From eaccfffe56655ab11a382685886492e5b9b0865c Mon Sep 17 00:00:00 2001
From: Vexu <git@vexu.eu>
Date: Fri, 6 Mar 2020 00:04:24 +0200
Subject: [PATCH] translate-c: default initialize non-extern variables to
 undefined

---
 src-self-hosted/translate_c.zig | 3 ++-
 test/translate_c.zig            | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/src-self-hosted/translate_c.zig b/src-self-hosted/translate_c.zig
index 0fc2feba7..25cbea1cc 100644
--- a/src-self-hosted/translate_c.zig
+++ b/src-self-hosted/translate_c.zig
@@ -609,7 +609,8 @@ fn visitVarDecl(c: *Context, var_decl: *const ZigClangVarDecl) Error!void {
         else
             try transCreateNodeUndefinedLiteral(c);
     } else if (storage_class != .Extern) {
-        return failDecl(c, var_decl_loc, checked_name, "non-extern variable has no initializer", .{});
+        eq_tok = try appendToken(c, .Equal, "=");
+        init_node = try transCreateNodeTypeIdentifier(c, "undefined");
     }
 
     const linksection_expr = blk: {
diff --git a/test/translate_c.zig b/test/translate_c.zig
index 3e7d15a23..29a65c862 100644
--- a/test/translate_c.zig
+++ b/test/translate_c.zig
@@ -337,10 +337,11 @@ pub fn addCases(cases: *tests.TranslateCContext) void {
     cases.add("variables",
         \\extern int extern_var;
         \\static const int int_var = 13;
+        \\int foo;
     , &[_][]const u8{
         \\pub extern var extern_var: c_int;
-    ,
         \\pub const int_var: c_int = 13;
+        \\pub export var foo: c_int = undefined;
     });
 
     cases.add("const ptr initializer",