Coin, FFmpeg: Fool-proof fix_ffmpeg_dependencies.sh

This script has previously failed under some configurations, while
also failing to stop provisioning.

This patch enables fast-fail behavior, catches potential issues with
missing executables early with a descriptive error message. This
should allow us to detect if the required packages are missing
in the future, and stop provisioning accordingly.

This patch also installs the necessary packages on the relevant
CI build targets.

Task-number: QTBUG-136930
Pick-to: 6.9 6.8
Change-Id: I7c781264ad67508d19fd44556a9caf0f201638d4
Reviewed-by: Assam Boudjelthia <assam.boudjelthia@qt.io>
(cherry picked from commit 0706273c76)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

coin/provisioning/common/shared/fix_ffmpeg_dependencies.sh

@@ -2,16 +2,33 @@
 # Copyright (C) 2024 The Qt Company Ltd.
 # SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
-set -x
+set -euox pipefail
 
 lib_dir="$1/lib"
 additional_suffix="${2:-}"
 set_rpath="${3:-yes}"
 
+# readelf and patchelf are prerequisite tools for this script. Check
+# that they are available.
 if [ "$(uname -s)" = "Darwin" ]; then
     # Under Homebrew, binutils package is not symlinked into PATH.
     # This lets us use readelf provided by Homebrew.
-    readelf() { "$(brew --prefix binutils)/bin/readelf" "$@"; }
+    readelf_homebrew_path="$(brew --prefix binutils)/bin/readelf"
+    if [[ ! -x "$readelf_homebrew_path" ]]; then
+        echo "Found no valid readelf executable. It is possible it was not correctly installed through Homebrew."
+        exit 1
+    fi
+    readelf() { "$readelf_homebrew_path" "$@"; }
+fi
+
+if ! command -v readelf; then
+    echo "Found no valid readelf command. It is possible it was not correctly installed."
+    exit 1
+fi
+
+if ! command -v patchelf; then
+    echo "Found no valid patchelf command. It is possible it was not correctly installed."
+    exit 1
 fi
 
 ffmpeg_libs=("avcodec" "avdevice" "avfilter" "avformat" "avutil" "swresample" "swscale")

coin/provisioning/qtci-macos-14-arm/27-binutils.sh

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+#Copyright (C) 2025 The Qt Company Ltd
+#SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+set -ex
+
+# binutils is installed with an error: The formula built, but is not symlinked into /usr/local
+# To avoid stopping the configuration due to this problem, "|| true" is added.
+brew install binutils || true

coin/provisioning/qtci-macos-14-arm/28-patchelf.sh

@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+#Copyright (C) 2025 The Qt Company Ltd
+#SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+set -ex
+
+brew install patchelf

coin/provisioning/qtci-macos-14-x86_64/27-binutils.sh

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+#Copyright (C) 2025 The Qt Company Ltd
+#SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+set -ex
+
+# binutils is installed with an error: The formula built, but is not symlinked into /usr/local
+# To avoid stopping the configuration due to this problem, "|| true" is added.
+brew install binutils || true

coin/provisioning/qtci-macos-15-x86_64/27-binutils.sh

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+#Copyright (C) 2025 The Qt Company Ltd
+#SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+set -ex
+
+# binutils is installed with an error: The formula built, but is not symlinked into /usr/local
+# To avoid stopping the configuration due to this problem, "|| true" is added.
+brew install binutils || true