* Problem porting gcc 12
@ 2023-04-10 11:33 Kalamatee
2023-04-10 11:33 ` Kalamatee
2023-04-10 12:14 ` Jonathan Wakely
0 siblings, 2 replies; 8+ messages in thread
From: Kalamatee @ 2023-04-10 11:33 UTC (permalink / raw)
To: gcc-help
[-- Attachment #1: Type: text/plain, Size: 3733 bytes --]
Hi,
When im trying to build gcc12, I get the following error -:
/bin/bash ../../libtool --tag CXX --tag disable-shared --mode=compile
/home/test/gcc12/./gcc/xgcc -shared-libgcc -B/home/test/gcc12/./gcc
-nostdinc++ -L/home/test/gcc12/x86_64-aros/libstdc++-v3/src
-L/home/test/gcc12/x86_64-aros/libstdc++-v3/src/.libs
-L/home/test/gcc12/x86_64-aros/libstdc++-v3/libsupc++/.libs
-B/home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/bin/
-B/home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/lib/
-isystem
/home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/include
-isystem
/home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/sys-include
-I/home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/../libgcc
-I/home/test/gcc12/x86_64-aros/libstdc++-v3/include/x86_64-aros
-I/home/test/gcc12/x86_64-aros/libstdc++-v3/include
-I/home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/libsupc++ -std=gnu++17
-nostdinc++ -fno-implicit-templates -Wall -Wextra -Wwrite-strings
-Wcast-qual -Wabi=2 -fdiagnostics-show-location=once -ffunction-sections
-fdata-sections -frandom-seed=floating_from_chars.lo -fimplicit-templates
-g -O2 -c -o floating_from_chars.lo
/home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/src/c++17/floating_from_chars.cc
libtool: compile: /home/test/gcc12/./gcc/xgcc -shared-libgcc
-B/home/test/gcc12/./gcc -nostdinc++
-L/home/test/gcc12/x86_64-aros/libstdc++-v3/src
-L/home/test/gcc12/x86_64-aros/libstdc++-v3/src/.libs
-L/home/test/gcc12/x86_64-aros/libstdc++-v3/libsupc++/.libs
-B/home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/bin/
-B/home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/lib/
-isystem
/home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/include
-isystem
/home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/sys-include
-I/home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/../libgcc
-I/home/test/gcc12/x86_64-aros/libstdc++-v3/include/x86_64-aros
-I/home/test/gcc12/x86_64-aros/libstdc++-v3/include
-I/home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/libsupc++ -std=gnu++17
-nostdinc++ -fno-implicit-templates -Wall -Wextra -Wwrite-strings
-Wcast-qual -Wabi=2 -fdiagnostics-show-location=once -ffunction-sections
-fdata-sections -frandom-seed=floating_from_chars.lo -fimplicit-templates
-g -O2 -c
/home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/src/c++17/floating_from_chars.cc
-o floating_from_chars.o
In file included from
/home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/src/c++17/floating_from_chars.cc:77:
/home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/src/c++17/fast_float/fast_float.h:
In function 'void
{anonymous}::fast_float::round_nearest_tie_even(adjusted_mantissa&,
int32_t, callback)':
/home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/src/c++17/fast_float/fast_float.h:2500:12:
error: 'UINT64_MAX' was not declared in this scope
2500 | mask = UINT64_MAX;
| ^~~~~~~~~~
/home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/src/c++17/fast_float/fast_float.h:1:1:
note: 'UINT64_MAX' is defined in header '<cstdint>'; did you forget to
'#include <cstdint>'?
+++ |+#include <cstdint>
1 | // fast_float by Daniel Lemire
make[7]: *** [Makefile:585: floating_from_chars.lo] Error 1
I can see from the preprocessor output, the necessary header is included -
but is protected with
#if !defined(__cplusplus) || defined(__STDC_LIMIT_MACROS)
#endif
And since the compiler doesn't define __STDC_LIMIT_MACROS on the command
line, or in the source file - it is resolved.
I'm not sure though, where is the correct place to fix this?
