[HOWTO] compile altcoin for windows on linux using mxe and mingw

[bluebearcoin]

Thank you,

[mimota153]

I already tried to configure and do the make install before and it didn't change anything. I tested it all again, including the ldconfig (just to make sure), but this option didn't solve the issue

[widecash]

Can we add QR code on QT wallet  ?

Regards

[widecash]

Final stage to compile it. it has error below.

Any solution ?

src/bignum.h:531:61: error: cannot convert 'const CBigNum*' to 'const BIGNUM* {aka const bignum_st*}' for argument '1' to 'int BN_is_prime(const BIGNUM*, int, void (*)(int, int, void*), BN_CTX*, void*)'
         int ret = BN_is_prime(this, checks, NULL, pctx, NULL);
                                                             ^
src/bignum.h: In member function 'bool CBigNum::isOne() const':
src/bignum.h:539:30: error: cannot convert 'const CBigNum*' to 'const BIGNUM* {aka const bignum_st*}' for argument '1' to 'int BN_is_one(const BIGNUM*)'
         return BN_is_one(this);
                              ^
src/bignum.h: In member function 'bool CBigNum::operator!() const':
src/bignum.h:545:31: error: cannot convert 'const CBigNum*' to 'const BIGNUM* {aka const bignum_st*}' for argument '1' to 'int BN_is_zero(const BIGNUM*)'
         return BN_is_zero(this);
                               ^
src/bignum.h: In member function 'CBigNum& CBigNum::operator+=(const CBigNum&)':
src/bignum.h:550:35: error: cannot convert 'CBigNum*' to 'BIGNUM* {aka bignum_st*}' for argument '1' to 'int BN_add(BIGNUM*, const BIGNUM*, const BIGNUM*)'
         if (!BN_add(this, this, &b))
                                   ^
src/bignum.h: In member function 'CBigNum& CBigNum::operator*=(const CBigNum&)':
src/bignum.h:564:41: error: cannot convert 'CBigNum*' to 'BIGNUM* {aka bignum_st*}' for argument '1' to 'int BN_mul(BIGNUM*, const BIGNUM*, const BIGNUM*, BN_CTX*)'
         if (!BN_mul(this, this, &b, pctx))
                                         ^
src/bignum.h: In member function 'CBigNum& CBigNum::operator<<=(unsigned int)':
src/bignum.h:583:41: error: cannot convert 'CBigNum*' to 'BIGNUM* {aka bignum_st*}' for argument '1' to 'int BN_lshift(BIGNUM*, const BIGNUM*, int)'
         if (!BN_lshift(this, this, shift))
                                         ^
src/bignum.h: In member function 'CBigNum& CBigNum::operator>>=(unsigned int)':
src/bignum.h:594:28: error: cannot convert 'CBigNum*' to 'const BIGNUM* {aka const bignum_st*}' for argument '1' to 'int BN_cmp(const BIGNUM*, const BIGNUM*)'
         if (BN_cmp(&a, this) > 0)
                            ^
src/bignum.h:600:41: error: cannot convert 'CBigNum*' to 'BIGNUM* {aka bignum_st*}' for argument '1' to 'int BN_rshift(BIGNUM*, const BIGNUM*, int)'
         if (!BN_rshift(this, this, shift))
                                         ^
src/bignum.h: In member function 'CBigNum& CBigNum::operator++()':
src/bignum.h:609:47: error: cannot convert 'CBigNum*' to 'BIGNUM* {aka bignum_st*}' for argument '1' to 'int BN_add(BIGNUM*, const BIGNUM*, const BIGNUM*)'
         if (!BN_add(this, this, BN_value_one()))
                                               ^
src/bignum.h: In member function 'CBigNum& CBigNum::operator--()':
src/bignum.h:626:45: error: cannot convert 'CBigNum*' to 'BIGNUM* {aka bignum_st*}' for argument '1' to 'int BN_sub(BIGNUM*, const BIGNUM*, const BIGNUM*)'
         if (!BN_sub(&r, this, BN_value_one()))
                                             ^
src/bignum.h: In function 'const CBigNum operator+(const CBigNum&, const CBigNum&)':
src/bignum.h:653:27: error: cannot convert 'CBigNum*' to 'BIGNUM* {aka bignum_st*}' for argument '1' to 'int BN_add(BIGNUM*, const BIGNUM*, const BIGNUM*)'
     if (!BN_add(&r, &a, &b))
                           ^
src/bignum.h: In function 'const CBigNum operator-(const CBigNum&, const CBigNum&)':
src/bignum.h:661:27: error: cannot convert 'CBigNum*' to 'BIGNUM* {aka bignum_st*}' for argument '1' to 'int BN_sub(BIGNUM*, const BIGNUM*, const BIGNUM*)'
