[Gambas-devel] linkage errors with updated gcc-4.1 versions

[José L. Redrejo Rodríguez]

Hi, Benoît, Compiling gambas 1.9.33 with current gcc-4.1 versions causes
the compilation fail due to some restrictions in the scope of the
variables declaration.
The fails are explained here:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27227#c8

The errors I get are:
gstring.h: At global scope:
gstring.h:32: error: previous declaration of 'GB_INTERFACE GB' with 'C
++' linkage
main.cpp:48: error: conflicts with new declaration with 'C' linkage
gstring.h:33: error: previous declaration of 'QT_INTERFACE QT' with 'C
++' linkage
main.cpp:49: error: conflicts with new declaration with 'C' linkage
make[6]: *** [main.lo] Error 1


According to the above link, it seems that the new versions of gcc are
applying this restriction:
The standard says in 7.5/5: "If two declarations of the same function or
object
specify different linkage-specifications [...] the program is ill-formed
if the
declarations appear in the same translation unit [...]"

Maybe this problem will appear in more parts of the code..