From cbd60a408d559772c4c6dc43d9c4aeb83ce78af9 Mon Sep 17 00:00:00 2001
From: Kevin Lago <kevinthelago@gmail.com>
Date: Sat, 25 Apr 2026 12:50:29 -0400
Subject: [PATCH] =?UTF-8?q?fix:=20Windows=20build=20failures=20in=20Androi?=
 =?UTF-8?q?d=20=E2=80=94=20bash=20path=20and=20CMake/Ninja=20absolute=20pa?=
 =?UTF-8?q?th=20issue?=
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On Windows, two problems block the Android build:

1. Gradle's downloadPrebuiltBinaries task calls 'bash' which resolves
   to the WSL relay (C:\Windows\System32\bash.exe). If WSL has no
   distro installed, this fails with:
     execvpe(/bin/bash) failed: No such file or directory
   Fix: detect Windows via Os.isFamily(Os.FAMILY_WINDOWS) and use
   Git Bash (C:\Program Files\Git\usr\bin\bash.exe) instead.

2. CMake/Ninja generates object file paths from absolute source file
   paths. On Windows, Ninja converts the drive letter colon (C:) to
   an underscore (C_), producing a path like:
     CMakeFiles/react-native-audio-api.dir/C_/Users/.../audioapi
   which it cannot mkdir, failing with:
     ninja: error: mkdir(...C_/Users/...): No such file or directory
   Fix: convert absolute glob results to relative paths via
   file(RELATIVE_PATH) before passing them to add_library, so Ninja
   creates simple relative object directories with no drive letter.

Fixes #784 (Ninja mkdir error on Windows)
Fixes #1012 (bash not found on Windows)
---
 .../android/build.gradle                      | 11 ++++++++---
 .../src/main/cpp/audioapi/CMakeLists.txt      | 19 ++++++++++++++++---
 2 files changed, 24 insertions(+), 6 deletions(-)

diff --git a/packages/react-native-audio-api/android/build.gradle b/packages/react-native-audio-api/android/build.gradle
index e2b8442a8..b46b11c9e 100644
--- a/packages/react-native-audio-api/android/build.gradle
+++ b/packages/react-native-audio-api/android/build.gradle
@@ -308,9 +308,14 @@ def assertMinimalReactNativeVersion = task assertMinimalReactNativeVersionTask {
 }
 
 task downloadPrebuiltBinaries(type: Exec) {
-  commandLine 'chmod', '+x', '../scripts/download-prebuilt-binaries.sh'
-  commandLine 'bash', '../scripts/download-prebuilt-binaries.sh'
-  args 'android', isFFmpegDisabled() ? 'skipffmpeg' : ''
+  def isWindows = Os.isFamily(Os.FAMILY_WINDOWS)
+  if (isWindows) {
+    commandLine 'C:\\Program Files\\Git\\usr\\bin\\bash.exe', '../scripts/download-prebuilt-binaries.sh', 'android', isFFmpegDisabled() ? 'skipffmpeg' : ''
+  } else {
+    commandLine 'chmod', '+x', '../scripts/download-prebuilt-binaries.sh'
+    commandLine 'bash', '../scripts/download-prebuilt-binaries.sh'
+    args 'android', isFFmpegDisabled() ? 'skipffmpeg' : ''
+  }
 }
 
 // Make preBuild depend on the download task
diff --git a/packages/react-native-audio-api/android/src/main/cpp/audioapi/CMakeLists.txt b/packages/react-native-audio-api/android/src/main/cpp/audioapi/CMakeLists.txt
index b96e3f282..f533ea1be 100644
--- a/packages/react-native-audio-api/android/src/main/cpp/audioapi/CMakeLists.txt
+++ b/packages/react-native-audio-api/android/src/main/cpp/audioapi/CMakeLists.txt
@@ -1,8 +1,21 @@
 cmake_minimum_required(VERSION 3.12.0)
 
-file(GLOB_RECURSE ANDROID_CPP_SOURCES CONFIGURE_DEPENDS "${ANDROID_CPP_DIR}/audioapi/*.cpp")
-file(GLOB_RECURSE COMMON_CPP_SOURCES CONFIGURE_DEPENDS "${COMMON_CPP_DIR}/audioapi/*.cpp" "${COMMON_CPP_DIR}/audioapi/*.c")
-file(GLOB_RECURSE DSP_CPP_SOURCES CONFIGURE_DEPENDS "${COMMON_CPP_DIR}/audioapi/dsp/*.cpp")
+file(GLOB_RECURSE ANDROID_CPP_SOURCES_ABS CONFIGURE_DEPENDS "${ANDROID_CPP_DIR}/audioapi/*.cpp")
+file(GLOB_RECURSE COMMON_CPP_SOURCES_ABS CONFIGURE_DEPENDS "${COMMON_CPP_DIR}/audioapi/*.cpp" "${COMMON_CPP_DIR}/audioapi/*.c")
+file(GLOB_RECURSE DSP_CPP_SOURCES_ABS CONFIGURE_DEPENDS "${COMMON_CPP_DIR}/audioapi/dsp/*.cpp")
+
+foreach(src IN LISTS ANDROID_CPP_SOURCES_ABS)
+  file(RELATIVE_PATH rel_src "${CMAKE_CURRENT_SOURCE_DIR}" "${src}")
+  list(APPEND ANDROID_CPP_SOURCES "${rel_src}")
+endforeach()
+foreach(src IN LISTS COMMON_CPP_SOURCES_ABS)
+  file(RELATIVE_PATH rel_src "${CMAKE_CURRENT_SOURCE_DIR}" "${src}")
+  list(APPEND COMMON_CPP_SOURCES "${rel_src}")
+endforeach()
+foreach(src IN LISTS DSP_CPP_SOURCES_ABS)
+  file(RELATIVE_PATH rel_src "${CMAKE_CURRENT_SOURCE_DIR}" "${src}")
+  list(APPEND DSP_CPP_SOURCES "${rel_src}")
+endforeach()
 
 if (RN_AUDIO_API_FFMPEG_DISABLED)
   list(REMOVE_ITEM COMMON_CPP_SOURCES