From a37893ed15b147b817db904d57adbfe68fe4c3b3 Mon Sep 17 00:00:00 2001
From: Sam James <sam@gentoo.org>
Date: Mon, 6 Apr 2026 00:25:53 +0100
Subject: [PATCH] dev-libs/boost: fix hang on unsigned char arches

Bug: https://github.com/boostorg/process/issues/536
Bug: https://bugs.gentoo.org/969987
Signed-off-by: Sam James <sam@gentoo.org>
---
 ...t-1.90.0.ebuild => boost-1.90.0-r1.ebuild} |  1 +
 .../boost-1.90.0-unsigned-char-EOF.patch      | 41 +++++++++++++++++++
 2 files changed, 42 insertions(+)
 rename dev-libs/boost/{boost-1.90.0.ebuild => boost-1.90.0-r1.ebuild} (99%)
 create mode 100644 dev-libs/boost/files/boost-1.90.0-unsigned-char-EOF.patch

diff --git a/dev-libs/boost/boost-1.90.0.ebuild b/dev-libs/boost/boost-1.90.0-r1.ebuild
similarity index 99%
rename from dev-libs/boost/boost-1.90.0.ebuild
rename to dev-libs/boost/boost-1.90.0-r1.ebuild
index 04fd7db82e48e..d1d86e28fe416 100644
--- a/dev-libs/boost/boost-1.90.0.ebuild
+++ b/dev-libs/boost/boost-1.90.0-r1.ebuild
@@ -57,6 +57,7 @@ PATCHES=(
 	"${FILESDIR}"/${PN}-1.89.0-python-exclude-broken-tests.patch
 	"${FILESDIR}"/${PN}-1.89.0-unordered-no-tbb.patch
 	"${FILESDIR}"/${PN}-1.90.0-msm-std.patch
+	"${FILESDIR}"/${PN}-1.90.0-unsigned-char-EOF.patch
 )
 
 create_user-config.jam() {
diff --git a/dev-libs/boost/files/boost-1.90.0-unsigned-char-EOF.patch b/dev-libs/boost/files/boost-1.90.0-unsigned-char-EOF.patch
new file mode 100644
index 0000000000000..da89b4965a87c
--- /dev/null
+++ b/dev-libs/boost/files/boost-1.90.0-unsigned-char-EOF.patch
@@ -0,0 +1,41 @@
+https://github.com/boostorg/process/issues/536
+--- a/libs/process/src/ext/cmd.cpp
++++ b/libs/process/src/ext/cmd.cpp
+@@ -219,7 +219,7 @@ shell cmd(boost::process::v2::pid_type pid, error_code & ec)
+     procargs.resize(4096);
+     int f = ::open(("/proc/" + std::to_string(pid) + "/cmdline").c_str(), O_RDONLY);
+ 
+-    while (procargs.back() != EOF)
++    while (procargs.back() != (char) EOF)
+     {
+         auto r = ::read(f, &*(procargs.end() - 4096), 4096);
+         if (r < 0)
+@@ -237,7 +237,7 @@ shell cmd(boost::process::v2::pid_type pid, error_code & ec)
+     }
+     ::close(f);
+ 
+-    if (procargs.back() == EOF)
++    if (procargs.back() == (char) EOF)
+         procargs.pop_back();
+ 
+     auto argc = std::count(procargs.begin(), procargs.end(), '\0');
+--- a/libs/process/src/ext/env.cpp
++++ b/libs/process/src/ext/env.cpp
+@@ -127,7 +127,7 @@ native_env_iterator next(native_env_iterator nh)
+ }
+ native_env_iterator find_end(native_env_iterator nh)
+ {
+-    while (*nh != EOF)
++    while (*nh != (char) EOF)
+         nh ++;
+     return nh ;
+ }
+@@ -318,7 +318,7 @@ env_view env(boost::process::v2::pid_type pid, error_code & ec)
+ 
+     int f = ::open(("/proc/" + std::to_string(pid) + "/environ").c_str(), O_RDONLY);
+ 
+-    while (!procargs || procargs.get()[size - 1] != EOF)
++    while (!procargs || procargs.get()[size - 1] != (char) EOF)
+     {
+         std::unique_ptr<char, detail::ext::native_env_handle_deleter> buf{new char[size + 4096]};
+         if (size > 0)