bcp --namespace breaks path to import boost_install in Jamroot

[jbmercha]

When using bcp.exe to create a boost subset with a new namespace, building the subset is broken because in the Jamfile the import for boost_install has had the "boost_" portion renamed to the new namespace.

Build\boost>.\dist\bin\bcp.exe --namespace=myboost --namespace-alias regex log headers predef config build boost_install ..\foo
Build\boost>cd ..\foo
Build\foo>.\bootstrap.bat
Build\foo>.\b2 toolset=msvc-14.1 --with-regex --with-log
boost-install.jam: No such file or directory
Jamroot:307: in boost-install
ERROR: rule "boost-install.boost-install" unknown in module "Jamfile<Build\foo>".
libs\atomic\build\Jamfile.v2:38: in modules.load

[firewave]

This issue was introduced with Boost 1.70 and prevents us from updating.

@pdimov After looking at the commit log I suspect boostorg/boost_install@90b1f04 might be the cause.

[pdimov]

This should be fixed with boostorg/boost@d0586e8.

[firewave]

Thanks. I applied the patch locally but I still get the same error.

[pdimov]

What command are you using? Note that without #5, you need to manually add headers and boost_install to the bcp command.

[firewave]

I am using https://github.com/conan-community/conan-boost with boost:namespace = boost_ns and boost:namespace_alias = True. I will see if I can find the actual commands being used in the output.

[pdimov]

Looks like you need to either add headers and boost_install to https://github.com/conan-community/conan-boost/blob/release/1.70.0/conanfile.py#L366, or patch bcp as per the above PR.

[firewave]

Thanks a lot - that seems to have done it (I added the libraries).

I will open a ticket with the boost-conan project so they are aware.

[adesitter]

The issue has re-appeared with boost 1.86.

mv boost_1_86_0 fullboost
mkdir boost_1_86_0
cd fullboost

mv boost_1_86_0 fullboost
mkdir boost_1_86_0
cd fullboost
./bootstrap.sh --with-toolset=gcc --with-libraries=chrono,date_time,iostreams,math,program_options,system,thread
./b2 linkflags="-static-libstdc++" tools/bcp
dist/bin/bcp --namespace=xxxboost  build boost_install chrono date_time iostreams math program_options system thread spirit numeric crc.hpp random.hpp ../boost_1_86_0

fails to build.

Two patches are necessary to make it work.
#1 [boost_bcp_1.patch] replace removed method of boost::filesystem.
This is boostorg/boost#942.
The fixes have already been committed to https://github.com/boostorg/bcp.

#2 [boost_bcp_2.patch] fix management of "boost_install" in Jamroot
This is similar to boostorg/boost@4a6094a authored by @pdimov.

The second patch is:

diff -ru orig/boost_1_86_0/Jamroot new/boost_1_86_0/Jamroot
--- orig/boost_1_86_0/Jamroot	2024-08-07 22:07:32.000000000 +0000
+++ new/boost_1_86_0/Jamroot	2024-09-06 19:29:05.931827578 +0000
@@ -461,7 +461,7 @@
     project.pop-current ;
 }
 
-if ! [ project.search /boost/tools/boost_install ]
+if ! [ project.search /boost/tools/boost\_install ]
 {
-    use-project /boost/tools/boost_install : tools/boost_install ;
+    use-project /boost/tools/boost\_install : tools/boost\_install ;
 }

boost_bcp_1.patch
boost_bcp_2.patch

[pdimov]

I've fixed Jamroot again.