value of $CXX when building libraries

[Gabriel Dos Reis]

Per Bothner <per@bothner.com> writes:

[ detailled description of a fragile machinery snipped ]

| Adding all these files to the gcc/g++ command line makes for very
| long command lines.  This makes it harder to watch and scan the make
| output.  It would be nice if we could factor those out. So I suggest
| either of:
| 
| (a) Create a temporary shell script or binary to be used solely for
| compiling target libraries:
|         #!/bin/sh
|         exec /home/bothner/GNU/linux-gcc/gcc/g++ -B... -L.. -I.. "$@"
| This could be called "new-g++" by analogy with "new-as" and "new-ld".
| I don't know which directory to put it in; either libstdc++-v3 or
| some new "target-bin" directory, possible i686-pc-linux-gnu/bin.
| In that case we could just call the script "g++" and have to option
| of just setting $PATH to include i686-pc-linux-gnu/bin.

I'm leaning toward a binary target/bin/ which knows by itself which -I
and -L flags ae right.

[...]

| Of course whatever solution we come up with for $CXX we should
| probably also do for $CC.  It is just that the problem is worse
| for $CXX because of libstdc++.

Agreed.

-- Gaby
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