     if (!BN_sub(&r, &a, &b))
                           ^
src/bignum.h: In function 'const CBigNum operator-(const CBigNum&)':
src/bignum.h:669:43: error: cannot convert 'CBigNum*' to 'const BIGNUM* {aka const bignum_st*}' for argument '1' to 'int BN_is_negative(const BIGNUM*)'
     BN_set_negative(&r, !BN_is_negative(&r));
                                           ^
src/bignum.h: In function 'const CBigNum operator*(const CBigNum&, const CBigNum&)':
src/bignum.h:677:33: error: cannot convert 'CBigNum*' to 'BIGNUM* {aka bignum_st*}' for argument '1' to 'int BN_mul(BIGNUM*, const BIGNUM*, const BIGNUM*, BN_CTX*)'
     if (!BN_mul(&r, &a, &b, pctx))
                                 ^
src/bignum.h: In function 'const CBigNum operator/(const CBigNum&, const CBigNum&)':
src/bignum.h:686:39: error: cannot convert 'CBigNum*' to 'BIGNUM* {aka bignum_st*}' for argument '1' to 'int BN_div(BIGNUM*, BIGNUM*, const BIGNUM*, const BIGNUM*, BN_CTX*)'
     if (!BN_div(&r, NULL, &a, &b, pctx))
                                       ^
src/bignum.h: In function 'const CBigNum operator%(const CBigNum&, const CBigNum&)':
src/bignum.h:695:35: error: cannot convert 'CBigNum*' to 'BIGNUM* {aka bignum_st*}' for argument '1' to 'int BN_nnmod(BIGNUM*, const BIGNUM*, const BIGNUM*, BN_CTX*)'
     if (!BN_nnmod(&r, &a, &b, pctx))
                                   ^
src/bignum.h: In function 'const CBigNum operator<<(const CBigNum&, unsigned int)':
src/bignum.h:703:33: error: cannot convert 'CBigNum*' to 'BIGNUM* {aka bignum_st*}' for argument '1' to 'int BN_lshift(BIGNUM*, const BIGNUM*, int)'
     if (!BN_lshift(&r, &a, shift))
                                 ^
src/bignum.h: In function 'bool operator==(const CBigNum&, const CBigNum&)':
src/bignum.h:715:83: error: cannot convert 'const CBigNum*' to 'const BIGNUM* {aka const bignum_st*}' for argument '1' to 'int BN_cmp(const BIGNUM*, const BIGNUM*)'
 perator==(const CBigNum& a, const CBigNum& b) { return (BN_cmp(&a, &b) == 0); }
                                                                      ^
src/bignum.h: In function 'bool operator!=(const CBigNum&, const CBigNum&)':
src/bignum.h:716:83: error: cannot convert 'const CBigNum*' to 'const BIGNUM* {aka const bignum_st*}' for argument '1' to 'int BN_cmp(const BIGNUM*, const BIGNUM*)'
 perator!=(const CBigNum& a, const CBigNum& b) { return (BN_cmp(&a, &b) != 0); }
                                                                      ^
src/bignum.h: In function 'bool operator<=(const CBigNum&, const CBigNum&)':
src/bignum.h:717:83: error: cannot convert 'const CBigNum*' to 'const BIGNUM* {aka const bignum_st*}' for argument '1' to 'int BN_cmp(const BIGNUM*, const BIGNUM*)'
 perator<=(const CBigNum& a, const CBigNum& b) { return (BN_cmp(&a, &b) <= 0); }
                                                                      ^
src/bignum.h: In function 'bool operator>=(const CBigNum&, const CBigNum&)':
src/bignum.h:718:83: error: cannot convert 'const CBigNum*' to 'const BIGNUM* {aka const bignum_st*}' for argument '1' to 'int BN_cmp(const BIGNUM*, const BIGNUM*)'
 perator>=(const CBigNum& a, const CBigNum& b) { return (BN_cmp(&a, &b) >= 0); }
                                                                      ^
src/bignum.h: In function 'bool operator<(const CBigNum&, const CBigNum&)':
src/bignum.h:719:83: error: cannot convert 'const CBigNum*' to 'const BIGNUM* {aka const bignum_st*}' for argument '1' to 'int BN_cmp(const BIGNUM*, const BIGNUM*)'
 operator<(const CBigNum& a, const CBigNum& b)  { return (BN_cmp(&a, &b) < 0); }
                                                                       ^
src/bignum.h: In function 'bool operator>(const CBigNum&, const CBigNum&)':
src/bignum.h:720:83: error: cannot convert 'const CBigNum*' to 'const BIGNUM* {aka const bignum_st*}' for argument '1' to 'int BN_cmp(const BIGNUM*, const BIGNUM*)'

