[omniORB] Setting compiler flags for omniORB

[Stephen Hansen]

Hi, all.
I'm trying to build omniORB on Mac OS X 10.5, so that it can be run on both
10.5 and 10.4. By default it seems that compiles only run on 10.5, and in
order to include support for 10.4 I need to pass the "-mmacosx-version-min=
10.4" compiler flag.

The problem is I can't seem to do it :) Setting the CFLAGS and CXXFLAGS
environment variables doesn't appear to do anything; the flags aren't
getting added onto the compiler's command lines.

Any idea how to set these flags?

Thanks in advance.

--Stephen
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[Floris Bruynooghe]

Hello Stephen

Post by Stephen Hansen
The problem is I can't seem to do it :) Setting the CFLAGS and CXXFLAGS
environment variables doesn't appear to do anything; the flags aren't
getting added onto the compiler's command lines.

The easy way is doing:

$ CC="$my_cc $my_cflags" CXX="$my_CC $my_cxxflags" ./configure $my_opts

The hard way is editing mk/beforeauto.mk and looking for the lines:
...
# Default compiler rules
...
CDEBUGFLAGS = ...
...
CXXDEBUGFLAGS = ...

and adding your flags to there.


Personally I have the ambition of looking into CFLAGS some day I have
time and seeing if I can't produce a patch that makes the build system
honour it.

Regards
Floris

[Stephen Hansen]

Post by Floris Bruynooghe
Hello Stephen

Post by Stephen Hansen
The problem is I can't seem to do it :) Setting the CFLAGS and CXXFLAGS
environment variables doesn't appear to do anything; the flags aren't
getting added onto the compiler's command lines.

$ CC="$my_cc $my_cflags" CXX="$my_CC $my_cxxflags" ./configure $my_opts

Wonderful! That works. I didn't think of hiding them in CC :)

Post by Floris Bruynooghe
Personally I have the ambition of looking into CFLAGS some day I have
time and seeing if I can't produce a patch that makes the build system
honour it.

I tried doing that myself. And failed horribly at groking omni's build
system.

I was heartbroken with the possibility that I might have to maintain
separate Mac OS X 10.5 and 10.4 installers for our mac customers to install
omniORB(py), for awhile there. You saved me! :) Thanks.

--Stephen
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