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I'm trying to build httpd 2.4.3 from source. I've compiled APR and APR-util (with openssl), but libtool is putting an empty include directory in the command, and it breaks. For example:

/usr/local/web/httpd-apr/build-1/libtool --silent --mode=link gcc -std=gnu99 -g -O2 -I              -L/usr/local/opt/openssl/lib   -o ab  ab.lo       /usr/local/web/httpd-apr-util/lib/ -lexpat -liconv /usr/local/web/httpd-apr/lib/ -lpthread  
i686-apple-darwin11-llvm-gcc-4.2: ab: No such file or directory
make[1]: *** [ab] Error 1
make: *** [all-recursive] Error 1

If you look at the -I flag, you'll see that it is followed by several blank spaces before -L/usr/local/opt/openssl/lib. As a result, I get the "no such file or directory" error. I've tried running libtool myself without the mysterious -I, but that doesn't work for everything. Am I missing a configuration option or something?

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up vote 0 down vote accepted

It seems like the -I was from EXTRA_CFLAGS. Setting CFLAGS before running configure worked. I'm leaving this up in case anyone else runs into the same problem.

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