Small compiler issues

[Arnaud Lacombe <lacombar%gmail.com@localhost>]

Hi all,

I've got two small issues with the GCC shipped with NetBSD. The system
I'm talking about is running 5.x, but AFAIK, there hasn't been any
majort upgrade since.

1)
The "-print-file-name" option does not seem to be functional. This
happen only with the "system" compiler. The "tools" compiler is
working as expected:

"System" compiler:
% gcc -print-file-name=include
include

"Tools" compiler:
% /tools/tools-i386/bin/i486--netbsdelf-gcc -print-file-name=include
/tools/tools-i386/lib/gcc/i486--netbsdelf/4.1.3/include

2)
When using `gcc' to build a C++ source, appending `-lstdc++' to the
library list does not automatically bring `-lm'. As shown below:

% echo 'int main() { return 0; }' | gcc -x c++ -o /dev/null - -lstdc++
/usr/lib/libstdc++.so: undefined reference to `log'
/usr/lib/libstdc++.so: undefined reference to `sqrt'
/usr/lib/libstdc++.so: undefined reference to `cosh'
/usr/lib/libstdc++.so: undefined reference to `ceil'
/usr/lib/libstdc++.so: undefined reference to `floor'
[...]

The following works fine:
% echo 'int main() { return 0; }' | gcc -x c++ -o /dev/null - -lstdc++ -lm

FreeBSD complete successfully with the first command, as does Linux.
So this issue would mostly be about having the same behavior across
all system.

Any hints on these issues ?

Thanks in advance,
 - Arnaud