From 0033826544c8905883283e5193cb5cdaed9c80c8 Mon Sep 17 00:00:00 2001
From: Mitchell Richters <mjr4077au@gmail.com>
Date: Sat, 12 Nov 2022 11:26:05 +1100
Subject: [PATCH] - Allow proper setting of `progdir` for SDL targets.

---
 CMakeLists.txt                              | 2 +-
 source/CMakeLists.txt                       | 6 ++++++
 source/common/platform/posix/sdl/i_main.cpp | 5 ++++-
 3 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 910a7b94e..3bc1daa03 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -99,7 +99,7 @@ function( add_pk3 PK3_NAME PK3_DIR )
 	if( WIN32 )
 		set( INSTALL_PK3_PATH . CACHE STRING "Directory where engine data will be placed during install." )
 	else()
-		set( INSTALL_PK3_PATH share/games/raze CACHE STRING "Directory where engine data will be placed during install." )
+		set( INSTALL_PK3_PATH ${CMAKE_INSTALL_DATAROOTDIR}/${PROJECT_NAME} CACHE STRING "Directory where engine data will be placed during install." )
 	endif()
 	install(FILES "${PROJECT_BINARY_DIR}/${PK3_NAME}"
 			DESTINATION ${INSTALL_PK3_PATH}
diff --git a/source/CMakeLists.txt b/source/CMakeLists.txt
index 040a7c92b..8e39ae861 100644
--- a/source/CMakeLists.txt
+++ b/source/CMakeLists.txt
@@ -503,9 +503,15 @@ elseif( APPLE )
 	set_source_files_properties( platform/posix/osx/${PROJECT_NAME}.icns PROPERTIES MACOSX_PACKAGE_LOCATION Resources )
 	set_source_files_properties( common/platform/posix/osx/iwadpicker_cocoa.mm PROPERTIES COMPILE_FLAGS -fobjc-exceptions )
 else()
+	option (SYSTEMINSTALL "Set global progdir based on CMake Install Dir" OFF)
+
 	set( SYSTEM_SOURCES_DIR common/platform/posix common/platform/posix/sdl )
 	set( SYSTEM_SOURCES ${PLAT_POSIX_SOURCES} ${PLAT_SDL_SOURCES} ${PLAT_UNIX_SOURCES} )
 	set( OTHER_SYSTEM_SOURCES ${PLAT_WIN32_SOURCES} ${PLAT_OSX_SOURCES} ${PLAT_COCOA_SOURCES} )
+
+	if ( SYSTEMINSTALL )
+		add_definitions( -DPROGDIR="${CMAKE_INSTALL_PREFIX}/${INSTALL_PK3_PATH}" )
+	endif()
 endif()
 
 if( HAVE_MMX )
diff --git a/source/common/platform/posix/sdl/i_main.cpp b/source/common/platform/posix/sdl/i_main.cpp
index a28b90f01..196504b54 100644
--- a/source/common/platform/posix/sdl/i_main.cpp
+++ b/source/common/platform/posix/sdl/i_main.cpp
@@ -174,7 +174,9 @@ int main (int argc, char **argv)
 
 	Args = new FArgs(argc, argv);
 
-	// Should we even be doing anything with progdir on Unix systems?
+#ifdef PROGDIR
+	progdir = PROGDIR;
+#else
 	char program[PATH_MAX];
 	if (realpath (argv[0], program) == NULL)
 		strcpy (program, argv[0]);
@@ -188,6 +190,7 @@ int main (int argc, char **argv)
 	{
 		progdir = "./";
 	}
+#endif
 
 	I_StartupJoysticks();