From 02445c8f320981829332ff52c920ed8966f87372 Mon Sep 17 00:00:00 2001
From: Prateek Sunal <prtksunal@gmail.com>
Date: Fri, 14 Jun 2024 19:19:15 +0530
Subject: [PATCH] fix: try to manually specify ffmpeg header in rust

---
 mac/Makefile.am     |  4 ++--
 src/rust/Cargo.lock |  1 +
 src/rust/Cargo.toml |  1 +
 src/rust/build.rs   | 10 ++++++++++
 4 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/mac/Makefile.am b/mac/Makefile.am
index d5e8938f5..a57ca8904 100644
--- a/mac/Makefile.am
+++ b/mac/Makefile.am
@@ -272,7 +272,7 @@ if HARDSUBX_IS_ENABLED
 ccextractor_CFLAGS += -DENABLE_HARDSUBX
 libavcodec_CFLAGS = $(shell pkg-config --cflags libavcodec)
 libavformat_CFLAGS = $(shell pkg-config --cflags libavformat)
-libavutil_CFALGS = $(shell pkg-config --cflags libavutil)
+libavutil_CFLAGS = $(shell pkg-config --cflags libavutil)
 libswscale_CFLAGS = $(shell pkg-config --cflags libswscale)
 libavcodec_LIBS = $(shell pkg-config --libs libavcodec)
 libavformat_LIBS = $(shell pkg-config --libs libavformat)
@@ -280,7 +280,7 @@ libavutil_LIBS = $(shell pkg-config --libs libavutil)
 libswscale_LIBS = $(shell pkg-config --libs libswscale)
 ccextractor_CPPFLAGS+= ${libavcodec_CFLAGS}
 ccextractor_CPPFLAGS+= ${libavformat_CFLAGS}
-ccextractor_CPPFLAGS+= ${libavutil_CFALGS}
+ccextractor_CPPFLAGS+= ${libavutil_CFLAGS}
 ccextractor_CPPFLAGS+= ${libswscale_CFLAGS}
 AV_LIB = ${libavcodec_LIBS}
 AV_LIB += ${libavformat_LIBS}
diff --git a/src/rust/Cargo.lock b/src/rust/Cargo.lock
index 1b692d5b4..0d5aff6dc 100644
--- a/src/rust/Cargo.lock
+++ b/src/rust/Cargo.lock
@@ -162,6 +162,7 @@ dependencies = [
  "log",
  "num-integer",
  "palette",
+ "pkg-config",
  "rsmpeg",
  "strum",
  "strum_macros",
diff --git a/src/rust/Cargo.toml b/src/rust/Cargo.toml
index 4c9bcad67..2f1a13189 100644
--- a/src/rust/Cargo.toml
+++ b/src/rust/Cargo.toml
@@ -29,6 +29,7 @@ num-integer = "0.1.45"
 
 [build-dependencies]
 bindgen = "0.64.0"
+pkg-config = "0.3.30"
 
 [features]
 hardsubx_ocr = ["rsmpeg", "tesseract-sys", "leptonica-sys"]
diff --git a/src/rust/build.rs b/src/rust/build.rs
index a099fd568..d262ce91b 100644
--- a/src/rust/build.rs
+++ b/src/rust/build.rs
@@ -1,3 +1,4 @@
+extern crate pkg_config;
 use std::env;
 use std::path::PathBuf;
 
@@ -44,9 +45,18 @@ fn main() {
     #[cfg(feature = "hardsubx_ocr")]
     allowlist_types.extend_from_slice(&["AVRational", "AVPacket", "AVFrame"]);
 
+    std::env::set_var("PKG_CONFIG_ALLOW_SYSTEM_CFLAGS", "1");
+    let library = pkg_config::probe_library("libavcodec").expect("Unable to probe `libavcodec`");
+
     let mut builder = bindgen::Builder::default()
         // The input header we would like to generate
         // bindings for.
+        .clang_args(
+            library
+                .include_paths
+                .iter()
+                .map(|path| format!("-I{}", path.to_string_lossy())),
+        )
         .header("wrapper.h");
 
     // enable hardsubx if and only if the feature is on