Fix static linking with git2's C libraries.

.cargo/config

@@ -4,8 +4,3 @@
 #rustflags = ["-C", "link-arg=-fuse-ld=lld"]
 #[target.aarch64-unknown-linux-gnu]
 #rustflags = ["-C", "link-arg=-fuse-ld=lld"]
-
-# Statically link the MSVC C Runtime on Windows, so the EXEs can run without
-# installing the C Runtime DLL.
-#[target.'cfg(all(target_env = "msvc"))']
-#rustflags = ["-C", "target-feature=+crt-static"]

.github/workflows/release.yml

@@ -101,6 +101,17 @@ jobs:
             use-cross: false
 
     steps:
+
+      # Build all crates with a statically linked MSVCRT. Specifically crates
+      # that use `cc` in their build scripts (like libgit2-sys), will detect this
+      # and compile objects appropriatly. If there is a way to put this into a
+      # Cargo config file some where, let me know. .cargo/config did not work.
+      - name: Statically link MSVCRT
+        shell: bash
+        if: matrix.os == 'windows'
+        run: |
+          echo "RUSTFLAGS=-C target-feature=+crt-static" >> $GITHUB_ENV
+
       - name: Checkout repository
         uses: actions/checkout@v2