From db6b2225b186e6254443e00bc04b43664bf96d39 Mon Sep 17 00:00:00 2001
From: Sadie Powell <sadie@witchery.services>
Date: Mon, 3 Jan 2022 23:42:12 +0000
Subject: [PATCH] Use GNU visibility attributes when on non-Windows.

This reduces binary sizes by several megabytes on my system.
---
 CMakeLists.txt     | 2 +-
 include/services.h | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index cfaa69efe..157d9fc36 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -188,7 +188,7 @@ if(MSVC)
 # Otherwise, we're not using Visual Studio
 else()
   # Set the compile flags to have all warnings on (including shadowed variables)
-  set(CXXFLAGS "${CXXFLAGS} -Wall -Wextra -Wpedantic -Wno-unused-parameter ${CMAKE_CXX_FLAGS}")
+  set(CXXFLAGS "${CXXFLAGS} -fvisibility=hidden -fvisibility-inlines-hidden -Wall -Wextra -Wpedantic -Wno-unused-parameter ${CMAKE_CXX_FLAGS}")
   # Also, if we are building under MinGW, add another define for MinGW
   if(MINGW)
     add_definitions(-DMINGW)
diff --git a/include/services.h b/include/services.h
index d6d98adcf..823aad8a3 100644
--- a/include/services.h
+++ b/include/services.h
@@ -51,8 +51,8 @@
 #define _(x) x
 
 #ifndef _WIN32
-# define DllExport
-# define CoreExport
+# define DllExport __attribute__ ((visibility ("default")))
+# define CoreExport __attribute__ ((visibility ("default")))
 # define anope_close close
 #else
 # include "anope_windows.h"