[librsvg] Write test output from the Rust tests to the same output/ dir from the C tests

[Federico Mena Quintero <federico src gnome org>]

commit a5fc7af7a8b4128c26511171063cb99a215750d2
Author: Federico Mena Quintero <federico gnome org>
Date:   Thu Jan 9 12:43:33 2020 -0600

    Write test output from the Rust tests to the same output/ dir from the C tests
    
    This keeps "make distcheck" happy.

 Makefile.am                      | 8 ++++----
 librsvg_crate/tests/utils/mod.rs | 4 +++-
 2 files changed, 7 insertions(+), 5 deletions(-)
---
diff --git a/Makefile.am b/Makefile.am
index 36cf4abe..d2ab8a3e 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -157,13 +157,13 @@ RUST_LIB=$(CARGO_TARGET_DIR)/$(RUST_TARGET_SUBDIR)/librsvg_c_api.a
 endif
 
 check-local:
-       cd $(srcdir) && \
-       CARGO_TARGET_DIR=$(CARGO_TARGET_DIR)    \
-       OUT_DIR=$(LIBRSVG_BUILD_DIR)            \
+       cd $(srcdir) &&                                 \
+       CARGO_TARGET_DIR=$(CARGO_TARGET_DIR)            \
+       OUT_DIR=$(LIBRSVG_BUILD_DIR)/tests/output       \
        $(CARGO) --locked test $(CARGO_VERBOSE) $(CARGO_TARGET_ARGS) $(CARGO_RELEASE_ARGS)
 
 clean-local:
-       cd $(top_srcdir) && \
+       cd $(top_srcdir) &&                     \
        CARGO_TARGET_DIR=$(CARGO_TARGET_DIR)    \
        $(CARGO) clean
 
diff --git a/librsvg_crate/tests/utils/mod.rs b/librsvg_crate/tests/utils/mod.rs
index 8b67ce29..d1f5aa52 100644
--- a/librsvg_crate/tests/utils/mod.rs
+++ b/librsvg_crate/tests/utils/mod.rs
@@ -10,7 +10,7 @@ use rsvg_internals;
 use self::rsvg_internals::surface_utils::shared_surface::{SharedImageSurface, SurfaceType};
 
 use std::env;
-use std::fs::File;
+use std::fs::{self, File};
 use std::io::BufReader;
 use std::path::PathBuf;
 
@@ -58,6 +58,8 @@ pub fn output_dir() -> PathBuf {
             .expect(r#"OUT_DIR is not set, please set it or run under "cargo test""#),
     );
 
+    fs::create_dir_all(&path).expect("could not create output directory for tests");
+
     println!("outputting to {}", path.to_string_lossy());
 
     path