Add github workflow to run RScons tests

Fix up some macOS test cases

.github/workflows/run-tests.yml

@@ -0,0 +1,38 @@
+name: Run RScons Tests
+
+on:
+  push:
+    branches:
+    - master
+  pull_request:
+
+jobs:
+  test:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macos-latest]
+        ruby-version: ['2.7', '3.0', '3.4']
+    
+    steps:
+    - name: Install dependencies (Linux)
+      if: runner.os == 'Linux'
+      run: sudo apt-get update && sudo apt-get install -y gcc gdc ldc clang flex bison
+
+    - name: Install dependencies (macOS)
+      if: runner.os == 'macOS'
+      run: brew install gcc ldc flex bison
+
+    - name: Checkout repository
+      uses: actions/checkout@v4
+
+    - name: Set up Ruby
+      uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: ${{ matrix.ruby-version }}
+
+    - name: Install dependencies
+      run: bundle install
+
+    - name: Run tests
+      run: rake all

build_tests/two_sources/assuffix.rb

@@ -3,5 +3,5 @@ env do |env|
   env["CFLAGS"] += %w[-S]
   env.Object("one.ssss", "one.c", "CPPFLAGS" => ["-DONE"])
   env.Object("two.sss", "two.c")
-  env.Program("two_sources.exe", %w[one.ssss two.sss], "ASFLAGS" => env["ASFLAGS"] + %w[-x assembler])
+  env.Program("two_sources.exe", %w[one.ssss two.sss], "ASFLAGS" => env["ASFLAGS"] + %w[-x assembler-with-cpp])
 end

spec/build_tests_spec.rb

@@ -665,7 +665,7 @@ EOF
     expect(result.stdout).to eq ""
   end
 
-  unless RUBY_PLATFORM =~ /mingw|msys/
+  unless RUBY_PLATFORM =~ /mingw|msys|darwin/
     it "supports building D sources with gdc" do
       test_dir("d")
       result = run_rscons
@@ -711,7 +711,7 @@ EOF
     expect(`./hello-d.exe`.rstrip).to eq "Hello from D, value is 33!"
   end
 
-  unless RUBY_PLATFORM =~ /mingw|msys/
+  unless RUBY_PLATFORM =~ /mingw|msys|darwin/
     it "links with the D linker when object files were built from D sources" do
       test_dir("d")
       result = run_rscons(args: %w[-f link_objects.rb])
@@ -761,7 +761,7 @@ EOF
     result = run_rscons(args: %w[-f disassemble.rb])
     expect(result.stderr).to eq ""
     expect(File.exist?("simple.txt")).to be_truthy
-    expect(File.read("simple.txt")).to match /Disassembly of section .text:/
+    expect(File.read("simple.txt")).to match /Disassembly of section/
 
     result = run_rscons(args: %w[-f disassemble.rb])
     expect(result.stderr).to eq ""
@@ -1211,7 +1211,7 @@ EOF
         %r{Compiling simple.c},
         %r{My Disassemble simple.txt},
       ])
-      expect(File.read("simple.txt")).to match /Disassembly of section .text:/
+      expect(File.read("simple.txt")).to match /Disassembly of section/
     end
   end
 
@@ -2024,7 +2024,7 @@ EOF
       {"check_d_compiler.rb" => "when no arguments are given",
        "check_d_compiler_find_first.rb" => "when arguments are given"}.each_pair do |rsconscript, desc|
         context desc do
-          unless RUBY_PLATFORM =~ /mingw|msys/
+          unless RUBY_PLATFORM =~ /mingw|msys|darwin/
             it "finds the first listed D compiler" do
               test_dir "configure"
               result = run_rscons(args: %W[-f #{rsconscript} configure])
@@ -2056,6 +2056,7 @@ EOF
         end
       end
 
+      unless RUBY_PLATFORM =~ /mingw|msys|darwin/
         it "respects use flag" do
           test_dir "configure"
           result = run_rscons(args: %w[-f check_d_compiler_use.rb -v])
@@ -2067,7 +2068,6 @@ EOF
           expect(result.stdout).to_not match %r{\bgdc .*/t2/}
         end
 
-      unless RUBY_PLATFORM =~ /mingw|msys/
         it "successfully tests a compiler with an unknown name that uses gdc-compatible options" do
           test_dir "configure"
           create_exe "mycompiler", %[exec gdc "$@"]