Make sdl2-config interpreter configurable

configure

@@ -727,6 +727,7 @@ ALSA_LIBS
 ALSA_CFLAGS
 ALLOCA
 CPP
+SDL2_CONFIG_INTERPRETER
 LIBTOOLLINKERTAG
 LINKER
 SORT
@@ -18337,6 +18338,18 @@ esac
 
 
 
+case "$host" in
+    # On Solaris, jack must be linked deferred explicitly
+    # to prevent undefined symbol failures.
+    *-*-solaris*)
+        SDL2_CONFIG_INTERPRETER=/bin/bash
+        ;;
+    *)
+        SDL2_CONFIG_INTERPRETER=/bin/sh
+        ;;
+esac
+
+
 if test x$srcdir != x.; then
     INCLUDE="-Iinclude $INCLUDE"
 elif test -d .git; then