SDL_rtf: revised windows resource dependency and windres detection. (3be1a)

From 3be1a7303c16085d8a3f849bbd0cf4547d1129f7 Mon Sep 17 00:00:00 2001
From: Ozkan Sezer <[EMAIL REDACTED]>
Date: Sun, 1 May 2022 23:33:02 +0300
Subject: [PATCH] revised windows resource dependency and windres detection.

---
 Makefile.am  |  13 +-
 Makefile.in  |  21 ++-
 configure    | 384 +++++++++++++++++++++++++++++++++++++++++++++++----
 configure.ac |  14 +-
 4 files changed, 374 insertions(+), 58 deletions(-)

diff --git a/Makefile.am b/Makefile.am
index 7f21f47..92b5ac6 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -25,21 +25,16 @@ EXTRA_DIST = CHANGES.txt COPYING.txt README.txt \
 	autogen.sh gcc-fat.sh
 
 
-if USE_VERSION_RC
-libSDL2_rtf_la_LDFLAGS = 	\
-	-no-undefined		\
-	-release $(LT_RELEASE)	\
-	-version-info $(LT_CURRENT):$(LT_REVISION):$(LT_AGE) -Wl,version.o
-libSDL2_rtf_la_DEPENDENCIES = version.o
-else
 libSDL2_rtf_la_LDFLAGS = 	\
 	-no-undefined		\
 	-release $(LT_RELEASE)	\
 	-version-info $(LT_CURRENT):$(LT_REVISION):$(LT_AGE) $(LT_EXTRA)
+if USE_VERSION_RC
+libSDL2_rtf_la_DEPENDENCIES = version.o
 endif
 
-%.o : %.rc
-	$(WINDRES) $< $@
+.rc.o:
+	$(RC) $< $@
 
 if HAVE_SDL_TTF
 EXAMPLES = showrtf
diff --git a/Makefile.in b/Makefile.in
index 0774d7c..c6aab97 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -318,6 +318,7 @@ PKG_CONFIG = @PKG_CONFIG@
 PKG_CONFIG_LIBDIR = @PKG_CONFIG_LIBDIR@
 PKG_CONFIG_PATH = @PKG_CONFIG_PATH@
 RANLIB = @RANLIB@
+RC = @RC@
 SDL2_CONFIG = @SDL2_CONFIG@
 SDLTTF_CFLAGS = @SDLTTF_CFLAGS@
 SDLTTF_LIBS = @SDLTTF_LIBS@
@@ -328,7 +329,6 @@ SET_MAKE = @SET_MAKE@
 SHELL = @SHELL@
 STRIP = @STRIP@
 VERSION = @VERSION@
-WINDRES = @WINDRES@
 abs_builddir = @abs_builddir@
 abs_srcdir = @abs_srcdir@
 abs_top_builddir = @abs_top_builddir@
@@ -407,15 +407,10 @@ EXTRA_DIST = CHANGES.txt COPYING.txt README.txt \
 	SDL2_rtf.spec.in	\
 	autogen.sh gcc-fat.sh
 
-@USE_VERSION_RC_FALSE@libSDL2_rtf_la_LDFLAGS = \
-@USE_VERSION_RC_FALSE@	-no-undefined		\
-@USE_VERSION_RC_FALSE@	-release $(LT_RELEASE)	\
-@USE_VERSION_RC_FALSE@	-version-info $(LT_CURRENT):$(LT_REVISION):$(LT_AGE) $(LT_EXTRA)
-
-@USE_VERSION_RC_TRUE@libSDL2_rtf_la_LDFLAGS = \
-@USE_VERSION_RC_TRUE@	-no-undefined		\
-@USE_VERSION_RC_TRUE@	-release $(LT_RELEASE)	\
-@USE_VERSION_RC_TRUE@	-version-info $(LT_CURRENT):$(LT_REVISION):$(LT_AGE) -Wl,version.o
+libSDL2_rtf_la_LDFLAGS = \
+	-no-undefined		\
+	-release $(LT_RELEASE)	\
+	-version-info $(LT_CURRENT):$(LT_REVISION):$(LT_AGE) $(LT_EXTRA)
 
