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authorjbglaw <jbglaw@138bc75d-0d04-0410-961f-82ee72b054a4>2014-11-26 21:53:35 +0000
committerjbglaw <jbglaw@138bc75d-0d04-0410-961f-82ee72b054a4>2014-11-26 21:53:35 +0000
commit6ded91ccc4ab1c8ae26bb20c345df44d2aef34a2 (patch)
tree4ddc981b730aadfcb987cdbcc01800e844f28f88 /config
parentb4140ddb5b7ba1368b6dd3b1576f65e695e6390e (diff)
downloadgcc-6ded91ccc4ab1c8ae26bb20c345df44d2aef34a2.tar.gz
Merge the ./config directory between GCC and Binutils
This pulls in the missing Binutils pieces into the ./config directory. Contains these missing Binutils changes: 2014-08-14 Alan Modra <amodra@gmail.com> * 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. 2014-08-19 Alan Modra <amodra@gmail.com> * plugins.m4 (AC_PLUGINS): If plugins are enabled, add -ldl to LIBS via AC_SEARCH_LIBS. For this commit: 2014-11-26 Jan-Benedict Glaw <jbglaw@lug-owl.de> * config/plugins.m4: Merge from Binutils. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@218102 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'config')
-rw-r--r--config/plugins.m426
1 files changed, 18 insertions, 8 deletions
diff --git a/config/plugins.m4 b/config/plugins.m4
index 7ee8412aa37..513c690e1b5 100644
--- a/config/plugins.m4
+++ b/config/plugins.m4
@@ -1,11 +1,21 @@
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]
+ )
+ if test "$plugins" = "yes"; then
+ AC_SEARCH_LIBS([dlopen], [dl])
+ fi
])