build: don't wipe devel files from packages, just don't install them

With the upcoming usage of the standard install_pkg folder for addon
dependencies, the devel files need to be accessible, e.g. ffmpegx for
tvheadend.

So don't wipe them from the package install folder, just skip copying
them to the image.

scripts/build

@@ -445,24 +445,17 @@ export SYSROOT_PREFIX="${PKG_ORIG_SYSROOT_PREFIX}"
 
 if [ "${TARGET}" = "target" -o "${TARGET}" = "init" ]; then
   if [ -d ${INSTALL} ]; then
-    rm -rf ${INSTALL}/{usr/,}include
-    rm -rf ${INSTALL}/{usr/,}lib/cmake
-    rm -rf ${INSTALL}/{usr/,}lib/pkgconfig
     rm -rf ${INSTALL}/{usr/,}man
-    rm -rf ${INSTALL}/{usr/,}share/aclocal
     rm -rf ${INSTALL}/{usr/,}share/bash-completion
     rm -rf ${INSTALL}/{usr/,}share/doc
     rm -rf ${INSTALL}/{usr/,}share/gtk-doc
     rm -rf ${INSTALL}/{usr/,}share/info
     rm -rf ${INSTALL}/{usr/,}share/locale
     rm -rf ${INSTALL}/{usr/,}share/man
-    rm -rf ${INSTALL}/{usr/,}share/pkgconfig
     rm -rf ${INSTALL}/{usr/,}share/zsh
     rm -rf ${INSTALL}/{usr/,}var
     find ${INSTALL} \( -name "*.orig" \
                   -o -name "*.rej" \
-                  -o -name "*.a" \
-                  -o -name "*.la" \
                   -o -name "*.o" \
                   -o -name "*.in" \
                   -o -name ".git*" \) \

scripts/install

@@ -138,7 +138,22 @@ if [ "${TARGET}" = "target" ] ; then
 fi
 
 if [ -n "${PKG_INSTALL}" -a -d "${PKG_INSTALL}" ]; then
-  cp -PR ${PKG_INSTALL}/* ${INSTALL}
+  tar \
+    -C "${PKG_INSTALL}" \
+    --exclude=./usr/include \
+    --exclude=./usr/lib/cmake \
+    --exclude=./usr/lib/pkgconfig \
+    --exclude=./usr/share/aclocal \
+    --exclude=./usr/share/pkgconfig \
+    --exclude=./include \
+    --exclude=./lib/cmake \
+    --exclude=./lib/pkgconfig \
+    --exclude=./share/aclocal \
+    --exclude=./share/pkgconfig \
+    --exclude=./.* \
+    --exclude='*.a' \
+    --exclude='*.la' \
+    -cf - . | tar -C "${INSTALL}" -xf -
 fi
 
 if [ "${TARGET}" = "target" ] ; then