 @USE_VERSION_RC_TRUE@libSDL2_rtf_la_DEPENDENCIES = version.o
 @HAVE_SDL_TTF_FALSE@EXAMPLES = 
@@ -426,7 +421,7 @@ showrtf_CFLAGS = @SDLTTF_CFLAGS@
 all: all-am
 
 .SUFFIXES:
-.SUFFIXES: .c .lo .o .obj
+.SUFFIXES: .c .lo .o .obj .rc
 am--refresh: Makefile
 	@:
 $(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
@@ -972,8 +967,8 @@ uninstall-am: uninstall-libLTLIBRARIES \
 .PRECIOUS: Makefile
 
 
-%.o : %.rc
-	$(WINDRES) $< $@
+.rc.o:
+	$(RC) $< $@
 
 # Rule to build tar-gzipped distribution package
 $(PACKAGE)-$(VERSION).tar.gz: distcheck
diff --git a/configure b/configure
index a47db0e..475a0da 100755
--- a/configure
+++ b/configure
@@ -784,7 +784,7 @@ PKG_CONFIG_PATH
 PKG_CONFIG
 USE_VERSION_RC_FALSE
 USE_VERSION_RC_TRUE
-WINDRES
+RC
 AM_BACKSLASH
 AM_DEFAULT_VERBOSITY
 AM_DEFAULT_V
@@ -11613,22 +11613,56 @@ $as_echo "no" >&6; }
   SET_MAKE="MAKE=${MAKE-make}"
 fi
 
-if test -z "$host_alias"; then
-    hostaliaswindres=
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}windres", so it can be a program name with args.
+set dummy ${ac_tool_prefix}windres; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_RC+:} false; then :
+  $as_echo_n "(cached) " >&6
 else
-    hostaliaswindres="$host_alias-windres"
-fi
-for ac_prog in windres $hostaliaswindres $host_os-windres
+  if test -n "$RC"; then
+  ac_cv_prog_RC="$RC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
 do
-  # Extract the first word of "$ac_prog", so it can be a program name with args.
-set dummy $ac_prog; ac_word=$2
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_RC="${ac_tool_prefix}windres"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+RC=$ac_cv_prog_RC
+if test -n "$RC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $RC" >&5
+$as_echo "$RC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_RC"; then
+  ac_ct_RC=$RC
+  # Extract the first word of "windres", so it can be a program name with args.
+set dummy windres; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_WINDRES+:} false; then :
+if ${ac_cv_prog_ac_ct_RC+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  if test -n "$WINDRES"; then
-  ac_cv_prog_WINDRES="$WINDRES" # Let the user override the test.
+  if test -n "$ac_ct_RC"; then
+  ac_cv_prog_ac_ct_RC="$ac_ct_RC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH
@@ -11637,7 +11671,7 @@ do
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
-    ac_cv_prog_WINDRES="$ac_prog"
+    ac_cv_prog_ac_ct_RC="windres"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
@@ -11647,18 +11681,110 @@ IFS=$as_save_IFS
 
 fi
 fi
-WINDRES=$ac_cv_prog_WINDRES
-if test -n "$WINDRES"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $WINDRES" >&5
-$as_echo "$WINDRES" >&6; }
+ac_ct_RC=$ac_cv_prog_ac_ct_RC
+if test -n "$ac_ct_RC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_RC" >&5
+$as_echo "$ac_ct_RC" >&6; }
 else
   { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
+  if test "x$ac_ct_RC" = x; then
+    RC=""
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    RC=$ac_ct_RC
+  fi
+else
+  RC="$ac_cv_prog_RC"
+fi
+
+
+
+# Source file extension for RC test sources.
+ac_ext=rc
+
+# Object file extension for compiled RC test sources.
+objext=o
+objext_RC=$objext
+
+# Code to be used in simple compile tests
+lt_simple_compile_test_code='sample MENU { MENUITEM "&Soup", 100, CHECKED }'
+
+# Code to be used in simple link tests
+lt_simple_link_test_code="$lt_simple_compile_test_code"
+
+# ltmain only uses $CC for tagged configurations so make sure $CC is set.
+
+
 
