configure            |   15 ++++-----------
 m4/curl-compilers.m4 |   15 ++++-----------
 2 files changed, 8 insertions(+), 22 deletions(-)

diff --git a/configure b/configure
index d3ecf69..6d8f085 100755
--- a/configure
+++ b/configure
@@ -15006,18 +15006,11 @@ $as_echo "yes" >&6; }
     gccvhi=`echo $gccver | cut -d . -f1`
     gccvlo=`echo $gccver | cut -d . -f2`
     compiler_num=`(expr $gccvhi "*" 100 + $gccvlo) 2>/dev/null`
-    flags_dbg_all="-g -g0 -g1 -g2 -g3"
-    flags_dbg_all="$flags_dbg_all -ggdb"
-    flags_dbg_all="$flags_dbg_all -gstabs"
-    flags_dbg_all="$flags_dbg_all -gstabs+"
-    flags_dbg_all="$flags_dbg_all -gcoff"
-    flags_dbg_all="$flags_dbg_all -gxcoff"
-    flags_dbg_all="$flags_dbg_all -gdwarf-2"
-    flags_dbg_all="$flags_dbg_all -gvms"
+    flags_dbg_all=""
     flags_dbg_yes="-g"
-    flags_dbg_off="-g0"
-    flags_opt_all="-O -O0 -O1 -O2 -O3 -Os"
-    flags_opt_yes="-O2"
+    flags_dbg_off=""
+    flags_opt_all=""
+    flags_opt_yes=""
     flags_opt_off="-O0"
   else
     { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
diff --git a/m4/curl-compilers.m4 b/m4/curl-compilers.m4
index 1ea4d17..868d65a 100644
--- a/m4/curl-compilers.m4
+++ b/m4/curl-compilers.m4
@@ -148,18 +148,11 @@ AC_DEFUN([CURL_CHECK_COMPILER_GNU_C], [
     gccvhi=`echo $gccver | cut -d . -f1`
     gccvlo=`echo $gccver | cut -d . -f2`
     compiler_num=`(expr $gccvhi "*" 100 + $gccvlo) 2>/dev/null`
-    flags_dbg_all="-g -g0 -g1 -g2 -g3"
-    flags_dbg_all="$flags_dbg_all -ggdb"
-    flags_dbg_all="$flags_dbg_all -gstabs"
-    flags_dbg_all="$flags_dbg_all -gstabs+"
-    flags_dbg_all="$flags_dbg_all -gcoff"
-    flags_dbg_all="$flags_dbg_all -gxcoff"
-    flags_dbg_all="$flags_dbg_all -gdwarf-2"
-    flags_dbg_all="$flags_dbg_all -gvms"
+    flags_dbg_all=""
     flags_dbg_yes="-g"
-    flags_dbg_off="-g0"
-    flags_opt_all="-O -O0 -O1 -O2 -O3 -Os"
-    flags_opt_yes="-O2"
+    flags_dbg_off=""
+    flags_opt_all=""
+    flags_opt_yes=""
     flags_opt_off="-O0"
   else
     AC_MSG_RESULT([no])