[number435398]

How do we fix thee BIGNUM error, I think that could help a lot.

[D3m0nKinGx]

How do we fix thee BIGNUM error, I think that could help a lot.

downgrade the libssl version you're using

[number435398]

How do we fix thee BIGNUM error, I think that could help a lot.

downgrade the libssl version you're using

I tried that, but I don't think I was successful, how does one do that?

Edit: and which version does one downgrade to?

[D3m0nKinGx]

How do we fix thee BIGNUM error, I think that could help a lot.

downgrade the libssl version you're using

I tried that, but I don't think I was successful, how does one do that?

Edit: and which version does one downgrade to?

Download the version from openssl.org, go down one version at a time from the one you're using.

Here's a build script you can modify accordingly to your system setup and work from there...

Code:

#!/bin/bash

# Working setup to cross-compile Windows binaries for Qt Coin hosted on a
# Ubuntu 16.04 box using non-Canonical ppas for MXE and Qt5.7:
# deb http://pkg.mxe.cc/repos/apt/debian wheezy main

# Doesn't seem to pass the QT directives through, though.

# Basic path bindings

PATH=/path/to/mxe/usr/bin:$PATH
MXE_PATH=/path/to/mxe
MXE_INCLUDE_PATH=/path/to/mxe/usr/i686-w64-mingw32.static/include
MXE_LIB_PATH=/path/to/mxe/usr/i686-w64-mingw32.static/lib

# Belt and braces

CXXFLAGS="-std=gnu++11 -march=i686"
LDFLAGS="-march=i686"
target="i686-w64-mingw32.static"

# Particulars for cross-compiling

export BOOST_LIB_SUFFIX=-mt
export BOOST_THREAD_LIB_SUFFIX=_win32-mt
export BOOST_INCLUDE_PATH=${MXE_INCLUDE_PATH}/boost
export BOOST_LIB_PATH=${MXE_LIB_PATH}
export OPENSSL_INCLUDE_PATH=${MXE_INCLUDE_PATH}/openssl
export OPENSSL_LIB_PATH=${MXE_LIB_PATH}
export BDB_INCLUDE_PATH=${MXE_INCLUDE_PATH}
export BDB_LIB_PATH=${MXE_LIB_PATH}
export MINIUPNPC_INCLUDE_PATH=${MXE_INCLUDE_PATH}
export MINIUPNPC_LIB_PATH=${MXE_INCLUDE_LIB}
export MINIUPNP_STATICLIB=${MXE_INCLUDE_LIB}
export QRENCODE_INCLUDE_PATH=/path/to/qrencode/install/include
export QRENCODE_LIB_PATH=/path/to/qrencode/install/lib
export SECP256K1_LIB_PATH=/home/ader/coins/AmsterdamCoin/src/secp256k1/libs
export SECP256K1_INCLUDE_PATH=/home/ader/coins/AmsterdamCoin/src/secp256k1/include
export QMAKE_LRELEASE=${MXE_PATH}/usr/${target}/qt5/bin/lrelease