^ permalink raw reply [flat|nested] 8+ messages in thread* Re: Problem porting gcc 12 2023-04-10 11:33 Problem porting gcc 12 Kalamatee @ 2023-04-10 11:33 ` Kalamatee 2023-04-10 12:14 ` Jonathan Wakely 1 sibling, 0 replies; 8+ messages in thread From: Kalamatee @ 2023-04-10 11:33 UTC (permalink / raw) To: gcc-help [-- Attachment #1: Type: text/plain, Size: 206 bytes --] On Mon, 10 Apr 2023 at 12:33, Kalamatee <kalamatee@gmail.com> wrote: > > And since the compiler doesn't define __STDC_LIMIT_MACROS on the command > line, or in the source file - it is resolved. > * isn't ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Problem porting gcc 12 2023-04-10 11:33 Problem porting gcc 12 Kalamatee 2023-04-10 11:33 ` Kalamatee @ 2023-04-10 12:14 ` Jonathan Wakely 2023-04-10 12:34 ` Kalamatee 1 sibling, 1 reply; 8+ messages in thread From: Jonathan Wakely @ 2023-04-10 12:14 UTC (permalink / raw) To: Kalamatee; +Cc: gcc-help [-- Attachment #1: Type: text/plain, Size: 4708 bytes --] On Mon, 10 Apr 2023, 12:34 Kalamatee via Gcc-help, <gcc-help@gcc.gnu.org> wrote: > Hi, > > When im trying to build gcc12, I get the following error -: > > /bin/bash ../../libtool --tag CXX --tag disable-shared --mode=compile > /home/test/gcc12/./gcc/xgcc -shared-libgcc -B/home/test/gcc12/./gcc > -nostdinc++ -L/home/test/gcc12/x86_64-aros/libstdc++-v3/src > -L/home/test/gcc12/x86_64-aros/libstdc++-v3/src/.libs > -L/home/test/gcc12/x86_64-aros/libstdc++-v3/libsupc++/.libs > > -B/home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/bin/ > > -B/home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/lib/ > -isystem > > /home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/include > -isystem > > /home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/sys-include > -I/home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/../libgcc > -I/home/test/gcc12/x86_64-aros/libstdc++-v3/include/x86_64-aros > -I/home/test/gcc12/x86_64-aros/libstdc++-v3/include > -I/home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/libsupc++ -std=gnu++17 > -nostdinc++ -fno-implicit-templates -Wall -Wextra -Wwrite-strings > -Wcast-qual -Wabi=2 -fdiagnostics-show-location=once -ffunction-sections > -fdata-sections -frandom-seed=floating_from_chars.lo -fimplicit-templates > -g -O2 -c -o floating_from_chars.lo > > /home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/src/c++17/floating_from_chars.cc > libtool: compile: /home/test/gcc12/./gcc/xgcc -shared-libgcc > -B/home/test/gcc12/./gcc -nostdinc++ > -L/home/test/gcc12/x86_64-aros/libstdc++-v3/src > -L/home/test/gcc12/x86_64-aros/libstdc++-v3/src/.libs > -L/home/test/gcc12/x86_64-aros/libstdc++-v3/libsupc++/.libs > > -B/home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/bin/ > > -B/home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/lib/ > -isystem > > /home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/include > -isystem > > /home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/sys-include > -I/home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/../libgcc > -I/home/test/gcc12/x86_64-aros/libstdc++-v3/include/x86_64-aros > -I/home/test/gcc12/x86_64-aros/libstdc++-v3/include > -I/home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/libsupc++ -std=gnu++17 > -nostdinc++ -fno-implicit-templates -Wall -Wextra -Wwrite-strings > -Wcast-qual -Wabi=2 -fdiagnostics-show-location=once -ffunction-sections > -fdata-sections -frandom-seed=floating_from_chars.lo -fimplicit-templates > -g -O2 -c > > /home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/src/c++17/floating_from_chars.cc > -o floating_from_chars.o > In file included from > > /home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/src/c++17/floating_from_chars.cc:77: > > /home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/src/c++17/fast_float/fast_float.h: > In function 'void > {anonymous}::fast_float::round_nearest_tie_even(adjusted_mantissa&, > int32_t, callback)': > > /home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/src/c++17/fast_float/fast_float.h:2500:12: > error: 'UINT64_MAX' was not declared in this scope > 2500 | mask = UINT64_MAX; > | ^~~~~~~~~~ > > /home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/src/c++17/fast_float/fast_float.h:1:1: > note: 'UINT64_MAX' is defined in header '<cstdint>'; did you forget to > '#include <cstdint>'? > +++ |+#include <cstdint> > 1 | // fast_float by Daniel Lemire > make[7]: *** [Makefile:585: floating_from_chars.lo] Error 1 > > I can see from the preprocessor output, the necessary header is included - > but is protected with > #if !defined(__cplusplus) || defined(__STDC_LIMIT_MACROS) > #endif > > And since the compiler doesn't define __STDC_LIMIT_MACROS on the command > line, or in the source file - it is resolved. > > I'm not sure though, where is the correct place to fix this? > In the C library. The C++ standard is very clear that __STDC_LIMIT_MACROS has no meaning whatsoever in C++. The C library's <stdint.h> must