b2 link fixes.

.github/workflows/ci.yml

@@ -141,43 +141,6 @@ jobs:
           cd ../boost-root
           ./b2 -j3 libs/$LIBRARY/test toolset=${{matrix.toolset}} cxxstd=${{matrix.cxxstd}} variant=debug,release
 
-  alpine-linux:
-    runs-on: ubuntu-latest
-    container:
-      image: alpine:3.20.1
-    steps:
-      - name: Install packages
-        run: apk add g++ git python3 linux-headers
-
-      - uses: actions/checkout@v4
-
-      - name: Setup Boost
-        run: |
-          echo GITHUB_REPOSITORY: $GITHUB_REPOSITORY
-          LIBRARY=${GITHUB_REPOSITORY#*/}
-          echo LIBRARY: $LIBRARY
-          echo "LIBRARY=$LIBRARY" >> $GITHUB_ENV
-          echo GITHUB_BASE_REF: $GITHUB_BASE_REF
-          echo GITHUB_REF: $GITHUB_REF
-          REF=${GITHUB_BASE_REF:-$GITHUB_REF}
-          REF=${REF#refs/heads/}
-          echo REF: $REF
-          BOOST_BRANCH=develop && [ "$REF" == "master" ] && BOOST_BRANCH=master || true
-          echo BOOST_BRANCH: $BOOST_BRANCH
-          cd ..
-          git clone -b $BOOST_BRANCH --depth 1 https://github.com/boostorg/boost.git boost-root
-          cd boost-root
-          cp -r $GITHUB_WORKSPACE/* libs/$LIBRARY
-          git submodule update --init tools/boostdep
-          python3 tools/boostdep/depinst/depinst.py --git_args "--jobs 3" $LIBRARY
-          ./bootstrap.sh
-          ./b2 -d0 headers
-
-      - name: Run tests
-        run: |
-          cd ../boost-root
-          ./b2 -j3 libs/$LIBRARY/test toolset=gcc cxxstd=23 variant=debug,release
-
   windows:
     strategy:
       fail-fast: false

include/boost/process/v2/posix/default_launcher.hpp

@@ -329,7 +329,7 @@ struct default_launcher
                     Args && args,
                     Inits && ... inits ) -> basic_process<typename ExecutionContext::executor_type>
     {
-        return (*this)(context.get_executor(), ec, executable, std::forward<Args>(args), std::forward<Inits>(inits)...);
+        return (*this)(context.get_executor(), executable, std::forward<Args>(args), std::forward<Inits>(inits)...);
     }
 
     template<typename Executor, typename Args, typename ... Inits>

include/boost/process/v2/posix/fork_and_forget_launcher.hpp

@@ -44,7 +44,7 @@ struct fork_and_forget_launcher : default_launcher
                     Args && args,
                     Inits && ... inits ) -> basic_process<typename ExecutionContext::executor_type>
     {
-        return (*this)(context.get_executor(), ec, executable, std::forward<Args>(args), std::forward<Inits>(inits)...);
+        return (*this)(context.get_executor(), executable, std::forward<Args>(args), std::forward<Inits>(inits)...);
     }
 
     template<typename Executor, typename Args, typename ... Inits>

include/boost/process/v2/posix/pdfork_launcher.hpp

@@ -49,7 +49,7 @@ struct pdfork_launcher : default_launcher
                     Args && args,
                     Inits && ... inits ) -> basic_process<typename ExecutionContext::executor_type>
     {
-        return (*this)(context.get_executor(), ec, executable, std::forward<Args>(args), std::forward<Inits>(inits)...);
+        return (*this)(context.get_executor(), executable, std::forward<Args>(args), std::forward<Inits>(inits)...);
     }
 
     template<typename Executor, typename Args, typename ... Inits>

include/boost/process/v2/posix/vfork_launcher.hpp

@@ -46,7 +46,7 @@ struct vfork_launcher :  default_launcher
                     Args && args,
                     Inits && ... inits ) -> basic_process<typename ExecutionContext::executor_type>
     {
-        return (*this)(context.get_executor(), ec, executable, std::forward<Args>(args), std::forward<Inits>(inits)...);
+        return (*this)(context.get_executor(), executable, std::forward<Args>(args), std::forward<Inits>(inits)...);
     }
 
     template<typename Executor, typename Args, typename ... Inits>

include/boost/process/v2/windows/as_user_launcher.hpp

@@ -52,7 +52,7 @@ struct as_user_launcher : default_launcher
                      Args && args,
                      Inits && ... inits ) -> basic_process<typename ExecutionContext::executor_type>
   {
-      return (*this)(context.get_executor(), ec, executable, std::forward<Args>(args), std::forward<Inits>(inits)...);
+      return (*this)(context.get_executor(), executable, std::forward<Args>(args), std::forward<Inits>(inits)...);
   }
 
   template<typename Executor, typename Args, typename ... Inits>
@@ -133,4 +133,4 @@ struct as_user_launcher : default_launcher
 }
 BOOST_PROCESS_V2_END_NAMESPACE
 
-#endif //  BOOST_PROCESS_V2_WINDOWS_AS_USER_LAUNCHER_HPP
+#endif //  BOOST_PROCESS_V2_WINDOWS_AS_USER_LAUNCHER_HPP

src/posix/close_handles.cpp

@@ -47,7 +47,7 @@ int fdwalk(int (*func)(void *, int), void *cd);
 
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(5,11,0) // kernel has close_range
 
-// version is included by stdlib.h #include <gnu/libc-version.h>
+#include <gnu/libc-version.h>
 #if (__GLIBC__ >= 2 && __GLIBC_MINOR__ >= 34) // glibc is compiled with close_range support
 // https://man7.org/linux/man-pages/man2/close_range.2.html
 
@@ -60,10 +60,6 @@ int fdwalk(int (*func)(void *, int), void *cd);
 #if defined(SYS_close_range)
 
 #define BOOST_PROCESS_V2_HAS_CLOSE_RANGE 1
-#if !defined(CLOSE_RANGE_UNSHARE)
-#define CLOSE_RANGE_UNSHARE 2
-#endif
-
 int close_range(unsigned int first, unsigned int last, int flags)
 {
   return ::syscall(SYS_close_range, first, last, flags);