Added cygwin specific build patches

Makefile.in

@@ -6,6 +6,7 @@ export prefix=@prefix@
 export exec_prefix=@exec_prefix@
 export LIBDIR=@libdir@
 export INSTALL_OPTIONS=@INSTALL_OPTIONS@
+export PLATFORM=@PLATFORM@
 
 BUILD_C_LIBS=@BUILD_C_LIBS@
 PYTHON=@PYTHON@
@@ -18,7 +19,7 @@ all: build
 install: build
 	if [ "$(BUILD_C_LIBS)" -eq "1" ]; then make -C $(SRC_C_DIR) install; fi
 	$(PYTHON) ./setup.py install
-	if [ "$(BUILD_C_LIBS)" -eq "1" ]; then ldconfig || true; fi
+	if [ "$(BUILD_C_LIBS)" -eq "1" ] && [ "$(PLATFORM)" != "Cygwin" ]; then ldconfig || true; fi
 
 deps:
 	./deps.sh

configure

@@ -600,6 +600,7 @@ ac_includes_default="\
 
 ac_subst_vars='LTLIBOBJS
 INSTALL_OPTIONS
+PLATFORM
 SOEXT
 SONAME
 PYTHON
@@ -3334,6 +3335,8 @@ SONAME=$SONAME
 
 SOEXT=$SOEXT
 
+PLATFORM=$(uname -o)
+
 INSTALL_OPTIONS=$INSTALL_OPTIONS
 
 ac_config_files="$ac_config_files Makefile"

configure.ac

@@ -41,6 +41,7 @@ AC_SUBST(BUILD_C_LIBS, $BUILD_C_LIBS)
 AC_SUBST(PYTHON, $PYTHON)
 AC_SUBST(SONAME, $SONAME)
 AC_SUBST(SOEXT, $SOEXT)
+AC_SUBST(PLATFORM, $(uname -o))
 AC_SUBST(INSTALL_OPTIONS, $INSTALL_OPTIONS)
 AC_CONFIG_FILES([Makefile])
 AC_OUTPUT