# Call qmake to create Makefile.[Release|Debug]

${target}-qmake-qt5 \
    MXE=1 \
    USE_O3=1 \
    USE_QRCODE=1 \
    USE_UPNPC=1 \
    FIRST_CLASS_MESSAGING=1 \
    RELEASE=1 \
    BOOST_LIB_SUFFIX=${BOOST_LIB_SUFFIX} \
    BOOST_THREAD_LIB_SUFFIX=${BOOST_THREAD_LIB_SUFFIX} \
    BOOST_INCLUDE_PATH=${BOOST_INCLUDE_PATH} \
    BOOST_LIB_PATH=${BOOST_LIB_PATH} \
    OPENSSL_INCLUDE_PATH=${OPENSSL_INCLUDE_PATH} \
    OPENSSL_LIB_PATH=${OPENSSL_LIB_PATH} \
    BDB_INCLUDE_PATH=${BDB_INCLUDE_PATH} \
    BDB_LIB_PATH=${BDB_LIB_PATH} \
    MINIUPNPC_INCLUDE_PATH=${MINIUPNPC_INCLUDE_PATH} \
    MINIUPNPC_LIB_PATH=${MINIUPNPC_LIB_PATH} \
    MINIUPNP_STATICLIB=${MINIUPNP_STATICLIB} \
    QRENCODE_INCLUDE_PATH=/path/to/qrencode/install/include \
    QRENCODE_LIB_PATH=/path/to/qrencode/install/lib \
    QMAKE_LRELEASE=${QMAKE_LRELEASE} COIN-name.pro 
    SECP256K1_LIB_PATH=/home/ader/coins/DEPS/src/secp256k1/.libs \
    SECP256K1_INCLUDE_PATH=/home/ader/coins/DEPS/src/secp256k1/include \

# Go for it. If successful, Windows binary will be written out to ./release/COin-name-qt.exe
cd src/leveldb
TARGET_OS=NATIVE_WINDOWS make libleveldb.a libmemenv.a CC=~path/to/mxe/usr/bin/i686-w64-mingw32.static-gcc CXX=/path/to/mxe/usr/bin/i686-w64-mingw32.static-g++

make -f Makefile.Release  CXXFLAGS="-DQT_GUI -DQT_NO_PRINTER -std=gnu++11 -march=x86_64" LDFLAGS="-march=x86_64"

[widecash]

Could you provide detail step to downgrade Openssl version 1 ?

[D3m0nKinGx]

Could you provide detail step to downgrade Openssl version 1 ?

just choose a version lower than what you use now on openssl.org

and update the code below accordingly to the version. so you probably want to use openssl 1.0.2g or lower

and change the url for the "wget" command to match with the download link on openssl.org

Code:

#!/bin/bash

# Create build directory

mkdir $HOME/dev

# Go in it

cd $HOME/dev

# Download openssl source

wget https://www.openssl.org/source/old/1.0.2/openssl-1.0.2g.tar.gz

# Extract

tar xvf openssl-1.0.2g.tar.gz

# Enter source directory

cd openssl-1.0.2g

# Compile and install

./config --prefix=$HOME/dev/openssl-1.0.2g zlib no-shared

make depend

make -j$(nproc) && make -j$(nproc) test && make install

Afterwards in the previous script i posted, just point the paths to the include and lib subdirectories of openssl on the OPENSSL_LIB_PATH AND OPENSSL_INCLUDE_PATHS respectively

[widecash]

Hi @D3m0nKinGx

What it means for command below ?

make -j$(nproc) && make -j$(nproc) test && make install

It is optional ?

Regards,

[D3m0nKinGx]

Hi @D3m0nKinGx

What it means for command below ?

make -j$(nproc) && make -j$(nproc) test && make install

It is optional ?

Regards,

make -j$(nproc)  = build source with all availabe cpu cores; nproc = # of processors

make -j$(nproc) test = build and run tests (yes you must do this, to make sure that openssl is properly working or you will have serious security vulnerabilities

make install = installs the libraries and necessary files to use openssl in the specified directory that was pointed to in ./config --prefix=$HOME/dev/openssl-1.0.2g

[widecash]

When compile error as below:

Removed plural forms as the target language has less forms.
If this sounds wrong, possibly the target language is not set or recognized.
Removed plural forms as the target language has less forms.
If this sounds wrong, possibly the target language is not set or recognized.
Removed plural forms as the target language has less forms.
If this sounds wrong, possibly the target language is not set or recognized.
make: Makefile.Releas: No such file or directory
make: *** No rule to make target 'Makefile.Releas'.  Stop.

