From f9ac94b1f1c7b8416cf6f24e4e0a890ddcaa34f5 Mon Sep 17 00:00:00 2001
From: Clifford Yapp <238416+starseeker@users.noreply.github.com>
Date: Wed, 7 Dec 2022 11:35:10 -0500
Subject: [PATCH] Conditional PIC building for indirect_prediciates

Preliminary testing suggests that Position Independent Code will be
needed for a shared library version of IRMB, which propagates to the
indirect_predicates build. If CMAKE_POSITION_INDEPENDENT_CODE is active,
use an alternative approach to FetchContent_MakeAvailable that allows us
to specify this setting for the indirectPredicates target.
---
 arrangements/external/Cinolib/cinolib-config.cmake | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/arrangements/external/Cinolib/cinolib-config.cmake b/arrangements/external/Cinolib/cinolib-config.cmake
index 9efbeb3e..944fba40 100644
--- a/arrangements/external/Cinolib/cinolib-config.cmake
+++ b/arrangements/external/Cinolib/cinolib-config.cmake
@@ -87,7 +87,13 @@ endif()
 if(CINOLIB_USES_INDIRECT_PREDICATES)
     message("CINOLIB OPTIONAL MODULE: Indirect Predicates")
     FetchContent_Declare(indirect_predicates GIT_REPOSITORY "https://github.com/cinolib-dev-team/Indirect_Predicates.git")
-    FetchContent_MakeAvailable(indirect_predicates)
+    if(CMAKE_POSITION_INDEPENDENT_CODE)
+        FetchContent_Populate(indirect_predicates)
+        add_subdirectory(${indirect_predicates_SOURCE_DIR} ${indirect_predicates_BINARY_DIR})
+        set_property(TARGET indirectPredicates PROPERTY POSITION_INDEPENDENT_CODE ON)
+    else()
+        FetchContent_MakeAvailable(indirect_predicates)
+    endif()
     target_link_libraries(cinolib INTERFACE indirectPredicates)
     target_compile_definitions(cinolib INTERFACE CINOLIB_USES_INDIRECT_PREDICATES)
 endif()