From 39e84f839a2db30be492b51310dfdc1641985cbb Mon Sep 17 00:00:00 2001
From: Romain Vimont <rom@rom1v.com>
Date: Thu, 12 Feb 2026 20:40:32 +0100
Subject: [PATCH] Prevent build from falling back to system libs

Ensure that if a file or function is not found, the build does not
attempt to use system libraries. Falling back could introduce
incompatible versions or libraries compiles with different features.
---
 release/build_linux.sh   | 5 ++++-
 release/build_macos.sh   | 5 ++++-
 release/build_windows.sh | 5 ++++-
 3 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/release/build_linux.sh b/release/build_linux.sh
index 6bca6979..e83d355e 100755
--- a/release/build_linux.sh
+++ b/release/build_linux.sh
@@ -22,9 +22,12 @@ app/deps/libusb.sh linux native static
 DEPS_INSTALL_DIR="$PWD/app/deps/work/install/linux-native-static"
 ADB_INSTALL_DIR="$PWD/app/deps/work/install/adb-linux"
 
+# Never fall back to system libs
+unset PKG_CONFIG_PATH
+export PKG_CONFIG_LIBDIR="$DEPS_INSTALL_DIR/lib/pkgconfig"
+
 rm -rf "$LINUX_BUILD_DIR"
 meson setup "$LINUX_BUILD_DIR" \
-    --pkg-config-path="$DEPS_INSTALL_DIR/lib/pkgconfig" \
     -Dc_args="-I$DEPS_INSTALL_DIR/include" \
     -Dc_link_args="-L$DEPS_INSTALL_DIR/lib" \
     --buildtype=release \
diff --git a/release/build_macos.sh b/release/build_macos.sh
index 8f4beb9b..d6f1a56a 100755
--- a/release/build_macos.sh
+++ b/release/build_macos.sh
@@ -22,9 +22,12 @@ app/deps/libusb.sh macos native static
 DEPS_INSTALL_DIR="$PWD/app/deps/work/install/macos-native-static"
 ADB_INSTALL_DIR="$PWD/app/deps/work/install/adb-macos"
 
+# Never fall back to system libs
+unset PKG_CONFIG_PATH
+export PKG_CONFIG_LIBDIR="$DEPS_INSTALL_DIR/lib/pkgconfig"
+
 rm -rf "$MACOS_BUILD_DIR"
 meson setup "$MACOS_BUILD_DIR" \
-    --pkg-config-path="$DEPS_INSTALL_DIR/lib/pkgconfig" \
     -Dc_args="-I$DEPS_INSTALL_DIR/include" \
     -Dc_link_args="-L$DEPS_INSTALL_DIR/lib" \
     --buildtype=release \
diff --git a/release/build_windows.sh b/release/build_windows.sh
index c83d2e31..81f5aaf8 100755
--- a/release/build_windows.sh
+++ b/release/build_windows.sh
@@ -29,9 +29,12 @@ app/deps/libusb.sh $WINXX cross shared
 DEPS_INSTALL_DIR="$PWD/app/deps/work/install/$WINXX-cross-shared"
 ADB_INSTALL_DIR="$PWD/app/deps/work/install/adb-windows"
 
+# Never fall back to system libs
+unset PKG_CONFIG_PATH
+export PKG_CONFIG_LIBDIR="$DEPS_INSTALL_DIR/lib/pkgconfig"
+
 rm -rf "$WINXX_BUILD_DIR"
 meson setup "$WINXX_BUILD_DIR" \
-    --pkg-config-path="$DEPS_INSTALL_DIR/lib/pkgconfig" \
     -Dc_args="-I$DEPS_INSTALL_DIR/include" \
     -Dc_link_args="-L$DEPS_INSTALL_DIR/lib" \
     --cross-file=cross_$WINXX.txt \