From 46b71d5e96e7a82860841c6015cc487525124c3e Mon Sep 17 00:00:00 2001
From: Klemens Morgenstern <klemens.d.morgenstern@gmail.com>
Date: Fri, 25 Oct 2024 08:13:48 +0800
Subject: [PATCH] Switched #error to ENOTSUP for ext libs. Should help #413

Closes #358.
---
 src/ext/cmd.cpp |  6 +++++-
 src/ext/cwd.cpp |  6 +++++-
 src/ext/exe.cpp |  6 +++++-
 src/pid.cpp     | 16 +++++++++++++++-
 4 files changed, 30 insertions(+), 4 deletions(-)

diff --git a/src/ext/cmd.cpp b/src/ext/cmd.cpp
index d74a06ef..c526c1e8 100644
--- a/src/ext/cmd.cpp
+++ b/src/ext/cmd.cpp
@@ -394,7 +394,11 @@ shell cmd(boost::process::v2::pid_type pid, boost::system::error_code & ec)
 }
 
 #else
-#error "Platform not supported"
+filesystem::path cmd(boost::process::v2::pid_type, boost::system::error_code & ec)
+{
+  BOOST_PROCESS_V2_ASSIGN_EC(ec, ENOTSUP, boost::system::system_category())
+  return "";
+}
 #endif
 
 shell cmd(boost::process::v2::pid_type pid)
diff --git a/src/ext/cwd.cpp b/src/ext/cwd.cpp
index 3345d33b..6f13eb83 100644
--- a/src/ext/cwd.cpp
+++ b/src/ext/cwd.cpp
@@ -197,7 +197,11 @@ filesystem::path cwd(boost::process::v2::pid_type pid, boost::system::error_code
 }
 
 #else
-#error "Platform not supported"
+filesystem::path cwd(boost::process::v2::pid_type pid, boost::system::error_code & ec)
+{
+  BOOST_PROCESS_V2_ASSIGN_EC(ec, ENOTSUP, boost::system::system_category())
+  return "";
+}
 #endif
 
 filesystem::path cwd(boost::process::v2::pid_type pid)
diff --git a/src/ext/exe.cpp b/src/ext/exe.cpp
index 82482644..8a57d982 100644
--- a/src/ext/exe.cpp
+++ b/src/ext/exe.cpp
@@ -175,7 +175,11 @@ filesystem::path exe(boost::process::v2::pid_type pid, boost::system::error_code
 }
 
 #else
-#error "Platform not supported"
+filesystem::path exe(boost::process::v2::pid_type pid, boost::system::error_code & ec)
+{
+  BOOST_PROCESS_V2_ASSIGN_EC(ec, ENOTSUP, boost::system::system_category())
+  return "";
+}
 #endif
 
 filesystem::path exe(boost::process::v2::pid_type pid)
diff --git a/src/pid.cpp b/src/pid.cpp
index 5f29ea36..ff5f1b1c 100644
--- a/src/pid.cpp
+++ b/src/pid.cpp
@@ -727,7 +727,21 @@ std::vector<pid_type> child_pids(pid_type pid, boost::system::error_code & ec)
 }
 
 #else
-#error "Platform not supported"
+std::vector<pid_type> all_pids(boost::system::error_code & ec)
+{
+  BOOST_PROCESS_V2_ASSIGN_EC(ec, ENOTSUP, system_category());
+  return {};
+}
+pid_type parent_pid(pid_type pid, boost::system::error_code & ec)
+{
+  BOOST_PROCESS_V2_ASSIGN_EC(ec, ENOTSUP, system_category());
+  return pid;
+}
+std::vector<pid_type> child_pids(pid_type, boost::system::error_code & ec)
+{
+  BOOST_PROCESS_V2_ASSIGN_EC(ec, ENOTSUP, system_category());
+  return {};
+}
 #endif
 
 std::vector<pid_type> all_pids()