>Number: 5435
>Category: os-other
>Synopsis: DSO build fails
>Confidential: no
>Severity: non-critical
>Priority: medium
>Responsible: apache
>State: open
>Class: sw-bug
>Submitter-Id: apache
>Arrival-Date: Tue Dec 7 08:40:00 PST 1999
>Last-Modified:
>Originator: [EMAIL PROTECTED]
>Organization:
apache
>Release: 1.3.9
>Environment:
ReliantUNIX-N itsrm2 5.44 C2001 RM400 1/256 R4000
All current patches
Compiler CDS++ 2.0A00
>Description:
Attrempt to compile out-of-the-box:
configure --prefix=/u1/apache --enable-module=most --enable-shared=max
results in
cc -DSVR4 -D_XPG_IV -DHAS_DLFCN -DUSE_MMAP_FILES
-DUSE_SYSVSEM_SERIALIZED_ACCEPT -DNEED_UNION_SEMUN -DUSE_HSREGEX -DUSE_EXPAT
-I./lib/expat-lite `./apaci` -Wl,-Blargedynsym \
-o httpd buildmark.o modules.o modules/standard/libstandard.a
main/libmain.a ./os/unix/libos.a ap/libap.a regex/libregex.a
lib/expat-lite/libexpat.a -lsocket -lnsl -lc
Undefined first referenced
symbol in file
dlsym ./os/unix/libos.a(os.o)
ld: httpd: fatal error: Symbol referencing errors. No output written to httpd
The library -ldl is missing.
The reason is, Configure tests only for dlopen(). Unfortunately, dlopen()
exists in libc.so as well (I tend to call it a bug, actually), for this reason
-ldl is not used. The same problem was with glib as well.
>How-To-Repeat:
See the problem description. You'll need the ReliantUNIX 5.44 though :-)
>Fix:
Patch to Configure follows. It simply tests for both dlopen() and dlsym().
--- apache_1.3.9/src/Configure.org Mon Aug 16 04:49:08 1999
+++ apache_1.3.9/src/Configure Tue Dec 7 19:21:13 1999
@@ -1981,7 +1981,7 @@
fi
;;
* )
- if ./helpers/TestCompile func dlopen; then
+ if ./helpers/TestCompile func dlopen && ./helpers/TestCompile
funcdlsym; then
:
else
if ./helpers/TestCompile lib dl; then
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