The exim ebuild causes /usr/include/exim to be included prior to the ebuild header files, leading to unexpected results, as e.g. config.h is used from there. In my case this config.h didn't have HAVE_LOCAL_SCAN set, leading to spam filter failure...
interesting, will have a look, do you have a buildlog by chance?
Unfortunately not, as the spam filter was affected I had to act rapidly :-( I still have the results of a manual "gcc -E" which I required to trace down the problem and this shows (excerpt): # 1 "local_scan.h" 1 # 20 "local_scan.h" # 1 "/usr/include/exim/config.h" 1 3 4 # 21 "local_scan.h" 2 # 1 "/usr/include/exim/mytypes.h" 1 3 4 # 53 "/usr/include/exim/mytypes.h" 3 4 typedef unsigned char uschar; typedef unsigned BOOL; # 22 "local_scan.h" 2 # 1 "/usr/include/exim/store.h" 1 3 4 # 15 "/usr/include/exim/store.h" 3 4 enum { POOL_MAIN, POOL_PERM, POOL_SEARCH };
what USE-flags do you have enabled for Exim? can you post the output of `qlist exim | grep /usr/include`?
# equery uses exim [ Legend : U - final flag setting for installation] [ : I - package is installed with flag ] [ Colors : set, unset ] * Found these USE flags for mail-mta/exim-4.92-r1: U I - - X : Add support for X11 - - arc : Adds support for Authenticated Receive Chain (ARC) - - dane : Adds support for DNS-based Authentication of Named Entities - - dcc : Adds support for Distributed Checksum Clearinghouse (DCC) + + dkim : Adds support for DomainKeys Identified Mail (DKIM) + + dlfunc : Install local_scan.h header to compile separate dlfunc libraries - - dmarc : Adds support for DMARC + + dnsdb : Adds support for a DNS search for a record whose domain name is the supplied query - - doc : Add extra documentation (API, Javadoc, etc). It is recommended to enable per package instead of globally - - dovecot-sasl : Adds support for Dovecot's authentication - - dsn : Adds support for Delivery Status Notifications (DSN) + + exiscan-acl : Patch providing support for content scanning - - gnutls : Prefer net-libs/gnutls as SSL/TLS provider (ineffective with USE=-ssl) + + idn : Enable support for Internationalized Domain Names + + ipv6 : Add support for IP version 6 + + ldap : Add LDAP support (Lightweight Directory Access Protocol) - - libressl : Use dev-libs/libressl instead of dev-libs/openssl when applicable (see also the ssl useflag) + + lmtp : Adds support for lmtp - - maildir : Add support for maildir (~/.maildir) style mail spools - - mbx : Adds support for UW's mbx format + + mysql : Add mySQL Database support - - nis : Support for NIS/YP services + + pam : Add support for PAM (Pluggable Authentication Modules) - DANGEROUS to arbitrarily flip - - perl : Add optional support/bindings for the Perl language - - pkcs11 : Require pkcs11 support in net-libs/gnutls with USE=gnutls - - postgres : Add support for the postgresql database + + prdr : Adds support for Per-Recipient Data Response - - proxy : Add support for being behind a proxy, such as HAProxy - - radius : Add support for RADIUS authentication - - redis : Adds support for querying dev-db/redis + + sasl : Add support for the Simple Authentication and Security Layer + + spf : Adds support for Sender Policy Framework - - sqlite : Add support for sqlite - embedded sql database - - srs : Adds support for Sender Rewriting Scheme + + ssl : Add support for SSL/TLS connections (Secure Socket Layer / Transport Layer Security) + + syslog : Enable support for syslog + + tcpd : Add support for TCP wrappers + + tpda : Adds support for Transport Post-Delivery Actions # qlist exim | grep /usr/include /usr/include/exim/local_scan.h /usr/include/exim/config.h /usr/include/exim/store.h /usr/include/exim/mytypes.h
It seems that ebuild should just append HAVE_LOCAL_SCAN=yes to Makefile if dlfunc USE-flag is enabled. This is due to the following change in 4.92: https://github.com/Exim/exim/commit/9723f9667322bf96db786fa49d53139a48fabc5e I don't see how it can include /usr/include/exim/config.h.
