Indicate static linker flag for static libraries

Author: twistedfall

build/cmake_probe.rs

@@ -159,6 +159,7 @@ impl<'r> CmakeProbe<'r> {
 				}
 			} else if !arg.starts_with('-') {
 				let path = Path::new(arg);
+				let is_static = path.extension().map_or(false, |ext| ext.eq_ignore_ascii_case("a"));
 				if let Some(file) = path.file_name().and_then(super::cleanup_lib_filename) {
 					if let Some(parent) = path.parent().map(|p| p.to_owned()) {
 						if !link_paths.contains(&parent) {
@@ -167,7 +168,12 @@ impl<'r> CmakeProbe<'r> {
 					} else {
 						panic!("{}", arg.to_string());
 					}
-					link_libs.push(file.to_str().expect("Non-UTF8 filename").to_string());
+					let file = file.to_str().expect("Non-UTF8 filename");
+					if is_static {
+						link_libs.push(format!("static={}", file));
+					} else {
+						link_libs.push(file.to_string());
+					}
 				}
 			} else {
 				eprintln!("=== Unexpected cmake compiler argument found: {arg}");