--- boost_1_78_0/libs/beast/Jamfile.orig
+++ boost_1_78_0/libs/beast/Jamfile
@@ -129,7 +129,7 @@
     <toolset>msvc,<variant>release:<cxxflags>"/Ob2 /Oi /Ot"
     <target-os>linux:<define>_XOPEN_SOURCE=600
     <target-os>linux:<define>_GNU_SOURCE=1
-    <target-os>solaris:<define>_XOPEN_SOURCE=500
+    <target-os>solaris:<define>_XOPEN_SOURCE=600
     <target-os>solaris:<define>__EXTENSIONS__
     <target-os>solaris:<library>socket
     <target-os>solaris:<library>nsl
--- boost_1_78_0/libs/asio/test/Jamfile.v2.orig
+++ boost_1_78_0/libs/asio/test/Jamfile.v2
@@ -31,7 +31,7 @@
     <threading>multi
     <target-os>linux:<define>_XOPEN_SOURCE=600
     <target-os>linux:<define>_GNU_SOURCE=1
-    <target-os>solaris:<define>_XOPEN_SOURCE=500
+    <target-os>solaris:<define>_XOPEN_SOURCE=600
     <target-os>solaris:<define>__EXTENSIONS__
     <target-os>solaris:<library>socket
     <target-os>solaris:<library>nsl
--- boost_1_78_0/libs/asio/test/properties/cpp11/Jamfile.v2.orig
+++ boost_1_78_0/libs/asio/test/properties/cpp11/Jamfile.v2
@@ -24,7 +24,7 @@
     <threading>multi
     <target-os>linux:<define>_XOPEN_SOURCE=600
     <target-os>linux:<define>_GNU_SOURCE=1
-    <target-os>solaris:<define>_XOPEN_SOURCE=500
+    <target-os>solaris:<define>_XOPEN_SOURCE=600
     <target-os>solaris:<define>__EXTENSIONS__
     <target-os>solaris:<library>socket
     <target-os>solaris:<library>nsl
--- boost_1_78_0/libs/asio/test/properties/cpp14/Jamfile.v2.orig
+++ boost_1_78_0/libs/asio/test/properties/cpp14/Jamfile.v2
@@ -24,7 +24,7 @@
     <threading>multi
     <target-os>linux:<define>_XOPEN_SOURCE=600
     <target-os>linux:<define>_GNU_SOURCE=1
-    <target-os>solaris:<define>_XOPEN_SOURCE=500
+    <target-os>solaris:<define>_XOPEN_SOURCE=600
     <target-os>solaris:<define>__EXTENSIONS__
     <target-os>solaris:<library>socket
     <target-os>solaris:<library>nsl