arpack: optionally enable MPI

arpack/.signature

@@ -1,5 +1,5 @@
 untrusted comment: verify with /etc/ports/jmq.pub
-RWTTPlFarK9CxLDcnSpaCDXVE51dUPzyZ+vYun+Gue0J94nqjWdF/QC63RCMKuJKuswNtt9NxHsuJO26besuMwfuU6kyIb/X4Ao=
-SHA256 (Pkgfile) = cf06df4a9a01f0ec60c3b4aff81b90f72c6867629458469b0adfe88a4f185276
+RWTTPlFarK9CxHahStD9iyglXXjBFxfekP2ouwxTZyRgamXq+97Xk9OXV08hzmeoMgcxu4OuwrmhaPGmXxVKhkZo1YZ93+tCMgg=
+SHA256 (Pkgfile) = f4d876290b2d284146e94205ae569c4ff55f2ed64c4179c17c6041c0cdd96ce5
 SHA256 (.footprint) = 8e5254dd79506227383f0a7cfa2ed5a3caf9bfebb359237538a3d7c058e2723d
 SHA256 (arpack-3.9.0.tar.gz) = 24f2a2b259992d3c797d80f626878aa8e2ed5009d549dad57854bbcfb95e1ed0

arpack/Pkgfile

@@ -2,6 +2,7 @@
 # URL: https://github.com/opencollab/arpack-ng
 # Maintainer: John McQuah, jmcquah at disroot dot org
 # Depends on: lapack
+# Optional: openmpi
 
 name=arpack
 version=3.9.0
@@ -10,19 +11,19 @@ source=(https://github.com/opencollab/arpack-ng/archive/refs/tags/$version.tar.g
 renames=($name-$version.tar.gz)
 
 build() {
-	mkdir build && cd build
+  mkdir build && cd build
 
-	cmake   -DCMAKE_BUILD_TYPE=Release \
-		-DCMAKE_INSTALL_PREFIX=/usr \
-		-DCMAKE_INSTALL_LIBDIR=lib \
-		-DCMAKE_CXX_FLAGS_RELEASE="$CXXFLAGS -fPIC" \
-		-DCMAKE_C_FLAGS_RELEASE="$CFLAGS -fPIC" \
-		-DCMAKE_Fortran_FLAGS="$CFLAGS -fPIC" \
-		-DBUILD_SHARED_LIBS=on \
-		-DEXAMPLES=off \
-		-DMPI=off \
-		../$name-ng-$version
+  prt-get isinst openmpi && ARPACK_MPI="on" || ARPACK_MPI="off"
 
-	cmake --build .
-	make DESTDIR=$PKG install
+  cmake -DCMAKE_BUILD_TYPE=Release \
+	-DCMAKE_INSTALL_PREFIX=/usr \
+	-DCMAKE_INSTALL_LIBDIR=lib \
+	-DCMAKE_C_FLAGS_RELEASE="$CFLAGS -fPIC" \
+	-DCMAKE_Fortran_FLAGS="$CFLAGS -fPIC" \
+	-DBUILD_SHARED_LIBS=on \
+	-DEXAMPLES=off -DMPI=$ARPACK_MPI \
+	../$name-ng-$version
+
+  cmake --build .
+  make DESTDIR=$PKG install
 }