Update package version to 3.9.0

source.sh

@@ -15,18 +15,15 @@ prepare() {
 # The build function is executed in the source directory
 # This function is used to compile the source code
 build() {
-  mkdir build
-  cd build
-
-  cmake -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_BUILD_TYPE=Release -DCFGDIR=/etc -DENABLE_LTO=ON ..
-  make
+  cmake -B build -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_BUILD_TYPE=Release -DCFGDIR=/etc -DENABLE_LTO=ON
+  cmake --build build
 }
 
 # The package function is executed in the source directory
 # This function is used to move the compiled files into the output directory
 package() {
-  cd build
-  make DESTDIR="$BPM_OUTPUT" install
+  DESTDIR="$BPM_OUTPUT" cmake --install build
 
+  # Install package license
   install -Dm644 "$BPM_SOURCE"/COPYING "$BPM_OUTPUT"/usr/share/licenses/icewm/COPYING
 }