SDL: cmake: use pkg-config's library dirs as hint for finding a shared library (21425)

From 214258660f2298036c9287098dcda3dd51372fc6 Mon Sep 17 00:00:00 2001
From: Anonymous Maarten <[EMAIL REDACTED]>
Date: Thu, 20 Oct 2022 01:11:39 +0200
Subject: [PATCH] cmake: use pkg-config's library dirs as hint for finding a
 shared library

(cherry-picked from commit 11d53c84a7663d5a5861f3672990ca4b32376e3e)
---
 cmake/sdlchecks.cmake | 81 ++++++++++++++++++++++---------------------
 1 file changed, 42 insertions(+), 39 deletions(-)

diff --git a/cmake/sdlchecks.cmake b/cmake/sdlchecks.cmake
index 8b7eb03a6f75..2b62e413568b 100644
--- a/cmake/sdlchecks.cmake
+++ b/cmake/sdlchecks.cmake
@@ -1,8 +1,11 @@
+include(CMakeParseArguments)
 macro(FindLibraryAndSONAME _LIB)
+  cmake_parse_arguments(FLAS "" "" "LIBDIRS" ${ARGN})
+
   string(TOUPPER ${_LIB} _UPPERLNAME)
   string(REGEX REPLACE "\\-" "_" _LNAME "${_UPPERLNAME}")
 
-  find_library(${_LNAME}_LIB ${_LIB})
+  find_library(${_LNAME}_LIB ${_LIB} PATHS ${FLAS_LIBDIRS})
   if(${_LNAME}_LIB)
     # reduce the library name for shared linking
 
@@ -131,7 +134,7 @@ macro(CheckPipewire)
             if(SDL_PIPEWIRE_SHARED AND NOT HAVE_SDL_LOADSO)
                 message_warn("You must have SDL_LoadObject() support for dynamic Pipewire loading")
             endif()
-            FindLibraryAndSONAME("pipewire-0.3")
+            FindLibraryAndSONAME("pipewire-0.3" LIBDIRS ${PKG_PIPEWIRE_LIBRARY_DIRS})
             if(SDL_PIPEWIRE_SHARED AND PIPEWIRE_0.3_LIB AND HAVE_SDL_LOADSO)
                 set(SDL_AUDIO_DRIVER_PIPEWIRE_DYNAMIC "\"${PIPEWIRE_0.3_LIB_SONAME}\"")
                 set(HAVE_PIPEWIRE_SHARED TRUE)
@@ -160,7 +163,7 @@ macro(CheckPulseAudio)
       if(SDL_PULSEAUDIO_SHARED AND NOT HAVE_SDL_LOADSO)
         message_warn("You must have SDL_LoadObject() support for dynamic PulseAudio loading")
       endif()
-      FindLibraryAndSONAME("pulse-simple")
+      FindLibraryAndSONAME("pulse-simple" LIBDIRS ${PKG_PULSEAUDIO_LIBRARY_DIRS})
       if(SDL_PULSEAUDIO_SHARED AND PULSE_SIMPLE_LIB AND HAVE_SDL_LOADSO)
         set(SDL_AUDIO_DRIVER_PULSEAUDIO_DYNAMIC "\"${PULSE_SIMPLE_LIB_SONAME}\"")
         set(HAVE_PULSEAUDIO_SHARED TRUE)
@@ -189,7 +192,7 @@ macro(CheckJACK)
       if(SDL_JACK_SHARED AND NOT HAVE_SDL_LOADSO)
         message_warn("You must have SDL_LoadObject() support for dynamic JACK audio loading")
       endif()
-      FindLibraryAndSONAME("jack")
+      FindLibraryAndSONAME("jack" LIBDIRS ${PKG_JACK_LIBRARY_DIRS})
       if(SDL_JACK_SHARED AND JACK_LIB AND HAVE_SDL_LOADSO)
         set(SDL_AUDIO_DRIVER_JACK_DYNAMIC "\"${JACK_LIB_SONAME}\"")
         set(HAVE_JACK_SHARED TRUE)
@@ -218,7 +221,7 @@ macro(CheckESD)
       if(SDL_ESD_SHARED AND NOT HAVE_SDL_LOADSO)
           message_warn("You must have SDL_LoadObject() support for dynamic ESD loading")
       endif()
-      FindLibraryAndSONAME(esd)
+      FindLibraryAndSONAME(esd LIBDIRS ${PKG_ESD_LIBRARY_DIRS})
       if(SDL_ESD_SHARED AND ESD_LIB AND HAVE_SDL_LOADSO)
           set(SDL_AUDIO_DRIVER_ESD_DYNAMIC "\"${ESD_LIB_SONAME}\"")
           set(HAVE_ESD_SHARED TRUE)
@@ -312,7 +315,7 @@ macro(CheckSNDIO)
       if(SDL_SNDIO_SHARED AND NOT HAVE_SDL_LOADSO)
         message_warn("You must have SDL_LoadObject() support for dynamic sndio loading")
       endif()
-      FindLibraryAndSONAME("sndio")
+      FindLibraryAndSONAME("sndio" LIBDIRS ${PKG_SNDIO_LIBRARY_DIRS})
       if(SDL_SNDIO_SHARED AND SNDIO_LIB AND HAVE_SDL_LOADSO)
         set(SDL_AUDIO_DRIVER_SNDIO_DYNAMIC "\"${SNDIO_LIB_SONAME}\"")
         set(HAVE_SNDIO_SHARED TRUE)
@@ -341,7 +344,7 @@ macro(CheckFusionSound)
       if(FUSIONSOUND_SHARED AND NOT HAVE_SDL_LOADSO)
         message_warn("You must have SDL_LoadObject() support for dynamic FusionSound loading")
       endif()
-      FindLibraryAndSONAME("fusionsound")
+      FindLibraryAndSONAME("fusionsound" LIBDIRS ${PKG_FUSIONSOUND_LIBRARY_DIRS})
       if(FUSIONSOUND_SHARED AND FUSIONSOUND_LIB AND HAVE_SDL_LOADSO)
         set(SDL_AUDIO_DRIVER_FUSIONSOUND_DYNAMIC "\"${FUSIONSOUND_LIB_SONAME}\"")
         set(HAVE_FUSIONSOUND_SHARED TRUE)
@@ -637,9 +640,11 @@ endmacro()
 # - HAVE_SDL_LOADSO opt
 macro(CheckWayland)
   if(SDL_WAYLAND)
-    pkg_check_modules(WAYLAND "wayland-client>=1.18" wayland-egl wayland-cursor egl "xkbcommon>=0.5.0")
+    set(WAYLAND_FOUND FALSE)
+    pkg_check_modules(PKG_WAYLAND "wayland-client>=1.18" wayland-egl wayland-cursor egl "xkbcommon>=0.5.0")
 
