The compiler's C++ headers do not appear to work properly on AIX when
the compiler is run with -D_LARGE_FILES. This macro causes the
system headers to #define symbols like fopen, while the C++ headers
unconditionally #undef these symbols.
Environment:
System: AIX bigblue 2 5 000F699D4C00
host: powerpc-ibm-aix5.2.0.0
build: powerpc-ibm-aix5.2.0.0
target: powerpc-ibm-aix5.2.0.0
configured with: /usr0/slammert/gcc-3.4.3/configure --with-as=/usr/bin/as
--with-ld=/usr/bin/ld --disable-nls --enable-languages=c,c++ --enable-threads
--enable-version-specific-runtime-libs
How-To-Repeat:
On AIX 5.2, compile the following program with
3.4.3 g++ -D_LARGE_FILES:
#include <iostream>
int main(void) { return 0; }
You will get output similar to the following:
In file included from
/usr/local/lib/gcc/powerpc-ibm-aix5.2.0.0/3.4.3/include/c++/powerpc-ibm-aix5.2.0.0/bits/c++locale.h:43,
from
/usr/local/lib/gcc/powerpc-ibm-aix5.2.0.0/3.4.3/include/c++/iosfwd:46,
from
/usr/local/lib/gcc/powerpc-ibm-aix5.2.0.0/3.4.3/include/c++/ios:44,
from
/usr/local/lib/gcc/powerpc-ibm-aix5.2.0.0/3.4.3/include/c++/ostream:45,
from
/usr/local/lib/gcc/powerpc-ibm-aix5.2.0.0/3.4.3/include/c++/iostream:45,
from bug0.C:1:
/usr/local/lib/gcc/powerpc-ibm-aix5.2.0.0/3.4.3/include/c++/cstdio:108: error:
`::fgetpos' has not been declared
/usr/local/lib/gcc/powerpc-ibm-aix5.2.0.0/3.4.3/include/c++/cstdio:110: error:
`::fopen' has not been declared
/usr/local/lib/gcc/powerpc-ibm-aix5.2.0.0/3.4.3/include/c++/cstdio:115: error:
`::freopen' has not been declared
/usr/local/lib/gcc/powerpc-ibm-aix5.2.0.0/3.4.3/include/c++/cstdio:118: error:
`::fsetpos' has not been declared
------- Additional Comments From dsanderson at panasas dot com 2005-03-07
19:12 -------
Fix:
I can work around this problem and still compile a program with a
64-bit off_t by compiling with -maix64 instead of -D_LARGE_FILES.
--
Summary: AIX g++ -D_LARGE_FILES fails to compile #include
<iostream>
Product: gcc
Version: 3.4.3
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: dsanderson at panasas dot com
CC: gcc-bugs at gcc dot gnu dot org
GCC build triplet: powerpc-ibm-aix5.2.0.0
GCC host triplet: powerpc-ibm-aix5.2.0.0
GCC target triplet: powerpc-ibm-aix5.2.0.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20366