[number435398]

Could you provide detail step to downgrade Openssl version 1 ?

just choose a version lower than what you use now on openssl.org

and update the code below accordingly to the version. so you probably want to use openssl 1.0.2g or lower

and change the url for the "wget" command to match with the download link on openssl.org

Code:

#!/bin/bash

# Create build directory

mkdir $HOME/dev

# Go in it

cd $HOME/dev

# Download openssl source

wget https://www.openssl.org/source/old/1.0.2/openssl-1.0.2g.tar.gz

# Extract

tar xvf openssl-1.0.2g.tar.gz

# Enter source directory

cd openssl-1.0.2g

# Compile and install

./config --prefix=$HOME/dev/openssl-1.0.2g zlib no-shared

make -j$(nproc) && make -j$(nproc) test && make install

Afterwards in the previous script i posted, just point the paths to the include and lib subdirectories of openssl on the OPENSSL_LIB_PATH AND OPENSSL_INCLUDE_PATHS respectively

Followed both of your posts, same issue.  Though I'm confused, the SSL history only goes back to 0.9.6 back in 2016, but wasn't it being used years before that?  Openssl.com doesn't appear to show anything older.

Update:
Well it now seems as though it didn't work, but after ./compile-<coin>.sh, and running make, I got:

Code:

/bin/sh: 1: i686-w64-mingw32.static-ranlib: not found

[widecash]

How do we fix thee BIGNUM error, I think that could help a lot.

downgrade the libssl version you're using

I tried that, but I don't think I was successful, how does one do that?

Edit: and which version does one downgrade to?

Download the version from openssl.org, go down one version at a time from the one you're using.

Here's a build script you can modify accordingly to your system setup and work from there...

Code:

#!/bin/bash

# Working setup to cross-compile Windows binaries for Qt Coin hosted on a
# Ubuntu 16.04 box using non-Canonical ppas for MXE and Qt5.7:
# deb http://pkg.mxe.cc/repos/apt/debian wheezy main

# Doesn't seem to pass the QT directives through, though.

# Basic path bindings

PATH=/path/to/mxe/usr/bin:$PATH
MXE_PATH=/path/to/mxe
MXE_INCLUDE_PATH=/path/to/mxe/usr/i686-w64-mingw32.static/include
MXE_LIB_PATH=/path/to/mxe/usr/i686-w64-mingw32.static/lib

# Belt and braces

CXXFLAGS="-std=gnu++11 -march=i686"
LDFLAGS="-march=i686"
target="i686-w64-mingw32.static"

# Particulars for cross-compiling

export BOOST_LIB_SUFFIX=-mt
export BOOST_THREAD_LIB_SUFFIX=_win32-mt
export BOOST_INCLUDE_PATH=${MXE_INCLUDE_PATH}/boost
export BOOST_LIB_PATH=${MXE_LIB_PATH}
export OPENSSL_INCLUDE_PATH=${MXE_INCLUDE_PATH}/openssl
export OPENSSL_LIB_PATH=${MXE_INCLUDE_PATH}/openssl/lib
export BDB_INCLUDE_PATH=${MXE_INCLUDE_PATH}
export BDB_LIB_PATH=${MXE_LIB_PATH}
export MINIUPNPC_INCLUDE_PATH=${MXE_INCLUDE_PATH}
export MINIUPNPC_LIB_PATH=${MXE_INCLUDE_LIB}
export MINIUPNP_STATICLIB=${MXE_INCLUDE_LIB}
export QRENCODE_INCLUDE_PATH=/path/to/qrencode/install/include
export QRENCODE_LIB_PATH=/path/to/qrencode/install/lib
export SECP256K1_LIB_PATH=/home/ader/coins/AmsterdamCoin/src/secp256k1/libs
export SECP256K1_INCLUDE_PATH=/home/ader/coins/AmsterdamCoin/src/secp256k1/include
export QMAKE_LRELEASE=${MXE_PATH}/usr/${target}/qt5/bin/lrelease

