Hello,
While trying to build GCC 5.3.0 with 4.8.2 (on x86_64-linux-gnu), I get
this:
--8<---------------cut here---------------start------------->8---
libtool: compile: g++ -DHAVE_CONFIG_H -I. -I../../gcc-5.3.0/libcc1 -I ../../gcc-5.3.0/libcc1/../include -I ../../gcc-5.3.0/libcc1/../libgcc -I ../gcc -I../../gcc-5.3.0/libcc1/../gcc -I ../../gcc-5.3.0/libcc1/../gcc/c -I ../../gcc-5.3.0/libcc1/../gcc/c-family -I ../../gcc-5.3.0/libcc1/../libcpp/include -I/tmp/guix-build-gcc-cross-boot0-5.3.0.drv-0/build/./gmp -I/tmp/guix-build-gcc-cross-boot0-5.3.0.drv-0/gcc-5.3.0/gmp -I/tmp/guix-build-gcc-cross-boot0-5.3.0.drv-0/build/./mpfr/src -I/tmp/guix-build-gcc-cross-boot0-5.3.0.drv-0/gcc-5.3.0/mpfr/src -I/tmp/guix-build-gcc-cross-boot0-5.3.0.drv-0/gcc-5.3.0/mpc/src -W -Wall -fvisibility=hidden -g -O2 -MT callbacks.lo -MD -MP -MF .deps/callbacks.Tpo -c ../../gcc-5.3.0/libcc1/callbacks.cc -fPIC -DPIC -o .libs/callbacks.o
In file included from ../../gcc-5.3.0/libcc1/../include/hashtab.h:40:0,
from ../../gcc-5.3.0/libcc1/callbacks.hh:24,
from ../../gcc-5.3.0/libcc1/callbacks.cc:23:
../../gcc-5.3.0/libcc1/../include/ansidecl.h:171:64: error: declaration of 'int asprintf(char**, const char*, ...)' has a different exception specifier
# define ATTRIBUTE_NONNULL(m) __attribute__ ((__nonnull__ (m)))
^
../../gcc-5.3.0/libcc1/../include/ansidecl.h:200:80: note: in expansion of macro 'ATTRIBUTE_NONNULL'
#define ATTRIBUTE_PRINTF(m, n) __attribute__ ((__format__ (__printf__, m, n))) ATTRIBUTE_NONNULL(m)
^
../../gcc-5.3.0/libcc1/../include/ansidecl.h:202:28: note: in expansion of macro 'ATTRIBUTE_PRINTF'
#define ATTRIBUTE_PRINTF_2 ATTRIBUTE_PRINTF(2, 3)
^
../../gcc-5.3.0/libcc1/../include/libiberty.h:628:50: note: in expansion of macro 'ATTRIBUTE_PRINTF_2'
extern int asprintf (char **, const char *, ...) ATTRIBUTE_PRINTF_2;
^
In file included from ../../gcc-5.3.0/libcc1/../include/libiberty.h:49:0,
from ../../gcc-5.3.0/libcc1/callbacks.cc:24:
/gnu/store/hkwl20n5ca87bczjrlv8b8vfm26vcrxy-glibc-bootstrap-0/include/stdio.h:405:12: error: from previous declaration 'int asprintf(char**, const char*, ...) throw ()'
extern int asprintf (char **__restrict __ptr,
^
In file included from ../../gcc-5.3.0/libcc1/../include/hashtab.h:40:0,
from ../../gcc-5.3.0/libcc1/callbacks.hh:24,
from ../../gcc-5.3.0/libcc1/callbacks.cc:23:
../../gcc-5.3.0/libcc1/../include/ansidecl.h:171:64: error: declaration of 'int vasprintf(char**, const char*, __va_list_tag*)' has a different exception specifier
# define ATTRIBUTE_NONNULL(m) __attribute__ ((__nonnull__ (m)))
^
../../gcc-5.3.0/libcc1/../include/ansidecl.h:200:80: note: in expansion of macro 'ATTRIBUTE_NONNULL'
#define ATTRIBUTE_PRINTF(m, n) __attribute__ ((__format__ (__printf__, m, n))) ATTRIBUTE_NONNULL(m)
^
../../gcc-5.3.0/libcc1/../include/libiberty.h:640:55: note: in expansion of macro 'ATTRIBUTE_PRINTF'
extern int vasprintf (char **, const char *, va_list) ATTRIBUTE_PRINTF(2,0);
^
In file included from ../../gcc-5.3.0/libcc1/../include/libiberty.h:49:0,
from ../../gcc-5.3.0/libcc1/callbacks.cc:24:
/gnu/store/hkwl20n5ca87bczjrlv8b8vfm26vcrxy-glibc-bootstrap-0/include/stdio.h:399:12: error: from previous declaration 'int vasprintf(char**, const char*, __va_list_tag*) throw ()'
extern int vasprintf (char **__restrict __ptr, const char *__restrict __f,
^
Makefile:442: recipe for target 'callbacks.lo' failed
--8<---------------cut here---------------end--------------->8---
My understanding of <https://gcc.gnu.org/install/prerequisites.html> is
that GCC 4.8.2 should be enough to build 5.3.0 since it’s a C++98
compiler; is this correct?
I noticed that the fix for
<https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60125> changed
‘check_redeclaration_exception_specification’, which is implements the
check leading to this error, and this change is more recent than 4.8.2.
Could it explain this error?
Thanks,
Ludo’.
