build-win: mingw-x86: updated doc and project file

2 files changed, 56 insertions, 35 deletions

diff --git a/README.md b/README.md
index 42c38b1f..e3e95df1 100644
--- a/README.md
+++ b/README.md
@@ -143,45 +143,53 @@ TODO
 ### On Windows:
 
 1. Install [msys2](http://msys2.github.io/), follow the instructions on that page on how to update packages to the latest versions
-2. Install monero dependencies as described in [monero documentation](https://github.com/monero-project/monero)
-3. Install git:
+2. Install monero dependencies as described in [monero documentation](https://github.com/monero-project/monero) into msys2 environment.
+   **As we only build application for x86, install only dependencies for x86 architecture (i686 in package name)**
+
+3. Install git into msys2 environment:
 
     ```
     pacman -S git
     ```
-4. Install Qt5:
-    - if you need to build x86 application, install:
-  
-       ```
-      pacman -S mingw-w64-i686-qt5
-      ```
 
-    - if you need to build x64 application, install:
+4. Install Qt5 from [official site](https://www.qt.io/download-open-source/).
+   - download unified installer, run and select following options:
+       - Qt > Qt 5.7 > MinGW 5.3.0 32 bit
+       - Tools > MinGW 5.3.0
+   - continue with installation
 
-      ```
-      pacman -S mingw-w64-x86_64-qt5
-      ```
-5. Open ```mingw``` shell. MSYS2 will install start menu items for both mingw32 and mingw64 environments, so
-   you need to open appropriate one:
-   ```%MSYS_ROOT%\msys2_shell.cmd -mingw32``` for x86 targed
-   or 
-   ```%MSYS_ROOT%\msys2_shell.cmd -mingw64``` for x64 targed
+5. Open ```mingw``` shell:
 
+   ```%MSYS_ROOT%\msys2_shell.cmd -mingw32```
+   
    Where ```%MSYS_ROOT%``` will be ```c:\msys32``` if your host OS is x86-based or ```c:\msys64``` if your host OS
    is x64-based
+
 6. Clone git repository:
     ```
     git clone https://github.com/monero-project/monero-core.git
     ```
 
-7. Build the project:
+7. Build libwallet:
     ```
     cd monero-core
-    ./build.sh
+    ./get_libwallet_api.sh
     ```
-8. Take result binary and dependencies in ```./build/release/bin```
+      close ```mingw``` shell after it done
+
+8. Build application:
+
+    - open ```Qt environment``` shell (Qt 5.7 for Desktop (MinGW 5.3.0 32 bit) is shortcut name) 
+    - navigate to the project dir and build the app: 
+      ```
+      cd %MSYS_ROOT%\%USERNAME%\monero-core
+      mkdir build
+      cd build
+      qmake ..\ -r "CONFIG+=release"
+      mingw32-make release
+      mingw32-make deploy
+      ```
+    - grab result binary and dependencies in ```.\release\bin```
+
+
 
-   **important: if you testing application within VirtualBox virtual machine, make sure 3D acceleration is enabled
-   in machine's settings:
-   Machine > Settings > Display > [v] Enable 3D Acceleration**
-   
diff --git a/monero-core.pro b/monero-core.pro
index 3121f109..21d1d409 100644
--- a/monero-core.pro
+++ b/monero-core.pro
@@ -54,8 +54,31 @@ LIBS += -L$$WALLET_ROOT/lib \
         -lwallet_merged \
         -lunbound
 
+
+# currently we only support x86 build as qt.io only provides prebuilt qt for x86 mingw
+
 win32 {
-    #QMAKE_LFLAGS += -static
+    
+    contains(QMAKE_HOST.arch, x86_64) {
+        message("Host is 64bit")
+        MSYS_PATH=c:/msys64/mingw32
+    } else {
+        message("Host is 32bit")
+        MSYS_PATH=c:/msys32/mingw32
+    }
+
+    !contains(QMAKE_TARGET.arch, x86_64) {
+        message("Target is 32bit")
+        ## Windows x86 (32bit) specific build here
+        ## there's 2Mb stack in libwallet allocated internally, so we set stack=4Mb
+        ## this fixes app crash for x86 Windows build
+        QMAKE_LFLAGS += -Wl,--stack,4194304
+    } else {
+        message("Target is 64bit")
+    }
+
+    LIBS+=-L$$MSYS_PATH/lib
+    
     LIBS+= \
         -Wl,-Bstatic \
         -lboost_serialization-mt \
@@ -75,16 +98,6 @@ win32 {
         -lgdi32
 
 
-    !contains(QMAKE_TARGET.arch, x86_64) {
-        message("x86 build")
-        ## Windows x86 (32bit) specific build here
-        ## there's 2Mb stack in libwallet allocated internally
-        ## this fixes app crash for x86 Windows build
-        QMAKE_LFLAGS += -Wl,--stack,4194304
-    } else {
-        message("x64 build")
-    }
-
 
 }