From 9fd6bae3c4dc7b96659ed2218bed450d54449435 Mon Sep 17 00:00:00 2001
From: Mauro Rossi <issor.oruam@gmail.com>
Date: Tue, 3 Jun 2025 19:16:06 +0200
Subject: [PATCH] llvmpipe: Use mkdir instead of
 std::filesystem::create_directory on Android

libc++fs symbols are not available to vendor modules up to Android 15
this patch allows to build llvmpipe as module for Android 14 and older

Backport-to: 25.1
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35208>
---
 src/gallium/auxiliary/gallivm/lp_bld_debug.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/gallium/auxiliary/gallivm/lp_bld_debug.cpp b/src/gallium/auxiliary/gallivm/lp_bld_debug.cpp
index a0e61f65e13..cc9de691b2d 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_debug.cpp
+++ b/src/gallium/auxiliary/gallivm/lp_bld_debug.cpp
@@ -43,6 +43,7 @@
 #include <llvm/Support/Host.h>
 #endif
 
+#include "util/detect_os.h"
 #include "util/u_math.h"
 #include "util/u_debug.h"
 
@@ -56,7 +57,9 @@
 
 #include <llvm/BinaryFormat/Dwarf.h>
 
+#if !DETECT_OS_ANDROID
 #include <filesystem>
+#endif
 
 /**
  * Check alignment.
@@ -376,7 +379,11 @@ lp_function_add_debug_info(gallivm_state *gallivm, LLVMValueRef func, LLVMTypeRe
    if (!gallivm->file) {
       uint32_t shader_index = p_atomic_add_return(&global_shader_index, 1);
 
+#if !DETECT_OS_ANDROID
       std::filesystem::create_directory(LP_NIR_SHADER_DUMP_DIR);
+#else
+      mkdir(LP_NIR_SHADER_DUMP_DIR, 0755);
+#endif
 
       asprintf(&gallivm->file_name, "%s/%u.nir", LP_NIR_SHADER_DUMP_DIR, shader_index);