improve configure

configure

@@ -317,13 +317,31 @@ _os_iorunv() {
 }
 
 # find file in the given directory
-# e.g. _os_find . xmake.sh
+# e.g. _os_find . xmake.sh [depth]
 _os_find() {
     local dir="${1}"
     local name="${2}"
     local depth="${3}"
     if test_nz "${depth}"; then
-        _ret=$(find "${dir}" -maxdepth "${depth}" -mindepth "${depth}" -type f -name "${name}" | LC_ALL=C sort)
+        # Solaris doesn't support -maxdepth, use shell to filter depth
+        if is_host "solaris"; then
+            _ret=""
+            local file=""
+            for file in $(find "${dir}" -type f -name "${name}" | LC_ALL=C sort); do
+                local relpath="${file#${dir}/}"
+                local slash_count=$(echo "${relpath}" | tr -cd '/' | wc -c | tr -d ' ')
+                if test "${slash_count}" = "$((${depth} - 1))"; then
+                    if test -z "${_ret}"; then
+                        _ret="${file}"
+                    else
+                        _ret="${_ret}
+${file}"
+                    fi
+                fi
+            done
+        else
+            _ret=$(find "${dir}" -maxdepth "${depth}" -mindepth "${depth}" -type f -name "${name}" | LC_ALL=C sort)
+        fi
     else
         _ret=$(find "${dir}" -type f -name "${name}" | LC_ALL=C sort)
     fi
@@ -2800,7 +2818,8 @@ _load_options_and_toolchains() {
         includes "${file}"
     else
         # include all xmake.sh files in next sub-directories
-        local files=`find ${xmake_sh_projectdir} -maxdepth 2 -mindepth 2 -name "xmake.sh"`
+        _os_find "${xmake_sh_projectdir}" "xmake.sh" "2"
+        local files="${_ret}"
         for file in ${files}; do
             includes "${file}"
         done