tests/rust: Add rust case linking to zlib dependency

Reworks:
 * Add MESON_SKIP_TEST error for darwin from polyglot test
 * Remove dependencies from executable

Dylan's changes:
 * Add support for both static and shared testing
 * Test with pkg-config, cmake, and system
 * reformat to meson's style

Co-authored-by: Dylan Baker <dylan@pnwbakers.com>

5 files changed, 59 insertions, 0 deletions

diff --git a/test cases/rust/13 external c dependencies/c_accessing_zlib.c b/test cases/rust/13 external c dependencies/c_accessing_zlib.c
new file mode 100644
index 0000000..358b989
--- /dev/null
+++ b/test cases/rust/13 external c dependencies/c_accessing_zlib.c
@@ -0,0 +1,10 @@
+#include <stdio.h>
+#include <string.h>
+#include <zlib.h>
+
+void c_accessing_zlib(void) {
+    struct z_stream_s zstream;
+    printf("Hello from C!\n");
+    memset(&zstream, 0, sizeof(zstream));
+    inflateInit(&zstream);
+}
diff --git a/test cases/rust/13 external c dependencies/meson.build b/test cases/rust/13 external c dependencies/meson.build
new file mode 100644
index 0000000..e5caf70
--- /dev/null
+++ b/test cases/rust/13 external c dependencies/meson.build
@@ -0,0 +1,23 @@
+project('rust linking to c using dependency', 'c', 'rust')
+
+if host_machine.system() == 'darwin'
+  error('MESON_SKIP_TEST: doesnt work right on macos, please fix!')
+endif
+
+dep_zlib = dependency('zlib', static : get_option('static'), method : get_option('method'), required : false)
+if not dep_zlib.found()
+  error('MESON_SKIP_TEST: Could not find a @0@ zlib'.format(get_option('static') ? 'static' : 'shared'))
+endif
+
+l = static_library(
+  'c_accessing_zlib',
+  'c_accessing_zlib.c',
+  dependencies: [dep_zlib],
+)
+
+e = executable(
+  'prog', 'prog.rs',
+  link_with : l,
+)
+
+test('cdepstest', e)
diff --git a/test cases/rust/13 external c dependencies/meson_options.txt b/test cases/rust/13 external c dependencies/meson_options.txt
new file mode 100644
index 0000000..f501348
--- /dev/null
+++ b/test cases/rust/13 external c dependencies/meson_options.txt
@@ -0,0 +1,2 @@
+option('static', type : 'boolean')
+option('method', type : 'string')
diff --git a/test cases/rust/13 external c dependencies/prog.rs b/test cases/rust/13 external c dependencies/prog.rs
new file mode 100644
index 0000000..b30ec24
--- /dev/null
+++ b/test cases/rust/13 external c dependencies/prog.rs
@@ -0,0 +1,9 @@
+extern "C" {
+    fn c_accessing_zlib();
+}
+
+fn main() {
+    unsafe {
+        c_accessing_zlib();
+    }
+}
diff --git a/test cases/rust/13 external c dependencies/test.json b/test cases/rust/13 external c dependencies/test.json
new file mode 100644
index 0000000..ad0e79a
--- /dev/null
+++ b/test cases/rust/13 external c dependencies/test.json
@@ -0,0 +1,15 @@
+{
+  "matrix": {
+    "options": {
+      "static": [
+        { "val": true },
+        { "val": false }
+      ],
+      "method": [
+        { "val": "pkg-config" },
+        { "val": "cmake" },
+        { "val": "system" }
+      ]
+    }
+  }
+}