I'm trying to compile a library on windows with mingw, that uses boost.
I compiled boost with:
bootstrap mingw
b2 toolset=gcc
After that I build the library with cmake and mingw.
Building the dll itself works fine, but when I try to build the tests, I get:
C:/boost/boost_1_55_0/boost/test/utils/runtime/config.hpp:95:51: error: 'putenv'
was not declared in this scope
putenv( const_cast<char*>( fs.str().c_str() ) );
So the error comes from a boost header and I have no idea how to fix that.
The repo of what I'm trying to build: https://github.com/linges/daestruct
It uses c99 and c++11.
This seems to be a bug in boost. It has been happened to others, too:
https://github.com/BoostGSoC/boost.afio/commit/1b06855b6e20a01a3c4461c6d2d54e16eb3c8e21
The solution (or better: workaround) is to add the following lines before the inclusion of boost::test:
#ifdef __MINGW32__
// Mingw doesn't define putenv() needed by Boost.Test
extern int putenv(char*);
#endif
Related
I'm trying to write some code using the boost libraries on windows 10. To build the application I have chosen mingw64, which I have installed together with MSYS2.
After downloading and installing the boost libraries(1.76), I tried this example code (https://www.boost.org/doc/libs/1_76_0/more/getting_started/windows.html#build-a-simple-program-using-boost), which I built fine using this command:
g++ .\example.cpp -o test.exe -IC:\Users\Benelli\BoostLib\boost_1_76_0\boost_1_76_0
This example works on my system so I assumed that the boost libraries are installed correctly, although I did not build them, but I understood that the boost.test libary can be used as "header only".
I written a simple code following this tutorial:https://www.boost.org/doc/libs/1_76_0/more/getting_started/windows.html#build-a-simple-program-using-boost.
#define BOOST_TEST_MODULE const_string test
#include <boost/test/unit_test.hpp>
This code does not compile and I really do not get why. Is the boost.test library really "header_only"?
The command I used to build it was:
g++ .\boost_test_example.cpp -o boost_test.exe -IC:\Users\Benelli\BoostLib\boost_1_76_0\boost_1_76_0
Which gives this error message:
For the header only:
I think you need to use boost/test/included/unit_test.hpp as per the boost docs at https://www.boost.org/doc/libs/1_69_0/libs/test/doc/html/boost_test/adv_scenarios/single_header_customizations/multiple_translation_units.html
I had a similar winMain error and had to the define for BOOST_TEST_DYN_LINK to the top of the code (when i was linking against the libraries).
#define BOOST_TEST_DYN_LINK
#define BOOST_TEST_MODULE const_string test
#include <boost/test/unit_test.hpp>
When not using the header only for the undefined references link with the boost test library, eg -LC:/msys64/mingw64/lib -lboost_unit_test_framework-mt.
I installed boost following instructions here: https://phylogeny.uconn.edu/tutorial-v2/part-1-ide-project-v2/setting-up-the-boost-c-library-v2/#
works in Visual Studio, but doesn't work when compiling using mingw g++ in windows cmd.
Editor is vim.
source code is like:
#include <boost/algorithm/string.hpp>
...
compiling like this:
> g++ -o test test.cpp
test.cpp:7:10: fatal error: boost/algorithm/string.hpp: No such file or directory
#include <boost/algorithm/string.hpp>
How can I make my mingw g++ available for boost?
You used the config from the page:
import option ;
using msvc ;
option.set keep-going : false ;
libraries = --with-program_options --with-regex --with-filesystem --with-system ;
using msvc should probably tell you something. It uses the MSVC toolchain. Because these are not interoperable (different C++ runtime libraries, for starters, different ABI likely), you can't link to those libraries.
Header Only
If, like the code you showed, you only require headers, then that is no issue, just add the include path to your compiler flags, as the tutorial also told you:
So either typing command line options directly:
g++ -I C:\boost_1_65_0
Or adding to a variable in your build script(s), like Makefile:
CPPFLAGS+=-I C:\boost_1_65_0
Or CMake:
INCLUDE_DIRECTORIES(C:\boost_1_65_0)
With Linking
To use pre-built shared libraries, you need to build different versions for mingw. See e.g. these steps: https://gist.github.com/zrsmithson/0b72e0cb58d0cb946fc48b5c88511da8
I installed from that last week (context) and it worked fine. (I also ended up going no-IDE with Vim, though VsCode was ok as well)
Check that it is using the mingw toolchain (e.g. mgw81) which also means that mgw81 shoud be part of the library filenames. Following just that tutorial already gives you this, but your previously existing configs might interfere if you're not careful.
so, I'm trying to compile Gwen in Windows, for use with a project I have coming up. I downloaded the source from Garry's GitHub, and followed his instructions on building the compilation before importing it to Code::Blocks to compile. I import the .cbp file, start compiling, and after a few minutes I get:
Error: '_asm' was not declared in this scope.
The error comes from some code after a line containing #ifdef _WIN32.
Exact file: gwen.cpp, line 49.
More information:
OS: Windows 7 64bit.
Compiler: Latest gcc from the MinGW, 4.7.2 (MinGW32)
I think it is because MinGW doesn't understand the assembler, it should be asm for that compiler. I think this is cause by using _WIN32 instead of WIN32. The former is the platform and the latter is API.
Try changing it to:
void AssertCheck(bool b, const char* strMsg)
{
if (!b)
{
Msg("Assert: %s\n", strMsg);
#ifdef WIN32
MessageBoxA(NULL, strMsg, "Assert", MB_ICONEXCLAMATION|MB_OK);
_asm { int 3 }
#endif
}
}
EDIT: Alternatively you could try Gwork, which is a tidied up version of GWEN.
I want a header-only BOOST.
Using boost::bind and boost::ptr_set, it seems unnecessary to depend on libboost_date_time and libboost_regex. But I get a linker error for those libraries when I build.
LINK : fatal error LNK1104: cannot open file 'libboost_date_time-vc90-mt-s-1_47.lib'
Geenrally you can #define BOOST_ALL_NO_LIB to disable the auto-linking of the MSVC compiler you are using as documented (see Boost.Config). But of course you still have to compile and link the libraries you do use. Which if you are getting those errors it means that you are likely using the libraries.
#define BOOST_DATE_TIME_NO_LIB in your compiler Makefile to exclude the datetime library. #define BOOST_REGEX_NO_LIB to exclude the regex library, for example.
You can use the bcp utility to copy the specific portions of Boost that you actually use.
I am using Boost.Regex library to write a code for 10 digit mobile no. verification.I have compiled the Boost library using bjam.exe for msvc.
Now I want to run the same code for a BREW handset.For generating the executable (mod file) for the handset, I compile the C++ code using RVDS 3.0.The IDE used is Code Warrior 5.7
Can any body please tell me the way to compile boost library for RVDS 3.0.I am using armcc compiler.
You might want to rebuild the boost libraries with the appropriate compiler set to --toolset parameter of bjam. Here is the bjam reference: Boost Jam