diff --git a/.github/workflows/matrix_build.yml b/.github/workflows/matrix_build.yml
index 3650e670..e29c3e1a 100644
--- a/.github/workflows/matrix_build.yml
+++ b/.github/workflows/matrix_build.yml
@@ -397,6 +397,8 @@ jobs:
             wget --retry-on-http-error=503 \
               https://github.com/${GITHUB_REPOSITORY}/releases/download/${TAG_NAME}/${TOOLNAME}.tgz
           fi
+          mkdir /tmp/extsdk
+          tar xvf ${TOOLNAME}.tgz --strip-components=1 -C /tmp/extsdk >/dev/null
 
           echo "BR2_TOOLCHAIN_EXTERNAL=y" >> $CONF_PATH
           echo "BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y" >> $CONF_PATH
@@ -422,6 +424,9 @@ jobs:
           case "$LIBC" in
             uclibc)
               PREFIX="${PREFIX}${LIBC}gnu${ABI}"
+              UCCFG=/tmp/extsdk/${PREFIX}/sysroot/usr/include/bits/uClibc_config.h
+              check_uclibc_feature() { grep -q "\#define ${1} 1" ${UCCFG} && echo y || echo n }
+              echo "BR2_ENABLE_LOCALE=$(check_uclibc_feature __UCLIBC_HAS_LOCALE__)" >> $CONF_PATH
             ;;
             musl)
               PREFIX="${PREFIX}${LIBC}${ABI}"
@@ -438,8 +443,6 @@ jobs:
           GCC_VER=$(echo $TOOLNAME | cut -d '-' -f 2)
           echo "BR2_TOOLCHAIN_EXTERNAL_GCC_${GCC_VER:3:1}=y" >> $CONF_PATH
           echo "BR2_ROOTFS_POST_BUILD_SCRIPT=\"\$(TOPDIR)/../scripts/executing_commands_for_${LIBC}.sh\"" >> $CONF_PATH
-          mkdir /tmp/extsdk
-          tar xvf ${TOOLNAME}.tgz --strip-components=1 -C /tmp/extsdk >/dev/null
 
           make BOARD=$BOARD all