-  test -n "$WINDRES" && break
+
+
+
+# If no C compiler was specified, use CC.
+LTCC=${LTCC-"$CC"}
+
+# If no C compiler flags were specified, use CFLAGS.
+LTCFLAGS=${LTCFLAGS-"$CFLAGS"}
+
+# Allow CC to be a program name with arguments.
+compiler=$CC
+
+
+# save warnings/boilerplate of simple test code
+ac_outfile=conftest.$ac_objext
+echo "$lt_simple_compile_test_code" >conftest.$ac_ext
+eval "$ac_compile" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
+_lt_compiler_boilerplate=`cat conftest.err`
+$RM conftest*
+
+ac_outfile=conftest.$ac_objext
+echo "$lt_simple_link_test_code" >conftest.$ac_ext
+eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
+_lt_linker_boilerplate=`cat conftest.err`
+$RM -r conftest*
+
+
+# Allow CC to be a program name with arguments.
+lt_save_CC="$CC"
+lt_save_GCC=$GCC
+GCC=
+CC=${RC-"windres"}
+compiler=$CC
+compiler_RC=$CC
+for cc_temp in $compiler""; do
+  case $cc_temp in
+    compile | *[\\/]compile | ccache | *[\\/]ccache ) ;;
+    distcc | *[\\/]distcc | purify | *[\\/]purify ) ;;
+    \-*) ;;
+    *) break;;
+  esac
 done
+cc_basename=`$ECHO "X$cc_temp" | $Xsed -e 's%.*/%%' -e "s%^$host_alias-%%"`
+
+lt_cv_prog_compiler_c_o_RC=yes
+
+if test -n "$compiler"; then
+  :
+
+
+
+fi
+
+GCC=$lt_save_GCC
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+CC="$lt_save_CC"
 
 
 case "$host" in
@@ -11675,9 +11801,8 @@ case "$host" in
                 ac_default_prefix=$BUILD_PREFIX
             fi
         fi
-        if test x$WINDRES != x; then
-            use_version_rc=true
-        fi
+        use_version_rc=true
+        LT_EXTRA="-Wl,version.o"
         ;;
     *-*-os2*)
         # disable static builds on os/2
@@ -12414,8 +12539,6 @@ CheckWarnAll
 
 CheckVisibilityHidden
 
-
-
 # Finally create all the generated files
 ac_config_files="$ac_config_files Makefile SDL2_rtf.spec"
 
