Merge #8787: [Doc] Add missing autogen to example builds

3f58a28 [Doc] Add missing autogen to example builds (Amir Abrams)

Author: laanwj

doc/build-windows.md

@@ -27,6 +27,7 @@ To build executables for Windows 32-bit:
     cd depends
     make HOST=i686-w64-mingw32 -j4
     cd ..
+    ./autogen.sh # not required when building from tarball
     ./configure --prefix=`pwd`/depends/i686-w64-mingw32
     make
 
@@ -35,6 +36,7 @@ To build executables for Windows 64-bit:
     cd depends
     make HOST=x86_64-w64-mingw32 -j4
     cd ..
+    ./autogen.sh # not required when building from tarball
     ./configure --prefix=`pwd`/depends/x86_64-w64-mingw32
     make