gcc/config/plugins.m4
Jan-Benedict Glaw 1d725bb412 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.

From-SVN: r218102
2014-11-26 21:53:35 +00:00

22 lines
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Plaintext

AC_DEFUN([AC_PLUGINS],
[
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
])