autoconf213: choose gawk

we can't know which awk is present at build time

dev-build/autoconf/autoconf213-2.13.recipe

@@ -6,7 +6,7 @@ various configuration options."
 HOMEPAGE="http://www.gnu.org/software/autoconf/"
 COPYRIGHT="1992-1998 Free Software Foundation, Inc."
 LICENSE="GNU GPL v2"
-REVISION="5"
+REVISION="6"
 SOURCE_URI="http://ftp.gnu.org/gnu/autoconf/autoconf-$portVersion.tar.gz"
 CHECKSUM_SHA256="f0611136bee505811e9ca11ca7ac188ef5323a8e2ef19cffd3edb3cf08fd791e"
 SOURCE_DIR="autoconf-$portVersion"
@@ -24,9 +24,9 @@ PROVIDES="
 	"
 REQUIRES="
 	haiku
-	cmd:awk
 	cmd:cmp
 	cmd:expr
+	cmd:gawk
 	cmd:grep
 	cmd:m4 >= 1.4
 	cmd:mkdir
@@ -39,6 +39,7 @@ BUILD_REQUIRES="
 	"
 BUILD_PREREQUIRES="
 	cmd:autoconf
+	cmd:gawk
 	cmd:gcc
 	cmd:make
 	"