repl.cc: Check for HAVE_BOEHMGC

Fixes #3906.
2020-08-06 11:40:41 +02:00 · 2020-08-06 11:40:41 +02:00 · 59067f0f58
parent 3321b2bc65
commit 59067f0f58
1 changed files with 6 additions and 1 deletions
--- a/src/nix/repl.cc
+++ b/src/nix/repl.cc
@ -33,12 +33,17 @@ extern "C" {
 #include "command.hh"
 #include "finally.hh"

+#if HAVE_BOEHMGC
 #define GC_INCLUDE_NEW
 #include <gc/gc_cpp.h>
+#endif

 namespace nix {

-struct NixRepl : gc
+struct NixRepl
+    #if HAVE_BOEHMGC
+    : gc
+    #endif
 {
    string curDir;
    std::unique_ptr<EvalState> state;