tests: Fix duplicated-path-in-error fail with musl

musl's dlopen returns a different error than glibc, which contains the
name of the file. This would cause the test to fail, since the filename
would appear twice in the output (once in the error from rustc, once in
the error message from musl). Split the expected test outputs for the
different libc implementations.

Signed-off-by: Jens Reidel <adrian@travitia.xyz>

3 files changed, 9 insertions, 0 deletions

diff --git a/tests/ui/codegen/duplicated-path-in-error.stderr b/tests/ui/codegen/duplicated-path-in-error.gnu.stderr
index d0d34e2f934..d0d34e2f934 100644
--- a/tests/ui/codegen/duplicated-path-in-error.stderr
+++ b/tests/ui/codegen/duplicated-path-in-error.gnu.stderr
diff --git a/tests/ui/codegen/duplicated-path-in-error.musl.stderr b/tests/ui/codegen/duplicated-path-in-error.musl.stderr
new file mode 100644
index 00000000000..2892ebffdde
--- /dev/null
+++ b/tests/ui/codegen/duplicated-path-in-error.musl.stderr
@@ -0,0 +1,2 @@
+error: couldn't load codegen backend /non-existing-one.so: Error loading shared library /non-existing-one.so: No such file or directory
+
diff --git a/tests/ui/codegen/duplicated-path-in-error.rs b/tests/ui/codegen/duplicated-path-in-error.rs
index a446395de20..fed93828ee2 100644
--- a/tests/ui/codegen/duplicated-path-in-error.rs
+++ b/tests/ui/codegen/duplicated-path-in-error.rs
@@ -1,8 +1,15 @@
+//@ revisions: musl gnu
 //@ only-linux
+//@ ignore-cross-compile because this relies on host libc behaviour
 //@ compile-flags: -Zcodegen-backend=/non-existing-one.so
+//@[gnu] only-gnu
+//@[musl] only-musl
 
 // This test ensures that the error of the "not found dylib" doesn't duplicate
 // the path of the dylib.
+//
+// glibc and musl have different dlopen error messages, so the expected error
+// message differs between the two.
 
 fn main() {}