@@ -13287,6 +13410,47 @@ enable_dlopen_self='`$ECHO "X$enable_dlopen_self" | $Xsed -e "$delay_single_quot
 enable_dlopen_self_static='`$ECHO "X$enable_dlopen_self_static" | $Xsed -e "$delay_single_quote_subst"`'
 old_striplib='`$ECHO "X$old_striplib" | $Xsed -e "$delay_single_quote_subst"`'
 striplib='`$ECHO "X$striplib" | $Xsed -e "$delay_single_quote_subst"`'
+LD_RC='`$ECHO "X$LD_RC" | $Xsed -e "$delay_single_quote_subst"`'
+old_archive_cmds_RC='`$ECHO "X$old_archive_cmds_RC" | $Xsed -e "$delay_single_quote_subst"`'
+compiler_RC='`$ECHO "X$compiler_RC" | $Xsed -e "$delay_single_quote_subst"`'
+GCC_RC='`$ECHO "X$GCC_RC" | $Xsed -e "$delay_single_quote_subst"`'
+lt_prog_compiler_no_builtin_flag_RC='`$ECHO "X$lt_prog_compiler_no_builtin_flag_RC" | $Xsed -e "$delay_single_quote_subst"`'
+lt_prog_compiler_wl_RC='`$ECHO "X$lt_prog_compiler_wl_RC" | $Xsed -e "$delay_single_quote_subst"`'
+lt_prog_compiler_pic_RC='`$ECHO "X$lt_prog_compiler_pic_RC" | $Xsed -e "$delay_single_quote_subst"`'
+lt_prog_compiler_static_RC='`$ECHO "X$lt_prog_compiler_static_RC" | $Xsed -e "$delay_single_quote_subst"`'
+lt_cv_prog_compiler_c_o_RC='`$ECHO "X$lt_cv_prog_compiler_c_o_RC" | $Xsed -e "$delay_single_quote_subst"`'
+archive_cmds_need_lc_RC='`$ECHO "X$archive_cmds_need_lc_RC" | $Xsed -e "$delay_single_quote_subst"`'
+enable_shared_with_static_runtimes_RC='`$ECHO "X$enable_shared_with_static_runtimes_RC" | $Xsed -e "$delay_single_quote_subst"`'
+export_dynamic_flag_spec_RC='`$ECHO "X$export_dynamic_flag_spec_RC" | $Xsed -e "$delay_single_quote_subst"`'
+whole_archive_flag_spec_RC='`$ECHO "X$whole_archive_flag_spec_RC" | $Xsed -e "$delay_single_quote_subst"`'
+compiler_needs_object_RC='`$ECHO "X$compiler_needs_object_RC" | $Xsed -e "$delay_single_quote_subst"`'
+old_archive_from_new_cmds_RC='`$ECHO "X$old_archive_from_new_cmds_RC" | $Xsed -e "$delay_single_quote_subst"`'
+old_archive_from_expsyms_cmds_RC='`$ECHO "X$old_archive_from_expsyms_cmds_RC" | $Xsed -e "$delay_single_quote_subst"`'
+archive_cmds_RC='`$ECHO "X$archive_cmds_RC" | $Xsed -e "$delay_single_quote_subst"`'
+archive_expsym_cmds_RC='`$ECHO "X$archive_expsym_cmds_RC" | $Xsed -e "$delay_single_quote_subst"`'
+module_cmds_RC='`$ECHO "X$module_cmds_RC" | $Xsed -e "$delay_single_quote_subst"`'
+module_expsym_cmds_RC='`$ECHO "X$module_expsym_cmds_RC" | $Xsed -e "$delay_single_quote_subst"`'
+with_gnu_ld_RC='`$ECHO "X$with_gnu_ld_RC" | $Xsed -e "$delay_single_quote_subst"`'
+allow_undefined_flag_RC='`$ECHO "X$allow_undefined_flag_RC" | $Xsed -e "$delay_single_quote_subst"`'
+no_undefined_flag_RC='`$ECHO "X$no_undefined_flag_RC" | $Xsed -e "$delay_single_quote_subst"`'
+hardcode_libdir_flag_spec_RC='`$ECHO "X$hardcode_libdir_flag_spec_RC" | $Xsed -e "$delay_single_quote_subst"`'
+hardcode_libdir_flag_spec_ld_RC='`$ECHO "X$hardcode_libdir_flag_spec_ld_RC" | $Xsed -e "$delay_single_quote_subst"`'
+hardcode_libdir_separator_RC='`$ECHO "X$hardcode_libdir_separator_RC" | $Xsed -e "$delay_single_quote_subst"`'
+hardcode_direct_RC='`$ECHO "X$hardcode_direct_RC" | $Xsed -e "$delay_single_quote_subst"`'
+hardcode_direct_absolute_RC='`$ECHO "X$hardcode_direct_absolute_RC" | $Xsed -e "$delay_single_quote_subst"`'
+hardcode_minus_L_RC='`$ECHO "X$hardcode_minus_L_RC" | $Xsed -e "$delay_single_quote_subst"`'
+hardcode_shlibpath_var_RC='`$ECHO "X$hardcode_shlibpath_var_RC" | $Xsed -e "$delay_single_quote_subst"`'
+hardcode_automatic_RC='`$ECHO "X$hardcode_automatic_RC" | $Xsed -e "$delay_single_quote_subst"`'
+inherit_rpath_RC='`$ECHO "X$inherit_rpath_RC" | $Xsed -e "$delay_single_quote_subst"`'
+link_all_deplibs_RC='`$ECHO "X$link_all_deplibs_RC" | $Xsed -e "$delay_single_quote_subst"`'
+fix_srcfile_path_RC='`$ECHO "X$fix_srcfile_path_RC" | $Xsed -e "$delay_single_quote_subst"`'
+always_export_symbols_RC='`$ECHO "X$always_export_symbols_RC" | $Xsed -e "$delay_single_quote_subst"`'
+export_symbols_cmds_RC='`$ECHO "X$export_symbols_cmds_RC" | $Xsed -e "$delay_single_quote_subst"`'
+exclude_expsyms_RC='`$ECHO "X$exclude_expsyms_RC" | $Xsed -e "$delay_single_quote_subst"`'
+include_expsyms_RC='`$ECHO "X$include_expsyms_RC" | $Xsed -e "$delay_single_quote_subst"`'
+prelink_cmds_RC='`$ECHO "X$prelink_cmds_RC" | $Xsed -e "$delay_single_quote_subst"`'
+file_list_spec_RC='`$ECHO "X$file_list_spec_RC" | $Xsed -e "$delay_single_quote_subst"`'
+hardcode_action_RC='`$ECHO "X$hardcode_action_RC" | $Xsed -e "$delay_single_quote_subst"`'
 
