From af7849b5797fcd39c3e3537d4ad07f4f28d32e27 Mon Sep 17 00:00:00 2001
From: akallabeth <akallabeth@posteo.net>
Date: Thu, 14 Nov 2024 12:40:12 +0100
Subject: [PATCH] [cmake] use relative paths for debug symbols

When not building a Debug configuration use relative paths for __FILE__
et al in the debug symbol entries
---
 cmake/CXXCompilerFlags.cmake | 12 ++++++++----
 cmake/CompilerFlags.cmake    | 12 ++++++++----
 2 files changed, 16 insertions(+), 8 deletions(-)

diff --git a/cmake/CXXCompilerFlags.cmake b/cmake/CXXCompilerFlags.cmake
index b288f8450..124b0ffdb 100644
--- a/cmake/CXXCompilerFlags.cmake
+++ b/cmake/CXXCompilerFlags.cmake
@@ -64,10 +64,14 @@ endif()
 
 CheckCXXFlag(-fno-omit-frame-pointer)
 
-CheckCXXFlag(-fmacro-prefix-map="${CMAKE_SOURCE_DIR}"="./")
-CheckCXXFlag(-fmacro-prefix-map="${CMAKE_BINARY_DIR}"="./build/")
-CheckCXXFlag(-ffile-prefix-map="${CMAKE_SOURCE_DIR}"="./")
-CheckCXXFlag(-ffile-prefix-map="${CMAKE_BINARY_DIR}"="./build")
+if (CMAKE_CXX_COMPILER_ID MATCHES "Clang" OR CMAKE_CXX_COMPILER_ID MATCHES "GNU")
+		add_compile_options($<$<NOT:$<CONFIG:Debug>>:-fdebug-prefix-map=${CMAKE_SOURCE_DIR}=.>)
+		add_compile_options($<$<NOT:$<CONFIG:Debug>>:-fmacro-prefix-map=${CMAKE_SOURCE_DIR}=.>)
+		add_compile_options($<$<NOT:$<CONFIG:Debug>>:-ffile-prefix-map=${CMAKE_SOURCE_DIR}=.>)
+		add_compile_options($<$<NOT:$<CONFIG:Debug>>:-fdebug-prefix-map=${CMAKE_BINARY_DIR}=./build>)
+		add_compile_options($<$<NOT:$<CONFIG:Debug>>:-fmacro-prefix-map=${CMAKE_BINARY_DIR}=./build>)
+		add_compile_options($<$<NOT:$<CONFIG:Debug>>:-ffile-prefix-map=${CMAKE_BINARY_DIR}=./build>)
+endif()
 
 # https://stackoverflow.com/questions/4913922/possible-problems-with-nominmax-on-visual-c
 if (WIN32)
diff --git a/cmake/CompilerFlags.cmake b/cmake/CompilerFlags.cmake
index f48beb50b..c9190e3e3 100644
--- a/cmake/CompilerFlags.cmake
+++ b/cmake/CompilerFlags.cmake
@@ -64,10 +64,14 @@ endif()
 
 CheckCFlag(-fno-omit-frame-pointer)
 
-CheckCFlag(-fmacro-prefix-map="${CMAKE_SOURCE_DIR}"="./")
-CheckCFlag(-fmacro-prefix-map="${CMAKE_BINARY_DIR}"="./build/")
-CheckCFlag(-ffile-prefix-map="${CMAKE_SOURCE_DIR}"="./")
-CheckCFlag(-ffile-prefix-map="${CMAKE_BINARY_DIR}"="./build")
+if (CMAKE_C_COMPILER_ID MATCHES "Clang" OR CMAKE_C_COMPILER_ID MATCHES "GNU")
+		add_compile_options($<$<NOT:$<CONFIG:Debug>>:-fdebug-prefix-map=${CMAKE_SOURCE_DIR}=.>)
+		add_compile_options($<$<NOT:$<CONFIG:Debug>>:-fmacro-prefix-map=${CMAKE_SOURCE_DIR}=.>)
+		add_compile_options($<$<NOT:$<CONFIG:Debug>>:-ffile-prefix-map=${CMAKE_SOURCE_DIR}=.>)
+		add_compile_options($<$<NOT:$<CONFIG:Debug>>:-fdebug-prefix-map=${CMAKE_BINARY_DIR}=./build>)
+		add_compile_options($<$<NOT:$<CONFIG:Debug>>:-fmacro-prefix-map=${CMAKE_BINARY_DIR}=./build>)
+		add_compile_options($<$<NOT:$<CONFIG:Debug>>:-ffile-prefix-map=${CMAKE_BINARY_DIR}=./build>)
+endif()
 
 set(CMAKE_C_FLAGS ${CMAKE_C_FLAGS} CACHE STRING "default CFLAGS")
 message("Using CFLAGS ${CMAKE_C_FLAGS}")