From d92a7e953910f281942c9ea55bd98b29ed94f883 Mon Sep 17 00:00:00 2001
From: messense <messense@icloud.com>
Date: Sun, 10 Sep 2023 19:24:43 +0800
Subject: [PATCH] Fix Windows CMake `Invalid character escape '\U'` error

---
 .github/workflows/CI.yml | 11 +++++++++--
 src/zig.rs               | 23 +++++++++++++----------
 2 files changed, 22 insertions(+), 12 deletions(-)

diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 39acae6..dee21ae 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -76,7 +76,7 @@ jobs:
         if: matrix.toolchain != '1.63.0'
         shell: bash
         run: |
-          set -e
+          set -euo pipefail
           git clone --recurse-submodules https://github.com/gyscos/zstd-rs.git tests/zstd-rs
           cargo run zigbuild --manifest-path tests/zstd-rs/Cargo.toml --features bindgen --target aarch64-unknown-linux-gnu
           cargo run zigbuild --manifest-path tests/zstd-rs/Cargo.toml --features bindgen --target x86_64-pc-windows-gnu
@@ -97,7 +97,7 @@ jobs:
         env:
           SDK: MacOSX11.3.sdk
         run: |
-          set -e
+          set -euo pipefail
           curl -sqL https://github.com/phracker/MacOSX-SDKs/releases/download/11.3/$SDK.tar.xz | tar -Jx
           export SDKROOT=$PWD/$SDK
 
@@ -127,7 +127,9 @@ jobs:
             ldd -r -v ./target/x86_64-unknown-linux-gnu/debug/cargo-zigbuild
             ./target/x86_64-unknown-linux-gnu/debug/cargo-zigbuild --help
       - name: Linux - Test glibc build
+        shell: bash
         run: |
+          set -euo pipefail
           cargo run zigbuild --target aarch64-unknown-linux-gnu
           cargo run zigbuild --target aarch64-unknown-linux-gnu.2.17
 
@@ -142,6 +144,7 @@ jobs:
       - name: Linux - Test glibc run/test
         if: matrix.os == 'ubuntu-latest'
         run: |
+          set -euo pipefail
           # Install qemu for `cargo-zigbuild run` support
           sudo apt-get update
           sudo apt-get install -y qemu-user qemu-user-static gcc-aarch64-linux-gnu binfmt-support
@@ -160,7 +163,9 @@ jobs:
           cargo run zigbuild --target aarch64-unknown-linux-musl
           cargo run zigbuild --target aarch64-unknown-linux-musl --manifest-path tests/hello-rustls/Cargo.toml
       - name: Windows - Test gnu build
+        shell: bash
         run: |
+          set -euo pipefail
           cargo run zigbuild --target x86_64-pc-windows-gnu
           cargo run zigbuild --target x86_64-pc-windows-gnu --manifest-path tests/hello-windows/Cargo.toml
           cargo run zigbuild --target i686-pc-windows-gnu
@@ -171,7 +176,9 @@ jobs:
           cargo run zigbuild --target aarch64-unknown-linux-gnu --manifest-path tests/hello-rustls/Cargo.toml --features curl
       - name: Windows - Test run
         if: matrix.os == 'windows-latest'
+        shell: bash
         run: |
+          set -euo pipefail
           ./target/x86_64-pc-windows-gnu/debug/cargo-zigbuild.exe zigbuild --help
           ./tests/hello-windows/target/x86_64-pc-windows-gnu/debug/hello-windows.exe
 
diff --git a/src/zig.rs b/src/zig.rs
index 48abd9b..0196aae 100644
--- a/src/zig.rs
+++ b/src/zig.rs
@@ -170,12 +170,10 @@ impl Zig {
                     }
                 }
             }
-            if is_macos {
-                if arg.starts_with("-Wl,--exported_symbols_list,") {
-                    // zig doesn't support --exported_symbols_list arg
-                    // https://clang.llvm.org/docs/ClangCommandLineReference.html#cmdoption-clang-exported_symbols_list
-                    return None;
-                }
+            if is_macos && arg.starts_with("-Wl,--exported_symbols_list,") {
+                // zig doesn't support --exported_symbols_list arg
+                // https://clang.llvm.org/docs/ClangCommandLineReference.html#cmdoption-clang-exported_symbols_list
+                return None;
             }
             Some(arg.to_string())
         };
@@ -863,16 +861,21 @@ impl Zig {
 set(CMAKE_SYSTEM_NAME {system_name})
 set(CMAKE_SYSTEM_PROCESSOR {system_processor})
 set(CMAKE_C_COMPILER {cc})
+set(CMAKE_C_LINK_EXECUTABLE {cc})
 set(CMAKE_CXX_COMPILER {cxx})
+set(CMAKE_CXX_LINK_EXECUTABLE {cxx})
 set(CMAKE_RANLIB {ranlib})"#,
             system_name = system_name,
             system_processor = system_processor,
-            cc = zig_wrapper.cc.display(),
-            cxx = zig_wrapper.cxx.display(),
-            ranlib = zig_wrapper.ranlib.display(),
+            cc = zig_wrapper.cc.to_slash_lossy(),
+            cxx = zig_wrapper.cxx.to_slash_lossy(),
+            ranlib = zig_wrapper.ranlib.to_slash_lossy(),
         );
         if enable_zig_ar {
-            content.push_str(&format!("\nset(CMAKE_AR {})\n", zig_wrapper.ar.display()));
+            content.push_str(&format!(
+                "\nset(CMAKE_AR {})\n",
+                zig_wrapper.ar.to_slash_lossy()
+            ));
         }
         fs::write(&toolchain_file, content)?;
         Ok(toolchain_file)