alglib, cleanup (#8381)

sci-libs/alglib/alglib-3.16.0.recipe

@@ -13,7 +13,7 @@ solvers
 HOMEPAGE="https://www.alglib.net/"
 COPYRIGHT="1999-2019 Sergey Bochkanov"
 LICENSE="GNU GPL v2"
-REVISION="1"
+REVISION="2"
 SOURCE_URI="https://www.alglib.net/translator/re/alglib-$portVersion.cpp.gpl.tgz"
 CHECKSUM_SHA256="41fa15d25f7332f357ebecdec3e5370619361365b469b6c92401fec059b69867"
 SOURCE_DIR="cpp"
@@ -23,7 +23,7 @@ ARCHITECTURES="all !x86_gcc2"
 SECONDARY_ARCHITECTURES="x86"
 
 libVersion="$portVersion"
-libVersionCompat="$libVersion compat >= ${libVersion%%.*}"
+libVersionCompat="$libVersion compat >= ${libVersion%.*}"
 
 PROVIDES="
 	alglib$secondaryArchSuffix = $portVersion
@@ -66,24 +66,20 @@ BUILD()
 		-e "s|@SOVERSION@|$SOVERSION|" \
 		$portDir/additional-files/CMakeLists.txt.in > CMakeLists.txt
 
-	mkdir -p build && cd build
-
-	cmake .. \
+	cmake -Bbuild -S. -DCMAKE_BUILD_TYPE=Release \
 		-DBUILD_TEST=ON \
 		$cmakeDirArgs
-
-	make $jobArgs
+	make -C build $jobArgs
 }
 
 INSTALL()
 {
-	cd build
-	make install
+	make -C build install
 
 	install -m 0755 -d "$developDocDir"
-	install -m 0644 -t "$developDocDir" ../manual.cpp.html
+	install -m 0644 -t "$developDocDir" manual.cpp.html
 
-	prepareInstalledDevelLibs libalglib
+	prepareInstalledDevelLib libalglib
 
 	packageEntries devel \
 		$developDir
@@ -91,6 +87,5 @@ INSTALL()
 
 TEST()
 {
-	cd build
-	make test
+	make -C build test
 }