[pkg-gnupg-maint] Bug#1078464: missing dependency on libgpg-error-dev

[John Scott]

Package: libgpgmepp-dev
Version: 1.18.0-4.1+b2
Severity: important

Ahoy,

While investigating adding support for gpgsm via GPGME to Poppler for PDF signing, I found that the dependency chain isn't right. One can see that /usr/include/gpgme++/error.h tries to include <gpg-error.h> from libgpg-error-dev unconditionally, and since other gpgme++ headers include <gpgme++/error.h>, this quickly becomes a problem if <gpg-error.h> cannot be found. It seems like a happy coincidence that reverse dependencies aren't struggling with this problem: they all seem to pull libgpg-error-dev in for other reasons or to work around this. APT affirms that the dependency is not pulled in, not even transitively:
$ apt-get satisfy -o Debug::pkgDepCache::Marker=true -s "libgpgmepp-dev" "Conflicts: libgpg-error-dev"
  MarkInstall satisfy:command-line:amd64 < none -> 1 @un puN > FU=1
    MarkInstall libgpgmepp-dev:amd64 < 1.23.2-1 @ii pK NPb IPb > FU=0
      MarkInstall libgpgmepp6t64:amd64 < 1.23.2-1 @ii pK > FU=0
        MarkInstall libc6:amd64 < 2.39-6 @ii pK > FU=0
          MarkInstall libgcc-s1:amd64 < 14.2.0-1 @ii pK > FU=0
            MarkInstall gcc-14-base:amd64 < 14.2.0-1 @ii pK > FU=0
        MarkInstall libgpgme11t64:amd64 < 1.23.2-1 @ii pK NPb IPb > FU=0
          MarkInstall libassuan0:amd64 < 2.5.6-1+b1 @ii pK > FU=0
            MarkInstall libgpg-error0:amd64 < 1.50-3 @ii pK NPb IPb > FU=0
        MarkInstall libstdc++6:amd64 < 14.2.0-1 @ii pK > FU=0
  MarkDelete satisfy:command-line:amd64 < none -> 1 @un pumN > FU=1

This affects at least the GPGME versions in both unstable and experimental, but since Poppler requires the version in experimental (>= 1.19.0) anyway, there's hardly any reason to bother applying this to unstable. I expect that the version just uploaded to experimental will likely make it into Trixie, but let me know if I'm wrong about that. In any case there is no hurry.

Thanks,
John
-- 
🌐 Homepage https://johnscott.me
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 228 bytes
Desc: This is a digitally signed message part
URL: <http://alioth-lists.debian.net/pipermail/pkg-gnupg-maint/attachments/20240811/ce7b0e0b/attachment-0001.sig>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: smime.p7s
Type: application/pkcs7-signature
Size: 6270 bytes
Desc: not available
URL: <http://alioth-lists.debian.net/pipermail/pkg-gnupg-maint/attachments/20240811/ce7b0e0b/attachment-0001.p7s>