diff --git a/biology/ncbi-blast+/Makefile b/biology/ncbi-blast+/Makefile
index 61a432961bbd..078972a6f207 100644
--- a/biology/ncbi-blast+/Makefile
+++ b/biology/ncbi-blast+/Makefile
@@ -1,75 +1,75 @@
 PORTNAME=	ncbi-blast+
 DISTVERSION=	2.12.0
 PORTREVISION=	4
 CATEGORIES=	biology perl5 python
 MASTER_SITES=	https://ftp.ncbi.nlm.nih.gov/blast/executables/blast+/LATEST/ \
 		https://ftp.ncbi.nlm.nih.gov/blast/executables/blast+/${PORTVERSION}/
 DISTNAME=	ncbi-blast-${PORTVERSION}+-src
 
 MAINTAINER=	jwb@FreeBSD.org
 COMMENT=	NCBI implementation of Basic Local Alignment Search Tool
 
 LICENSE=	PD
 LICENSE_FILE=	${WRKSRC}/scripts/projects/blast/LICENSE
 
 LIB_DEPENDS=	libpcre.so:devel/pcre \
 		liblmdb.so:databases/lmdb \
 		liblzo2.so:archivers/lzo2 \
 		libgnutls.so:security/gnutls \
 		libtspi.so:security/trousers \
 		libgmp.so:math/gmp \
 		libidn2.so:dns/libidn2 \
 		libnettle.so:security/nettle \
 		libhogweed.so:security/nettle \
 		libtasn1.so:security/libtasn1 \
 		libp11-kit.so:security/p11-kit \
 		libgcrypt.so:security/libgcrypt \
 		libgpg-error.so:security/libgpg-error \
 		libsqlite3.so:databases/sqlite3 \
 		libuv.so:devel/libuv \
 		libnghttp2.so:www/libnghttp2 \
 		libgrpc.so:devel/grpc
 RUN_DEPENDS=	p5-List-MoreUtils>=0:lang/p5-List-MoreUtils \
 		p5-JSON>=0:converters/p5-JSON
 
 USES=		compiler:c++14-lang gmake localbase:ldflags shebangfix perl5 python:3.6+
 USE_LDCONFIG=	yes
 
 SHEBANG_FILES=	src/app/blast/legacy_blast.pl \
 		src/app/blast/update_blastdb.pl \
 		src/app/blast/cleanup-blastdb-volumes.py \
 		src/app/blast/get_species_taxids.sh \
 		src/app/winmasker/windowmasker_2.2.22_adapter.py
 GNU_CONFIGURE=	yes
 
 # configure chooses /usr/local/bin/ar with no flags
 # FreeBSD boost port flagged by configure as untested version
 # --libdir=${PREFIX}/lib/ncbi-tools++ doesn't respect DESTDIR, so do
 # a postinstall mv.
 CONFIGURE_ARGS=	AR="ar cr" --without-boost --libdir=${PREFIX}/lib/ncbi-tools++
 
 CONFLICTS_INSTALL=	ncbi-cxx-toolkit
 
 WRKSRC_SUBDIR=	c++
 
+.if !exists(/usr/include/omp.h)
+CONFIGURE_ARGS+=	--without-openmp
+.endif
+
 .include <bsd.port.pre.mk>
 
 .if ${CHOSEN_COMPILER_TYPE} == gcc
 # In case of problems: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=220822
 LDFLAGS+=	-latomic # Only exists in gcc libs
 .endif
 
-.if ${ARCH} == powerpc
-CONFIGURE_ARGS+=	--without-openmp
-.endif
-
 post-install:
 	@${RM} ${STAGEDIR}${PREFIX}/include/ncbi-tools++/*/*/.cvsignore.extra
 	@${RM} -rf ${STAGEDIR}${PREFIX}/lib/X11
 	@${RM} ${STAGEDIR}${PREFIX}/include/ncbi-tools++/common/config/ncbiconf_msvc_site.h.in
 	@${RM} ${STAGEDIR}${PREFIX}/include/ncbi-tools++/common/ncbi_build_ver.h.in
 	@${RM} ${STAGEDIR}${PREFIX}/include/ncbi-tools++/common/ncbi_revision.h.in
 	@${RMDIR} ${STAGEDIR}${PREFIX}/lib/debug
 	${STRIP_CMD} ${STAGEDIR}${PREFIX}/lib/ncbi-tools++/*.so
 
 .include <bsd.port.post.mk>