我用QT自帶的工具*deployqt把工程enVocabulary在mac，windows，ubuntu上打包，出現了一些問題。
下面是一些bug記錄。

SQlite Mysql的依賴問題。

WARNING: Plugin "libqsqlodbc.dylib" uses private API and is not Mac App store compliant.
WARNING: Plugin "libqsqlpsql.dylib" uses private API and is not Mac App store compliant.
ERROR: no file at "/opt/local/lib/mysql55/mysql/libmysqlclient.18.dylib"
ERROR: no file at "/usr/local/lib/libpq.5.dylib"
 

聽說這是QT自身的bug，使用了SQlite則會需要用到Mysql的庫檔案，不用管。
直接macdeployqt走起。

QML程式打包問題

執行程式，窗體含有QML的部分是空白的。

module "QtQuick.Window" is not installed
module "QtQuick.Controls" is not installed
module "QtQuick" is not installed
...

搜尋後，發現系統的QML路徑是/Users/weiyang/Qt5.9.2/5.9.2/clang_64/qml
打包後已經有framework：./enVocabulary.app/Contents/Frameworks/QtQuick.framework

weiyangdeMacBook-Air:enVocabulary weiyang$ find enVocabulary.app/ -name *qml
weiyangdeMacBook-Air:enVocabulary weiyang$ 

居然沒有qml檔案！
在stack overflow上找到相關的問題：https://stackoverflow.com/questions/17475788/qt-5-1-and-mac-bug-making-macdeployqt-not-working-properly/28221423#28221423

No rule to make target

類似於這樣的報錯：

mingw32-make[1]: *** No rule to make target '../enVocabulary/image/res.rc', needed by 'OBJ/res_res.o'.  Stop.

不一定是Makefile的問題，很有可能是根本沒有檔案../enVocabulary/image/res.rc（名字寫錯了）

qt.network.ssl: QSslSocket: cannot resolve

我的程式使用了network相關的類，然後執行報錯：

qt.network.ssl: QSslSocket: cannot resolve CRYPTO_num_locks
qt.network.ssl: QSslSocket: cannot resolve CRYPTO_set_id_callback
qt.network.ssl: QSslSocket: cannot resolve CRYPTO_set_locking_callback
qt.network.ssl: QSslSocket: cannot resolve ERR_free_strings
...
qt.network.ssl: QSslSocket: cannot resolve SSLv3_client_method
qt.network.ssl: QSslSocket: cannot resolve SSLv23_client_method
qt.network.ssl: QSslSocket: cannot resolve SSLv2_server_method
qt.network.ssl: QSslSocket: cannot resolve SSLv3_server_method
qt.network.ssl: QSslSocket: cannot resolve SSLv23_server_method
qt.network.ssl: QSslSocket: cannot resolve X509_STORE_CTX_get_chain
qt.network.ssl: QSslSocket: cannot resolve OPENSSL_add_all_algorithms_noconf
qt.network.ssl: QSslSocket: cannot resolve OPENSSL_add_all_algorithms_conf
qt.network.ssl: QSslSocket: cannot resolve SSLeay
qt.network.ssl: QSslSocket: cannot resolve SSLeay_version

當前的QT版本是5.9.2，我用程式碼列印SSL相關的資訊：

qDebug()<<"SSL version use for build: "<<QSslSocket::sslLibraryBuildVersionString();
qDebug()<<"SSL version use for run-time: "<<QSslSocket::sslLibraryVersionString();
qDebug()<<QSslSocket::supportsSsl()<<endl;
qDebug()<<QCoreApplication::libraryPaths();

結果：

SSL version use for build:  "OpenSSL 1.0.1e-fips 11 Feb 2013"
qt.network.ssl: Incompatible version of OpenSSL
SSL version use for run-time:  ""
false 

在stack overflow上一頓查詢，什麼重新下載openssl再編譯，QT元件修復等方法都嘗試了一遍，沒用。

然後逛qt官網，希望最新版本的QT能解決這個問題。http://blog.qt.io/blog/2017/12/07/qt-5-10-released/
果然讓我找到了相關的資訊：

SSL version use for build:  "OpenSSL 1.0.2k-fips  26 Jan 2017"
SSL version use for run-time:  "OpenSSL 1.0.2g  1 Mar 2016"
true 

但我在後面的log（考慮到容錯性，我加了許多的DEBUG）中發現了新的問題：The issuer certificate of a locally looked up certificate could not be found
這是為什麼？我在terminal中啟動openssl，然後它提示找不到庫檔案，我將libcrypto.so, libssl.so相關的四個檔案全部放進/usr/lib中，然後可以正常啟動了。

parallels@parallels-vm:~/Downloads/openssl-1.1.1-pre4$ openssl version
OpenSSL 1.1.1-pre4 (beta) 3 Apr 2018

但是Qt執行報錯：

SSL version use for build:  "OpenSSL 1.0.2k-fips  26 Jan 2017"
...
qt.network.ssl: QSslSocket: cannot resolve OPENSSL_add_all_algorithms_conf
qt.network.ssl: QSslSocket: cannot resolve SSLeay
qt.network.ssl: Incompatible version of OpenSSL
...
qt.network.ssl: Incompatible version of OpenSSL
SSL version use for run-time:  ""   SSL version use for run-time: 
false 

版本不相容，好煩。。。
參照之前的log，我下載了openssl 1.0.2g：https://www.openssl.org/source/old/1.0.2/
編譯，安裝，然後建立軟連線：ln -s /home/parallels/Downloads/openssl-1.0.2g/apps/openssl /usr/local/bin/openssl
但是版本不相容的錯誤仍然存在！回想自己是將libcrypto.so, libssl.so相關的四個檔案全部放進/usr/lib中然後就出現了相容性問題。我又將/usr/lib路徑下的*crypto.so*,*ssl.so*的四個檔案統統刪除了。
然後執行，perfect!