define those macros unconditionally for C++. The C99 standard said the macros are required for C++, so some C libraries follow that rule, but they should follow the C++ standard for C++ code, since C99 only defines C and had no business trying to specify how C++ works. If you cannot fix the libc headers then you can #define __STDC_LIMIT_MACROS in your target's os_defines.h header in libstdc++ (I think that's the right workaround, but I'm not at my desk to check it ... Search for that macro in the libstdc++ source to see how other targets handle non-conforming libc headers. > ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Problem porting gcc 12 2023-04-10 12:14 ` Jonathan Wakely @ 2023-04-10 12:34 ` Kalamatee 2023-04-10 14:15 ` AW: " Stefan Franke 2023-04-11 9:49 ` Jonathan Wakely 0 siblings, 2 replies; 8+ messages in thread From: Kalamatee @ 2023-04-10 12:34 UTC (permalink / raw) To: Jonathan Wakely; +Cc: gcc-help [-- Attachment #1: Type: text/plain, Size: 4940 bytes --] Thanks, I'll check that out. On Mon, 10 Apr 2023, 13:15 Jonathan Wakely, <jwakely.gcc@gmail.com> wrote: > > > On Mon, 10 Apr 2023, 12:34 Kalamatee via Gcc-help, <gcc-help@gcc.gnu.org> > wrote: > >> Hi, >> >> When im trying to build gcc12, I get the following error -: >> >> /bin/bash ../../libtool --tag CXX --tag disable-shared --mode=compile >> /home/test/gcc12/./gcc/xgcc -shared-libgcc -B/home/test/gcc12/./gcc >> -nostdinc++ -L/home/test/gcc12/x86_64-aros/libstdc++-v3/src >> -L/home/test/gcc12/x86_64-aros/libstdc++-v3/src/.libs >> -L/home/test/gcc12/x86_64-aros/libstdc++-v3/libsupc++/.libs >> >> -B/home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/bin/ >> >> -B/home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/lib/ >> -isystem >> >> /home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/include >> -isystem >> >> /home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/sys-include >> -I/home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/../libgcc >> -I/home/test/gcc12/x86_64-aros/libstdc++-v3/include/x86_64-aros >> -I/home/test/gcc12/x86_64-aros/libstdc++-v3/include >> -I/home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/libsupc++ -std=gnu++17 >> -nostdinc++ -fno-implicit-templates -Wall -Wextra -Wwrite-strings >> -Wcast-qual -Wabi=2 -fdiagnostics-show-location=once >> -ffunction-sections >> -fdata-sections -frandom-seed=floating_from_chars.lo >> -fimplicit-templates >> -g -O2 -c -o floating_from_chars.lo >> >> /home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/src/c++17/floating_from_chars.cc >> libtool: compile: /home/test/gcc12/./gcc/xgcc -shared-libgcc >> -B/home/test/gcc12/./gcc -nostdinc++ >> -L/home/test/gcc12/x86_64-aros/libstdc++-v3/src >> -L/home/test/gcc12/x86_64-aros/libstdc++-v3/src/.libs >> -L/home/test/gcc12/x86_64-aros/libstdc++-v3/libsupc++/.libs >> >> -B/home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/bin/ >> >> -B/home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/lib/ >> -isystem >> >> /home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/include >> -isystem >> >> /home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/sys-include >> -I/home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/../libgcc >> -I/home/test/gcc12/x86_64-aros/libstdc++-v3/include/x86_64-aros >> -I/home/test/gcc12/x86_64-aros/libstdc++-v3/include >> -I/home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/libsupc++ -std=gnu++17 >> -nostdinc++ -fno-implicit-templates -Wall -Wextra -Wwrite-strings >> -Wcast-qual -Wabi=2 -fdiagnostics-show-location=once -ffunction-sections >> -fdata-sections -frandom-seed=floating_from_chars.lo -fimplicit-templates >> -g -O2 -c >> >> /home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/src/c++17/floating_from_chars.cc >> -o floating_from_chars.o >> In file included from >> >> /home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/src/c++17/floating_from_chars.cc:77: >> >> /home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/src/c++17/fast_float/fast_float.h: >> In function 'void >> {anonymous}::fast_float::round_nearest_tie_even(adjusted_mantissa&, >> int32_t, callback)': >> >> /home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/src/c++17/fast_float/fast_float.h:2500:12: >> error: 'UINT64_MAX' was not declared in this scope >> 2500 | mask = UINT64_MAX; >> | ^~~~~~~~~~ >> >> /home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/src/c++17/fast_float/fast_float.h:1:1: >> note: 'UINT64_MAX' is defined in header '<cstdint>'; did you forget to >> '#include <cstdint>'? >> +++ |+#include <cstdint> >> 1 | // fast_float by Daniel Lemire >> make[7]: *** [Makefile:585: floating_from_chars.lo] Error 1 >> >> I can see from the preprocessor output, the necessary header is included - >> but is protected with >> #if !defined(__cplusplus) || defined(__STDC_LIMIT_MACROS) >> #endif >> >> And since the compiler doesn't define __STDC_LIMIT_MACROS on the command >> line, or in the source file - it is