From 6f47f3d5af07d07effe4466d0d8ee43eb430cbe4 Mon Sep 17 00:00:00 2001
From: William Pettersson <william@ewpettersson.se>
Date: Fri, 25 Jun 2021 09:40:39 +0100
Subject: [PATCH] Tweaks to boost program_options

value<bool> required an argument (true/false), whereas bool_switch is
new (since 1.59) and is an actual switch.
---
 CMakeLists.txt | 2 +-
 src/aira.cpp   | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 10b7c0a..d880ba7 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -34,7 +34,7 @@ FIND_PACKAGE(CPLEX REQUIRED)
 INCLUDE_DIRECTORIES(${CPLEX_INCLUDE_DIR})
 LINK_DIRECTORIES(${CPLEX_LIBRARY_PATH})
 
-FIND_PACKAGE(Boost 1.57.0 COMPONENTS program_options)
+FIND_PACKAGE(Boost 1.59.0 COMPONENTS program_options)
 INCLUDE_DIRECTORIES(${Boost_INCLUDE_DIR})
 
 SET(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -DDEBUG")
diff --git a/src/aira.cpp b/src/aira.cpp
index 34b3663..9af5e8b 100644
--- a/src/aira.cpp
+++ b/src/aira.cpp
@@ -181,7 +181,7 @@ int main (int argc, char *argv[])
      "If splitting, assume a normal distribution for objective values\n"
      "Optional, defaults to False.")
     ("spread,s",
-     po::value<bool>(&spread)->default_value(true),
+     po::bool_switch(&spread)->default_value(true),
      "Spread threads out over various subgroups of the symmetries (as opposed to clustering inside subgroups).\n"
      "Optional, defaults to True")
     ("threads,t",