From 8437b19a68a7cd0ef5284c5ac5abca2142096358 Mon Sep 17 00:00:00 2001
From: Dmitry Arkhipov <grisumbras@yandex.ru>
Date: Wed, 6 Nov 2024 17:39:20 +0300
Subject: [PATCH] fix installation of vendored zlib and bzip2

---
 build.jam        | 30 +++++++++++++++++++++++++++++-
 build/Jamfile.v2 | 18 ++++++++++--------
 2 files changed, 39 insertions(+), 9 deletions(-)

diff --git a/build.jam b/build.jam
index b07ec9b1f..475e02179 100644
--- a/build.jam
+++ b/build.jam
@@ -5,6 +5,8 @@
 
 require-b2 5.2 ;
 
+import os ;
+
 constant boost_dependencies :
     /boost/assert//boost_assert
     /boost/config//boost_config
@@ -30,12 +32,38 @@ project /boost/iostreams
         <include>include
     ;
 
+local compression-libs-to-install ;
+for local v in NO_COMPRESSION NO_ZLIB NO_BZIP2
+{
+    $(v) = [ modules.peek : $(v) ] ;
+}
+if $(NO_COMPRESSION) != 1 && $(NO_ZLIB) != 1
+{
+    constant has_zlib : true ;
+    if [ os.environ ZLIB_SOURCE ]
+    {
+        constant install_zlib : true ;
+        explicit [ alias boost_zlib : build//boost_zlib ] ;
+        compression-libs-to-install += boost_zlib ;
+    }
+}
+if $(NO_COMPRESSION) != 1 && $(NO_BZIP2) != 1
+{
+    constant has_bzip2 : true ;
+    if [ os.environ BZIP2_SOURCE ]
+    {
+        constant install_bzip2 : true ;
+        explicit [ alias boost_bzip2 : build//boost_bzip2 ] ;
+        compression-libs-to-install += boost_bzip2 ;
+    }
+}
+
 explicit
     [ alias boost_iostreams : build//boost_iostreams ]
     [ alias all : boost_iostreams example test ]
     ;
 
 call-if : boost-library iostreams
-    : install boost_iostreams
+    : install boost_iostreams $(compression-libs-to-install)
     ;
 
diff --git a/build/Jamfile.v2 b/build/Jamfile.v2
index 15f6631c5..8cff8d40a 100644
--- a/build/Jamfile.v2
+++ b/build/Jamfile.v2
@@ -25,25 +25,23 @@ import ac ;
 local debug = [ MATCH (--debug-configuration) : [ modules.peek : ARGV ] ] ;
 
 for local v in NO_COMPRESSION
-               NO_ZLIB
-               NO_BZIP2
                NO_LZMA
                NO_ZSTD
 {
     $(v) = [ modules.peek : $(v) ] ;
 }
 
-if $(NO_COMPRESSION) != 1 && $(NO_ZLIB) != 1
+if $(has_zlib)
 {
     using zlib : : <build-name>boost_zlib <tag>@tag ;
     zlib-requirements =
         [ ac.check-library /zlib//zlib : <library>/zlib//zlib
           <source>zlib.cpp <source>gzip.cpp ] ;
 
-    if [ os.environ ZLIB_SOURCE ]
+    if $(install_zlib)
     {
         alias boost_zlib : /zlib//zlib ;
-        libraries-to-install += boost_zlib ;
+        install-zlib = true ;
     }
 }
 else
@@ -54,17 +52,17 @@ else
     }
 }
 
-if $(NO_COMPRESSION) != 1 && $(NO_BZIP2) != 1
+if $(has_bzip2)
 {
     using bzip2 : : <build-name>boost_bzip2 <tag>@tag ;
     bzip2-requirements =
         [ ac.check-library /bzip2//bzip2 : <library>/bzip2//bzip2
           <source>bzip2.cpp ] ;
 
-    if [ os.environ BZIP2_SOURCE ]
+    if $(install_bzip2)
     {
         alias boost_bzip2 : /bzip2//bzip2 ;
-        libraries-to-install += boost_bzip2 ;
+        install-bzip2 = true ;
     }
 }
 else
@@ -74,6 +72,10 @@ else
         ECHO "notice: iostreams: not using bzip compression " ;
     }
 }
+if ! $(install-bzip2)
+{
+    alias boost_bzip2 ;
+}
 
 if $(NO_COMPRESSION) != 1 && $(NO_LZMA) != 1
 {