$gdb_version is now used in more than one conditional case and its usage
in such cases may increase in the future. Therefore, avoid using shell
parameter expansion when using it by setting gdb_version to its final
form.

Signed-off-by: Gustavo Romero <gustavo.romero@linaro.org>
---
 configure | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/configure b/configure
index a3aa257fd3..97de85d710 100755
--- a/configure
+++ b/configure
@@ -1103,8 +1103,10 @@ fi
 # gdb test
 
 if test -n "$gdb_bin"; then
-    gdb_version=$($gdb_bin --version | head -n 1)
-    if version_ge ${gdb_version##* } 9.1; then
+    gdb_version_string=$($gdb_bin --version | head -n 1)
+    # Extract last field in the version string
+    gdb_version=${gdb_version_string##* }
+    if version_ge $gdb_version 9.1; then
         gdb_arches=$($python "$source_path/scripts/probe-gdb-support.py" $gdb_bin)
     else
         gdb_bin=""
@@ -1673,7 +1675,7 @@ for target in $target_list; do
           echo "GDB=$gdb_bin" >> $config_target_mak
       fi
 
-      if test "${gdb_arches#*aarch64}" != "$gdb_arches" && version_ge ${gdb_version##* } 15.0; then
+      if test "${gdb_arches#*aarch64}" != "$gdb_arches" && version_ge $gdb_version 15.0; then
           echo "GDB_HAS_MTE=y" >> $config_target_mak
       fi
 
-- 
2.34.1