Mingw/Cxxtest Bizarre Errors

MinGW / CxxTest bizarre errors

I also recently updated MinGW and ran into very very similar problems. After some research I found this question on SO and tried replacing -std=c++11 with -std=gnu++11. This resolved the issue for me. Hope that helps!

G++ updated on MingW gets massive error messages

Thanks to @SilencePhil, I found a relevant StackOverflow answer. This question is not the same question, but has the same solution, namely to replace std=c++11 with std=gnu++11 in the call to g++.

A problem when compiling a simple C++ program

Finally, I fixed the problem. The reason for this problem is that I installed codeblocks.

codeblocks adds environment variables to my computer, like C_INCLUDEDE_PATH, CPLUS_INCLUDE_PATH, and LIBRARY_PATH. When I deleted these environment variables, the problem was fixed.

GEOS build errors

The solution is I adopted is to change CXXFLAGS in Makefile per the SE suggestion at G++ updated on MingW gets massive error messages.

Searched for CXXFLAGS in Makefile
which looked like

CXXFLAGS = -g -O2

I changed it to

CXXFLAGS = -g -O2 -std=gnu++11 -c -Wall 

Since there are tens of Makefiles in the sub folders,I changed them using python batch script at one go.

import os, fnmatch
def findReplace(directory, find, replace, filePattern):
    for path, dirs, files in os.walk(os.path.abspath(directory)):
        for filename in fnmatch.filter(files, filePattern):
            filepath = os.path.join(path, filename)
            with open(filepath) as f:
                s = f.read()
            s = s.replace(find, replace)
            with open(filepath, "w") as f:
                f.write(s)

findReplace(r"C:\MinGW\git_rep\geos-3.5.0", "CXXFLAGS = -g -O2", "CXXFLAGS = -g -O2 -std=gnu++11 -c -Wall", "Makefile") 

Macro define about cxxtest

I don't have access to MS Visual Studio 6, but isn't that a little on the archaic side? It was released in June 1998 according to Wikipedia, and the first C++ standard was released in November 1998. So, I would suspect that your C++ compiler is simply too old to be supported by cxxtest.

You could look at the option to cxxgentest:

--no-std              Do not use standard library (even if found in tests).

You can check other options with cxxgentest --help.

---

It isn't much help to tell you that cxxtest 4.0.3 worked find on MacOS X 10.7.3 with G++ i686-apple-darwin11-llvm-g++-4.2 (GCC) 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2335.15.00), but it did — or, at least, your sample program compiled to object file without warnings under:

bin/cxxtestgen -o cxt.cpp test.simple.cpp
g++ -I. -c -Wall -Wextra -o cxt.o cxt.cpp

CxxTest compiling, missing main

I have found a solution after looking at a python script cxxtestgen.py which is used to generate runner.cpp. There is an if statement at the beginning of a writeMain(output) function which writes main function in an output file:

if not (options.gui or options.runner):
       return

At least one of the two options, --runner=CLASS and --gui=CLASS is required when generating output file from test suites. After adding one option everything runs fine.

---

Related Topics