From d9fe38789b2a4e8376b71d839181d9c28d098164 Mon Sep 17 00:00:00 2001
From: Andrew Kelley <superjoe30@gmail.com>
Date: Tue, 6 Nov 2018 17:21:47 -0500
Subject: [PATCH] macos: use the same code as linux to determine libc include
 path

this fixes .h file locating on macos 10.14
---
 src/analyze.cpp | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/src/analyze.cpp b/src/analyze.cpp
index ac7f589d5..33958c090 100644
--- a/src/analyze.cpp
+++ b/src/analyze.cpp
@@ -4488,7 +4488,7 @@ static ZigWindowsSDK *get_windows_sdk(CodeGen *g) {
 }
 
 
-Buf *get_linux_libc_lib_path(const char *o_file) {
+static Buf *get_linux_libc_lib_path(const char *o_file) {
     const char *cc_exe = getenv("CC");
     cc_exe = (cc_exe == nullptr) ? "cc" : cc_exe;
     ZigList<const char *> args = {};
@@ -4514,7 +4514,7 @@ Buf *get_linux_libc_lib_path(const char *o_file) {
     return result;
 }
 
-Buf *get_linux_libc_include_path(void) {
+static Buf *get_posix_libc_include_path(void) {
     const char *cc_exe = getenv("CC");
     cc_exe = (cc_exe == nullptr) ? "cc" : cc_exe;
     ZigList<const char *> args = {};
@@ -4569,6 +4569,10 @@ Buf *get_linux_libc_include_path(void) {
 
 void find_libc_include_path(CodeGen *g) {
     if (g->libc_include_dir == nullptr) {
+        if (!g->is_native_target) {
+            fprintf(stderr, "Unable to determine libc include path. --libc-include-dir");
+            exit(1);
+        }
 
         if (g->zig_target.os == OsWindows) {
             ZigWindowsSDK *sdk = get_windows_sdk(g);
@@ -4577,13 +4581,13 @@ void find_libc_include_path(CodeGen *g) {
                 fprintf(stderr, "Unable to determine libc include path. --libc-include-dir");
                 exit(1);
             }
-        } else if (g->zig_target.os == OsLinux) {
-            g->libc_include_dir = get_linux_libc_include_path();
-        } else if (g->zig_target.os == OsMacOSX) {
-            g->libc_include_dir = buf_create_from_str("/usr/include");
+        } else if (g->zig_target.os == OsLinux || g->zig_target.os == OsMacOSX) {
+            g->libc_include_dir = get_posix_libc_include_path();
         } else {
-            // TODO find libc at runtime for other operating systems
-            zig_panic("Unable to determine libc include path.");
+            fprintf(stderr, "Unable to determine libc include path.\n"
+                    "TODO: implement finding libc at runtime for other operating systems.\n"
+                    "in the meantime, you can use as a workaround: --libc-include-dir\n");
+            exit(1);
         }
     }
     assert(buf_len(g->libc_include_dir) != 0);