb-dd12c3a89026d00b90a5fdfee40c4f62ca6c86ed.tar.bz2 | |
<top level>
* configure.in: Switch more things to use maybe dependencies.
Rearrange a little. Use GCC_TOPLEV_SUBDIRS.
* configure: Regenerate.
* Makefile.tpl: Switch more things to use maybe dependencies.
* Makefile.in: Regenerate.
<config>
* config/acx.m4: Introduce _GCC_TOPLEV_NONCANONICAL_BUILD,
_GCC_TOPLEV_NONCANOICAL_HOST, _GCC_TOPLEV_NONCANONICAL_TARGET,
GCC_TOPLEV_SUBDIRS.
Diffstat (limited to 'config/acx.m4')
| -rw-r--r-- | config/acx.m4 | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/config/acx.m4 b/config/acx.m4 index 4e16bcd..ea5cb07 100644 --- a/config/acx.m4 +++ b/config/acx.m4 @@ -1,6 +1,67 @@ # Autoconf M4 include file defining utility macros for complex Canadian # cross builds. +dnl #### +dnl # _GCC_TOPLEV_NONCANONICAL_BUILD +dnl # $build_alias or canonical $build if blank. +dnl # Used when we would use $build_alias, but empty is not OK. +AC_DEFUN([_GCC_TOPLEV_NONCANONICAL_BUILD], +[AC_REQUIRE([AC_CANONICAL_BUILD]) []dnl +case ${build_alias} in + "") build_noncanonical=${build} ;; + *) build_noncanonical=${build_alias} ;; +esac +]) []dnl # _GCC_TOPLEV_NONCANONICAL_BUILD + +dnl #### +dnl # _GCC_TOPLEV_NONCANONICAL_HOST +dnl # $host_alias, or $build_noncanonical if blank. +dnl # Used when we would use $host_alias, but empty is not OK. +AC_DEFUN([_GCC_TOPLEV_NONCANONICAL_HOST], +[AC_REQUIRE([_GCC_TOPLEV_NONCANONICAL_BUILD]) []dnl +case ${host_alias} in + "") host_noncanonical=${build_noncanonical} ;; + *) host_noncanonical=${host_alias} ;; +esac +]) []dnl # _GCC_TOPLEV_NONCANONICAL_HOST + +dnl #### +dnl # _GCC_TOPLEV_NONCANONICAL_TARGET +dnl # $target_alias or $host_noncanonical if blank. +dnl # Used when we would use $target_alias, but empty is not OK. +AC_DEFUN([_GCC_TOPLEV_NONCANONICAL_TARGET], +[AC_REQUIRE([_GCC_TOPLEV_NONCANONICAL_HOST]) []dnl +case ${target_alias} in + "") target_noncanonical=${host_noncanonical} ;; + *) target_noncanonical=${target_alias} ;; +esac +]) []dnl # _GCC_TOPLEV_NONCANONICAL_TARGET + +dnl #### +dnl # GCC_TOPLEV_SUBDIRS +dnl # GCC & friends build 'build', 'host', and 'target' tools. These must +dnl # be separated into three well-known subdirectories of the build directory: +dnl # build_subdir, host_subdir, and target_subdir. The values are determined +dnl # here so that they can (theoretically) be changed in the future. They +dnl # were previously reproduced across many different files. +dnl # +dnl # This logic really amounts to very little with autoconf 2.13; it will +dnl # amount to a lot more with autoconf 2.5x. +AC_DEFUN([GCC_TOPLEV_SUBDIRS], +[AC_REQUIRE([_GCC_TOPLEV_NONCANONICAL_TARGET]) []dnl +AC_REQUIRE([_GCC_TOPLEV_NONCANONICAL_BUILD]) []dnl +# Prefix 'build-' so this never conflicts with target_subdir. +build_subdir="build-${build_noncanonical}" +# Not really a subdirectory, but here for completeness. +host_subdir=. +# No prefix. +target_subdir=${target_noncanonical} +AC_SUBST([build_subdir]) []dnl +AC_SUBST([host_subdir]) []dnl +AC_SUBST([target_subdir]) []dnl +]) []dnl # GCC_TOPLEV_SUBDIRS + + #### # _NCN_TOOL_PREFIXES: Some stuff that oughtta be done in AC_CANONICAL_SYSTEM # or AC_INIT. |