diff --git a/biology/ncbi-toolkit/Makefile b/biology/ncbi-toolkit/Makefile
index 5dfe289470cf..589f07a4436f 100644
--- a/biology/ncbi-toolkit/Makefile
+++ b/biology/ncbi-toolkit/Makefile
@@ -1,87 +1,87 @@
 PORTNAME=	ncbi-toolkit
 DISTVERSION=	2017.01.06	# containing BLAST v2.2.27 (? is this true)
-PORTREVISION=	9
+PORTREVISION=	10
 CATEGORIES=	biology
 MASTER_SITES=	ftp://ftp.ncbi.nlm.nih.gov/toolbox/ncbi_tools/old/${PORTVERSION:S/.//g}/
 DISTNAME=	ncbi
 DIST_SUBDIR=	${PORTNAME}-${PORTVERSION}
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	NCBI development toolkit, including BLAST 2 and GenBank/Entrez support
 WWW=		https://www.ncbi.nlm.nih.gov/IEB/ToolBox/MainPage/index.html
 
 LIB_DEPENDS=	libfontconfig.so:x11-fonts/fontconfig \
 		libgmp.so:math/gmp \
 		libgnutls.so:security/gnutls \
 		libhogweed.so:security/nettle \
 		libidn2.so:dns/libidn2 \
 		libnettle.so:security/nettle \
 		libp11-kit.so:security/p11-kit \
 		libpng.so:graphics/png \
 		libtasn1.so:security/libtasn1 \
 		libtspi.so:security/trousers \
 		libunistring.so:devel/libunistring
 
 USES=		gettext-runtime iconv jpeg motif xorg
 USE_XORG=	x11 xau xext xft xmu xrender xt
 
 CONFLICTS_INSTALL=	fhist # bin/test_regexp man/man1/fmerge.1.gz
 
 SUB_FILES=	pkg-message
 
 OPTIONS_DEFINE=	DOCS
 
 .include <bsd.port.options.mk>
 
 .if ${OPSYS} == FreeBSD
 CFLAGS+=	-Wno-error=int-conversion
 CFLAGS+=	-Wno-error=incompatible-function-pointer-types
 .endif
 
 post-patch:
 	@${REINPLACE_CMD} -e \
 		's|/usr/X11R6|${LOCALBASE}|g' ${WRKSRC}/make/makedis.csh
 	@${REINPLACE_CMD} -e \
 		'/^NCBI_CC/s|=.*|= ${CC}| ; \
 		 /^NCBI_LDFLGS1/s|=.*|= ${LDFLAGS}| ; \
 		 /^NCBI_OPTFLAG/s|= .*|= ${CFLAGS}| ; \
 		 /^NCBI_VIBLIBS/s|-lXp\ || ; \
 		 /^NCBI_DISTVIBLIBS/s|-lXp\ || ; \
 		 s|-I/usr/X11R6/include||g ; \
 		 s|-L/usr/X11R6/lib||g ; \
 		 s|/usr/local|${LOCALBASE}|g ; \
 		 s|-Wl,-Bstatic|| ; \
 		 s|-Wl,-Bdynamic||' ${WRKSRC}/platform/freebsd.ncbi.mk
 	@${REINPLACE_CMD} -e 's/%%ICONV_LIB%%/${ICONV_LIB}/' \
 		${WRKSRC}/make/makeall.unx ${WRKSRC}/make/makenet.unx
 
 # the ncbi-toolkit provides a shell script to drive the build
 # and we use it
 
 do-build:
 	@cd ${WRKDIR} && ./${DISTNAME}/make/makedis.csh
 
 # the ncbi-toolkit does not provide an install target
 # we thus roll our own
 
 do-install:
 	cd ${WRKSRC}/bin && ${INSTALL_PROGRAM} * ${STAGEDIR}${PREFIX}/bin
 	@${MKDIR} ${STAGEDIR}${PREFIX}/lib/${DISTNAME}
 	cd ${WRKSRC}/lib && ${INSTALL_DATA} *.a \
 		${STAGEDIR}${PREFIX}/lib/${DISTNAME}
 	@${MKDIR} ${STAGEDIR}${PREFIX}/include/${DISTNAME}/connect
 	cd ${WRKSRC}/include && ${INSTALL_DATA} *.h \
 		${STAGEDIR}${PREFIX}/include/${DISTNAME}
 	cd ${WRKSRC}/include/connect && ${INSTALL_DATA} *.h \
 		${STAGEDIR}${PREFIX}/include/${DISTNAME}/connect
 	cd ${WRKSRC}/doc/man && ${INSTALL_MAN} * \
 		${STAGEDIR}${PREFIX}/share/man/man1
 	@${MKDIR} ${STAGEDIR}${DATADIR}
 	cd ${WRKSRC}/data && ${INSTALL_DATA} * ${STAGEDIR}${DATADIR}
 
 do-install-DOCS-on:
 	@${MKDIR} ${STAGEDIR}${DOCSDIR}
 	@(cd ${WRKSRC}/doc && \
 		${COPYTREE_SHARE} . ${STAGEDIR}${DOCSDIR} '-not ( -name man -o -path ./man\/* )')
 
 .include <bsd.port.mk>
diff --git a/biology/ncbi-toolkit/files/patch-tools_readdb.c b/biology/ncbi-toolkit/files/patch-tools_readdb.c
new file mode 100644
index 000000000000..3e6b09a21b95
--- /dev/null
+++ b/biology/ncbi-toolkit/files/patch-tools_readdb.c
@@ -0,0 +1,16 @@
+-- Fix a chained comparison that modern Clang rejects with -Werror.
+-- C does not support 'a <= b <= c'; rewrite as 'a <= b && b <= c'.
+
+--- tools/readdb.c.orig	2026-07-10 18:56:47 UTC
++++ tools/readdb.c
+@@ -4893,8 +4893,8 @@ readdb_check_oid(ReadDBFILEPtr rdfp_head, Int4 oid)
+ 			if (s_SearchOidInLocalOidList(rdfp_var->oidlist, oid-rdfp_var->start) == 0) 
+                   		return TRUE;
+                 } else {
+-                	if (rdfp_var->start <= oid <= rdfp_var->stop)
+-                                return TRUE;	 
++                	if (rdfp_var->start <= oid && oid <= rdfp_var->stop)
++                                return TRUE;
+                 }
+                 rdfp_var = rdfp_var->next;
+         }