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Commit 6019ff53 authored by Alessandro Rubini's avatar Alessandro Rubini
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build: add undocumented WRS_NO_REPLACE_BUILDROOT 

This variable, if not empty, allows to rebuild buildroot
in the previous build place, thus avoiding most build time.
This is useful for me when I just add packages and don't need
to recreate the compiler from scratch.

Well, so it is documented in the commit message.
Signed-off-by: Alessandro Rubini's avatarAlessandro Rubini <rubini@gnudd.com>
parent 733a850e
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Showing with 22 additions and 12 deletions
build/scripts/wrs_build_buildroot
View file @ 6019ff53
......@@ -20,9 +20,17 @@ mkdir -p $WRS_OUTPUT_DIR/images || wrs_die "mkdir images"
# go to the build dir and compile it, using our configuration
cd $WRS_OUTPUT_DIR/build
dirname="buildroot-2011.11"
wrs_echo "Uncompressing buildroot"
rm -rf $dirname
tar xjf ${WRS_DOWNLOAD_DIR}/$zipname || wrs_die "untar $zipname"
if [ ! -d $dirname ]; then
unset WRS_NO_REPLACE_BUILDROOT
fi
if [ -n "$WRS_NO_REPLACE_BUILDROOT" ]; then
wrs_echo "Preserving current buildroot build"
else
wrs_echo "Uncompressing buildroot"
rm -rf $dirname
tar xjf ${WRS_DOWNLOAD_DIR}/$zipname || wrs_die "untar $zipname"
fi
# select configuration: old default, overridden by Kconfig and environment
CFG_DEFAULT="$WRS_BASE_DIR/../configs/buildroot/wrs_release_br2_config"
......@@ -62,15 +70,17 @@ else
echo "BR2_JLEVEL=$WRS_MAKE_J_NUMBER" >> .config
fi
# apply any pending patches
wrs_echo "Patching buildroot"
cd $WRS_OUTPUT_DIR/build/${dirname}
for n in $WRS_BASE_DIR/../patches/buildroot/*patch; do
# the shell passes the "*" over if no matches are there, so check
if test -f "$n"; then
patch -p1 < $n || wrs_die "Apply $n"
fi
done
# apply any pending patches (only if we untarred a fresh copy)
if [ -z "$WRS_NO_REPLACE_BUILDROOT" ]; then
wrs_echo "Patching buildroot"
cd $WRS_OUTPUT_DIR/build/${dirname}
for n in $WRS_BASE_DIR/../patches/buildroot/*patch; do
# the shell passes the "*" over if no matches are there, so check
if test -f "$n"; then
patch -p1 < $n || wrs_die "Apply $n"
fi
done
fi
# now, if CROSS_COMPILE is already set and is not ours, change the config
if [ "x$CROSS_COMPILE" != "x" ]; then
......
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