From: Francois-Xavier Le Bail <devel.fx.lebail@orange.fr>
Date: Tue, 23 Aug 2016 14:04:57 +0000 (+0200)
Subject: Compile with '-Wassign-enum' in devel mode if supported
X-Git-Tag: tcpdump-4.99-bp~1830^2~1
X-Git-Url: https://git.tcpdump.org/tcpdump/commitdiff_plain/7871b86d086d7cd51f2301a5b46d4a6da0a3f218

Compile with '-Wassign-enum' in devel mode if supported
---

diff --git a/aclocal.m4 b/aclocal.m4
index a0031412..30d01f5f 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -996,6 +996,7 @@ AC_DEFUN(AC_LBL_DEVEL,
 		    AC_LBL_CHECK_COMPILER_OPT($1, -Wold-style-definition)
 		    AC_LBL_CHECK_COMPILER_OPT($1, -Wused-but-marked-unused)
 		    AC_LBL_CHECK_COMPILER_OPT($1, -W)
+		    AC_LBL_CHECK_COMPILER_OPT($1, -Wassign-enum)
 	    fi
 	    AC_LBL_CHECK_DEPENDENCY_GENERATION_OPT()
 	    #
diff --git a/configure b/configure
index 9a261d52..434c87cf 100755
--- a/configure
+++ b/configure
@@ -7232,6 +7232,49 @@ else
 $as_echo "no" >&6; }
 		CFLAGS="$save_CFLAGS"
 
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler supports the -Wassign-enum option" >&5
+$as_echo_n "checking whether the compiler supports the -Wassign-enum option... " >&6; }
+	save_CFLAGS="$CFLAGS"
+	if expr "x-Wassign-enum" : "x-W.*" >/dev/null
+	then
+	    CFLAGS="$CFLAGS $ac_lbl_unknown_warning_option_error -Wassign-enum"
+	elif expr "x-Wassign-enum" : "x-f.*" >/dev/null
+	then
+	    CFLAGS="$CFLAGS -Werror -Wassign-enum"
+	elif expr "x-Wassign-enum" : "x-m.*" >/dev/null
+	then
+	    CFLAGS="$CFLAGS -Werror -Wassign-enum"
+	else
+	    CFLAGS="$CFLAGS -Wassign-enum"
+	fi
+	cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+return 0
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+		CFLAGS="$save_CFLAGS"
+		V_CCOPT="$V_CCOPT -Wassign-enum"
+
+else
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+		CFLAGS="$save_CFLAGS"
+
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext