feat: include .so into lib folder (linux)

Author: aymnms

CMakeLists.txt

@@ -101,7 +101,7 @@ if(APPLE)
 
 	# Chercher les libs à runtime dans Contents/Frameworks
 	set(CMAKE_MACOSX_RPATH ON)
-			set_target_properties(mario_isn PROPERTIES
+	set_target_properties(mario_isn PROPERTIES
 			BUILD_RPATH "@executable_path/../Frameworks"
 			INSTALL_RPATH "@executable_path/../Frameworks"
 	)
@@ -121,15 +121,15 @@ if(APPLE)
               $<TARGET_BUNDLE_CONTENT_DIR:mario_isn>/Resources/bin
   )
 
-	# --- Copie/réécriture des dylibs dans Contents/Frameworks via fixup_bundle ---
+	# --- Copie/réécriture des dylibs dans Contents/Frameworks via macos_fixup ---
 	add_custom_command(TARGET mario_isn POST_BUILD
 			COMMAND ${CMAKE_COMMAND} -E make_directory
 							$<TARGET_BUNDLE_CONTENT_DIR:mario_isn>/Frameworks
 			# On passe au script: l'app et une liste de dossiers où chercher les .dylib
 			COMMAND ${CMAKE_COMMAND}
 							-DAPP="$<TARGET_BUNDLE_DIR:mario_isn>"
 							-DSEARCH_DIRS="$<TARGET_FILE_DIR:SDL2::SDL2>;$<TARGET_FILE_DIR:SDL2_image::SDL2_image>;$<TARGET_FILE_DIR:SDL2_mixer::SDL2_mixer>;/opt/homebrew/lib;/opt/homebrew/opt"
-							-P "${CMAKE_SOURCE_DIR}/cmake/fixup_bundle.cmake"
+							-P "${CMAKE_SOURCE_DIR}/cmake/macos_fixup.cmake"
 	)
 
 	add_custom_command(TARGET mario_isn POST_BUILD
@@ -152,6 +152,12 @@ elseif(WIN32)
   )
 
 elseif(UNIX)
+	# --- RPATH: l’exe cherchera d’abord ses libs dans ./lib (relatif à l’exe) ---
+	set_target_properties(mario_isn PROPERTIES
+		BUILD_RPATH "\$ORIGIN/lib"
+		INSTALL_RPATH "\$ORIGIN/lib"
+	)
+
   # On Linux, copy assets next to the executable
   add_custom_command(TARGET mario_isn POST_BUILD
       COMMAND ${CMAKE_COMMAND} -E copy_directory
@@ -164,4 +170,20 @@ elseif(UNIX)
               ${CMAKE_SOURCE_DIR}/ressources/bin
               $<TARGET_FILE_DIR:mario_isn>/bin
   )
+
+	# --- Post-build : créer ./lib et copier les .so nécessaires ---
+	# Cas 1 : on a des cibles importées (CONFIG) -> on peut copier directement
+	if (TARGET SDL2::SDL2 AND TARGET SDL2_image::SDL2_image AND TARGET SDL2_mixer::SDL2_mixer)
+			add_custom_command(TARGET mario_isn POST_BUILD
+					COMMAND ${CMAKE_COMMAND} -E make_directory $<TARGET_FILE_DIR:mario_isn>/lib
+					COMMAND ${CMAKE_COMMAND} -E copy $<TARGET_FILE:SDL2::SDL2>             $<TARGET_FILE_DIR:mario_isn>/lib/ || true
+					COMMAND ${CMAKE_COMMAND} -E copy $<TARGET_FILE:SDL2_image::SDL2_image> $<TARGET_FILE_DIR:mario_isn>/lib/ || true
+					COMMAND ${CMAKE_COMMAND} -E copy $<TARGET_FILE:SDL2_mixer::SDL2_mixer> $<TARGET_FILE_DIR:mario_isn>/lib/ || true
+			)
+	else()
+		# Cas 2 : fallback pkg-config -> on scanne l’exe avec ldd et on copie les libs utiles
+			add_custom_command(TARGET mario_isn POST_BUILD
+					COMMAND ${CMAKE_COMMAND} -DAPP_DIR="$<TARGET_FILE_DIR:mario_isn>" -P "${CMAKE_SOURCE_DIR}/cmake/linux_fixup.cmake"
+			)
+	endif()
 endif()

cmake/linux_fixup.cmake

@@ -0,0 +1,32 @@
+# cmake/linux_fixup.cmake
+cmake_minimum_required(VERSION 3.20)
+
+if(NOT DEFINED APP_DIR)
+  message(FATAL_ERROR "linux_fixup: APP_DIR not set")
+endif()
+
+# Dossier de sortie des .so embarqués
+set(outdir "${APP_DIR}/lib")
+file(MAKE_DIRECTORY "${outdir}")
+
+# Exécutable principal
+set(exe "${APP_DIR}/mario_isn")
+
+# Liste de libs qu’on veut embarquer (SDL2 + deps image/son courantes)
+# Ajustable si besoin.
+set(regex "lib(SDL2(_image|_mixer)?|png|jpeg|jxl|webp|sharpyuv|tiff|ogg|vorbis|opus|FLAC)\\.so")
+
+# Utilise ldd pour trouver les .so résolus et copie ceux qui matchent
+# (on passe par /bin/sh pour utiliser grep/awk/xargs proprement)
+execute_process(
+  COMMAND /bin/sh -lc
+          "ldd \"${exe}\" \
+             | awk '/=>/ {print $3}' \
+             | grep -E '${regex}' \
+             | xargs -r -I{} cp -n {} \"${outdir}\""
+  RESULT_VARIABLE rc
+)
+
+if(NOT rc EQUAL 0)
+  message(WARNING "linux_fixup: ldd copy step returned ${rc}")
+endif()