# Call qmake to create Makefile.[Release|Debug]

${target}-qmake-qt5 \
    MXE=1 \
    USE_O3=1 \
    USE_QRCODE=1 \
    FIRST_CLASS_MESSAGING=1 \
    RELEASE=1 \
    O3=1 \
    USE_QRCODE=1 \
    FIRST_CLASS_MESSAGING=1 \
    RELEASE=1 \
    USE_UPNPC=1 \
    BOOST_LIB_SUFFIX=${BOOST_LIB_SUFFIX} \
    BOOST_THREAD_LIB_SUFFIX=${BOOST_THREAD_LIB_SUFFIX} \
    BOOST_INCLUDE_PATH=${BOOST_INCLUDE_PATH} \
    BOOST_LIB_PATH=${BOOST_LIB_PATH} \
    OPENSSL_INCLUDE_PATH=${OPENSSL_INCLUDE_PATH} \
    OPENSSL_LIB_PATH=${OPENSSL_LIB_PATH} \
    BDB_INCLUDE_PATH=${BDB_INCLUDE_PATH} \
    BDB_LIB_PATH=${BDB_LIB_PATH} \
    MINIUPNPC_INCLUDE_PATH=${MINIUPNPC_INCLUDE_PATH} \
    MINIUPNPC_LIB_PATH=${MINIUPNPC_LIB_PATH} \
    MINIUPNP_STATICLIB=${MINIUPNP_STATICLIB} \
    QRENCODE_INCLUDE_PATH=/path/to/qrencode/install/include \
    QRENCODE_LIB_PATH=/path/to/qrencode/install/lib \
    QMAKE_LRELEASE=${QMAKE_LRELEASE} COIN-name.pro 
    SECP256K1_LIB_PATH=/home/ader/coins/DEPS/src/secp256k1/.libs \
    SECP256K1_INCLUDE_PATH=/home/ader/coins/DEPS/src/secp256k1/include \

# Go for it. If successful, Windows binary will be written out to ./release/COin-name-qt.exe
cd src/leveldb
TARGET_OS=NATIVE_WINDOWS make libleveldb.a libmemenv.a CC=~path/to/mxe/usr/bin/i686-w64-mingw32.static-gcc CXX=/path/to/mxe/usr/bin/i686-w64-mingw32.static-g++

I followed your instruction. it showed error as below:

sh: 1: /path/to/mxe/usr/i686-w64-mingw32.static/qt5/bin/lrelease: not found
RCC: Error in 'src/qt/bitcoin.qrc': Cannot find file 'locale/bitcoin_ar.qm'
RCC: Error in 'src/qt/bitcoin.qrc': Cannot find file 'locale/bitcoin_ca_ES.qm'
RCC: Error in 'src/qt/bitcoin.qrc': Cannot find file 'locale/bitcoin_cs.qm'
RCC: Error in 'src/qt/bitcoin.qrc': Cannot find file 'locale/bitcoin_da.qm'
RCC: Error in 'src/qt/bitcoin.qrc': Cannot find file 'locale/bitcoin_de.qm'

[D3m0nKinGx]

@widecash

• PATH=/path/to/mxe/usr/bin:$PATH
• MXE_PATH=/path/to/mxe
• MXE_INCLUDE_PATH=/path/to/mxe/usr/i686-w64-mingw32.static/include
• MXE_LIB_PATH=/path/to/mxe/usr/i686-w64-mingw32.static/lib

You need to change  /path/to  to match with the locations of those directories

then

export QMAKE_LRELEASE=${MXE_PATH}/usr/${target}/qt5/bin/lrelease

will properly point to the lrelease binary

[widecash]

@widecash

• PATH=/path/to/mxe/usr/bin:$PATH
• MXE_PATH=/path/to/mxe
• MXE_INCLUDE_PATH=/path/to/mxe/usr/i686-w64-mingw32.static/include
• MXE_LIB_PATH=/path/to/mxe/usr/i686-w64-mingw32.static/lib

You need to change  /path/to  to match with the locations of those directories

then

export QMAKE_LRELEASE=${MXE_PATH}/usr/${target}/qt5/bin/lrelease

will properly point to the lrelease binary

It is error as below:

Removed plural forms as the target language has less forms.
If this sounds wrong, possibly the target language is not set or recognized.
Removed plural forms as the target language has less forms.
If this sounds wrong, possibly the target language is not set or recognized.
Project MESSAGE: Building with QRCode support
Project MESSAGE: Building with UPNP support
Project MESSAGE: Building O3 optimization flag
Removed plural forms as the target language has less forms.
If this sounds wrong, possibly the target language is not set or recognized.
Removed plural forms as the target language has less forms.
If this sounds wrong, possibly the target language is not set or recognized.
Removed plural forms as the target language has less forms.
If this sounds wrong, possibly the target language is not set or recognized.

