druntime: Enable DRT_* environment variables support by default

In order to trivially switch between GCs.
symmetryinvestments · Dec 5, 2024 · 175011b · 175011b
1 parent 0be77e5
commit 175011b
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diff --git a/.github/actions/6-integration-test/action.yml b/.github/actions/6-integration-test/action.yml
@@ -19,6 +19,7 @@ runs:
         installed/bin/ldc2 hello.d -link-defaultlib-shared
         ./hello
         if [[ '${{ runner.os }}' == Linux ]]; then
+          DRT_GCOPT="gc:sdc" ./hello
           installed/bin/ldc2 hello.d -m32 -link-defaultlib-shared
           ./hello
         fi

diff --git a/runtime/druntime/src/rt/config.d b/runtime/druntime/src/rt/config.d
@@ -49,7 +49,7 @@ version (LDC) // use @weak
 
     extern(C) __gshared @weak
     {
-        pragma(mangle, "rt_envvars_enabled") bool _rt_envvars_enabled = false;
+        pragma(mangle, "rt_envvars_enabled") bool _rt_envvars_enabled = true; // Symmetry-specific
         pragma(mangle, "rt_cmdline_enabled") bool _rt_cmdline_enabled = true;
         pragma(mangle, "rt_options") string[] _rt_options = [];
     }