From 69d9c04a2235649b76bfccd1e3446f35c412073c Mon Sep 17 00:00:00 2001
From: rofl0r <rofl0r@users.noreply.github.com>
Date: Mon, 28 Mar 2022 18:41:23 +0000
Subject: [PATCH] configure.ac: if linking -lSDL2 fails, try pkg-config

if SDL2 is a static library (like when using pspsdk), it may depend
on additional libraries that pkg-config can supply.
---
 configure.ac | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 69bb1c5..1b3a8d3 100644
--- a/configure.ac
+++ b/configure.ac
@@ -73,6 +73,8 @@ with_svgalib=no
 ])], [with_svgalib=no])
 fi
 
+test -z "$PKG_CONFIG" && PKG_CONFIG=pkg-config
+
 if test "$with_sdl2" != no ; then
 SDL2_LIBS=-lSDL2
 AC_CHECK_LIB(SDL2, SDL_Init, [
@@ -82,7 +84,15 @@ AC_CHECK_LIB(SDL2, SDL_Init, [
    AC_MSG_WARN(SDL2 found but headers are missing!!)
    with_sdl2=no
  ])
-], [with_sdl2=no], $SDL2_LIBS)
+], [
+  AC_MSG_WARN(testing pkg-config for SDL2)
+  if "$PKG_CONFIG" --libs sdl2 >/dev/null 2>&1 ; then
+    with_sdl2=yes
+    SDL2_LIBS=$("$PKG_CONFIG" --libs sdl2)
+  else
+    with_sdl2=no
+  fi
+], $SDL2_LIBS)
 fi
 
 if test "$with_sdl2" = "no" && test "$with_sdl" != "no" ; then
-- 
2.11.4.GIT