bzip2: compile at separate directory

system/extra/bzip2/ympbuild

@@ -13,25 +13,25 @@ group=(system.extra)
 cd $name-$version
 
 setup(){
-    true
+    mkdir -p $name-shared
+    cp *.c *.h $name-shared
+    cp Makefile-libbz2_so $name-shared/Makefile
 }
 build(){
     export CFLAGS="-Winline -D_FILE_OFFSET_BITS=64 ${CFLAGS}"
-    make -e -j`nproc` bzip2 bzip2recover libbz2.a
-
-    make -f Makefile-libbz2_so clean
-    make -j`nproc` -f Makefile-libbz2_so all CFLAGS="-fpic -fPIC ${CFLAGS}"
+    make -e -j$(nproc) bzip2recover libbz2.a
+    make -j$(nproc) -C $name-shared CFLAGS="-fpic -fPIC ${CFLAGS}"
 }
 package(){
     install -dm755 ${DESTDIR}/usr/{bin,lib64,include,share/man/man1}
 
-    install -m755 bzip2 "${DESTDIR}"/usr/bin/bzip2
+    install -m755 $name-shared/bzip2-shared "${DESTDIR}"/usr/bin/bzip2
     install -m755 bzip2recover bzdiff bzgrep bzmore "${DESTDIR}"/usr/bin
     ln -sf bzip2 "${DESTDIR}"/usr/bin/bunzip2
     ln -sf bzip2 "${DESTDIR}"/usr/bin/bzcat
 
     cp -a libbz2.a "${DESTDIR}"/usr/lib64/
-    cp -a libbz2.so* "${DESTDIR}"/usr/lib64
+    cp -a $name-shared/libbz2.so* "${DESTDIR}"/usr/lib64
     ln -s libbz2.so.$version "${DESTDIR}"/usr/lib64/libbz2.so
     ln -s libbz2.so.$version "${DESTDIR}"/usr/lib64/libbz2.so.1