 LTCC='$LTCC'
 LTCFLAGS='$LTCFLAGS'
@@ -13349,7 +13513,27 @@ library_names_spec \
 soname_spec \
 finish_eval \
 old_striplib \
-striplib; do
+striplib \
+LD_RC \
+compiler_RC \
+lt_prog_compiler_no_builtin_flag_RC \
+lt_prog_compiler_wl_RC \
+lt_prog_compiler_pic_RC \
+lt_prog_compiler_static_RC \
+lt_cv_prog_compiler_c_o_RC \
+export_dynamic_flag_spec_RC \
+whole_archive_flag_spec_RC \
+compiler_needs_object_RC \
+with_gnu_ld_RC \
+allow_undefined_flag_RC \
+no_undefined_flag_RC \
+hardcode_libdir_flag_spec_RC \
+hardcode_libdir_flag_spec_ld_RC \
+hardcode_libdir_separator_RC \
+fix_srcfile_path_RC \
+exclude_expsyms_RC \
+include_expsyms_RC \
+file_list_spec_RC; do
     case \`eval \\\\\$ECHO "X\\\\\$\$var"\` in
     *[\\\\\\\`\\"\\\$]*)
       eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"X\\\$\$var\\" | \\\$Xsed -e \\"\\\$sed_quote_subst\\"\\\`\\\\\\""
@@ -13378,7 +13562,16 @@ postinstall_cmds \
 postuninstall_cmds \
 finish_cmds \
 sys_lib_search_path_spec \
-sys_lib_dlsearch_path_spec; do
+sys_lib_dlsearch_path_spec \
+old_archive_cmds_RC \
+old_archive_from_new_cmds_RC \
+old_archive_from_expsyms_cmds_RC \
+archive_cmds_RC \
+archive_expsym_cmds_RC \
+module_cmds_RC \
+module_expsym_cmds_RC \
+export_symbols_cmds_RC \
+prelink_cmds_RC; do
     case \`eval \\\\\$ECHO "X\\\\\$\$var"\` in
     *[\\\\\\\`\\"\\\$]*)
       eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"X\\\$\$var\\" | \\\$Xsed -e \\"\\\$double_quote_subst\\" -e \\"\\\$sed_quote_subst\\" -e \\"\\\$delay_variable_subst\\"\\\`\\\\\\""
@@ -13414,6 +13607,8 @@ fi
 
