diff --git a/libbacktrace/Makefile.in b/libbacktrace/Makefile.in
index 08cdd21fb4001773515b96b08c9003c031781847..8898251161def2e70eec0aef0a63b4195e5f332f 100644
--- a/libbacktrace/Makefile.in
+++ b/libbacktrace/Makefile.in
@@ -15,7 +15,7 @@
 @SET_MAKE@
 
 # Makefile.am -- Backtrace Makefile.
-# Copyright (C) 2012-2021 Free Software Foundation, Inc.
+# Copyright (C) 2012-2022 Free Software Foundation, Inc.
 
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
diff --git a/libbacktrace/configure b/libbacktrace/configure
index 17f470a4becb918ca13ef136dde401806ae9fcea..537486d34f24b4d01a35f4993b32878901aa2d11 100755
--- a/libbacktrace/configure
+++ b/libbacktrace/configure
@@ -13831,7 +13831,7 @@ else
   libbacktrace_cv_objcopy_debuglink=no
 elif ! test -n "${OBJCOPY}"; then
   libbacktrace_cv_objcopy_debuglink=no
-elif ${OBJCOPY} --help | fgrep add-gnu-debuglink >/dev/null 2>&1; then
+elif ${OBJCOPY} --help | grep add-gnu-debuglink >/dev/null 2>&1; then
   libbacktrace_cv_objcopy_debuglink=yes
 else
   libbacktrace_cv_objcopy_debuglink=no
diff --git a/libbacktrace/configure.ac b/libbacktrace/configure.ac
index 597c9705db8098c54e15b9c37bf8d9feec3a0c18..857987a285971fb5c182a7008ab6da5d22866eca 100644
--- a/libbacktrace/configure.ac
+++ b/libbacktrace/configure.ac
@@ -500,7 +500,7 @@ AC_CACHE_CHECK([whether objcopy supports debuglink],
   libbacktrace_cv_objcopy_debuglink=no
 elif ! test -n "${OBJCOPY}"; then
   libbacktrace_cv_objcopy_debuglink=no
-elif ${OBJCOPY} --help | fgrep add-gnu-debuglink >/dev/null 2>&1; then
+elif ${OBJCOPY} --help | grep add-gnu-debuglink >/dev/null 2>&1; then
   libbacktrace_cv_objcopy_debuglink=yes
 else
   libbacktrace_cv_objcopy_debuglink=no