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← Older revision Revision as of 01:17, 26 April 2025 (One intermediate revision by the same user not shown)Line 49: Line 49:     '''Solution''': Patch the source to #include the right standard header file. It's probably an obvious one like #include <stdlib.h> or #include <string.h>. '''Solution''': Patch the source to #include the right standard header file. It's probably an obvious one like #include <stdlib.h> or #include <string.h>.  +  +Added for mga10.  +  +== incompatibleptr ==  +  +'''Problem''': A function is being passed in a value that doesn't match the type in the function prototype.  +  +'''Solution''': If it is a function pointer being called that does not have a full prototype, [https://gcc.gnu.org/gcc-15/porting_to.html#c23 gcc >= 15] assumes arguments are int, whereas previous versions did not check the type of arguments in this case. If lacking a full prototype is the problem and there is no function prototype, add one in an appropriate .h file (or make the partial prototype complete). If compiling a library, make sure that a new prototype doesn't affect backwards compatibility with older applications using the library. If it's not possible to add a prototype, you can add the ''-std=gnu17'' compiler option (e.g. by appending to ''CFLAGS'' before the build step) to revert to the old behaviour (but don't do this to fix a library because it means that all applications using the library will also need to add the flag). If there ''is'' a prototype but it does not match the number of arguments passed in, then it is a compatibility break, likely with some dependent library, and the application will need to be patched to use the correct arguments.     Added for mga10. Added for mga10. Line 139: Line 147:     '''More info''': https://gcc.gnu.org/gcc-14/porting_to.html '''More info''': https://gcc.gnu.org/gcc-14/porting_to.html  +  +Added for mga10.  +  +== toomanyargs ==  +  +'''Problem''': A function is being called that takes more arguments than are being given.  +  +'''Solution''': If the function does not have a prototype, [https://gcc.gnu.org/gcc-15/porting_to.html#c23 gcc >= 15] assumes it takes 0 arguments, whereas previous versions did not check the number of arguments in this case. If lacking a prototype is the problem and there is no function prototype, add one in an appropriate .h file. If compiling a library, make sure that a new prototype doesn't affect backwards compatibility with older applications using the library. If it's not possible to add a prototype, you can add the ''-std=gnu17'' compiler option (e.g. by appending to ''CFLAGS'' before the build step) to revert to the old behaviour (but don't do this to fix a library because it means that all applications using the library will also need to add the flag). If there ''is'' a prototype but it does not match the number of arguments passed in, then it is a compatibility break, likely with some dependent library, and the application will need to be patched to use the correct arguments.     Added for mga10. Added for mga10. Danf