On my Linux system MB_LEN_MAX is normally defined to 16 but when I use the macro in a program compiled with stdcxx the macro evaluates to 1. The test case goes like this:
$ cat test.cpp && make CPPOPTS="-DGETCONF_MB_LEN_MAX=`getconf MB_LEN_MAX`" test && ./test
#include <assert.h>
#include <limits.h>
int main ()
{
assert (MB_LEN_MAX == GETCONF_MB_LEN_MAX);
}
gcc -c -I/home/mbrown/stdcxx/include/ansi -D_RWSTDDEBUG -I/home/mbrown/stdcxx/include -I/home/mbrown/stdcxx-gcc-4.1.1-11s/include -I/home/mbrown/stdcxx/examples/include -DGETCONF_MB_LEN_MAX=16 -pedantic -nostdinc++ -g -W -Wall -Wcast-qual -Winline -Wshadow -Wwrite-strings -Wno-long-long -Wcast-align test.cpp
gcc u.o -o u -L/home/mbrown/stdcxx-gcc-4.1.1-11s/lib -lstd11s -lsupc++ -lm
test: test.cpp:6: int main(): Assertion `1 == 16' failed.
Aborted
Bug
Resolved
Critical
[Linux] MB_LEN_MAX incorrect
