Re: [oce-dev] Re: OCE 0.12 and MinGW

[D. Barbier]

On 2013/5/18 thatcadguy wrote:
> Hello again,
>
> GCC has an option to downgrade certain errors to warnings (-fpermissive). If
> you edit CMakeLists.txt and add this, it will compile just fine with
> MinGW-w64.
>
> Lines 784-785:
> IF(MINGW)
> SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mthreads")
>
> change line 785 to:
> SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mthreads -fpermissive")

Hello,

There is no need to edit CMakeLists.txt, you can either edit flags in
a GUI (see Advanced options) or pass -DCMAKE_CXX_FLAGS=-fpermissive
flag to cmake.

> Perhaps this should be changed (in master) for the time being before the
> goal of eliminating compiler errors is met so that people can compile with
> MinGW-w64.

Yes, good idea. Maybe add only this flag when compiling on win64.

> I haven't run any tests, but I have a simple program to create a simple STEP
> model which tests basic geometry and BOPs. MSVC 2012 32/64, MinGW 64, and
> GCC 32 (Linux) all produce the same shape with minor file differences (digit
> discrepancies starting at 1e-12). I have yet to compile this program with
> MinGW 32 and GCC 64, but I doubt they could be much different. I'll post
> here again if they are.

Ok, thanks.

Denis

[C G]

Hi,

 I am trying to compile the oce-0.12 with mingw32&msys, but there are some errors when compiling libTKOpenGL.dll

" E:\...\ftgl\lib\libftgl.a<libftgl_la-FTTextureGlyph.o>:In function 'ZN18FTTextureGlyphImp1C2EP16FT_GlyphSlotRec_iiiii':

e:\..\ftgl-2.1.3\src/FTGlyph/FTTextureGlyph.cpp:90:undefined reference to 'glPushClientAttrib@4'

e:\..\ftgl-2.1.3\src/FTGlyph/FTTextureGlyph.cpp:96:undefined reference to 'glTextSubIamage2D@36'

e:\..\ftgl-2.1.3\src/FTGlyph/FTTextureGlyph.cpp:90:undefined reference to 'glPopClientAttrib@0'

collect.exe:error:ld returned 1 exit status

make[2]:***[adm/cmake/TKOpenGL/win32/bin/Release/libTKOpenGL.dll] Error 1

make[1]:***[adm/cmake/TKOpenGL/CMakeFiles/TKOpenGL.dir/all] Error 2

could anyone help me , 

thanks

CG

[D. Barbier]

Hello,

No idea, this is not related to oce. Maybe you should try to build
and run ftgl demo applications, something seems to be wrong in your
ftgl build.

Denis

[C G]

hi

thank you ,Denis.As you said ,it was the problem of ftgl. I have rebulit it and  complied all the oce-0.12 except the component of oce-visualisation  successfully. when compiling the oce with the part of oce-visualisation,there are some errors as following:

E:\test\oce-OCE-0.12\src\Draw\Draw_Interpretor.cxx: In function 'FILE* {anonymous}::capture_start(int, int*)':

E:\test\oce-OCE-0.12\src\Draw\Draw_Interpretor.cxx:140:28: error: 'dup' was not declared in this scope

E:\test\oce-OCE-0.12\src\Draw\Draw_Interpretor.cxx:141:24: error: 'dup2' was not declared in this scope

E:\test\oce-OCE-0.12\src\Draw\Draw_Interpretor.cxx: In function 'void {anonymous}::capture_end(FILE*, int, int, Standard_OStream&, Standard_Boolean)':

E:\test\oce-OCE-0.12\src\Draw\Draw_Interpretor.cxx:148:26: error: 'dup2' was not declared in this scope

E:\test\oce-OCE-0.12\src\Draw\Draw_Interpretor.cxx:149:18: error: 'close' was not declared in this scope

make[2]: *** [adm/cmake/TKDraw/CMakeFiles/TKDraw.dir/__/__/__/src/Draw/Draw_Interpretor.cxx.obj] Error 1

make[1]: *** [adm/cmake/TKDraw/CMakeFiles/TKDraw.dir/all] Error 2

make: *** [all] Error 2

CG