 
 
+
+
 AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"
 
 _ACEOF
@@ -13906,7 +14101,7 @@ $as_echo "$as_me: executing $ac_file commands" >&6;}
 
 
 # The names of the tagged configurations supported by this script.
-available_tags=""
+available_tags="RC "
 
 # ### BEGIN LIBTOOL CONFIG
 
@@ -14497,6 +14692,145 @@ _LT_EOF
     (rm -f "$ofile" && cp "$cfgfile" "$ofile" && rm -f "$cfgfile")
   chmod +x "$ofile"
 
+
+    cat <<_LT_EOF >> "$ofile"
+
+# ### BEGIN LIBTOOL TAG CONFIG: RC
+
+# The linker used to build libraries.
+LD=$lt_LD_RC
+
+# Commands used to build an old-style archive.
+old_archive_cmds=$lt_old_archive_cmds_RC
+
+# A language specific compiler.
+CC=$lt_compiler_RC
+
+# Is the compiler the GNU compiler?
+with_gcc=$GCC_RC
+
+# Compiler flag to turn off builtin functions.
+no_builtin_flag=$lt_lt_prog_compiler_no_builtin_flag_RC
+
+# How to pass a linker flag through the compiler.
+wl=$lt_lt_prog_compiler_wl_RC
+
+# Additional compiler flags for building library objects.
+pic_flag=$lt_lt_prog_compiler_pic_RC
+
+# Compiler flag to prevent dynamic linking.
+link_static_flag=$lt_lt_prog_compiler_static_RC
+
+# Does compiler simultaneously support -c and -o options?
+compiler_c_o=$lt_lt_cv_prog_compiler_c_o_RC
+
+# Whether or not to add -lc for building shared libraries.
+build_libtool_need_lc=$archive_cmds_need_lc_RC
+
+# Whether or not to disallow shared libs when runtime libs are static.
+allow_libtool_libs_with_static_runtimes=$enable_shared_with_static_runtimes_RC
+
+# Compiler flag to allow reflexive dlopens.
+export_dynamic_flag_spec=$lt_export_dynamic_flag_spec_RC
+
+# Compiler flag to generate shared objects directly from archives.
+whole_archive_flag_spec=$lt_whole_archive_flag_spec_RC
+
+# Whether the compiler copes with passing no objects directly.
+compiler_needs_object=$lt_compiler_needs_object_RC
+
+# Create an old-style archive from a shared archive.
+old_archive_from_new_cmds=$lt_old_archive_from_new_cmds_RC
+
+# Create a temporary old-style archive to link instead of a shared archive.
+old_archive_from_expsyms_cmds=$lt_old_archive_from_expsyms_cmds_RC
+
+# Commands used to build a shared archive.
+archive_cmds=$lt_archive_cmds_RC
+archive_expsym_cmds=$lt_archive_expsym_cmds_RC
+
+# Commands used to build a loadable module if different from building
+# a shared archive.
+module_cmds=$lt_module_cmds_RC
+module_expsym_cmds=$lt_module_expsym_cmds_RC
+
+# Whether we are building with GNU ld or not.
+with_gnu_ld=$lt_with_gnu_ld_RC
+
+# Flag that allows shared libraries with undefined symbols to be built.
+allow_undefined_flag=$lt_allow_undefined_flag_RC
+
+# Flag that enforces no undefined symbols.
+no_undefined_flag=$lt_no_undefined_flag_RC
+
+# Flag to hardcode \$libdir into a binary during linking.
+# This must work even if \$libdir does not exist
+hardcode_libdir_flag_spec=$lt_hardcode_libdir_flag_spec_RC
+
+# If ld is used when linking, flag to hardcode \$libdir into a binary
+# during linking.  This must work even if \$libdir does not exist.
+hardcode_libdir_flag_spec_ld=$lt_hardcode_libdir_flag_spec_ld_RC
+
+# Whether we need a single "-rpath" flag with a separated argument.
