It's x86_64...

print/acroread/distinfo

@@ -1,4 +1,4 @@
-$NetBSD: distinfo,v 1.7 2008/08/10 16:09:17 joerg Exp $
+$NetBSD: distinfo,v 1.8 2008/08/19 13:15:02 joerg Exp $
 
 SHA1 (fdec-rs-405.tar.gz) = cf38c862af69b0bd1c76e5b182f6026bfe552250
 RMD160 (fdec-rs-405.tar.gz) = 75dd87c6798d98cee412de5e35e89f4d82ebadc5
@@ -12,4 +12,4 @@ Size (sunsparc-rs-405.tar.gz) = 6557221 bytes
 SHA1 (sunx86-ar-405.tar.gz) = 87392070fb6fb9f64a90beecdd072362c6b8232c
 RMD160 (sunx86-ar-405.tar.gz) = 3c47abd00aae9bcf56adb846b9128585dcffbb77
 Size (sunx86-ar-405.tar.gz) = 5661973 bytes
-SHA1 (patch-aa) = 2c83e2a923239930302703b29a8b4ca721c7a5f4
+SHA1 (patch-aa) = 68c5f6a97eadc0c50094b168e718e55aec90c729

print/acroread/files/acroread.diff

@@ -1,4 +1,4 @@
-$NetBSD: acroread.diff,v 1.6 2008/08/10 16:09:17 joerg Exp $
+$NetBSD: acroread.diff,v 1.7 2008/08/19 13:15:02 joerg Exp $
 
 --- acroread.orig	Mon Apr 17 16:30:05 2000
 +++ acroread	Mon Apr 17 16:33:30 2000
@@ -12,7 +12,7 @@ $NetBSD: acroread.diff,v 1.6 2008/08/10 16:09:17 joerg Exp $
 +        ACRO_CONFIG=alphaosf
 +        export ACRO_CONFIG
 +        ;;
-+      i386|amd64)
++      i386|x86_64)
 +        ACRO_CONFIG=intellinux
 +        export ACRO_CONFIG
 +        ;;

print/acroread/patches/patch-aa

@@ -1,4 +1,4 @@
-$NetBSD: patch-aa,v 1.6 2008/08/10 16:09:17 joerg Exp $
+$NetBSD: patch-aa,v 1.7 2008/08/19 13:15:02 joerg Exp $
 
 --- INSTALL.orig	Wed Jan 26 19:40:25 2000
 +++ INSTALL	Mon Apr 17 16:20:38 2000
@@ -30,7 +30,7 @@ $NetBSD: patch-aa,v 1.6 2008/08/10 16:09:17 joerg Exp $
 +        DistDefaultNum="$DistAlphaOSFNum"
 +        DefaultName="DEC Alpha/OSF1"
 +        ;;  
-+      i386|amd64)
++      i386|x86_64)
 +        AcroDefaultNum="$AcroIntelLinuxNum"
 +        ExchDefaultNum="$ExchIntelLinuxNum"
 +        ReadDefaultNum="$ReadIntelLinuxNum"