diff --git a/textproc/isearch/Makefile b/textproc/isearch/Makefile
index fb6acf343afc..6ffd4d33e88a 100644
--- a/textproc/isearch/Makefile
+++ b/textproc/isearch/Makefile
@@ -1,8 +1,8 @@
-# $NetBSD: Makefile,v 1.16 2017/08/16 20:45:46 wiz Exp $
+# $NetBSD: Makefile,v 1.17 2019/10/12 21:14:22 rillig Exp $
 
 DISTNAME=		Isearch-1.47.01
 PKGNAME=		isearch-1.47.01
-PKGREVISION=		1
+PKGREVISION=		2
 CATEGORIES=		textproc databases
 MASTER_SITES=		# http://www.etymon.com/pub/Isearch/
 
@@ -10,16 +10,17 @@ MAINTAINER=		pkgsrc-users@NetBSD.org
 #HOMEPAGE=		http://www.etymon.com/Isearch/
 COMMENT=		Advanced text indexing and searching system
 
+# isearch-1.47.01 doesn't declare the dependencies correctly
 MAKE_JOBS_SAFE=		no
 
 GNU_CONFIGURE=		yes
 USE_LANGUAGES=		c c++
 
-INSTALLATION_DIRS=	bin share/doc/isearch share/doc/html/isearch
+INSTALLATION_DIRS=	bin share/doc/isearch
 
 post-install:
 	${INSTALL_DATA} ${WRKSRC}/TUTORIAL ${DESTDIR}${PREFIX}/share/doc/isearch
 	${INSTALL_DATA} ${WRKSRC}/doc/DebugFirewall.doc ${DESTDIR}${PREFIX}/share/doc/isearch
-	${INSTALL_DATA} ${WRKSRC}/html/*.html ${DESTDIR}${PREFIX}/share/doc/html/isearch/
+	${INSTALL_DATA} ${WRKSRC}/html/*.html ${DESTDIR}${PREFIX}/share/doc/isearch/
 
 .include "../../mk/bsd.pkg.mk"
diff --git a/textproc/isearch/PLIST b/textproc/isearch/PLIST
index 87663213d8c7..a4faf397c1bc 100644
--- a/textproc/isearch/PLIST
+++ b/textproc/isearch/PLIST
@@ -1,13 +1,13 @@
-@comment $NetBSD: PLIST,v 1.4 2018/01/01 22:29:59 rillig Exp $
+@comment $NetBSD: PLIST,v 1.5 2019/10/12 21:14:22 rillig Exp $
 bin/Iget
 bin/Iindex
 bin/Isearch
 bin/Iutil
 bin/zpresent
 bin/zsearch
-share/doc/html/isearch/Isearch-cgi-tutorial.html
-share/doc/html/isearch/IsearchFeatures.html
-share/doc/html/isearch/IsearchTutorial.html
-share/doc/html/isearch/QuickStart.html
 share/doc/isearch/DebugFirewall.doc
+share/doc/isearch/Isearch-cgi-tutorial.html
+share/doc/isearch/IsearchFeatures.html
+share/doc/isearch/IsearchTutorial.html
+share/doc/isearch/QuickStart.html
 share/doc/isearch/TUTORIAL
diff --git a/textproc/isearch/distinfo b/textproc/isearch/distinfo
index 4447276ac076..3972744ecc33 100644
--- a/textproc/isearch/distinfo
+++ b/textproc/isearch/distinfo
@@ -1,4 +1,4 @@
-$NetBSD: distinfo,v 1.10 2015/11/04 01:59:35 agc Exp $
+$NetBSD: distinfo,v 1.11 2019/10/12 21:14:22 rillig Exp $
 
 SHA1 (Isearch-1.47.01.tar.gz) = 86761d6055fdd7b954b7ac9d9fd3d0084d758e3f
 RMD160 (Isearch-1.47.01.tar.gz) = 2e7f4c21d8a2d3cb194823a881ee7315f88de66c
@@ -13,7 +13,7 @@ SHA1 (patch-Isearch-cgi_search__form.cxx) = 3a982ba916cb18519bcca9c2bcc32c0fdd56
 SHA1 (patch-aa) = 256004c217dfa107583784f7f7f1ab75280db4e1
 SHA1 (patch-ab) = 2c03c3a208021d9a935c568f4062615d485aa260
 SHA1 (patch-ac) = 57451c09eda372d70fae7ad7f9db8b31926e369b
-SHA1 (patch-ad) = 7f53e7dfb6c5e37d2c4f6cb12e087c678d07df25
+SHA1 (patch-ad) = ea37eccec52ae6d62f55625a12805998c8e1fe40
 SHA1 (patch-ae) = c74006de168ef0a653ae6a407ee8ee99b0c9f236
 SHA1 (patch-doctype_anzlic.cxx) = d9ee2469a5870245238f525794bd6b4ca0f7c166
 SHA1 (patch-doctype_anzmeta.cxx) = 673e181aebdd8cb1f207c04cfdd89ea040f7b418
diff --git a/textproc/isearch/patches/patch-ad b/textproc/isearch/patches/patch-ad
index ffd5e7ee379d..836029b0fd9d 100644
--- a/textproc/isearch/patches/patch-ad
+++ b/textproc/isearch/patches/patch-ad
@@ -1,4 +1,6 @@
-$NetBSD: patch-ad,v 1.1 2007/12/01 16:42:27 rillig Exp $
+$NetBSD: patch-ad,v 1.2 2019/10/12 21:14:22 rillig Exp $
+
+Fix build with GCC 4.
 
 --- src/mergeunit.hxx.orig	1998-05-12 16:49:13.000000000 +0000
 +++ src/mergeunit.hxx	2007-12-01 16:40:09.000000000 +0000