I am trying to compile some code using Octave and I need to link some .lib files. I can't seem to get the link to work properly and when I compile I am getting errors about references to functions that don't exist. This is what lead me to believe that my links are not working.
this is the command I am running:
mex -v someFile.cpp -IC:\path\to\includes -LC:\path\to\libs -lmylib.lib
I am running Octave 3.2.4 in Windows.
Thanks.
Figured it out. My path to the libs parameter in that command line string needed to be before the file name. The following works:
mex -v -IC:\path\to\includes -LC:\path\to\libs someFile.cpp -lmylib.lib
Related
I am trying to install the "moralis-admin-cli" program to make my account and I have to add it the path that the Terminal gave me so it will download in the proper directory.
I did have a problem where the cursor was but that has been overcome.
So when I type in the code as the tutorial tells this how the tutorial shows how to do it and this is the error:
C:\metadata-static-app>npm install -g moralis-admin-cli
'npm' is not recognized as an internal command, operable program or batch file.
I just need to find a way to install this moralis program in the "metadata-static-app" directory on my computer so I can move on to the next step.
Can you help me.
Add node.js on your environment, the npm command will work!
I am trying to run algolia for the first time but it seems that there is something wrong with my environment. I followed the detailed explanation here https://community.algolia.com/jekyll-algolia/getting-started.html.
I installed and configured everything that is needed from the previous steps but when I run the command
ALGOLIA_API_KEY=xxxxxxxxxxxxxx bundle exec jekyll algolia
I get an error:
'ALGOLIA_API_KEY' is not recognized as an internal or external command,
operable program or batch file.
I have been rereading the documentation for both jekyll and angolia but couldn't find anything that could be helpful.
Since you're running on Windows, you cannot set an environment variable for your command like you can do on UNIX.
As advised in this question, Setting and using variable within same command line in Windows cmd.exe, I believe you could use
set ALGOLIA_API_KEY=xxxxxxxxxxxxxx && bundle exec jekyll algolia
I tried a lot of things I read on documentations or tutorials... But I still can't cross-compile Qt with the MySQL library driver. Story begins:
I have to cross-compile Qt from Linux to Windows (32bits) using MinGW (i686-w64-mingw32- prefix to be precise). I downloaded qtbase-opensource-src-5.9.4 and started to work like that:
$ ./configure -prefix [...]/qt-5.9.4 -xplatform win32-g++ -device-option CROSS_COMPILE=/usr/bin/i686-w64-mingw32- -opengl desktop -no-sql-odbc -sql-sqlite -enable-shared -nomake examples -nomake tests -release
And it worked. Then, make and make install worked too. But I figured out that there was only the SQLite ".dll" in the plugins/sqldrivers repository. So I tried to compile the MySQL driver and... How can I do that?? If I add -sql-mysql to my ./configure ... call, I have to following error:
ERROR: Feature 'sql-mysql' was enabled, but the pre-condition 'libs.mysql' failed.
I downloaded MySQL library from the official website to get mysql-5.7.21-win32.zip. But how to link it with qtbase sources? Adding MYSQL_INCDIR=[...]/mysql-5.7.21-win32/include and MYSQL_LIBDIR=[...]/mysql-5.7.21-win32/lib or just MYSQL_PREFIX=[...]/mysql-5.7.21-win32 to my ./configure ... command results to the same error message.
Any idea please?
EDIT:
I tried to compile the driver like that (with the qmake I built previously):
$ cd qtbase-opensource-src-5.9.4/src/plugins/sqldrivers/mysql
$ [/*prefix of my previous build*/]/qt-5.9.4/bin/qmake .
And the result is:
Project ERROR: Library 'mysql' is not defined.
Ok everyone, I found the solution: do a clean checkout or add -recheck-all to the ./configure command when you want to add a lib like MySQL in my case. Easy isn't it? To make it clear, here is the command I used:
./configure -prefix [...] -xplatform win32-g++ -device-option CROSS_COMPILE=/usr/bin/i686-w64-mingw32- -opengl desktop -no-sql-odbc -sql-sqlite -plugin-sql-mysql MYSQL_PREFIX=[...] -enable-shared -nomake examples -nomake tests -release -recheck-all
That was just a refresh problem, but I prefer to let this answer because it's pretty hard to realize.
Instead of what you tried in your EDIT, should I think be:
$ cd qtbase-opensource-src-5.9.4/src/plugins/sqldrivers
qmake -- MYSQL_PREFIX= [...]/mysql-5.7.21-win32/include
I have some C code that #includes the file <mysql/mysql.h>. I am running on a Mac, and cannot figure out how to get mysql installed (after running the solution found on SO, the mysql directory does not even exist in the system library). I was able to download MySQL from the source code, and now I have a mysql.h file-- in the "include" directory of the source code.
However, moving this file into the system library alone will obviously not make my program work. I expect that I need to compile the library (which I've done), and to move the binary file somewhere, in order to be linkable to my program.
As per #RustyX's suggestion, I installed the Mac MySQL package. That put a copy of mysql.h into the /usr/local/mysql-5.7.19-macos10.12-x86_64/include/ directory. However:
1) I am using gcc to compile the .c file. I am not sure how to configure gcc to include the directory in question. I tried
-L(directory path)-- both for the installed Mac MySQL package, and the MySQL source code I downloaded-- but I get the following error:
ld: library not found for -lmysqlclient
Is there another path I would include for mysqlclient? Or another package to install?
2) Even if I do include it, it will still not find the file since the called-for filename is <mysql/mysql.h>, and the filename it will find is <include/mysql.h>. Since the file is used by others, is the best course of action here to rename the include directory to mysql? Or to change the path in the .c file, and then change it back every time before committing?
Have you tried a statement like this,
#include <mysql.h> //in your program
To compile and run
gcc -w -c -g -I/usr/include/mysql filename.c
gcc -o filename filename.o -L/usr/lib64/mysql -lmysqlclient
./filename (input params)
I have installed MySQL 5.1.49 and the binary QT 4.6.2 for Visual Studio 2008. I configured Qt as follow:
C:\Qt>configure -static -no-webkit -plugin-sql-sqlite -plugin-sql-mysql -I C:\mysql\include -L C:\mysql\lib\optC:\Qt\src\plugins\sqldriver
Everything went fine, no errors. When I run nmake on my application everything runs fine, no errors as well. However when I execute my application under the debug folder I get a popup saying "Driver not loaded" (I have QT += sql under my project.pro)
If I goto C:\Qt\plugins\sqldrivers I dont see any libmysql, or any *mysql.dll only qsqlmysql.obj and qsqlmysqld.obj (there are files such as: qsqlite4.dll, qsqlpsql4.dll etc.)
I did try to build it manually by doing:
cd %QTDIR%\src\plugins\sqldrivers\mysql
C:\Qt\src\plugins\sqldrivers\mysql>qmake "INCLUDEPATH+=C:\mysql\include" "LIBS+=C:\mysql\lib\opt\libmysql.lib" mysql.pro
nmake
Everything compiles fine, no errors. However, I still don't find any libmysql.dll generated. Only file found is under C:\mysql\bin\libmySQL.dll
I have all the includes for MySQL under C:\mysql\include and the libraries under C:\mysql\lib\opt
Any ideas what could be the problem? Thanks
Using -static prevents you from using plugins at runtime. You will need to change
-plugin-sql-mysql
to
-qt-sql-mysql
and have it compiled in.
B1.
Have you tried using qt source instead of the binary one? I had a similar issue, however I was getting compile errors.