-    if(WAYLAND_FOUND)
+    if(PKG_WAYLAND_FOUND)
+      set(WAYLAND_FOUND TRUE)
       find_program(WAYLAND_SCANNER NAMES wayland-scanner REQUIRED)
       execute_process(
         COMMAND ${WAYLAND_SCANNER} --version
@@ -662,8 +667,8 @@ macro(CheckWayland)
     endif()
 
     if(WAYLAND_FOUND)
-      target_link_directories(sdl-build-options INTERFACE "${WAYLAND_LIBRARY_DIRS}")
-      target_include_directories(sdl-build-options INTERFACE "${WAYLAND_INCLUDE_DIRS}")
+      target_link_directories(sdl-build-options INTERFACE "${PKG_WAYLAND_LIBRARY_DIRS}")
+      target_include_directories(sdl-build-options INTERFACE "${PKG_WAYLAND_INCLUDE_DIRS}")
 
       set(HAVE_WAYLAND TRUE)
       set(HAVE_SDL_VIDEO TRUE)
@@ -689,10 +694,10 @@ macro(CheckWayland)
       if(SDL_WAYLAND_SHARED AND NOT HAVE_SDL_LOADSO)
         message_warn("You must have SDL_LoadObject() support for dynamic Wayland loading")
       endif()
-      FindLibraryAndSONAME(wayland-client)
-      FindLibraryAndSONAME(wayland-egl)
-      FindLibraryAndSONAME(wayland-cursor)
-      FindLibraryAndSONAME(xkbcommon)
+      FindLibraryAndSONAME(wayland-client LIBDIRS ${PKG_WAYLAND_LIBRARY_DIRS})
+      FindLibraryAndSONAME(wayland-egl LIBDIRS ${PKG_WAYLAND_LIBRARY_DIRS})
+      FindLibraryAndSONAME(wayland-cursor LIBDIRS ${PKG_WAYLAND_LIBRARY_DIRS})
+      FindLibraryAndSONAME(xkbcommon LIBDIRS ${PKG_WAYLAND_LIBRARY_DIRS})
       if(SDL_WAYLAND_SHARED AND WAYLAND_CLIENT_LIB AND WAYLAND_EGL_LIB AND WAYLAND_CURSOR_LIB AND XKBCOMMON_LIB AND HAVE_SDL_LOADSO)
         set(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC "\"${WAYLAND_CLIENT_LIB_SONAME}\"")
         set(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_EGL "\"${WAYLAND_EGL_LIB_SONAME}\"")
@@ -700,25 +705,25 @@ macro(CheckWayland)
         set(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_XKBCOMMON "\"${XKBCOMMON_LIB_SONAME}\"")
         set(HAVE_WAYLAND_SHARED TRUE)
       else()
-        list(APPEND EXTRA_LIBS ${WAYLAND_LIBRARIES})
+        list(APPEND EXTRA_LIBS ${PKG_WAYLAND_LIBRARIES})
       endif()
 
       if(SDL_WAYLAND_LIBDECOR)
-        pkg_check_modules(LIBDECOR libdecor-0)
-        if(LIBDECOR_FOUND)
+        pkg_check_modules(PKG_LIBDECOR libdecor-0)
+        if(PKG_LIBDECOR)
             set(HAVE_WAYLAND_LIBDECOR TRUE)
             set(HAVE_LIBDECOR_H 1)
-            target_link_directories(sdl-build-options INTERFACE "${LIBDECOR_LIBRARY_DIRS}")
-            target_include_directories(sdl-build-options INTERFACE "${LIBDECOR_INCLUDE_DIRS}")
+            target_link_directories(sdl-build-options INTERFACE "${PKG_LIBDECOR_LIBRARY_DIRS}")
+            target_include_directories(sdl-build-options INTERFACE "${PKG_LIBDECOR_INCLUDE_DIRS}")
             if(SDL_WAYLAND_LIBDECOR_SHARED AND NOT HAVE_SDL_LOADSO)
                 message_warn("You must have SDL_LoadObject() support for dynamic libdecor loading")
             endif()
