Check flag support before adding

aws · Oct 10, 2024 · d4a29c8 · d4a29c8
1 parent e9e6e22
commit d4a29c8
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Showing 2 changed files with 11 additions and 4 deletions.
diff --git a/aws-lc-fips-sys/Cargo.toml b/aws-lc-fips-sys/Cargo.toml
@@ -63,6 +63,7 @@ bindgen = ["dep:bindgen"] # Generate the bindings on the targetted platform as a
 cmake = "0.1.48"
 dunce = "1.0"
 fs_extra = "1.3"
+cc = "1.0.100"
 
 [target.'cfg(all(any(target_arch = "x86_64", target_arch = "aarch64"), any(target_os = "linux", target_os = "macos"), any(target_env = "gnu", target_env = "musl", target_env = "")))'.build-dependencies]
 bindgen = { version = "0.69.2", optional = true }

diff --git a/aws-lc-fips-sys/builder/cmake_builder.rs b/aws-lc-fips-sys/builder/cmake_builder.rs
@@ -103,10 +103,16 @@ impl CmakeBuilder {
             } else {
                 cmake_cfg.define("CMAKE_BUILD_TYPE", "release");
                 if target_family() == "unix" || target_env() == "gnu" {
-                    cmake_cfg.cflag(format!(
-                        "-ffile-prefix-map={}=",
-                        self.manifest_dir.display()
-                    ));
+                    let build = cc::Build::new();
+                    let flag = format!("-ffile-prefix-map={}=", self.manifest_dir.display());
+                    if let Ok(true) = build.is_flag_supported(&flag) {
+                        cmake_cfg.cflag(flag);
+                    } else {
+                        let flag = format!("-fdebug-prefix-map={}=", self.manifest_dir.display());
+                        if let Ok(true) = build.is_flag_supported(&flag) {
+                            cmake_cfg.cflag(flag);
+                        }
+                    }
                 }
             }
         } else if target_os() == "windows" {