minor autotools build system updates.

configure

@@ -592,7 +592,7 @@ PACKAGE_STRING=
 PACKAGE_BUGREPORT=
 PACKAGE_URL=
 
-ac_unique_file="README.txt"
+ac_unique_file="src/SDL.c"
 # Factoring default headers for most tests.
 ac_includes_default="\
 #include <stdio.h>
@@ -26007,6 +26007,7 @@ fi
 
 
 
+
 
 cat >Makefile.rules <<__EOF__
 

configure.ac

@@ -1,6 +1,6 @@
 dnl Process this file with autoconf to produce a configure script.
 AC_INIT
-AC_CONFIG_SRCDIR(README.txt)
+AC_CONFIG_SRCDIR([src/SDL.c])
 AC_CONFIG_HEADERS(include/SDL_config.h)
 AC_CONFIG_AUX_DIR(build-scripts)
 AC_CONFIG_MACRO_DIR([acinclude])

test/configure

@@ -581,7 +581,7 @@ PACKAGE_STRING=
 PACKAGE_BUGREPORT=
 PACKAGE_URL=
 
-ac_unique_file="README"
+ac_unique_file="loopwave.c"
 ac_subst_vars='LTLIBOBJS
 LIBOBJS
 SDL_TTF_LIB

test/configure.ac

@@ -1,6 +1,6 @@
 dnl Process this file with autoconf to produce a configure script.
 AC_INIT
-AC_CONFIG_SRCDIR([README])
+AC_CONFIG_SRCDIR([loopwave.c])
 
 dnl Detect the canonical build and host environments
 AC_CONFIG_AUX_DIRS($srcdir/../build-scripts)