Remove developer cflags.
diff --git a/Makefile.am b/Makefile.am
index 57efe79..3fa2d22 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -24,7 +24,7 @@
COMMON_CFLAGS=-Wall -Wformat -Wformat-security
# The next line is commented out by default in shipping libarchive releases.
# It is uncommented by default in trunk.
-DEV_CFLAGS=-Werror -Wextra -Wunused -Wshadow -Wmissing-prototypes -Wcast-qual
+# DEV_CFLAGS=-Werror -Wextra -Wunused -Wshadow -Wmissing-prototypes -Wcast-qual
AM_CFLAGS=$(COMMON_CFLAGS) $(DEV_CFLAGS)
PLATFORMCPPFLAGS = @PLATFORMCPPFLAGS@
AM_CPPFLAGS=$(PLATFORMCPPFLAGS)