resolved. >> >> I'm not sure though, where is the correct place to fix this? >> > > > In the C library. The C++ standard is very clear that __STDC_LIMIT_MACROS > has no meaning whatsoever in C++. The C library's <stdint.h> must define > those macros unconditionally for C++. The C99 standard said the macros are > required for C++, so some C libraries follow that rule, but they should > follow the C++ standard for C++ code, since C99 only defines C and had no > business trying to specify how C++ works. > > If you cannot fix the libc headers then you can #define > __STDC_LIMIT_MACROS in your target's os_defines.h header in libstdc++ (I > think that's the right workaround, but I'm not at my desk to check it ... > Search for that macro in the libstdc++ source to see how other targets > handle non-conforming libc headers. > >> ^ permalink raw reply [flat|nested] 8+ messages in thread
* AW: Problem porting gcc 12 2023-04-10 12:34 ` Kalamatee @ 2023-04-10 14:15 ` Stefan Franke 2023-04-11 9:49 ` Jonathan Wakely 1 sibling, 0 replies; 8+ messages in thread From: Stefan Franke @ 2023-04-10 14:15 UTC (permalink / raw) To: 'Kalamatee', 'Jonathan Wakely'; +Cc: 'gcc-help' > -----Ursprüngliche Nachricht----- > Von: Gcc-help <gcc-help-bounces+bebbo=bejy.net@gcc.gnu.org> Im > Auftrag von Kalamatee via Gcc-help > Gesendet: Montag, 10. April 2023 14:34 > An: Jonathan Wakely <jwakely.gcc@gmail.com> > Cc: gcc-help <gcc-help@gcc.gnu.org> > Betreff: Re: Problem porting gcc 12 > > Thanks, I'll check that out. > > On Mon, 10 Apr 2023, 13:15 Jonathan Wakely, <jwakely.gcc@gmail.com> > wrote: > > > > > > > On Mon, 10 Apr 2023, 12:34 Kalamatee via Gcc-help, > > <gcc-help@gcc.gnu.org> > > wrote: > > > >> Hi, > >> > >> When im trying to build gcc12, I get the following error -: > >> > >> /bin/bash ../../libtool --tag CXX --tag disable-shared --mode=compile > >> /home/test/gcc12/./gcc/xgcc -shared-libgcc -B/home/test/gcc12/./gcc > >> -nostdinc++ -L/home/test/gcc12/x86_64-aros/libstdc++-v3/src > >> -L/home/test/gcc12/x86_64-aros/libstdc++-v3/src/.libs > >> -L/home/test/gcc12/x86_64-aros/libstdc++-v3/libsupc++/.libs > >> > >> -B/home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/cro > >> sstools/x86_64-aros/bin/ > >> > >> -B/home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/cro > >> sstools/x86_64-aros/lib/ > >> -isystem > >> > >> /home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/cross > >> tools/x86_64-aros/include > >> -isystem > >> > >> /home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux- > x86_64/tools/crosstools/x86_64-aros/sys-include > >> -I/home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/../libgcc > >> -I/home/test/gcc12/x86_64-aros/libstdc++-v3/include/x86_64-aros > >> -I/home/test/gcc12/x86_64-aros/libstdc++-v3/include > >> -I/home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/libsupc++ -std=gnu++17 > >> -nostdinc++ -fno-implicit-templates -Wall -Wextra -Wwrite-strings > >> -Wcast-qual -Wabi=2 -fdiagnostics-show-location=once > >> -ffunction-sections -fdata-sections > >> -frandom-seed=floating_from_chars.lo > >> -fimplicit-templates > >> -g -O2 -c -o floating_from_chars.lo > >> > >> /home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/src/c++17/floating_from_ > >> chars.cc > >> libtool: compile: /home/test/gcc12/./gcc/xgcc -shared-libgcc > >> -B/home/test/gcc12/./gcc -nostdinc++ > >> -L/home/test/gcc12/x86_64-aros/libstdc++-v3/src > >> -L/home/test/gcc12/x86_64-aros/libstdc++-v3/src/.libs > >> -L/home/test/gcc12/x86_64-aros/libstdc++-v3/libsupc++/.libs > >> > >> -B/home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/cro > >> sstools/x86_64-aros/bin/ > >> > >> -B/home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/cro > >> sstools/x86_64-aros/lib/ > >> -isystem > >> > >> /home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/cross > >> tools/x86_64-aros/include > >> -isystem > >> > >> /home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/cross > >> tools/x86_64-aros/sys-include > >> -I/home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/../libgcc > >> -I/home/test/gcc12/x86_64-aros/libstdc++-v3/include/x86_64-aros > >> -I/home/test/gcc12/x86_64-aros/libstdc++-v3/include > >> -I/home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/libsupc++ -std=gnu++17 > >> -nostdinc++ -fno-implicit-templates -Wall -Wextra -Wwrite-strings > >> -Wcast-qual -Wabi=2 -fdiagnostics-show-location=once > >> -ffunction-sections -fdata-sections > >> -frandom-seed=floating_from_chars.lo -fimplicit-templates -g -O2 -c > >> > >> /home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/src/c++17/floating_from_ > >> chars.cc > >> -o floating_from_chars.o > >> In file included from > >> > >> /home/test/gcc12/src/gcc-12.2.0/libstdc++- > v3/src/c++17/floating_from_chars.cc:77: > >> > >> /home/test/gcc12/src/gcc-12.2.0/libstdc++- > v3/src/c++17/fast_float/fast_float.h: > >> In function 'void > >> {anonymous}::fast_float::round_nearest_tie_even(adjusted_mantissa&, > >> int32_t, callback)': > >> > >> /home/test/gcc12/src/gcc-12.2.0/libstdc++- > v3/src/c++17/fast_float/fast_float.h:2500:12: > >> error: 'UINT64_MAX' was not declared in this scope > >> 2500 | mask = UINT64_MAX; > >> | ^~~~~~~~~~ > >> > >> /home/test/gcc12/src/gcc-12.2.0/libstdc++- > v3/src/c++17/fast_float/fast_float.h:1:1: > >> note: 'UINT64_MAX' is defined in header '<cstdint>'; did you forget > >> to '#include <cstdint>'? > >> +++ |+#include <cstdint> > >> 1 | // fast_float by Daniel Lemire > >> make[7]: *** [Makefile:585: floating_from_chars.lo] Error 1 > >> > >> I can see from the preprocessor output, the necessary header is > >> included - but is protected with #if !defined(__cplusplus) || > >> defined(__STDC_LIMIT_MACROS) #endif > >> > >> And since the compiler doesn't define __STDC_LIMIT_MACROS on the > >> command line, or in the source file - it is resolved. > >> > >> I'm not sure though, where is the correct place to fix this? > >> > > > > > > In the C library. The C++ standard is very clear that > > __STDC_LIMIT_MACROS has no meaning whatsoever in C++. The C library's > > <stdint.h> must define those macros unconditionally for C++. The C99 > > standard said the macros are required for C++, so some C libraries > > follow that rule, but they should follow the C++ standard for C++ > > code, since C99 only defines C and had no business trying to specify how > C++ works. > > > > If you cannot fix the libc headers then you can #define > > __STDC_LIMIT_MACROS in your target's os_defines.h header in libstdc++ > > (I think that's the right workaround, but I'm not at my desk to check it ... > > Search for that macro in the libstdc++ source to see how other targets > > handle non-conforming libc headers. > > > >> This header file is what you need: https://raw.githubusercontent.com/bebbo/amiga-gcc/master/sys-include/stdint.h ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Problem porting gcc 12 2023-04-10 12:34 ` Kalamatee 2023-04-10 14:15 ` AW: " Stefan Franke @ 2023-04-11 9:49 ` Jonathan Wakely 2023-04-12 20:44 ` Jonathan Wakely 1 sibling, 1 reply; 8+ messages in thread From: Jonathan Wakely @ 2023-04-11 9:49 UTC (permalink / raw) To: Kalamatee; +Cc: gcc-help On Mon, 10 Apr 2023 at 13:34, Kalamatee <kalamatee@gmail.com> wrote: > > Thanks, I'll check that out. Actually, it looks like the problem might be much simpler: fast_float.h fails to include <stdint.h> Libstdc++ provides its own <stdint.h> header which should solve the __STDC_LIMITS_MACROS issue with non-conforming C libraries. I'll look into it ... > > On Mon, 10 Apr 2023, 13:15 Jonathan Wakely, <jwakely.gcc@gmail.com> wrote: >> >> >> >> On Mon, 10 Apr 2023, 12:34 Kalamatee via Gcc-help, <gcc-help@gcc.gnu.org> wrote: >>> >>> Hi, >>> >>> When im trying to build gcc12, I get the following error -: >>> >>> /bin/bash ../../libtool --tag CXX --tag disable-shared --mode=compile >>> /home/test/gcc12/./gcc/xgcc -shared-libgcc -B/home/test/gcc12/./gcc >>> -nostdinc++ -L/home/test/gcc12/x86_64-aros/libstdc++-v3/src >>> -L/home/test/gcc12/x86_64-aros/libstdc++-v3/src/.libs >>> -L/home/test/gcc12/x86_64-aros/libstdc++-v3/libsupc++/.libs >>> -B/home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/bin/ >>> -B/home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/lib/ >>> -isystem >>> /home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/include >>> -isystem >>> /home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/sys-include >>> -I/home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/../libgcc >>> -I/home/test/gcc12/x86_64-aros/libstdc++-v3/include/x86_64-aros >>> -I/home/test/gcc12/x86_64-aros/libstdc++-v3/include >>> -I/home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/libsupc++ -std=gnu++17 >>> -nostdinc++ -fno-implicit-templates -Wall -Wextra -Wwrite-strings >>> -Wcast-qual -Wabi=2 -fdiagnostics-show-location=once -ffunction-sections >>> -fdata-sections -frandom-seed=floating_from_chars.lo -fimplicit-templates >>> -g -O2 -c -o floating_from_chars.lo >>> /home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/src/c++17/floating_from_chars.cc >>> libtool: compile: /home/test/gcc12/./gcc/xgcc -shared-libgcc >>> -B/home/test/gcc12/./gcc -nostdinc++ >>> -L/home/test/gcc12/x86_64-aros/libstdc++-v3/src >>> -L/home/test/gcc12/x86_64-aros/libstdc++-v3/src/.libs >>> -L/home/test/gcc12/x86_64-aros/libstdc++-v3/libsupc++/.libs >>> -B/home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/bin/ >>> -B/home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/lib/ >>> -isystem >>> /home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/include >>> -isystem >>> /home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/sys-include >>> -I/home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/../libgcc >>> -I/home/test/gcc12/x86_64-aros/libstdc++-v3/include/x86_64-aros >>> -I/home/test/gcc12/x86_64-aros/libstdc++-v3/include >>> -I/home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/libsupc++ -std=gnu++17 >>> -nostdinc++ -fno-implicit-templates -Wall -Wextra -Wwrite-strings >>> -Wcast-qual -Wabi=2 -fdiagnostics-show-location=once -ffunction-sections >>> -fdata-sections -frandom-seed=floating_from_chars.lo -fimplicit-templates >>> -g -O2 -c >>> /home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/src/c++17/floating_from_chars.cc >>> -o floating_from_chars.o >>> In file included from >>> /home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/src/c++17/floating_from_chars.cc:77: >>> /home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/src/c++17/fast_float/fast_float.h: >>> In function 'void >>> {anonymous}::fast_float::round_nearest_tie_even(adjusted_mantissa&, >>> int32_t, callback)': >>> /home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/src/c++17/fast_float/fast_float.h:2500:12: >>> error: 'UINT64_MAX' was not declared in this scope >>> 2500 | mask = UINT64_MAX; >>> | ^~~~~~~~~~ >>> /home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/src/c++17/fast_float/fast_float.h:1:1: >>> note: 'UINT64_MAX' is defined in header '<cstdint>'; did you forget to >>> '#include <cstdint>'? >>> +++ |+#include <cstdint> >>> 1 | // fast_float by Daniel Lemire >>> make[7]: *** [Makefile:585: floating_from_chars.lo] Error 1 >>> >>> I can see from the preprocessor output, the necessary header is included - >>> but is protected with >>> #if !defined(__cplusplus) || defined(__STDC_LIMIT_MACROS) >>> #endif >>> >>> And since the compiler doesn't define __STDC_LIMIT_MACROS on the command >>> line, or in the source file - it is resolved. >>> >>> I'm not sure though, where is the correct place to fix this? >> >> >> >> In the C library. The C++ standard is very clear that __STDC_LIMIT_MACROS has no meaning whatsoever in C++. The C library's <stdint.h> must define those macros unconditionally for C++. The C99 standard said the macros are required for C++, so some C libraries follow that rule, but they should follow the C++ standard for C++ code, since C99 only defines C and had no business trying to specify how C++ works. >> >> If you cannot fix the libc headers then you can #define __STDC_LIMIT_MACROS in your target's os_defines.h header in libstdc++ (I think that's the right workaround, but I'm not at my desk to check it ... Search for that macro in the libstdc++ source to see how other targets handle non-conforming libc headers. ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Problem porting gcc 12 2023-04-11 9:49 ` Jonathan Wakely @ 2023-04-12 20:44 ` Jonathan Wakely 2023-04-12 21:23 ` Kalamatee 0 siblings, 1 reply; 8+ messages in thread From: Jonathan Wakely @ 2023-04-12 20:44 UTC (permalink / raw) To: Kalamatee; +Cc: gcc-help On Tue, 11 Apr 2023 at 10:49, Jonathan Wakely <jwakely.gcc@gmail.com> wrote: > > On Mon, 10 Apr 2023 at 13:34, Kalamatee <kalamatee@gmail.com> wrote: > > > > Thanks, I'll check that out. > > Actually, it looks like the problem might be much simpler: > fast_float.h fails to include <stdint.h> > > Libstdc++ provides its own <stdint.h> header which should solve the > __STDC_LIMITS_MACROS issue with non-conforming C libraries. > > I'll look into it ... Now fixed for gcc-12 and trunk: https://gcc.gnu.org/pipermail/gcc-patches/2023-April/615601.html > > > > On Mon, 10 Apr 2023, 13:15 Jonathan Wakely, <jwakely.gcc@gmail.com> wrote: > >> > >> > >> > >> On Mon, 10 Apr 2023, 12:34 Kalamatee via Gcc-help, <gcc-help@gcc.gnu.org> wrote: > >>> > >>> Hi, > >>> > >>> When im trying to build gcc12, I get the following error -: > >>> > >>> /bin/bash ../../libtool --tag CXX --tag disable-shared --mode=compile > >>> /home/test/gcc12/./gcc/xgcc -shared-libgcc -B/home/test/gcc12/./gcc > >>> -nostdinc++ -L/home/test/gcc12/x86_64-aros/libstdc++-v3/src > >>> -L/home/test/gcc12/x86_64-aros/libstdc++-v3/src/.libs > >>> -L/home/test/gcc12/x86_64-aros/libstdc++-v3/libsupc++/.libs > >>> -B/home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/bin/ > >>> -B/home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/lib/ > >>> -isystem > >>> /home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/include > >>> -isystem > >>> /home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/sys-include > >>> -I/home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/../libgcc > >>> -I/home/test/gcc12/x86_64-aros/libstdc++-v3/include/x86_64-aros > >>> -I/home/test/gcc12/x86_64-aros/libstdc++-v3/include > >>> -I/home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/libsupc++ -std=gnu++17 > >>> -nostdinc++ -fno-implicit-templates -Wall -Wextra -Wwrite-strings > >>> -Wcast-qual -Wabi=2 -fdiagnostics-show-location=once -ffunction-sections > >>> -fdata-sections -frandom-seed=floating_from_chars.lo -fimplicit-templates > >>> -g -O2 -c -o floating_from_chars.lo > >>> /home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/src/c++17/floating_from_chars.cc > >>> libtool: compile: /home/test/gcc12/./gcc/xgcc -shared-libgcc > >>> -B/home/test/gcc12/./gcc -nostdinc++ > >>> -L/home/test/gcc12/x86_64-aros/libstdc++-v3/src > >>> -L/home/test/gcc12/x86_64-aros/libstdc++-v3/src/.libs > >>> -L/home/test/gcc12/x86_64-aros/libstdc++-v3/libsupc++/.libs > >>> -B/home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/bin/ > >>> -B/home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/lib/ > >>> -isystem > >>> /home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/include > >>> -isystem > >>> /home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/sys-include > >>> -I/home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/../libgcc > >>> -I/home/test/gcc12/x86_64-aros/libstdc++-v3/include/x86_64-aros > >>> -I/home/test/gcc12/x86_64-aros/libstdc++-v3/include > >>> -I/home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/libsupc++ -std=gnu++17 > >>> -nostdinc++ -fno-implicit-templates -Wall -Wextra -Wwrite-strings > >>> -Wcast-qual -Wabi=2 -fdiagnostics-show-location=once -ffunction-sections > >>> -fdata-sections -frandom-seed=floating_from_chars.lo -fimplicit-templates > >>> -g -O2 -c > >>> /home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/src/c++17/floating_from_chars.cc > >>> -o floating_from_chars.o > >>> In file included from > >>> /home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/src/c++17/floating_from_chars.cc:77: > >>> /home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/src/c++17/fast_float/fast_float.h: > >>> In function 'void > >>> {anonymous}::fast_float::round_nearest_tie_even(adjusted_mantissa&, > >>> int32_t, callback)': > >>> /home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/src/c++17/fast_float/fast_float.h:2500:12: > >>> error: 'UINT64_MAX' was not declared in this scope > >>> 2500 | mask = UINT64_MAX; > >>> | ^~~~~~~~~~ > >>> /home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/src/c++17/fast_float/fast_float.h:1:1: > >>> note: 'UINT64_MAX' is defined in header '<cstdint>'; did you forget to > >>> '#include <cstdint>'? > >>> +++ |+#include <cstdint> > >>> 1 | // fast_float by Daniel Lemire > >>> make[7]: *** [Makefile:585: floating_from_chars.lo] Error 1 > >>> > >>> I can see from the preprocessor output, the necessary header is included - > >>> but is protected with > >>> #if !defined(__cplusplus) || defined(__STDC_LIMIT_MACROS) > >>> #endif > >>> > >>> And since the compiler doesn't define __STDC_LIMIT_MACROS on the command > >>> line, or in the source file - it is resolved. > >>> > >>> I'm not sure though, where is the correct place to fix this? > >> > >> > >> > >> In the C library. The C++ standard is very clear that __STDC_LIMIT_MACROS has no meaning whatsoever in C++. The C library's <stdint.h> must define those macros unconditionally for C++. The C99 standard said the macros are required for C++, so some C libraries follow that rule, but they should follow the C++ standard for C++ code, since C99 only defines C and had no business trying to specify how C++ works. > >> > >> If you cannot fix the libc headers then you can #define __STDC_LIMIT_MACROS in your target's os_defines.h header in libstdc++ (I think that's the right workaround, but I'm not at my desk to check it ... Search for that macro in the libstdc++ source to see how other targets handle non-conforming libc headers. ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Problem porting gcc 12 2023-04-12 20:44 ` Jonathan Wakely @ 2023-04-12 21:23 ` Kalamatee 0 siblings, 0 replies; 8+ messages in thread From: Kalamatee @ 2023-04-12 21:23 UTC (permalink / raw) To: Jonathan Wakely; +Cc: gcc-help [-- Attachment #1: Type: text/plain, Size: 6015 bytes --] Awesome, thanks! On Wed, 12 Apr 2023 at 21:44, Jonathan Wakely <jwakely.gcc@gmail.com> wrote: > On Tue, 11 Apr 2023 at 10:49, Jonathan Wakely <jwakely.gcc@gmail.com> > wrote: > > > > On Mon, 10 Apr 2023 at 13:34, Kalamatee <kalamatee@gmail.com> wrote: > > > > > > Thanks, I'll check that out. > > > > Actually, it looks like the problem might be much simpler: > > fast_float.h fails to include <stdint.h> > > > > Libstdc++ provides its own <stdint.h> header which should solve the > > __STDC_LIMITS_MACROS issue with non-conforming C libraries. > > > > I'll look into it ... > > > Now fixed for gcc-12 and trunk: > https://gcc.gnu.org/pipermail/gcc-patches/2023-April/615601.html > > > > > > > > On Mon, 10 Apr 2023, 13:15 Jonathan Wakely, <jwakely.gcc@gmail.com> > wrote: > > >> > > >> > > >> > > >> On Mon, 10 Apr 2023, 12:34 Kalamatee via Gcc-help, < > gcc-help@gcc.gnu.org> wrote: > > >>> > > >>> Hi, > > >>> > > >>> When im trying to build gcc12, I get the following error -: > > >>> > > >>> /bin/bash ../../libtool --tag CXX --tag disable-shared > --mode=compile > > >>> /home/test/gcc12/./gcc/xgcc -shared-libgcc -B/home/test/gcc12/./gcc > > >>> -nostdinc++ -L/home/test/gcc12/x86_64-aros/libstdc++-v3/src > > >>> -L/home/test/gcc12/x86_64-aros/libstdc++-v3/src/.libs > > >>> -L/home/test/gcc12/x86_64-aros/libstdc++-v3/libsupc++/.libs > > >>> > -B/home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/bin/ > > >>> > -B/home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/lib/ > > >>> -isystem > > >>> > /home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/include > > >>> -isystem > > >>> > /home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/sys-include > > >>> -I/home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/../libgcc > > >>> -I/home/test/gcc12/x86_64-aros/libstdc++-v3/include/x86_64-aros > > >>> -I/home/test/gcc12/x86_64-aros/libstdc++-v3/include > > >>> -I/home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/libsupc++ > -std=gnu++17 > > >>> -nostdinc++ -fno-implicit-templates -Wall -Wextra -Wwrite-strings > > >>> -Wcast-qual -Wabi=2 -fdiagnostics-show-location=once > -ffunction-sections > > >>> -fdata-sections -frandom-seed=floating_from_chars.lo > -fimplicit-templates > > >>> -g -O2 -c -o floating_from_chars.lo > > >>> > /home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/src/c++17/floating_from_chars.cc > > >>> libtool: compile: /home/test/gcc12/./gcc/xgcc -shared-libgcc > > >>> -B/home/test/gcc12/./gcc -nostdinc++ > > >>> -L/home/test/gcc12/x86_64-aros/libstdc++-v3/src > > >>> -L/home/test/gcc12/x86_64-aros/libstdc++-v3/src/.libs > > >>> -L/home/test/gcc12/x86_64-aros/libstdc++-v3/libsupc++/.libs > > >>> > -B/home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/bin/ > > >>> > -B/home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/lib/ > > >>> -isystem > > >>> > /home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/include > > >>> -isystem > > >>> > /home/kalam/builds/pc-x86_64-gcc12-clean/bin/linux-x86_64/tools/crosstools/x86_64-aros/sys-include > > >>> -I/home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/../libgcc > > >>> -I/home/test/gcc12/x86_64-aros/libstdc++-v3/include/x86_64-aros > > >>> -I/home/test/gcc12/x86_64-aros/libstdc++-v3/include > > >>> -I/home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/libsupc++ -std=gnu++17 > > >>> -nostdinc++ -fno-implicit-templates -Wall -Wextra -Wwrite-strings > > >>> -Wcast-qual -Wabi=2 -fdiagnostics-show-location=once > -ffunction-sections > > >>> -fdata-sections -frandom-seed=floating_from_chars.lo > -fimplicit-templates > > >>> -g -O2 -c > > >>> > /home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/src/c++17/floating_from_chars.cc > > >>> -o floating_from_chars.o > > >>> In file included from > > >>> > /home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/src/c++17/floating_from_chars.cc:77: > > >>> > /home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/src/c++17/fast_float/fast_float.h: > > >>> In function 'void > > >>> {anonymous}::fast_float::round_nearest_tie_even(adjusted_mantissa&, > > >>> int32_t, callback)': > > >>> > /home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/src/c++17/fast_float/fast_float.h:2500:12: > > >>> error: 'UINT64_MAX' was not declared in this scope > > >>> 2500 | mask = UINT64_MAX; > > >>> | ^~~~~~~~~~ > > >>> > /home/test/gcc12/src/gcc-12.2.0/libstdc++-v3/src/c++17/fast_float/fast_float.h:1:1: > > >>> note: 'UINT64_MAX' is defined in header '<cstdint>'; did you forget > to > > >>> '#include <cstdint>'? > > >>> +++ |+#include <cstdint> > > >>> 1 | // fast_float by Daniel Lemire > > >>> make[7]: *** [Makefile:585: floating_from_chars.lo] Error 1 > > >>> > > >>> I can see from the preprocessor output, the necessary header is > included - > > >>> but is protected with > > >>> #if !defined(__cplusplus) || defined(__STDC_LIMIT_MACROS) > > >>> #endif > > >>> > > >>> And since the compiler doesn't define __STDC_LIMIT_MACROS on the > command > > >>> line, or in the source file - it is resolved. > > >>> > > >>> I'm not sure though, where is the correct place to fix this? > > >> > > >> > > >> > > >> In the C library. The C++ standard is very clear that > __STDC_LIMIT_MACROS has no meaning whatsoever in C++. The C library's > <stdint.h> must define those macros unconditionally for C++. The C99 > standard said the macros are required for C++, so some C libraries follow > that rule, but they should follow the C++ standard for C++ code, since C99 > only defines C and had no business trying to specify how C++ works. > > >> > > >> If you cannot fix the libc headers then you can #define > __STDC_LIMIT_MACROS in your target's os_defines.h header in libstdc++ (I > think that's the right workaround, but I'm not at my desk to check it ... > Search for that macro in the libstdc++ source to see how other targets > handle non-conforming libc headers. > ^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2023-04-12 21:23 UTC | newest] Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2023-04-10 11:33 Problem porting gcc 12 Kalamatee 2023-04-10 11:33 ` Kalamatee 2023-04-10 12:14 ` Jonathan Wakely 2023-04-10 12:34 ` Kalamatee 2023-04-10 14:15 ` AW: " Stefan Franke 2023-04-11 9:49 ` Jonathan Wakely 2023-04-12 20:44 ` Jonathan Wakely 2023-04-12 21:23 ` Kalamatee
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