[D3m0nKinGx]

@widecash

• PATH=/path/to/mxe/usr/bin:$PATH
• MXE_PATH=/path/to/mxe
• MXE_INCLUDE_PATH=/path/to/mxe/usr/i686-w64-mingw32.static/include
• MXE_LIB_PATH=/path/to/mxe/usr/i686-w64-mingw32.static/lib

You need to change  /path/to  to match with the locations of those directories

then

export QMAKE_LRELEASE=${MXE_PATH}/usr/${target}/qt5/bin/lrelease

will properly point to the lrelease binary

It is error as below:

Removed plural forms as the target language has less forms.
If this sounds wrong, possibly the target language is not set or recognized.
Removed plural forms as the target language has less forms.
If this sounds wrong, possibly the target language is not set or recognized.
Project MESSAGE: Building with QRCode support
Project MESSAGE: Building with UPNP support
Project MESSAGE: Building O3 optimization flag
Removed plural forms as the target language has less forms.
If this sounds wrong, possibly the target language is not set or recognized.
Removed plural forms as the target language has less forms.
If this sounds wrong, possibly the target language is not set or recognized.
Removed plural forms as the target language has less forms.
If this sounds wrong, possibly the target language is not set or recognized.

Those are warnings not errors, and can be ignored.

[widecash]

@widecash

• PATH=/path/to/mxe/usr/bin:$PATH
• MXE_PATH=/path/to/mxe
• MXE_INCLUDE_PATH=/path/to/mxe/usr/i686-w64-mingw32.static/include
• MXE_LIB_PATH=/path/to/mxe/usr/i686-w64-mingw32.static/lib

You need to change  /path/to  to match with the locations of those directories

then

export QMAKE_LRELEASE=${MXE_PATH}/usr/${target}/qt5/bin/lrelease

will properly point to the lrelease binary

It is error as below:

Removed plural forms as the target language has less forms.
If this sounds wrong, possibly the target language is not set or recognized.
Removed plural forms as the target language has less forms.
If this sounds wrong, possibly the target language is not set or recognized.
Project MESSAGE: Building with QRCode support
Project MESSAGE: Building with UPNP support
Project MESSAGE: Building O3 optimization flag
Removed plural forms as the target language has less forms.
If this sounds wrong, possibly the target language is not set or recognized.
Removed plural forms as the target language has less forms.
If this sounds wrong, possibly the target language is not set or recognized.
Removed plural forms as the target language has less forms.
If this sounds wrong, possibly the target language is not set or recognized.

Those are warnings not errors, and can be ignored.

It does not generated .exe file in released folder why ?

/mnt/wch# ./compile-db.sh
Project MESSAGE: Building with QRCode support
Project MESSAGE: Building with UPNP support
Project MESSAGE: Building O3 optimization flag
Removed plural forms as the target language has less forms.
If this sounds wrong, possibly the target language is not set or recognized.
Removed plural forms as the target language has less forms.
If this sounds wrong, possibly the target language is not set or recognized.
Removed plural forms as the target language has less forms.
If this sounds wrong, possibly the target language is not set or recognized.
Project MESSAGE: Building with QRCode support
Project MESSAGE: Building with UPNP support
Project MESSAGE: Building O3 optimization flag
Removed plural forms as the target language has less forms.
If this sounds wrong, possibly the target language is not set or recognized.
Removed plural forms as the target language has less forms.
If this sounds wrong, possibly the target language is not set or recognized.
Removed plural forms as the target language has less forms.
If this sounds wrong, possibly the target language is not set or recognized.
Project MESSAGE: Building with QRCode support
Project MESSAGE: Building with UPNP support
Project MESSAGE: Building O3 optimization flag
Removed plural forms as the target language has less forms.
If this sounds wrong, possibly the target language is not set or recognized.
Removed plural forms as the target language has less forms.
If this sounds wrong, possibly the target language is not set or recognized.
Removed plural forms as the target language has less forms.
If this sounds wrong, possibly the target language is not set or recognized.
make: 'libleveldb.a' is up to date.
make: 'libmemenv.a' is up to date.

[D3m0nKinGx]

compile-db.sh  ?  Is this just your script for building the berkeley DB ? That's from the instructions on page 1 of this thread ?