Fix creation of source packages

Source packages were getting created with only links to local source
files.  Caused by commit 5cddcc90.

Also, fix dangling symlinks to install and changelog files. Caused
by commit fe1e3471.

Thanks to Christopher Rogers <slaxemulator@gmail.com> for pointing
out areas that were failing.

Signed-off-by: Allan McRae <allan@archlinux.org>

scripts/makepkg.sh.in

@@ -1096,7 +1096,7 @@ create_srcpackage() {
 	for file in "${source[@]}"; do
 		if [[ -f $file ]]; then
 			msg2 "$(gettext "Adding %s...")" "$file"
-			ln -s "$file" "$srclinks/$pkgbase"
+			ln -s "${startdir}/$file" "$srclinks/$pkgbase"
 		elif (( SOURCEONLY == 2 )); then
 			local absfile=$(get_filepath "$file") || missing_source_file "$file"
 			msg2 "$(gettext "Adding %s...")" "${absfile##*/}"
@@ -1110,9 +1110,9 @@ create_srcpackage() {
 		local file
 		for file in ${!i}; do
 			# evaluate any bash variables used
-			eval file='${srclinks}/${pkgbase}/'${file}
-			if [[ ! -f $file ]]; then
-				msg2 "$(gettext "Adding %s file (%s)...")" "$i" "${file##*/}"
+			eval file=${file}
+			if [[ ! -f "${srclinks}/${pkgbase}/$file" ]]; then
+				msg2 "$(gettext "Adding %s file (%s)...")" "$i" "${file}"
 				ln -s "${startdir}/$file" "${srclinks}/${pkgbase}/"
 			fi
 		done