windows: Skip cmake on MSVC

Author: taiki-e

docker/test/fixtures/rust/build.rs

@@ -19,7 +19,7 @@ fn main() {
     }
 
     cc::Build::new().file("hello_c.c").compile("hello_c");
-    if target_os == "openbsd" || target_os == "windows" && target_env == "gnu" {
+    if target_os == "openbsd" || target_os == "windows" {
     } else {
         // Make sure that the link with libc works.
         println!("cargo:rustc-link-lib=c");
@@ -37,6 +37,11 @@ fn main() {
         );
     }
 
+    // TODO(windows-msvc):
+    if target_os == "windows" && target_env == "msvc" {
+        println!("cargo:rustc-cfg=no_cmake");
+        return;
+    }
     let cmake_dst = cmake::build("libhello_cmake");
     println!("cargo:rustc-link-search=native={}", cmake_dst.display());
     println!("cargo:rustc-link-lib=static=hello_cmake");

docker/test/fixtures/rust/src/main.rs

@@ -5,6 +5,7 @@ extern "C" {
     fn hello_c();
     #[cfg(feature = "cpp")]
     fn hello_cpp();
+    #[cfg(not(no_cmake))]
     fn hello_cmake(input: std::os::raw::c_int) -> std::os::raw::c_int;
 }
 
@@ -16,11 +17,14 @@ fn main() {
         #[cfg(feature = "cpp")]
         hello_cpp();
 
-        let input = 4;
-        let output = hello_cmake(input);
-        assert_eq!(output, 8);
-        println!("Hello Cmake from Rust!");
-        println!("{input} * 2 = {output}");
+        #[cfg(not(no_cmake))]
+        {
+            let input = 4;
+            let output = hello_cmake(input);
+            assert_eq!(output, 8);
+            println!("Hello Cmake from Rust!");
+            println!("{input} * 2 = {output}");
+        }
     }
 }
 
@@ -36,11 +40,14 @@ mod tests {
             #[cfg(feature = "cpp")]
             hello_cpp();
 
-            let input = 4;
-            let output = hello_cmake(input);
-            assert_eq!(output, 8);
-            println!("Hello Cmake from Rust!");
-            println!("{input} * 2 = {output}");
+            #[cfg(not(no_cmake))]
+            {
+                let input = 4;
+                let output = hello_cmake(input);
+                assert_eq!(output, 8);
+                println!("Hello Cmake from Rust!");
+                println!("{input} * 2 = {output}");
+            }
         }
     }
 }