compilation

问题 When I build netty from source, the build fails at [INFO] Netty/Transport/Native/Epoll ....................... FAILURE [ 5.927 s] The Error message that I get is [ERROR] Failed to execute goal org.fusesource.hawtjni:maven-hawtjni-plugin:1.10:build (build-native-lib) on project netty-transport-native-epoll: build failed: org.apache.maven.plugin.MojoExecutionException: Extracted package did not look like it contained a native source build. -> [Help 1] 回答1: Looks like you want to compile a

问题 The whole day I've been seaching for the System.CodeDom.Compiler - namespace in nuget-packages. I only found the Microsoft.CodeDom.Providers.DotNetCompilerPlatform (Roslyn ?) but it seems as the namespace I'm searching for is not included. Does anyone know if there's a package containing that namespace? Edit: This is the code I got for now. But Visual Studio 2015 cannot find the CodeDom in namespace System using System; using System.CodeDom.Compiler; using System.Collections.Generic; using

问题 Two of the libraries I am including share the same definition of a macro in each of their respective .h files. #define MAX <some value> //first definition of MAX in a file #define MAX <some other value> //second definition of MAX in a *different* file and in compilation I get .../httpd.h:43:1: warning: "MAX" redefined and .../opencv2/core/types_c.h:272:1: warning: this is the location of the previous definition I've checked each of these headers, and they have the #include guards. What is the

问题 I downloaded this source code (.zip) and would like to compile it on my Mac (OSX 10.11.2) with an XCode Version 7.2 (7C68). I started to compile the file fdist.c with gcc -o fdist2 -O fdist.c -lm but it returns a long series of warnings and errors (see below). Looking at the file I see that indeed it does not quite look as the kind of code I am used to. Typically, it appears that the type of object the functions returned are unspecified. The README_fdist2 did not help much. There are

问题 I am working on an iOS project and include ifaddrs.h in one of my files using #include <ifaddrs.h> Recently, my code stopped working (in particular, getifaddrs ) and I noticed that BLWebSocketsServer delivers a getifaddrs.h/.c which seems to cause issues. If I remove those two files from XCodes "Headers" and "Compile Sources" phase, my code starts working again. Now, for my questions: Why does this happen? getifaddrs.h is not <ifaddrs.h> , so this shouldn'at affect my code, should it? Is

问题 I know it might be not the best place for this question but,am doing a master thesis on Smart Traffic controllers , I found this simulator which is written in java, it has been used in many papers I've read , but for some reason I can't/it wouldn't be compiled , anyone can tell me why ? it can be found at http://sourceforge.net/projects/stoplicht/ 回答1: This was made with an old version of Java (pre 1.5) It uses enum as a variable name. Need to as (javac tells you) give command : javac -source

问题 I know there are many supposed duplicates for this matter, but since none of the answers worked for me I'd rather ask another question. My project won't compile with CMake: Found package configuration file: /usr/share/OpenCV/OpenCVConfig.cmake but it set OpenCV_FOUND to FALSE so package "OpenCV" is considered to be NOT FOUND. My CMakeLists.txt is as follows: cmake_minimum_required( VERSION 2.8 ) project( Tests ) set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11" ) if(WIN32) # set( CMAKE

问题 Generally speaking, when writing a llvm frontend, one will take an AST and first check that its semantics is well-defined. After this, one will take the AST and perform the IR build phase. I was wondering, how realistic is to perform directly the IR build phase onto the AST, and if errors are found during the build process, revert any partial changes to the module object? I assume something like this would be required: remove defined Types remove defined Globals anything else i'm missing? Any

问题 So in my compilers class we are using JDT to represent our subset of Java. I already have assignment working and so I thought it would be a good idea to implement increment/decrement by lowering it to assignment. I realized while typing this that because the expression being incremented might have an effect this is not 100% valid. Still I want to do something like this for for loops as well. So I have this code @Override public boolean visit(final PostfixExpression node) { //in this we lower

问题 What is the difference between compile errors and run-time errors in SQL Server? How these errors are distinguished in SQL Server? 回答1: compile errors occur during the process of generating an execution plan. Run time errors occur when the plan is generated and is being executed. The only way of distinguishing between the two is whether or not a plan is generated AFAIK. Examples /*Parse Error*/ SELEC * FROM master..spt_values GO /*Bind Error*/ SELECT * FROM master..spt_values_ GO /*Compile