Configuring nginx with g++

Maxim Dounin mdounin at
Thu Nov 11 04:43:26 MSK 2010


On Wed, Nov 10, 2010 at 06:59:44PM -0500, Decimus Phostle wrote:

> Hello,
> Q1) I have been trying to compile nginx using the C++ compiler as follows:
> $ ./configure --with-cc=g++ --add-module=/path/to/module --prefix=/some/prefix
> (Also, tried "CC=g++ ./configure ...").
> Both these commands result in this error:
> ...
> creating objs/Makefile
> checking for int size ...
> ./configure: error: can not detect int size
> $
> On tail'ing the objs/autoconf.err, the error is obvious(details
> below). How do I go about fixing this? And/or is this fixed in a later
> release? (I am using 0.8.52). Please let me know.

While this particular error probably should be fixed (it's as 
trivial as including stdio.h into test in auto/types/sizeof) - in 
general using C++ compiler to compile C code isn't going to 
produce anything good.  These are two different languages.

> Q2) The above issue was encountered while trying to write a
> handler/module in C++. Is there another way I should be approaching
> this?

Just create source file with appropriate extension and include 
nginx header files in an extern "C" block, then write C++ code.  
See src/misc/ngx_cpp_test_module.cpp for an example (really simple 
one though).

Maxim Dounin

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