From b54040d394830b847a7d64babac23f29fda8d47c Mon Sep 17 00:00:00 2001
From: Michael Dusan <michael.dusan@gmail.com>
Date: Thu, 23 Jan 2020 21:56:53 -0500
Subject: [PATCH] stage1: make sure to create native_libc.txt dir

- fix regression from #4186
---
 src/codegen.cpp |  5 ++++-
 src/main.cpp    | 10 +++++-----
 2 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/src/codegen.cpp b/src/codegen.cpp
index 3d4d2a8c3..7546025e7 100644
--- a/src/codegen.cpp
+++ b/src/codegen.cpp
@@ -8996,7 +8996,10 @@ static void detect_libc(CodeGen *g) {
                     "See `zig libc --help` for more details.\n", err_str(err));
                 exit(1);
             }
-            if ((err = os_make_path(g->cache_dir))) {
+            Buf libc_txt_dir = BUF_INIT;
+            os_path_dirname(libc_txt, &libc_txt_dir);
+            buf_deinit(&libc_txt_dir);
+            if ((err = os_make_path(&libc_txt_dir))) {
                 fprintf(stderr, "Unable to create %s directory: %s\n",
                     buf_ptr(g->cache_dir), err_str(err));
                 exit(1);
diff --git a/src/main.cpp b/src/main.cpp
index d89ac352a..fd50c1b14 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -141,15 +141,15 @@ static int print_libc_usage(const char *arg0, FILE *file, int return_code) {
         "You can save this into a file and then edit the paths to create a cross\n"
         "compilation libc kit. Then you can pass `--libc [file]` for Zig to use it.\n"
         "\n"
-        "When compiling natively and no `--libc` argument provided, Zig automatically\n"
-        "creates zig-cache/native_libc.txt so that it does not have to detect libc\n"
-        "on every invocation. You can remove this file to have Zig re-detect the\n"
-        "native libc.\n"
+        "When compiling natively and no `--libc` argument provided, Zig will create\n"
+        "`%s/native_libc.txt`\n"
+        "so that it does not have to detect libc on every invocation. You can remove\n"
+        "this file to have Zig re-detect the native libc.\n"
         "\n\n"
         "Usage: %s libc [file]\n"
         "\n"
         "Parse a libc installation text file and validate it.\n"
-    , arg0, arg0);
+    , arg0, buf_ptr(get_global_cache_dir()), arg0);
     return return_code;
 }