From 5ee2ebfb4fd8b6ac3ad41c4e8eec87cc0f50f186 Mon Sep 17 00:00:00 2001
From: WerWolv <werwolv98@gmail.com>
Date: Sun, 2 Feb 2025 20:32:24 +0100
Subject: [PATCH] build: Fix addXXXFlag functions for interface targets

---
 cmake/build_helpers.cmake | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/cmake/build_helpers.cmake b/cmake/build_helpers.cmake
index 14a4caed1..9cc5e3664 100644
--- a/cmake/build_helpers.cmake
+++ b/cmake/build_helpers.cmake
@@ -10,11 +10,21 @@ if (POLICY CMP0177)
     cmake_policy(SET CMP0177 OLD)
 endif()
 
+function(getTarget target type)
+    get_target_property(TARGET_TYPE ${target} TYPE)
+    if (${TARGET_TYPE} STREQUAL "INTERFACE_LIBRARY")
+        set(${type} INTERFACE PARENT_SCOPE)
+    else()
+        set(${type} PRIVATE PARENT_SCOPE)
+    endif()
+endfunction()
+
 function(addCFlag)
     if (ARGC EQUAL 1)
         add_compile_options($<$<COMPILE_LANGUAGE:C>:${ARGV0}>)
     elseif (ARGC EQUAL 2)
-        target_compile_options(${ARGV1} PRIVATE $<$<COMPILE_LANGUAGE:C>:${ARGV0}>)
+        getTarget(${ARGV1} TYPE)
+        target_compile_options(${ARGV1} ${TYPE} $<$<COMPILE_LANGUAGE:C>:${ARGV0}>)
     endif()
 endfunction()
 
@@ -22,7 +32,8 @@ function(addCXXFlag)
     if (ARGC EQUAL 1)
         add_compile_options($<$<COMPILE_LANGUAGE:CXX>:${ARGV0}>)
     elseif (ARGC EQUAL 2)
-        target_compile_options(${ARGV1} PRIVATE $<$<COMPILE_LANGUAGE:CXX>:${ARGV0}>)
+        getTarget(${ARGV1} TYPE)
+        target_compile_options(${ARGV1} ${TYPE} $<$<COMPILE_LANGUAGE:CXX>:${ARGV0}>)
     endif()
 endfunction()
 
@@ -30,7 +41,8 @@ function(addObjCFlag)
     if (ARGC EQUAL 1)
         add_compile_options($<$<COMPILE_LANGUAGE:OBJC>:${ARGV0}>)
     elseif (ARGC EQUAL 2)
-        target_compile_options(${ARGV1} PRIVATE $<$<COMPILE_LANGUAGE:OBJC>:${ARGV0}>)
+        getTarget(${ARGV1} TYPE)
+        target_compile_options(${ARGV1} ${TYPE} $<$<COMPILE_LANGUAGE:OBJC>:${ARGV0}>)
     endif()
 endfunction()