From 11dbd625ab7829b4438c00210195548ce05898a7 Mon Sep 17 00:00:00 2001
From: itsmattkc <34096995+itsmattkc@users.noreply.github.com>
Date: Fri, 1 Oct 2021 16:37:42 -0700
Subject: [PATCH] cmake: add FindPortAudio script

PortAudio only added a config a few weeks ago which means most package managers don't have it. I don't know if there's a way to use the config without having our own find script, but we'll see.
---
 CMakeLists.txt            |  3 ++-
 cmake/FindPortAudio.cmake | 32 ++++++++++++++++++++++++++++++++
 2 files changed, 34 insertions(+), 1 deletion(-)
 create mode 100644 cmake/FindPortAudio.cmake

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2607c7bf1..b9ec14e58 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -122,7 +122,8 @@ list(APPEND OLIVE_LIBRARIES
 
 # Link PortAudio
 find_package(PortAudio REQUIRED)
-list(APPEND OLIVE_LIBRARIES PortAudio)
+list(APPEND OLIVE_INCLUDE_DIRS ${PORTAUDIO_INCLUDE_DIRS})
+list(APPEND OLIVE_LIBRARIES ${PORTAUDIO_LIBRARIES})
 
 # Optional: Link OpenTimelineIO
 find_package(OpenTimelineIO)
diff --git a/cmake/FindPortAudio.cmake b/cmake/FindPortAudio.cmake
new file mode 100644
index 000000000..fad2313df
--- /dev/null
+++ b/cmake/FindPortAudio.cmake
@@ -0,0 +1,32 @@
+# - Find PortAudio includes and libraries
+#
+#   PORTAUDIO_FOUND        - True if PORTAUDIO_INCLUDE_DIR & PORTAUDIO_LIBRARY
+#                            are found
+#   PORTAUDIO_LIBRARIES    - Set when PORTAUDIO_LIBRARY is found
+#   PORTAUDIO_INCLUDE_DIRS - Set when PORTAUDIO_INCLUDE_DIR is found
+#
+#   PORTAUDIO_INCLUDE_DIR - where to find portaudio.h, etc.
+#   PORTAUDIO_LIBRARY     - the portaudio library
+#
+
+find_path(PORTAUDIO_INCLUDE_DIR
+          NAMES portaudio.h
+          DOC "The PortAudio include directory"
+)
+
+find_library(PORTAUDIO_LIBRARY
+             NAMES portaudio
+             DOC "The PortAudio library"
+)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(PortAudio
+    REQUIRED_VARS PORTAUDIO_LIBRARY PORTAUDIO_INCLUDE_DIR
+)
+
+if(PORTAUDIO_FOUND)
+    set(PORTAUDIO_LIBRARIES ${PORTAUDIO_LIBRARY})
+    set(PORTAUDIO_INCLUDE_DIRS ${PORTAUDIO_INCLUDE_DIR})
+endif()
+
+mark_as_advanced(PORTAUDIO_INCLUDE_DIR PORTAUDIO_LIBRARY)