From 3b33a9561a9d8cc7cbdb7f1bcb208c21e9cbb496 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lukas=20B=C3=B6ger?= <mail@lboeger.de>
Date: Mon, 31 May 2021 09:03:55 +0100
Subject: [PATCH] add SEXP_USE_BOEHM configuration option

---
 CMakeLists.txt | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 286e0f64..c7bc8e8a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -42,6 +42,7 @@ else()
 endif()
 
 option(BUILD_SHARED_LIBS "Build chibi-scheme as a shared library" ${DEFAULT_SHARED_LIBS})
+option(SEXP_USE_BOEHM "Use Boehm garbage collection library" OFF)
 
 set(chibi-scheme-exclude-modules)
 if(WIN32)
@@ -101,6 +102,18 @@ if(CYGWIN)
     target_compile_definitions(libchibi-common INTERFACE SEXP_USE_STRING_STREAMS=0)
 endif()
 
+if(SEXP_USE_BOEHM)
+    find_library(BOEHMGC gc REQUIRED)
+    find_path(BOEHMGC_INCLUDE NAMES gc/gc.h)
+    target_compile_definitions(libchibi-common INTERFACE SEXP_USE_BOEHM=1)
+    target_include_directories(libchibi-common INTERFACE ${BOEHMGC_INCLUDE})
+    target_link_libraries(libchibi-common INTERFACE ${BOEHMGC}
+        $<$<CONFIG:SANITIZER>:-fsanitize=address,undefined>)
+else()
+    target_link_libraries(libchibi-common INTERFACE
+        $<$<CONFIG:SANITIZER>:-fsanitize=address,undefined>)
+endif()
+
 target_compile_options(libchibi-common
     INTERFACE
     $<$<CONFIG:SANITIZER>:-g