github ci: download llvm over https, add -L flag to curl

L means follow redirects

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index bcf4f3e57963b01e5557b22eb8f76b1e463b04ed..e2ecea4428279287d52b1e2deed1def3c4dd4a1e 100644 (file)
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -34,7 +34,7 @@ jobs:
     - name: Install clang (MacOS)
       shell: bash
       run: |
-        curl -sSf http://releases.llvm.org/9.0.0/clang+llvm-9.0.0-x86_64-darwin-apple.tar.xz | tar xJf -
+        curl -sSfL https://releases.llvm.org/9.0.0/clang+llvm-9.0.0-x86_64-darwin-apple.tar.xz | tar xJf -
         export CLANG_DIR=`pwd`/clang+llvm-9.0.0-x86_64-darwin-apple/bin
         echo "::add-path::$CLANG_DIR"
         echo "::set-env name=WASM_CC::$CLANG_DIR/clang"
@@ -43,7 +43,7 @@ jobs:
     - name: Install clang (Linux)
       shell: bash
       run: |
-        curl -sSf https://releases.llvm.org/9.0.0/clang+llvm-9.0.0-x86_64-linux-gnu-ubuntu-16.04.tar.xz | tar xJf -
+        curl -sSfL https://releases.llvm.org/9.0.0/clang+llvm-9.0.0-x86_64-linux-gnu-ubuntu-16.04.tar.xz | tar xJf -
         export CLANG_DIR=`pwd`/clang+llvm-9.0.0-x86_64-linux-gnu-ubuntu-16.04/bin
         echo "::add-path::$CLANG_DIR"
         echo "::set-env name=WASM_CC::$CLANG_DIR/clang"