From 00c364a0cbffefab6ba1982d6e1d630b08c72916 Mon Sep 17 00:00:00 2001
From: Ben Cumming <bcumming@cscs.ch>
Date: Thu, 29 Aug 2019 12:03:11 +0200
Subject: [PATCH] libunwind is optional and off by default. (#855)
* libunwind is optional, and off by default.
* fix description of CMake option
---
CMakeLists.txt | 18 ++++++++++++------
1 file changed, 12 insertions(+), 6 deletions(-)
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6c080094..0ffce50f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -39,6 +39,10 @@ set(ARB_VALIDATION_DATA_DIR "${PROJECT_SOURCE_DIR}/validation/data" CACHE PATH
option(ARB_USE_POSIX_GLOB "wrap POSIX glob(3) for glob functionality" ON)
+# Use libunwind to generate stack traces on errors?
+
+option(ARB_UNWIND "Use libunwind for stack trace printing if available" OFF)
+
#----------------------------------------------------------
# Configure-time features for Arbor:
#----------------------------------------------------------
@@ -275,15 +279,17 @@ if(ARB_WITH_GPU)
$<$<COMPILE_LANGUAGE:CUDA>:-gencode=arch=compute_70,code=sm_70>)
endif()
-# Use libunwind if available for pretty printing stack traces
+# Use libunwind if requested for pretty printing stack traces
#-------------------------------------------------------------
-find_package(Unwind)
-if(Unwind_FOUND)
- target_link_libraries(arbor-private-deps INTERFACE Unwind::unwind)
- target_compile_definitions(arbor-private-deps INTERFACE WITH_UNWIND)
+if (ARB_UNWIND)
+ find_package(Unwind REQUIRED)
+ if(Unwind_FOUND)
+ target_link_libraries(arbor-private-deps INTERFACE Unwind::unwind)
+ target_compile_definitions(arbor-private-deps INTERFACE WITH_UNWIND)
- list(APPEND arbor_export_dependencies "Unwind")
+ list(APPEND arbor_export_dependencies "Unwind")
+ endif()
endif()
# Build and use modcc unless explicit path given
--
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