(In reply to Andreas Steinmetz from comment #2) > Unfortunately not, as the spam filter was affected I had to act rapidly :-( > I still have the results of a manual "gcc -E" which I required to trace down > the problem and this shows (excerpt): > > # 1 "local_scan.h" 1 > # 20 "local_scan.h" > # 1 "/usr/include/exim/config.h" 1 3 4 > # 21 "local_scan.h" 2 > # 1 "/usr/include/exim/mytypes.h" 1 3 4 > # 53 "/usr/include/exim/mytypes.h" 3 4 > typedef unsigned char uschar; > typedef unsigned BOOL; > # 22 "local_scan.h" 2 > # 1 "/usr/include/exim/store.h" 1 3 4 > # 15 "/usr/include/exim/store.h" 3 4 > enum { POOL_MAIN, POOL_PERM, POOL_SEARCH }; I guess you have run gcc after src_install phase where ebuild modifies local_scan.h to include <exim/config.h>.
Narrowed it down further. I did a complete exim rebuild with identical configuration. The problem is in config.h: #define DLOPEN_LOCAL_SCAN yes /* HAVE_LOCAL_SCAN not set */ So HAVE_LOCAL_SCAN is not set during the ebuild which causes the code calling local_scan() in receive.c not being built. In other words, due to the missing definition of HAVE_LOCAL_SCAN the whole exim-4.92-localscan_dlopen.patch will never work.
Thanks, does this work for you? --- a/mail-mta/exim/files/exim-4.74-localscan_dlopen.patch +++ b/mail-mta/exim/files/exim-4.74-localscan_dlopen.patch @@ -29,11 +29,12 @@ diff -Naur exim-4.32/src/EDITME exim-4.32-dlopen/src/EDITME diff -Naur exim-4.32/src/config.h.defaults exim-4.32-dlopen/src/config.h.defaults --- src/config.h.defaults 2004-04-15 08:27:01.000000000 +0000 +++ src/config.h.defaults 2004-05-06 16:16:30.000000000 +0000 -@@ -20,6 +20,8 @@ +@@ -20,6 +20,9 @@ #define AUTH_PLAINTEXT #define AUTH_SPA +#define DLOPEN_LOCAL_SCAN ++#define HAVE_LOCAL_SCAN + #define BIN_DIRECTORY
Unfortunately not. The modified patch gets applied but then in ./build-exim-gentoo/config.h: #define DLOPEN_LOCAL_SCAN yes /* HAVE_LOCAL_SCAN not set */ I checked src/config.h.defaults: #define DLOPEN_LOCAL_SCAN #define HAVE_LOCAL_SCAN Something creating config.h from config.h.defaults seems to disable HAVE_LOCAL_SCAN.
It seems, the culprit is Local/Makefile which has DLOPEN_LOCAL_SCAN=yes but not HAVE_LOCAL_SCAN.
@@ -365,6 +365,8 @@ src_configure() { if use dlfunc; then cat >> Makefile <<- EOC EXPAND_DLFUNC=yes + HAVE_LOCAL_SCAN=yes + DLOPEN_LOCAL_SCAN=yes EOC fi That bit should do it then for you. I'll commit this as -r2.
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=47afd5252208d69ef4df50a86442bdd73287530e commit 47afd5252208d69ef4df50a86442bdd73287530e Author: Fabian Groffen <grobian@gentoo.org> AuthorDate: 2019-06-28 13:50:23 +0000 Commit: Fabian Groffen <grobian@gentoo.org> CommitDate: 2019-06-28 13:50:40 +0000 mail-mta/exim: fix USE=dlfunc Closes: https://bugs.gentoo.org/688572 Signed-off-by: Fabian Groffen <grobian@gentoo.org> Package-Manager: Portage-2.3.66, Repoman-2.3.11 .../{exim-4.92-r1.ebuild => exim-4.92-r2.ebuild} | 59 ++++++++++++++-------- mail-mta/exim/exim-4.92.ebuild | 2 + .../exim/files/exim-4.92-localscan_dlopen.patch | 2 +- 3 files changed, 40 insertions(+), 23 deletions(-)
