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-rw-r--r--configure2
1 files changed, 1 insertions, 1 deletions
diff --git a/configure b/configure
index 7b10f6e5..a7a427f6 100644
--- a/configure
+++ b/configure
@@ -7,7 +7,7 @@
# CFLAGS and OPTIMIZE are different so you can add extra CFLAGS without
# disabling default optimizations
-[ -z "$CFLAGS" ] && CFLAGS="-Wall -Wundef -Wno-char-subscripts"
+[ -z "$CFLAGS" ] && CFLAGS="-Wall -Wundef -Wno-char-subscripts -Werror=implicit-function-declaration"
# Required for our expected ABI. we're 8-bit clean thus "char" must be unsigned.
CFLAGS="$CFLAGS -funsigned-char"
[ -z "$OPTIMIZE" ] && OPTIMIZE="-Os -ffunction-sections -fdata-sections -fno-asynchronous-unwind-tables -fno-strict-aliasing"