-            FindLibraryAndSONAME(decor-0)
+            FindLibraryAndSONAME(decor-0 LIBDIRS ${PKG_LIBDECOR_LIBRARY_DIRS})
             if(SDL_WAYLAND_LIBDECOR_SHARED AND DECOR_0_LIB AND HAVE_SDL_LOADSO)
                 set(HAVE_LIBDECOR_SHARED TRUE)
                 set(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_LIBDECOR "\"${DECOR_0_LIB_SONAME}\"")
             else()
-              list(APPEND EXTRA_LIBS ${LIBDECOR_LIBRARIES})
+              list(APPEND EXTRA_LIBS ${PKG_LIBDECOR_LIBRARIES})
             endif()
         endif()
       endif()
@@ -764,7 +769,7 @@ macro(CheckDirectFB)
       if(SDL_DIRECTFB_SHARED AND NOT HAVE_SDL_LOADSO)
         message_warn("You must have SDL_LoadObject() support for dynamic DirectFB loading")
       endif()
-      FindLibraryAndSONAME("directfb")
+      FindLibraryAndSONAME("directfb" LIBDIRS ${PKG_DIRECTFB_LIBRARY_DIRS})
       if(SDL_DIRECTFB_SHARED AND DIRECTFB_LIB AND HAVE_SDL_LOADSO)
         set(SDL_VIDEO_DRIVER_DIRECTFB_DYNAMIC "\"${DIRECTFB_LIB_SONAME}\"")
         set(HAVE_DIRECTFB_SHARED TRUE)
@@ -1170,19 +1175,19 @@ macro(CheckHIDAPI)
   if(SDL_HIDAPI)
     if(SDL_HIDAPI_LIBUSB)
       set(HAVE_LIBUSB FALSE)
-      pkg_check_modules(LIBUSB libusb-1.0)
-      if(LIBUSB_FOUND)
-        check_include_file(libusb.h HAVE_LIBUSB_H ${LIBUSB_CFLAGS})
+      pkg_check_modules(PKG_LIBUSB libusb-1.0)
+      if(PKG_LIBUSB_FOUND)
+        check_include_file(libusb.h HAVE_LIBUSB_H ${PKG_LIBUSB_CFLAGS})
         if(HAVE_LIBUSB_H)
           set(HAVE_LIBUSB TRUE)
-          set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${LIBUSB_CFLAGS}")
+          set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${PKG_LIBUSB_CFLAGS}")
           if(HIDAPI_ONLY_LIBUSB)
-            list(APPEND EXTRA_LIBS ${LIBUSB_LIBRARIES})
+            list(APPEND EXTRA_LIBS ${PKG_LIBUSB_LIBRARIES})
           elseif(OS2)
             set(SDL_LIBUSB_DYNAMIC "\"usb100.dll\"")
           else()
             # libusb is loaded dynamically, so don't add it to EXTRA_LIBS
-            FindLibraryAndSONAME("usb-1.0")
+            FindLibraryAndSONAME("usb-1.0" LIBDIRS ${PKG_LIBUSB_LIBRARY_DIRS})
             if(USB_1.0_LIB)
               set(SDL_LIBUSB_DYNAMIC "\"${USB_1.0_LIB_SONAME}\"")
             endif()
@@ -1268,19 +1273,17 @@ endmacro()
 # - HAVE_SDL_LOADSO opt
 macro(CheckKMSDRM)
   if(SDL_KMSDRM)
-    pkg_check_modules(KMSDRM libdrm gbm egl)
-    if(KMSDRM_FOUND AND HAVE_OPENGL_EGL)
-      link_directories(
-        ${KMSDRM_LIBRARY_DIRS}
-      )
-      target_include_directories(sdl-build-options INTERFACE "${KMSDRM_INCLUDE_DIRS}")
+    pkg_check_modules(PKG_KMSDRM libdrm gbm egl)
+    if(PKG_KMSDRM_FOUND AND HAVE_OPENGL_EGL)
+      target_link_directories(sdl-build-options INTERFACE ${PKG_KMSDRM_LIBRARY_DIRS})
+      target_include_directories(sdl-build-options INTERFACE "${PKG_KMSDRM_INCLUDE_DIRS}")
       set(HAVE_KMSDRM TRUE)
       set(HAVE_SDL_VIDEO TRUE)
 
