DO NOT REPLY TO THIS EMAIL, BUT PLEASE POST YOUR BUG RELATED COMMENTS THROUGH THE WEB INTERFACE AVAILABLE AT <http://nagoya.apache.org/bugzilla/show_bug.cgi?id=26088>. ANY REPLY MADE TO THIS MESSAGE WILL NOT BE COLLECTED AND INSERTED IN THE BUG DATABASE.
http://nagoya.apache.org/bugzilla/show_bug.cgi?id=26088 regexp broken, pcre conflicts with HP-UX system lib with DSO and gcc Summary: regexp broken, pcre conflicts with HP-UX system lib with DSO and gcc Product: Apache httpd-2.0 Version: 2.0.48 Platform: HP OS/Version: HP-UX Status: NEW Severity: Normal Priority: Other Component: Core AssignedTo: [email protected] ReportedBy: [EMAIL PROTECTED] Regular expression support is completely broken under HP-UX 11.0, whether in core or in modules such as mod_rewrite. Compiled with gcc 3.3 (32-bit) and with most eveverything as DSOs (shared libraries). Also compiled with OpenSSL 0.9.7c which are dynamic libraries themselves. This appears to be a link-time conflict between the embedded PCRE library in Apache and the libc system library in HP-UX. HP's /usr/lib/libc.sl library defines the code symbols regcomp, regexec, regerror, and regfree; all of which are incompatible with pcre's posix api's (or at least pcre's headers). I was able to determine that during the Apache compile, the embedded PCRE header files were being used (which defined all the REG* enum identifiers, such as REG_NOMATH=17). But at runtime the call to regexec inside the APR wrappers (in util.c) would routinely get back result codes of 20. Under HP-UX, REG_NOMATCH is defined to be 20. Interesting no core was ever produced, but no regex's would match either. I was also able to determine that during the libtool linking of .libs/httpd that the pcreposix.o object file would never be inserted into the executable (despite the pcre library being presented to libtool's link command). By carefully reordering the low-level link command executed by libtool, I was able to force the pcreposix.o object file into httpd. I basically moved the pcre library immediately after libmain instead of after all the OpenSSL dynamic library link flags. This allowed the core regex's to work (such as in DirectoryMatch), but those in modules such as mod_rewrite would still fail. I eventually got everything to work by simply renaming the four functions in the Apache codebase so they no longer conflicted with HP's: regcomp() -> posix_regcomp() regexec() -> posix_regexec() regerror() -> posix_regerror() regfree() -> posix_regfree() Those appear in these source files: server/util.c srclib/apr/test/internal/testregex.c srclib/pcre/pcreposix.c, .h srclib/pcre/pcretest.c include/pcreposix.h With no changes other than renaming those four function identifiers, regular expressions are now fully working both in core and in modules. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
