how to remove path from the default gcc search path

Question

When compiling with boost library in Ubuntu, how can I make sure the GCC use my boost path?

The current Boost version in Ubuntu is 1.46.

I compile version 1.52.

I know I can use "-L/path/to/new/lib" to add library to the search path,but how can I make sure GCC wont link to the old library?

Regards, Tomer

score 2 · Answer 1 · answered Dec 08 '12 at 23:08

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The -L option adds library search paths to the beginning of the search path, so if you have your own version it will be found before the default system version.

answered Dec 08 '12 at 23:08

kallikak

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score 1 · Answer 2 · edited May 23 '17 at 12:12

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Just pass the -v option to gcc or g++ to understand what linking command it is running. You could even add -Wl,--verbose to have the ld command be also verbose.

You might also be interested in -rpath, see this answer.

edited May 23 '17 at 12:12

Community

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answered Dec 08 '12 at 23:03

Basile Starynkevitch

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How about the `--sysroot` option? – Dec 08 '12 at 23:04
@H2CO3: doesn't `--sysroot` only apply when configuring GCC ?? – Basile Starynkevitch Dec 08 '12 at 23:06
I believe that's also an option when compiling/linking. IIRC it's the equivalent of `-isysroot` (which is included in Apple's fork of GCC). – Dec 08 '12 at 23:10

how to remove path from the default gcc search path

2 Answers2