kernel: Automatically detect kernel source

[ipfire-3.x.git] / kernel / scripts / configure

diff --git a/kernel/scripts/configure b/kernel/scripts/configure
index 11954c8f4a0b2043d097f4cf7d24f49704df8672..b339909b8789bb948a5552c6db87b4e039deedff 100755 (executable)
--- a/kernel/scripts/configure
+++ b/kernel/scripts/configure
@@ -22,6 +22,16 @@ SUBPLATFORMS=(
        [arm]="arm64 arm32"
 )
 
+search_kernel_dir() {
+       local dir
+       for dir in /builddir/source/linux-*; do
+               if [ -d "${dir}" ]; then
+                       echo "${dir}"
+                       break
+               fi
+       done
+}
+
 function get_platform() {
        local arch="${1}"
 
@@ -296,22 +306,17 @@ function diff_configs() {
        rm -rf ${tmpdir}
 }
 
-KERNEL_DIR=
+KERNEL_DIR="$(search_kernel_dir)"
 
 # Parse commandline.
 while [ $# -gt 0 ]; do
        arg=${1}; shift
        case "${arg}" in
-               --kernel-dir=*)
-                       KERNEL_DIR=${arg#--kernel-dir=}
-                       ;;
                help|"")
                        echo "${0} - available commands:"
                        echo "    * merge <arch> <flavour> <output filename>"
                        echo "    * update ..."
                        echo "    * oldconfig"
-                       echo ""
-                       echo "    You must always set --kernel-dir=..."
                        exit 0
                        ;;
                merge|oldconfig|update)
@@ -322,7 +327,7 @@ while [ $# -gt 0 ]; do
 done
 
 if [ -z "${KERNEL_DIR}" ]; then
-       echo >&2 "--kernel-dir=... was not set!"
+       echo >&2 "KERNEL_DIR was not set!"
        exit 2
 fi