From 196267cb827c5c1d7a62413b73e38d1bf3f42dbd Mon Sep 17 00:00:00 2001
From: David Roman <droman@ifae.es>
Date: Thu, 27 Feb 2025 16:32:14 +0100
Subject: [PATCH 1/2] cmake: use standard GNU install directories for docs

---
 CMakeLists.txt | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index fc046e1848..7d148f9cbc 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1743,7 +1743,7 @@ foreach(readme ${readme-docs})
   configure_file(${CMAKE_CURRENT_SOURCE_DIR}/${readme} ${CMAKE_CURRENT_BINARY_DIR}/${readme}.txt)
 
   if(NOT ZMQ_BUILD_FRAMEWORK)
-    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${readme}.txt DESTINATION share/zmq)
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${readme}.txt DESTINATION ${CMAKE_INSTALL_DOCDIR})
   endif()
 endforeach()
 
@@ -1751,7 +1751,7 @@ if(WITH_DOC)
   if(NOT ZMQ_BUILD_FRAMEWORK)
     install(
       FILES ${html-docs}
-      DESTINATION doc/zmq
+      DESTINATION ${CMAKE_INSTALL_DOCDIR}
       COMPONENT RefGuide)
   endif()
 endif()

From 5dc11bef7e65bc13e6714fbb7027961737b32e1b Mon Sep 17 00:00:00 2001
From: David Roman <droman@ifae.es>
Date: Mon, 2 Feb 2026 10:58:04 +0100
Subject: [PATCH 2/2] cmake: set default visibility to "hidden"

Currently autotools build uses -fvisibility=hidden, but cmake does not.
This creates a huge ABI difference between the libzmq.so when compiled
with cmake vs autotools. With this patch the difference between the
exported functions is minimum.
---
 CMakeLists.txt | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7d148f9cbc..be1acb42fe 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -6,6 +6,8 @@ else()
   cmake_minimum_required(VERSION 2.8.12...3.31)
 endif()
 
+set(CMAKE_CXX_VISIBILITY_PRESET hidden)
+
 project(ZeroMQ)
 
 include(CheckIncludeFiles)