fs2open: fix libtool usage

[Yorick Hardy <yorickhardy%gmail.com@localhost>]

Module Name:	pkgsrc-wip
Committed By:	Yorick Hardy <yorickhardy%gmail.com@localhost>
Pushed By:	yhardy
Date:		Fri Mar 31 01:27:02 2017 +0200
Changeset:	4b94dc1658b140f190d2661a2139bd43c07aabe3

Modified Files:
	fs2open/Makefile

Log Message:
fs2open: fix libtool usage

To see a diff of this commit:
https://wip.pkgsrc.org/cgi-bin/gitweb.cgi?p=pkgsrc-wip.git;a=commitdiff;h=4b94dc1658b140f190d2661a2139bd43c07aabe3

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

diffstat:
 fs2open/Makefile | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diffs:
diff --git a/fs2open/Makefile b/fs2open/Makefile
index 99fac26a1b..4979af26e0 100644
--- a/fs2open/Makefile
+++ b/fs2open/Makefile
@@ -15,7 +15,8 @@ WRKSRC=		${WRKDIR}/fs2_open_${PKGVERSION_NOREV:S/./_/g}
 
 GNU_CONFIGURE=	yes
 USE_LANGUAGES=	c c++
-USE_TOOLS+=	aclocal autoconf automake libtool pkg-config
+USE_TOOLS+=	aclocal autoconf automake pkg-config
+USE_LIBTOOL=	yes
 
 INSTALLATION_DIRS=	bin
 LUA_VERSIONS_ACCEPTED=	51