--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/acinclude.m4	Tue Jun 03 10:23:04 2003 +0000
@@ -0,0 +1,167 @@
+dnl Some handy functions
+
+dnl Try a list of directories, set the first one found
+dnl Usage: AC_CHECK_DIRS(DIRECTORY..., ACTION-IF-FOUND, ACTION-IF-NOT-FOUND)
+
+AC_DEFUN(AC_CHECK_DIRS,
+[
+for ac_dir in $1
+do
+AC_MSG_CHECKING([for directory ${ac_dir}])
+if test -d ${ac_dir}
+then
+  AC_MSG_RESULT(yes)
+  ifelse([$2], , :, [$2])
+  break
+else
+  AC_MSG_RESULT(no)
+fi
+done
+if test ! -d ${ac_dir}
+then
+  ifelse([$3], , :, [$3])
+fi
+])
+
+# sidplay.m4  sidplay checks
+
+AC_DEFUN(AC_FIND_FILE,
+    [
+	$3=NO
+	for i in $2;
+	do
+	  for j in $1;
+	  do
+	    if test -r "$i/$j"; then
+		  $3=$i
+		  break 2
+		fi
+	  done
+	done
+    ]
+)
+
+AC_DEFUN(AC_PATH_LIBSIDPLAY,
+[
+AC_MSG_CHECKING([for SIDPLAY includes and library])
+AC_LANG_SAVE
+AC_LANG_CPLUSPLUS
+ac_sidplay_cflags=NO
+ac_sidplay_library=NO
+sidplay_cflags=""
+sidplay_library=""
+
+AC_ARG_WITH(sidplay-prefix,
+  [  --with-sidplay-prefix=DIR
+                          where the sidplay includes and library are located],
+  [ac_sidplay_cflags="${withval}/include"
+   ac_sidplay_library="${withval}/lib"
+  ])
+
+AC_ARG_WITH(sidplay-includes,
+  [  --with-sidplay-includes=DIR
+                          where the sidplay includes are located],
+  [ac_sidplay_cflags="$withval"
+  ])
+
+AC_ARG_WITH(sidplay-library,
+  [  --with-sidplay-library=DIR
+                          where the sidplay library is installed],
+  [ac_sidplay_library="$withval"
+  ])
+
+if test "$ac_sidplay_cflags" = NO || test "$ac_sidplay_library" = NO; then
+#search common locations
+
+AC_CACHE_VAL(ac_cv_have_sidplay,
+[
+sidplay_incdirs="$ac_sidplay_cflags /usr/include /usr/local/include /usr/lib/sidplay/include /usr/local/lib/sidplay/include"
+AC_FIND_FILE(sidplay/sidtune.h,$sidplay_incdirs,sidplay_foundincdir)
+ac_sidplay_cflags=$sidplay_foundincdir
+
+sidplay_libdirs="$ac_sidplay_library /usr/lib /usr/local/lib /usr/lib/sidplay /usr/local/lib/sidplay"
+AC_FIND_FILE(libsidplay.so libsidplay.so.1 libsidplay.so.1.36 libsidplay.so.1.37,$sidplay_libdirs,sidplay_foundlibdir)
+ac_sidplay_library=$sidplay_foundlibdir
+
+if test "$ac_sidplay_cflags" = NO || test "$ac_sidplay_library" = NO; then
+  ac_cv_have_sidplay="have_sidplay=no"
+  ac_sidplay_notfound=""
+  if test "$ac_sidplay_cflags" = NO; then
+    if test "$ac_sidplay_library" = NO; then
+      ac_sidplay_notfound="(headers and library)";
+    else
+      ac_sidplay_notfound="(headers)";
+    fi
+  else
+    ac_sidplay_notfound="(library)";
+  fi
+  eval "$ac_cv_have_sidplay"
+  AC_MSG_RESULT([$have_sidplay])
+else
+  have_sidplay=yes
+fi
+
+])  dnl AC_CACHE_VAL(ac_cv_have_sidplay,
+else
+  have_sidplay=yes
+fi  dnl if (have_to_search)
+
+eval "$ac_cv_have_sidplay"
+
+if test "$have_sidplay" != yes; then
+  AC_MSG_RESULT([$have_sidplay]);
+else
+  ac_cv_have_sidplay="have_sidplay=yes \
+    ac_sidplay_cflags=$ac_sidplay_cflags ac_sidplay_library=$ac_sidplay_library"
+  AC_MSG_RESULT([library $ac_sidplay_library, headers $ac_sidplay_cflags])
+  
+  sidplay_library=$ac_sidplay_library
+  sidplay_cflags=$ac_sidplay_cflags
+  
+  SIDPLAY_LIBS="-L$sidplay_library -lsidplay"
+  all_libraries="$SIDPLAY_LIBS $all_libraries"
+  SIDPLAY_CFLAGS="-I$sidplay_cflags"
+  all_includes="$SIDPLAY_CFLAGS $all_includes"
+fi
+
+dnl Test compilation.
+
+AC_MSG_CHECKING([whether -lsidplay works])
+ac_cxxflags_safe=$CXXFLAGS
+ac_ldflags_safe=$LDFLAGS
+ac_libs_safe=$LIBS
+
+CXXFLAGS="$CXXFLAGS -I$sidplay_cflags"
+LDFLAGS="$LDFLAGS -L$sidplay_library"
+LIBS="-lsidplay"
+
+AC_CACHE_VAL(ac_cv_sidplay_works,
+[
+    AC_TRY_LINK(
+	    [#include <sidplay/sidtune.h>],
+		[sidTune* myTest;],
+		[ac_cv_sidplay_works=yes],
+		[ac_cv_sidplay_works=no]
+   )
+])
+
+CXXFLAGS="$ac_cxxflags_safe"
+LDFLAGS="$ac_ldflags_safe"
+LIBS="$ac_libs_safe"
+
+AC_MSG_RESULT([$ac_cv_sidplay_works])
+if test "$ac_cv_sidplay_works" != yes; then
+  have_sidplay=no
+fi
+
+dnl
+
+AC_SUBST(SIDPLAY_CFLAGS)
+AC_SUBST(SIDPLAY_LIBS)
+
+AC_SUBST(sidplay_library)
+AC_SUBST(sidplay_cflags)
+
+AC_LANG_RESTORE
+
+])