On 22 Jun 2010, at 19:17, Jim Wilson wrote:
> OK. I got it. after "mingw-configure" (without "--enable-localjpeg) > and another bout of hand editing, after "rm src/Fl_JPEG_Image.o": > > $ mingw32-make > === making src === > Compiling Fl_JPEG_Image.cxx... > Fl_JPEG_Image.cxx: In constructor 'Fl_JPEG_Image::Fl_JPEG_Image > (const char*)': > Fl_JPEG_Image.cxx:158: error: 'boolean' was not declared in this scope > Fl_JPEG_Image.cxx:158: error: expected ';' before numeric constant > make[1]: *** [Fl_JPEG_Image.o] Error 1 > make: *** [all] Error 1 > > Following Ian's advice to consider jmorecfg.h, I looked in mingw's > version > and found a possible explanation: > > """ > /* > * On a few systems, type boolean and/or its values FALSE, TRUE may > appear > * in standard header files. Or you may have conflicts with > application- > * specific header files that you want to include together with > these files. > * Defining HAVE_BOOLEAN before including jpeglib.h should make it > work. > */ > typedef int jpeg_boolean; > : > """ > > I see that "typedef boolean ..." or something similar is nowhere to > be found. Yup - and the line you posted, where "jpeg_boolean" is declared, is exactly the place that "boolean" would be getting declared in an "unmolested" jpeg lib... OK... Just so I have this clear... So we are saying that the version of jmorecfg.h that is bundled with the mingw cross-compiler on your linux box (and presumably all the other jpeg lib files that use "boolean", which is most of them...) have been bodged to rename "boolean" as "jpeg_boolean", presumably in an attempt to dodge some other name collision elsewhere. And, the fltk code in Fl_JPEG_Image.cxx expects to be able to use the name "boolean" for this typedef, but since it is renamed in your mingw-cross environment, the fltk build fails. But, if you use the fltk built-in jpeg lib (other bodges applied by the fltk team notwithstanding...) then it all builds OK. Great. I don't know where we go from here. I wish we could learn to leave the "stock" libraries alone though.... -- Ian _______________________________________________ fltk mailing list [email protected] http://lists.easysw.com/mailman/listinfo/fltk
