[pushed] gdb: fix typos in configure

[Simon Marchi via Gdb-patches <gdb-patches@sourceware.org>]

The variable names used to restore CFLAGS and LDFLAGS here don't quite
match the names used above, resulting in losing the original CFLAGS and
LDFLAGS.  Fix that.

Change-Id: I9cc2c3b48b1dc30c31a7143563c893fd6f426a0a
---
 gdb/configure    | 8 ++++----
 gdb/configure.ac | 8 ++++----
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/gdb/configure b/gdb/configure
index 90c1e3d7948b..448167f3c6d9 100755
--- a/gdb/configure
+++ b/gdb/configure
@@ -12138,8 +12138,8 @@ ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
-      save_CFLAGS=$CFLAGS
-      save_LDFLAGS=$LDFLAGS
+      save_CFLAGS="$CFLAGS"
+      save_LDFLAGS="$LDFLAGS"
       CFLAGS="$CFLAGS $srchigh_pkg_cflags"
       LDFLAGS="$LDFLAGS $srchigh_pkg_libs"
       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -12163,8 +12163,8 @@ else
 fi
 rm -f core conftest.err conftest.$ac_objext \
     conftest$ac_exeext conftest.$ac_ext
-      CFLAGS="$SAVE_CFLAGS"
-      LDFLAGS="$SAVE_LDFLAGS"
+      CFLAGS="$save_CFLAGS"
+      LDFLAGS="$save_LDFLAGS"
       ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
diff --git a/gdb/configure.ac b/gdb/configure.ac
index 29c1c4589c95..ada937316d73 100644
--- a/gdb/configure.ac
+++ b/gdb/configure.ac
@@ -1265,8 +1265,8 @@ either use --disable-source-highlight or dnl
       # This situation can occur for instance when using a source highlight
       # library compiled with g++ 7.5.0 while building gdb with g++ 4.8.5.
       AC_LANG_PUSH(C++)
-      save_CFLAGS=$CFLAGS
-      save_LDFLAGS=$LDFLAGS
+      save_CFLAGS="$CFLAGS"
+      save_LDFLAGS="$LDFLAGS"
       CFLAGS="$CFLAGS $srchigh_pkg_cflags"
       LDFLAGS="$LDFLAGS $srchigh_pkg_libs"
       AC_LINK_IFELSE(
@@ -1278,8 +1278,8 @@ either use --disable-source-highlight or dnl
         [have_usable_source_highlight=yes],
         [have_usable_source_highlight=no]
       )
-      CFLAGS="$SAVE_CFLAGS"
-      LDFLAGS="$SAVE_LDFLAGS"
+      CFLAGS="$save_CFLAGS"
+      LDFLAGS="$save_LDFLAGS"
       AC_LANG_POP(C++)
 
       if test "${have_usable_source_highlight}" = "yes"; then
-- 
2.33.1