Re: Debian sa-exim with version 4.99-4

On 2025-11-23 Jeremy Harris via Exim-users <[email protected]> wrote:
> On 2025/11/23 1:02 PM, Andreas Metzler via Exim-users wrote:
> > --- src/local_scan.c    2025-10-27 13:16:13.000000000 +0000
> > +++ ../local_scan.c     2025-11-23 12:58:49.780675405 +0000
> > @@ -59,6 +59,8 @@
> >   int
> >   local_scan(int fd, uschar **return_text)
> >   {
> > +       uschar *expand_result;
> > +       expand_result = expand_string("blah");
> >   return LOCAL_SCAN_ACCEPT;
> >   }
> > 
> > yields
> > cc -o exim -Wl,-z,relro -Wl,-z,now acl.o atrn.o base64.o child.o [...]
> > /usr/bin/ld: local_scan.o: in function `local_scan':
> > ./b-exim4-daemon-light/build-Linux-x86_64/../src/local_scan.c:63:(.text+0x10): undefined reference to `expand_string'

> Thanks; 66a452cb6128 addresses

Hello,

Cherry-picking this yields this error with dummy local_scan above.

cc -DLOCAL_SCAN -c -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/tmp/EXIM4/exim4=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection  -D_LARGEFILE_SOURCE -fno-strict-aliasing -Wall -Wdate-time -D_FORTIFY_SOURCE=2 -I.  -o local_scan.o ../src/local_scan.c
In file included from ../src/local_scan.c:31:
../src/local_scan.c: In function 'local_scan':
../src/local_scan.h:207:35: error: '_Generic' selector of type 'char *' is not compatible with any association
  207 | #define expand_string(X) _Generic((X),     \
      |                                   ^
../src/local_scan.c:63:24: note: in expansion of macro 'expand_string'
   63 |        expand_result = expand_string("blah");
      |                        ^~~~~~~~~~~~~
../src/local_scan.c:62:16: warning: variable 'expand_result' set but not used [-Wunused-but-set-variable]
   62 |        uschar *expand_result;
      |                ^~~~~~~~~~~~~
make[3]: *** [Makefile:996: local_scan.o] Error 1


cu Andreas
-- 
`What a good friend you are to him, Dr. Maturin. His other friends are
so grateful to you.'
`I sew his ears on from time to time, sure'

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