all around: disable print_system_libs in calls to pkg-config

By default, pkg-config-rs sets the PKG_CONFIG_ALLOW_SYSTEM_LIBS
environment variable
(rust-lang/pkg-config-rs#35), which leads
to eg /usr/lib being present in the middle of the final command,
in turn leading to issues when working in an uninstalled environment,
where libraries that are also present system-wide do not get linked
against.

Author: MathieuDuponchelle

gstreamer-app-sys/build.rs

@@ -45,6 +45,7 @@ fn find() -> Result<(), Error> {
 
     let mut config = Config::new();
     config.atleast_version(version);
+    config.print_system_libs(false);
     if hardcode_shared_libs {
         config.cargo_metadata(false);
     }

gstreamer-audio-sys/build.rs

@@ -45,6 +45,7 @@ fn find() -> Result<(), Error> {
 
     let mut config = Config::new();
     config.atleast_version(version);
+    config.print_system_libs(false);
     if hardcode_shared_libs {
         config.cargo_metadata(false);
     }

gstreamer-base-sys/build.rs

@@ -49,6 +49,7 @@ fn find() -> Result<(), Error> {
 
     let mut config = Config::new();
     config.atleast_version(version);
+    config.print_system_libs(false);
     if hardcode_shared_libs {
         config.cargo_metadata(false);
     }

gstreamer-mpegts-sys/build.rs

@@ -33,6 +33,7 @@ fn find() -> Result<(), Error> {
 
     let mut config = Config::new();
     config.atleast_version(version);
+    config.print_system_libs(false);
     if hardcode_shared_libs {
         config.cargo_metadata(false);
     }

gstreamer-net-sys/build.rs

@@ -45,6 +45,7 @@ fn find() -> Result<(), Error> {
 
     let mut config = Config::new();
     config.atleast_version(version);
+    config.print_system_libs(false);
     if hardcode_shared_libs {
         config.cargo_metadata(false);
     }

gstreamer-pbutils-sys/build.rs

@@ -43,6 +43,7 @@ fn find() -> Result<(), Error> {
 
     let mut config = Config::new();
     config.atleast_version(version);
+    config.print_system_libs(false);
     if hardcode_shared_libs {
         config.cargo_metadata(false);
     }

gstreamer-player-sys/build.rs

@@ -33,6 +33,7 @@ fn find() -> Result<(), Error> {
 
     let mut config = Config::new();
     config.atleast_version(version);
+    config.print_system_libs(false);
     if hardcode_shared_libs {
         config.cargo_metadata(false);
     }

gstreamer-rtsp-server-sys/Cargo.toml

@@ -9,15 +9,6 @@ pkg-config = "0.3.7"
 bitflags = "1.0"
 libc = "0.2"
 
-[dependencies.gio-sys]
-git = "https://github.com/gtk-rs/sys"
-
-[dependencies.glib-sys]
-git = "https://github.com/gtk-rs/sys"
-
-[dependencies.gobject-sys]
-git = "https://github.com/gtk-rs/sys"
-
 [dependencies.gstreamer-net-sys]
 path = "../gstreamer-net-sys"
 
@@ -30,6 +21,15 @@ path = "../gstreamer-sdp-sys"
 [dependencies.gstreamer-sys]
 path = "../gstreamer-sys"
 
+[dependencies.gio-sys]
+git = "https://github.com/gtk-rs/sys"
+
+[dependencies.glib-sys]
+git = "https://github.com/gtk-rs/sys"
+
+[dependencies.gobject-sys]
+git = "https://github.com/gtk-rs/sys"
+
 [features]
 dox = []
 v1_4 = []

gstreamer-rtsp-server-sys/build.rs

@@ -39,6 +39,7 @@ fn find() -> Result<(), Error> {
 
     let mut config = Config::new();
     config.atleast_version(version);
+    config.print_system_libs(false);
     if hardcode_shared_libs {
         config.cargo_metadata(false);
     }

gstreamer-rtsp-sys/build.rs

@@ -41,6 +41,7 @@ fn find() -> Result<(), Error> {
 
     let mut config = Config::new();
     config.atleast_version(version);
+    config.print_system_libs(false);
     if hardcode_shared_libs {
         config.cargo_metadata(false);
     }