From: Gunnar Beutner <gunnar@beutner.name>
Date: Mon, 9 Mar 2015 08:49:55 +0000 (+0100)
Subject: Add -fvisibility-inlines-hidden to the C/CXX flags when available
X-Git-Tag: v2.3.0~4
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=f485424f7f8bb781ae3556684d763d0e7730f84a;p=icinga2

Add -fvisibility-inlines-hidden to the C/CXX flags when available
---

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0f32aeefc..1ef5d5733 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -147,6 +147,15 @@ if(ICINGA2_LTO_BUILD)
   set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -flto")
 endif()
 
+include(CheckCCompilerFlag)
+
+check_c_compiler_flag(-fvisibility-inlines-hidden HAVE_VISIBILITY_INLINES_HIDDEN)
+
+if(HAVE_VISIBILITY_INLINES_HIDDEN)
+  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fvisibility-inlines-hidden")
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fvisibility-inlines-hidden")
+endif()
+
 if(MSVC)
   add_definitions(-D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE -D_SCL_SECURE_NO_WARNINGS)
 endif()