From 39df8929de6ff3cfb558aa68cb85ac90f90d7249 Mon Sep 17 00:00:00 2001
From: Paolo Bosetti <paolo.bosetti@unitn.it>
Date: Sun, 11 Aug 2024 17:40:38 +0200
Subject: [PATCH] Improved CMake PIC compile option management

---
 cmake/ftxui_set_options.cmake | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/cmake/ftxui_set_options.cmake b/cmake/ftxui_set_options.cmake
index 077afdf..6e5a8e0 100644
--- a/cmake/ftxui_set_options.cmake
+++ b/cmake/ftxui_set_options.cmake
@@ -49,9 +49,11 @@ function(ftxui_set_options library)
     target_compile_options(${library} PUBLIC "/utf-8")
   endif()
 
-  if(UNIX)
-    target_compile_options(${library} PRIVATE "-fPIC")
-  endif()
+  # CMake does automatically add -fPIC when linking a shared library, but it
+  # does not add it when linking a static library. This is a problem when the 
+  # static library is later linked into a shared library. 
+  # Doing it helps some users.
+  set_property(TARGET ${library} PROPERTY POSITION_INDEPENDENT_CODE ON)
 
   # Add as many warning as possible:
   if (WIN32)