From 591d3e1f92a5eb6fb52049e987c8273eb468e527 Mon Sep 17 00:00:00 2001
From: Carl Hetherington <cth@carlh.net>
Date: Sat, 25 Oct 2025 15:07:57 +0200
Subject: Fix build on Arch with boost 1.89.

---
 cscript |  2 +-
 wscript | 14 +++++++++++---
 2 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/cscript b/cscript
index e0ec252f..dba67600 100644
--- a/cscript
+++ b/cscript
@@ -43,7 +43,7 @@ def build_with_cpp17(target):
 
 def dependencies(target, options):
     deps = [
-        ('libcxml', 'v0.17.14', { 'c++17': build_with_cpp17(target) }),
+        ('libcxml', 'v0.17.15', { 'c++17': build_with_cpp17(target) }),
         ('openjpeg', 'ad8edaacd54a862940d0a77c41ecda5858b54d6e'),
         ('asdcplib', 'v1.0.8')
     ]
diff --git a/wscript b/wscript
index b7eeb443..4734bfab 100644
--- a/wscript
+++ b/wscript
@@ -220,13 +220,19 @@ def configure(conf):
                    okmsg='yes',
                    errmsg='too old\nPlease install boost version %s or higher.' % boost_version[0])
 
+    conf.env.HAVE_BOOST_SYSTEM = conf.check_cxx(lib='boost_system%s' % boost_lib_suffix, mandatory=False)
+    def boost_libs(name):
+        libs = ['boost_system%s' % boost_lib_suffix] if conf.env.HAVE_BOOST_SYSTEM else []
+        libs.append('boost_%s%s' % (name, boost_lib_suffix))
+        return libs
+
     conf.check_cxx(fragment="""
     			    #include <boost/filesystem.hpp>\n
     			    int main() { boost::filesystem::copy_file ("a", "b"); }\n
 			    """,
                    msg='Checking for boost filesystem library',
                    libpath='/usr/local/lib',
-                   lib=['boost_filesystem%s' % boost_lib_suffix, 'boost_system%s' % boost_lib_suffix],
+                   lib=boost_libs('filesystem'),
                    uselib_store='BOOST_FILESYSTEM')
 
     conf.check_cxx(fragment="""
@@ -262,7 +268,7 @@ def configure(conf):
 			    """,
                    msg='Checking for boost datetime library',
                    libpath='/usr/local/lib',
-                   lib=['boost_date_time%s' % boost_lib_suffix, 'boost_system%s' % boost_lib_suffix],
+                   lib=boost_libs('date_time'),
                    uselib_store='BOOST_DATETIME')
 
     conf.check_cfg(package='libavcodec', args='--cflags --libs', uselib_store='AVCODEC', mandatory=True)
@@ -305,7 +311,9 @@ def build(bld):
     else:
         boost_lib_suffix = ''
 
-    libs="-L${libdir} -ldcp%s -lcxml -lboost_system%s" % (bld.env.API_VERSION, boost_lib_suffix)
+    libs="-L${libdir} -ldcp%s -lcxml " % bld.env.API_VERSION
+    if bld.env.HAVE_BOOST_SYSTEM:
+        libs += " -lboost_system%s" % boost_lib_suffix
     if bld.env.HAVE_HARU:
         libs += " -lhpdf"
     if bld.env.TARGET_LINUX:
-- 
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