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| author | Alan Modra <amodra@gmail.com> | 2014-08-14 13:46:09 +0930 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2014-08-14 13:46:09 +0930 |
| commit | b879806f2fdd2eca7092d7b854d6cbbbbbd0493b (patch) | |
| tree | a59c6a936d98145ac0def25de34aafef89675366 /config/plugins.m4 | |
| parent | 23ebe1a0bd86fdae83ca738cf75be67b58703756 (diff) | |
| download | binutils-gdb-b879806f2fdd2eca7092d7b854d6cbbbbbd0493b.tar.gz | |
configury changes to make ld plugin support controlled by --enable-plugins
This also makes --enable-plugins default to on for hosts that can
support plugins, so we have consistent lto toolchain support. The
ACX_LARGEFILE moves aren't strictly necessary, but are harmless and
will be necessary if plugin support is extended to more hosts via
libtool's dlopen support. I started down that path then decided it
was more work than I was interested in doing. (ACX_LARGEFILE invokes
AC_PLUGINS.)
config/
* plugins.m4: Test for dlfcn.h or windows.h here to set default
for --enable-plugins. Report error if someone tries to enable
plugins on a host we don't support.
bfd/
* configure.ac: Delete redundant plugin related checks.
* configure: Regenerate.
binutils/
* configure.ac: Move ACX_LARGEFILE after LT_INIT.
* config.in: Regenerate.
* configure: Regenerate.
gas/
* configure.ac: Move ACX_LARGEFILE after LT_INIT.
* config.in: Regenerate.
* configure: Regenerate.
gprof/
* configure.ac: Move ACX_LARGEFILE after LT_INIT.
* configure: Regenerate.
* gconfig.in: Regenerate.
ld/
* configure.ac: Move AC_PROG_CC and other macros earlier. Delete
plugin checks now done in config/plugins.m4.
* config.in: Regenerate.
* configure: Regenerate.
Diffstat (limited to 'config/plugins.m4')
| -rw-r--r-- | config/plugins.m4 | 23 |
1 files changed, 15 insertions, 8 deletions
diff --git a/config/plugins.m4 b/config/plugins.m4 index 7ee8412aa37..f65fdcb9d2c 100644 --- a/config/plugins.m4 +++ b/config/plugins.m4 @@ -1,11 +1,18 @@ AC_DEFUN([AC_PLUGINS], [ -AC_ARG_ENABLE([plugins], -AS_HELP_STRING([--enable-plugins], [Enable support for plugins (defaults no)]), -[case "${enableval}" in - yes | "") plugins=yes ;; - no) plugins=no ;; - *) plugins=yes ;; - esac], -[plugins=no]) + maybe_plugins=no + AC_CHECK_HEADERS([dlfcn.h], [maybe_plugins=yes], [], [AC_INCLUDES_DEFAULT]) + AC_CHECK_HEADERS([windows.h], [maybe_plugins=yes], [], [AC_INCLUDES_DEFAULT]) + + AC_ARG_ENABLE([plugins], + AS_HELP_STRING([--enable-plugins], [Enable support for plugins]), + [case "${enableval}" in + no) plugins=no ;; + *) plugins=yes + if test "$maybe_plugins" != "yes" ; then + AC_MSG_ERROR([Building with plugin support requires a host that supports dlopen.]) + fi ;; + esac], + [plugins=$maybe_plugins] + ) ]) |