Building with MingW64 w64, w32 chains

1. Installing Minimalist GNU for Windows-w64 (MinGW-w64)

The mingw64 for build 32-bit binaries only works for PostgreSQL 9.2+. There are changes they did in 9.2 that were never backported to 9.1 and below. So to compile PostGIS for 32-bit for 9.1 and below you need to use the regular old Msys instructions. mingw64 chain will work for 64-bit 9.0-9.3 and for 32-bit 9.2-9.3.

We will use MingGW-w64 toolchain instead of the standard MingW since it has support for both 32-bit and 64-bit compiling. For this discussion we are using the binaries built for running on Windows. We haven't tried the builds designed for building windows binaries under Linux/Unix?.

Details of the prefixes of files can be found at What to download

MingW-w64 site is There are issues with GEOS compile above 4.5.4 or so, in 4.6.1+, the make check crashes and so does PostGIS tests when compiled with GCC 4.6+. That said you should pick a build lower than GCC 4.6. We like GCC 4.5.4 Issues are documented in (also similar issue compiling Geos under windows 64-bit SDK )

starting with

  • Extract your respective zip into a folder called C:\ming64\mingw64 or c:\ming32\mingw32
  • Download the latest patch in same folder e.g. for win32, for win64 and extract into same respective folders. There might be a newer patch use that one.

/ NOTE to self: This may not be necessary anymore / GEOS fails to link if it picks up 32-bit dlls so to overcome this, I copied over the dlls from windows/sytem32 and renamed them as described in #linking errors seems to be caused by as described here mingw64 is picking up the 32-bit dlls from syswow64 instead of the 64-bit dlls from windows/system32 I only needed to copy ws2_32.dll for geos to compile without errors Others may be needed not sure. with windows explorer copy the files from windows/system32


To your folder: C:\ming64\x86_64-w64-mingw32\lib and then rename them adding a lib extensions so you have

# these ones didn't seem necessary for PostGIS: libmsimg32.dll,libgdi32.dll, libcrypt32.dll and libwldap32.dll

prefixed files

These sometimes exist only with the prefixes and cause issues during compilation so you'll need prefixless versions

cp /mingw/bin/x86_64-w64-mingw32-cpp.exe /mingw/bin/cpp.exe
cp /mingw/bin/x86_64-w64-mingw32-strip.exe /mingw/bin/strip.exe

2. Installing Msys

MSys is 32-bit but you can use it with your 32-bit or 64-bit mingw-w64. Instructions are here mingw-w64 with MSYS and repeated here for completeness

  • download Msys (update there is now a newer MSYS --
  • Extract into a folder called C:\Ming64\msys (or C:\Ming32\msys)
  • launch msys.bat
  • type
sh /postinstall/

When prompted type in C:/ming64/mingw64 or C:/ming32/mingw32 depending on which tool chain you chose Once done, type logout and the console should exit. Note: You can have both if you are using windows 64-bit and we do.

GEOS also gives missing vtable message during link. I think this was caused by msys missing find.exe, so I copied the find.exe from regular msys package ( as instructed in the to bin of respective ming64/ming32 msys folders.

3a. Installing Autoconf, Automake and Libtool

Relaunch C:\ming64\msys\msys.bat (or c:\ming32\msys\msys.bat)

We create a file with commands like this and make sure this is included in all my compile scripts

export OS_BUILD=64
if [[ "${OS_BUILD}" == "64" ]] ; then
	export MINGHOST=x86_64-w64-mingw32
	export MINGHOST=i686-w64-mingw32
#if you are building for 32-bit change ming64 to ming32
mkdir ${PROJECTS} 

Verify which versions of these you have with

autoconf --version


If they are not newer (or you get not found) than below then download and install. Download the source code from the GNU site and save to c:\projects

tar -xvf autoconf-2.65.tar.gz
cd autoconf-2.65
./configure --host=${MINGHOST} --prefix=/mingw  (if you are building for 32-bit then use --host=i686-w64-mingw32)
make && make install
autoconf --version

repeat same exercise for automake

For libtool

tar -xvf libtool-2.4.10.tar.gz 

cd libtool-2.4.10
./configure --host=${MINGHOST} --disable-shared --prefix=/mingw
#if you get a message that gcc is not usable, then you probably set your
# mingw setting wrong or did not install automake/autotools in /mingw
#try to fix by rerunning the sh /postinstall/ again
make clean && make && make install
libtool --version

For CUnit

	tar -xvf CUnit-2.1-2-src.tar.bz2
	cd CUnit-2.1-2
	./configure --build=${MINGHOST} --prefix=/mingw/${MINGHOST}
	make clean
	make && make install
	make check
Last modified 8 years ago Last modified on Jun 23, 2013, 5:35:04 PM