File Ipopt-docdir.patch of Package mingw64-Ipopt

diff --git a/Makefile.in b/Makefile.in
index 0005e07..67b715a 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -507,9 +507,9 @@ tmpdir = tmpdir
 libipopt = libipopt.a
 pkgconfiglibdir = $(libdir)/pkgconfig
 pkgconfiglib_DATA = ipopt.pc
-addlibsdir = $(DESTDIR)$(datadir)/coin/doc/Ipopt
+addlibsdir = $(DESTDIR)$(datadir)/doc/$(PACKAGE_NAME)
 DocFiles = README AUTHORS LICENSE 
-DocInstallDir = $(datadir)/coin/doc/$(PACKAGE_NAME)
+DocInstallDir = $(datadir)/doc/$(PACKAGE_NAME)
 COIN_HAS_DOXYGEN = @COIN_HAS_DOXYGEN_TRUE@TRUE
 COIN_HAS_LATEX = @COIN_HAS_LATEX_TRUE@TRUE
 all: all-recursive