Update install_ffmpeg.sh and fix cross-compilation (#3197)

.github/workflows/build.yaml

@@ -55,7 +55,7 @@ jobs:
           apt update
           apt install -yqq build-essential make software-properties-common
           add-apt-repository -y ppa:git-core/candidate
-          apt update && apt install -yqq git zip unzip zlib1g-dev zlib1g yasm
+          apt update && apt install -yqq git zip unzip zlib1g-dev zlib1g libzlcore-dev libz-mingw-w64-dev yasm
 
       - name: Check out code
         uses: actions/checkout@v4.1.7
@@ -100,7 +100,7 @@ jobs:
             && apt update \
             && apt -yqq install \
               nasm clang-14 clang-tools-14 lld-14 build-essential pkg-config autoconf git python3 \
-              gcc-mingw-w64 libgcc-9-dev-arm64-cross mingw-w64-tools gcc-mingw-w64-x86-64
+              gcc-mingw-w64 libgcc-9-dev-arm64-cross mingw-w64-tools gcc-mingw-w64-x86-64 mingw-w64-x86-64-dev
 
           update-alternatives --install /usr/bin/clang++ clang++ /usr/bin/clang++-14 30 \
             && update-alternatives --install /usr/bin/clang clang /usr/bin/clang-14 30 \

Makefile

@@ -90,6 +90,7 @@ ifeq ($(BUILDOS),linux)
 
 	ifeq ($(GOOS),windows)
 		cc = x86_64-w64-mingw32-gcc
+		cgo_ldflags += -L/usr/x86_64-w64-mingw32/lib -lz
 	endif
 endif
 

install_ffmpeg.sh

@@ -1,3 +1,3 @@
 #!/usr/bin/env bash
 echo 'WARNING: downloading and executing lpms/install_ffmpeg.sh, use it directly in case of issues'
-curl https://raw.githubusercontent.com/livepeer/lpms/d9c78b62effdb4f5c8fc438b6033da1090d04a03/install_ffmpeg.sh | bash -s $1
+curl https://raw.githubusercontent.com/livepeer/lpms/ffde2327537517b3345162e9544704571bc58a34/install_ffmpeg.sh | bash -s $1