It fails in a similar fashion, which is why I don’t think my first attempt actually used gcc 4.9. What are the commands to set a default compiler?
> On Apr 2, 2016, at 4:45 AM, Joshua Root <j...@macports.org> wrote: > > Sounds like they could use some help with their code. If you want to make > your own version of a function like abs that behaves differently to the > stdlib one, defining a macro with the same name is not the way to go about > it. It's likely to misbehave regardless of which compiler you use, just > because of the way C preprocessing works. > > Have you tried just compiling with clang and seeing what happens? > > - Josh > > On 2016-4-2 18:04 , Mark Brethen wrote: >> From their installation guide: >> >> For the compilation of cgx, therefore, the unmodified GCC 4.9 is >> required because the modified (by Apple) GCC for several reasons is not >> suitable for the compilation of cgx … The modified GCC includes the >> individual compilers: gcc (GNU c compiler), g++ and clang. Because the >> modified GCC has a problem with function overloading it is not suitable >> for the 2compilation of cgx. >> >> 2In particular, the compilation of function: #define abs(x) ((x) >= 0 ? >> (x) : -(x)) in the cgx-routine: “extUtil.h“ causes a compiler error. A >> bug fix for the compiler was not available at the time the installation >> of cgx was tested. >> >> >> I have looked at that link but it doesn’t explain how, for example, to >> set a default compiler. The compilers group gives more instruction, but >> it’s not completely clear to me. I guess something like >> >> compilers.choose cc cxx cpp >> configure.cc <http://configure.cc> macports-gcc-4.9 >> >> >>> On Apr 1, 2016, at 11:59 PM, Ryan Schmidt <ryandes...@macports.org >>> <mailto:ryandes...@macports.org>> wrote: >>> >>>> On Apr 1, 2016, at 23:03, Mark Brethen <mark.bret...@gmail.com >>>> <mailto:mark.bret...@gmail.com>> wrote: >>>> >>>> I’ve run into a snag building calculix. glut and libSNL are libraries >>>> that calculix uses. I set >>>> >>>> "compiler.whitelist macports-gcc-4.9” >>>> >>>> per the developers instructions. >>> >>> Why? We usually do not want to use FSF GCC. >>> >>>> However there isn’t a configure so I’m not sure what else needs to be >>>> passed. >>>> >>>> subport ${name}-cgx { >>>> revision 0 >>>> master_sites http://www.dhondt.de/ >>>> distname cgx_${version}.all >>>> >>>> checksums rmd160 >>>> 02302101f16c2b4cdd570e81986cc4d36c2110d8 \ >>>> sha256 >>>> 64810dab1c22152c7946282fac5763cc36b9e31e309f962c23b8bf8238537c7e >>>> >>>> depends_run-append port:openbrowser >>>> >>>> worksrcdir CalculiX >>>> build.dir ${worksrcpath}/cgx_${version}/src >>>> build.target >>>> >>>> compiler.whitelist macports-gcc-4.9 >>>> >>>> patchfiles patch-cgx-build.diff \ >>>> patch-libSNL-build.diff >>>> patch.dir ${workpath} >>>> >>>> post-patch { >>>> reinplace "s|@@PREFIX@@|${prefix}|g" \ >>>> ${worksrcpath}/cgx_${version}/src/cgx.h >>>> } >>>> >>>> use_configure no >>>> >>>> livecheck.regex {ccx_${version}.all} >>>> } >>> >>> When you set "use_configure no", you must add code to use the right >>> compiler and -arch flags and offer a universal variant. See: >>> >>> https://trac.macports.org/wiki/UsingTheRightCompiler >> > _______________________________________________ macports-dev mailing list macports-dev@lists.macosforge.org https://lists.macosforge.org/mailman/listinfo/macports-dev