From: Debian PHP Maintainers <pkg-php-maint@lists.alioth.debian.org>
Date: Sat, 2 May 2015 10:26:51 +0200
Subject: we_WANT_libtool

---
 build/build2.mk | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/build/build2.mk b/build/build2.mk
index 7b86f3d..68436b2 100644
--- a/build/build2.mk
+++ b/build/build2.mk
@@ -43,7 +43,8 @@ $(TOUCH_FILES):
 
 aclocal.m4: configure.ac acinclude.m4
 	@echo rebuilding $@
-	cat acinclude.m4 ./build/libtool.m4 > $@
+	libtoolize --copy --install --automake --force
+	aclocal
 
 configure: aclocal.m4 configure.ac $(config_m4_files)
 	@echo rebuilding $@