+hardcode_libdir_separator=$lt_hardcode_libdir_separator_RC
+
+# Set to "yes" if using DIR/libNAME\${shared_ext} during linking hardcodes
+# DIR into the resulting binary.
+hardcode_direct=$hardcode_direct_RC
+
+# Set to "yes" if using DIR/libNAME\${shared_ext} during linking hardcodes
+# DIR into the resulting binary and the resulting library dependency is
+# "absolute",i.e impossible to change by setting \${shlibpath_var} if the
+# library is relocated.
+hardcode_direct_absolute=$hardcode_direct_absolute_RC
+
+# Set to "yes" if using the -LDIR flag during linking hardcodes DIR
+# into the resulting binary.
+hardcode_minus_L=$hardcode_minus_L_RC
+
+# Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR
+# into the resulting binary.
+hardcode_shlibpath_var=$hardcode_shlibpath_var_RC
+
+# Set to "yes" if building a shared library automatically hardcodes DIR
+# into the library and all subsequent libraries and executables linked
+# against it.
+hardcode_automatic=$hardcode_automatic_RC
+
+# Set to yes if linker adds runtime paths of dependent libraries
+# to runtime path list.
+inherit_rpath=$inherit_rpath_RC
+
+# Whether libtool must link a program against all its dependency libraries.
+link_all_deplibs=$link_all_deplibs_RC
+
+# Fix the shell variable \$srcfile for the compiler.
+fix_srcfile_path=$lt_fix_srcfile_path_RC
+
+# Set to "yes" if exported symbols are required.
+always_export_symbols=$always_export_symbols_RC
+
+# The commands to list exported symbols.
+export_symbols_cmds=$lt_export_symbols_cmds_RC
+
+# Symbols that should not be listed in the preloaded symbols.
+exclude_expsyms=$lt_exclude_expsyms_RC
+
+# Symbols that must always be exported.
+include_expsyms=$lt_include_expsyms_RC
+
+# Commands necessary for linking programs (against libraries) with templates.
+prelink_cmds=$lt_prelink_cmds_RC
+
+# Specify filename containing input files.
+file_list_spec=$lt_file_list_spec_RC
+
+# How to hardcode a shared library path into an executable.
+hardcode_action=$hardcode_action_RC
+
+# ### END LIBTOOL TAG CONFIG: RC
+_LT_EOF
+
  ;;
     "depfiles":C) test x"$AMDEP_TRUE" != x"" || {
   # Older Autoconf quotes --file arguments for eval, but not when files
diff --git a/configure.ac b/configure.ac
index a29f278..09eda4f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -52,12 +52,7 @@ dnl Check for tools
 AC_PROG_CC
 AC_PROG_INSTALL
 AC_PROG_MAKE_SET
-if test -z "$host_alias"; then
-    hostaliaswindres=
-else
-    hostaliaswindres="$host_alias-windres"
-fi
-AC_CHECK_PROGS(WINDRES, [windres $hostaliaswindres $host_os-windres])
+LT_PROG_RC
 
 case "$host" in
     *-*-beos*)
@@ -73,9 +68,8 @@ case "$host" in
                 ac_default_prefix=$BUILD_PREFIX
             fi
         fi
-        if test x$WINDRES != x; then
-            use_version_rc=true
-        fi
+        use_version_rc=true
+        LT_EXTRA="-Wl,version.o"
         ;;
     *-*-os2*)
         # disable static builds on os/2
@@ -178,8 +172,6 @@ CheckWarnAll
 dnl check for GCC visibility attributes
 CheckVisibilityHidden
 
-AC_SUBST([WINDRES])
-
 # Finally create all the generated files
 AC_CONFIG_FILES([
 Makefile