1 files changed, 1 insertions, 1 deletions
diff --git a/configure b/configure
index 250cb772..a2000b51 100755
--- a/configure
+++ b/configure
@@ -134,7 +134,7 @@ yacc_is_newer_bison=
 nm='$(cross)$(tool_prefix)nm'
 opt_flags='-O2 -fno-stack-protector'
 lang_flags='-ansi -D_XOPEN_SOURCE=700 -D_POSIX_C_SOURCE=200112 -D_GNU_SOURCE'
-diag_flags='-Wall -Werror=implicit-function-declaration -Werror=missing-prototypes -Werror=strict-prototypes'
+diag_flags='-Wall -Wextra -Werror=implicit-function-declaration -Werror=missing-prototypes -Werror=strict-prototypes'
 debug_flags=-g
 debug_only_flags=-DTXR_DEBUG
 debug_also=