diff --git a/libs/apr-util/xml/expat/buildconf.sh b/libs/apr-util/xml/expat/buildconf.sh
index d36a292e8e..1f5789dc07 100755
--- a/libs/apr-util/xml/expat/buildconf.sh
+++ b/libs/apr-util/xml/expat/buildconf.sh
@@ -58,6 +58,8 @@ echo "Creating config.h.in ..."
 ${AUTOHEADER:-autoheader} 2>&1 | grep -v "$cross_compile_warning"
 
 echo "Creating configure ..."
+${ACLOCAL:-aclocal}
+
 ### do some work to toss config.cache?
 ${AUTOCONF:-autoconf} 2>&1 | grep -v "$cross_compile_warning"
 
diff --git a/libs/apr/configure.in b/libs/apr/configure.in
index 8c0135ab7b..59fa7b9c7c 100644
--- a/libs/apr/configure.in
+++ b/libs/apr/configure.in
@@ -200,8 +200,8 @@ AC_ARG_WITH(libtool, [  --without-libtool       avoid using libtool to link the
 
 if test "x$use_libtool" = "xyes"; then
       lt_compile='$(LIBTOOL) $(LTFLAGS) --mode=compile $(COMPILE) -o $@ -c $< && touch $@'
-      LT_VERSION="-version-info `$get_version libtool $version_hdr APR`"
-      link="\$(LIBTOOL) \$(LTFLAGS) --mode=link \$(LT_LDFLAGS) \$(COMPILE) ${LT_VERSION} \$(ALL_LDFLAGS) -o \$@"
+      lt_version="-version-info `$get_version libtool $version_hdr APR`"
+      link="\$(LIBTOOL) \$(LTFLAGS) --mode=link \$(LT_LDFLAGS) \$(COMPILE) ${lt_version} \$(ALL_LDFLAGS) -o \$@"
       so_ext='lo'
       lib_target='-rpath $(libdir) $(OBJECTS)'
       export_lib_target='-rpath \$(libdir) \$(OBJECTS)'
diff --git a/libs/libsndfile/configure.ac b/libs/libsndfile/configure.ac
index 2f08a96d05..3614b8ba3f 100644
--- a/libs/libsndfile/configure.ac
+++ b/libs/libsndfile/configure.ac
@@ -32,6 +32,7 @@ SHARED_VERSION_INFO="1:17:0"
 
 AC_PROG_CC
 AM_PROG_CC_C_O
+AC_PROG_CXX
 AM_PROG_LIBTOOL
 
 AC_CHECK_PROG(autogen, autogen, yes, no)
diff --git a/src/mod/formats/mod_shout/Makefile b/src/mod/formats/mod_shout/Makefile
index 35b7f155dc..cf432def3b 100644
--- a/src/mod/formats/mod_shout/Makefile
+++ b/src/mod/formats/mod_shout/Makefile
@@ -30,7 +30,7 @@ $(MPG123_DIR):
 	$(GETLIB) $(MPG123).tar.gz
 
 $(MPG123_DIR)/Makefile: $(MPG123_DIR)
-	cd $(MPG123_DIR) && CFLAGS=$(AM_CFLAGS) ./configure --disable-shared --with-pic CPPFLAGS= LDFLAGS=
+	cd $(MPG123_DIR) && CFLAGS=$(AM_CFLAGS) CC=$(CC) CXX=$(CXX) ./configure --disable-shared --with-pic CPPFLAGS= LDFLAGS=
 	$(TOUCH_TARGET)
 
 $(MPG123LA): $(MPG123_DIR)/Makefile
@@ -41,7 +41,7 @@ $(LAME_DIR):
 	$(GETLIB) $(LAME).tar.gz
 
 $(LAME_DIR)/Makefile: $(LAME_DIR)
-	cd $(LAME_DIR) && ./configure $(DEFAULT_ARGS) --disable-decoder CPPFLAGS= LDFLAGS=
+	cd $(LAME_DIR) && CC=$(CC) CXX=$(CXX) ./configure $(DEFAULT_ARGS) --disable-decoder CPPFLAGS= LDFLAGS=
 	$(TOUCH_TARGET)
 
 $(LAMELA): $(LAME_DIR)/Makefile
@@ -52,7 +52,7 @@ $(SHOUT_DIR):
 	$(GETLIB) $(SHOUT).tar.gz
 
 $(SHOUT_DIR)/Makefile: $(SHOUT_DIR)
-	cd $(SHOUT_DIR) && ./configure $(DEFAULT_ARGS) --without-speex --without-vorbis --without-ogg CPPFLAGS= LDFLAGS=
+	cd $(SHOUT_DIR) && CC=$(CC) CXX=$(CXX) ./configure $(DEFAULT_ARGS) --without-speex --without-vorbis --without-ogg CPPFLAGS= LDFLAGS=
 	$(TOUCH_TARGET)
 
 $(SHOUTLA): $(SHOUT_DIR)/Makefile