       file(GLOB KMSDRM_SOURCES ${SDL2_SOURCE_DIR}/src/video/kmsdrm/*.c)
       list(APPEND SOURCE_FILES ${KMSDRM_SOURCES})
 
-      list(APPEND EXTRA_CFLAGS ${KMSDRM_CFLAGS})
+      list(APPEND EXTRA_CFLAGS ${PKG_KMSDRM_CFLAGS})
 
       set(SDL_VIDEO_DRIVER_KMSDRM 1)
 
@@ -1288,13 +1291,13 @@ macro(CheckKMSDRM)
         message_warn("You must have SDL_LoadObject() support for dynamic KMS/DRM loading")
       endif()
       if(SDL_KMSDRM_SHARED AND HAVE_SDL_LOADSO)
-        FindLibraryAndSONAME(drm)
-        FindLibraryAndSONAME(gbm)
+        FindLibraryAndSONAME(drm LIBDIRS ${PKG_KMSDRM_LIBRARY_DIRS})
+        FindLibraryAndSONAME(gbm LIBDIRS ${PKG_KMSDRM_LIBRARY_DIRS})
         set(SDL_VIDEO_DRIVER_KMSDRM_DYNAMIC "\"${DRM_LIB_SONAME}\"")
         set(SDL_VIDEO_DRIVER_KMSDRM_DYNAMIC_GBM "\"${GBM_LIB_SONAME}\"")
         set(HAVE_KMSDRM_SHARED TRUE)
       else()
-        list(APPEND EXTRA_LIBS ${KMSDRM_LIBRARIES})
+        list(APPEND EXTRA_LIBS ${PKG_KMSDRM_LIBRARIES})
       endif()
     endif()
   endif()