From b879806f2fdd2eca7092d7b854d6cbbbbbd0493b Mon Sep 17 00:00:00 2001 From: Alan Modra Date: Thu, 14 Aug 2014 13:46:09 +0930 Subject: 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. --- config/ChangeLog | 6 ++++++ config/plugins.m4 | 23 +++++++++++++++-------- 2 files changed, 21 insertions(+), 8 deletions(-) (limited to 'config') diff --git a/config/ChangeLog b/config/ChangeLog index 8212c31bb01..b11ca260fe0 100644 --- a/config/ChangeLog +++ b/config/ChangeLog @@ -1,3 +1,9 @@ +2014-08-14 Alan Modra + + * 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. + 2014-05-14 Sandra Loosemore * mt-nios2-elf: New file. 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] + ) ]) -- cgit v1.2.1