speex: drop autoconf build requires.

media-libs/speex/speex-1.2.0.recipe

@@ -16,7 +16,7 @@ COPYRIGHT="2002-2009 Xiph.org Foundation
 	2003 EpicGames
 	1992-1994 Jutta Degener, Carsten Bormann"
 LICENSE="Speex"
-REVISION="3"
+REVISION="4"
 SOURCE_URI="http://downloads.xiph.org/releases/speex/speex-$portVersion.tar.gz"
 CHECKSUM_SHA256="eaae8af0ac742dc7d542c9439ac72f1f385ce838392dc849cae4536af9210094"
 
@@ -51,9 +51,6 @@ BUILD_REQUIRES="
 	devel:libogg$secondaryArchSuffix
 	"
 BUILD_PREREQUIRES="
-	cmd:aclocal_1.15
-	cmd:autoconf
-	cmd:automake_1.15
 	cmd:gcc$secondaryArchSuffix
 	cmd:ld$secondaryArchSuffix
 	cmd:libtoolize$secondaryArchSuffix
@@ -63,11 +60,7 @@ BUILD_PREREQUIRES="
 
 BUILD()
 {
-	libtoolize --copy --force --install
-	aclocal-1.15
-	autoconf
-	automake-1.15 --add-missing
-	runConfigure ./configure
+	AUTOCONF=: AUTOHEADER=: AUTOMAKE=: ACLOCAL=: runConfigure ./configure
 	make $jobArgs
 }