When Pier told me that he'd never seen libhttpd.ep in his
own Apache directory, that gave me the first clue: my
Apache was somehow different from other Solaris builds.
Here's why.
Pursuant to this document: http://httpd.apache.org/docs/dso.html
I did this:
./configure --enable-rule=SHARED_CORE ...
My advice: DO NOT DO THIS, at least not on Solaris with gcc.
Solaris dynaloading works fine without it.
For the benefit of others, here is my setup.
I set up this environment (tcsh syntax):
setenv CC gcc
setenv LD_SHLIB gcc
setenv CFLAGS "-g -fPIC"
setenv CFLAGS_SHLIB "-g -fPIC"
Then ran this Apache config:
./configure \
"--with-layout=Apache" \
"--prefix=/export/home/cs/depot/package/apache_1.3.20" \
"--enable-module=rewrite" "--enable-shared=rewrite" \
"--enable-module=so" \
"$@"
Then a "make" and "make install".
The produces a libexec directory containing:
httpd.exp
mod_rewrite.so
I then used "apxs -g" to create a bogus little loadable
against this, and installed it. It worked fine.
Finally, on to mod_webapp.so, and that worked fine.
LESSONS LEARNED, for the benefit of those whose
warp connections are causing core dumps:
1. Always use gcc. Always use gcc. Always use gcc.
Why? Because it's the lowest common denominator.
Because the developers are building/testing with it.
Because ./configure likes it. Always use gcc.
2. Remember that ./configure scripts pay attention
to **environment variables** as well as command-line
options. This is evil and confusing, but that's
reality for you. Setenv CC, LD, etc.
a. Use gcc as the linker, not ld.
b. Make sure -fPIC is in the CFLAGS.
3. Look at "apxs" and make sure it matches those
aforementioned environment variables EXACTLY.
Especially look at the "LD" variables.
4. You don't need to use SHARED_CORE on Solaris 5.8
with mod_webapp.
5. After the 3rd recompile, "rm -rf" and start over.
You never know what garbage is lying around
that "make distclean" didn't get rid of.
Perhaps some of these advicelets are unnecessary,
but the combination worked for me.
Thanks to all who helped.
Eryq
