Re: Facing error in git-imap-send while compiling Git

[Nirmal Khedkar <nirmalhk7@gmail.com>]

Hey Johannes!

On Tue, Jan 21, 2020 at 3:05 AM Johannes Schindelin
<Johannes.Schindelin@gmx.de> wrote:
>
> Hi,
>
> On Tue, 21 Jan 2020, Nirmal Khedkar wrote:
>
> > On Fri, Jan 17, 2020 at 7:05 PM Johannes Schindelin
> > <Johannes.Schindelin@gmx.de> wrote:
> > >
> > > On Fri, 17 Jan 2020, Nirmal Khedkar wrote:
> > >
> > > > On Fri, Jan 17, 2020 at 4:21 AM Junio C Hamano <gitster@pobox.com> wrote:
> > > > >
> > > > > Perhaps the thread
> > > > >
> > > > >   https://lore.kernel.org/git/xmqqpnfv3tq4.fsf@gitster-ct.c.googlers.com
> > > > >
> > > > > may help?
> > > >
> > > > It did, to the extent that I now know why I'm facing these errors out
> > > > of the blue.
> > > >
> > > > I'm  not quite sure as to what am I supposed to do right now, should I
> > > > wait for Liam's patch to be merged,  or should I implement his fixes
> > > > locally or should I just downgrade my openssl?
> > > >
> > > > Liam's PR (#516 on GitGitGadget [1]) haven't yet passed all build
> > > > checks and I guess its still a work in progress. Nevertheless I've
> > > > tried implementing his fixes to imap-send.c, and the make still fails.
> > > > Am I missing something here?
> > >
> > > Speaking for myself, I am still waiting for
> > > https://public-inbox.org/git/xmqqpnfv3tq4.fsf@gitster-ct.c.googlers.com/
> > > to be addressed adequately. I think this is the main blocker.
> > >
> > > You could be that person who addresses this, as already 10 days went past
> > > without even so much as an acknowledgement of Junio's suggestion. Maybe
> > > you can make it work, and submit a fixed patch (You could take authorship
> > > and add a footer "Original-patch-by: Liam Huang <liamhuang0205@gmail.com>"
> > > because it is most likely a total rewrite of Liam's patch).
> > >
> > > Ciao,
> > > Johannes
> >
> > The OpenSSL version on my system is 1.1.1. I've tried implementing
> > Junio's suggestions, and it just doesn't work.
>
> Does the code otherwise compile cleanly with `make DEVELOPER=1`?
>
> > It gives me the same
> > error as it gave me earlier.
> >
>
> Those are linker errors, meaning that the symbols were not found in the
> libraries.
>
> If you build with `make V=1 DEVELOPER=1` you should see that
> `git-imap-send` links in OpenSSL via -lssl (and/or -lcrypto). Is this the
> case for you?

Doing "echo DEVELOPER=1 >config.mak" does not help in any way. I get
the same errors. Here's my diff, in case I have been making mistakes
all along.


---
diff --git a/imap-send.c b/imap-send.c
index 6c54d8c29d..73ed3bc287 100644
--- a/imap-send.c
+++ b/imap-send.c
@@ -42,6 +42,12 @@ typedef void *SSL;
 #define USE_CURL_DEFAULT 0
 #endif

+#if OPENSSL_VERSION_NUMBER < 0x10100000L
+    #define OPENSSL_sk_num(x) sk_GENERAL_NAME_num(x)
+    #define OPENSSL_sk_value(x,y) sk_GENERAL_NAME_value((x),(y))
+    #define OPENSSL_sk_pop_free(x,y) sk_GENERAL_NAME_pop_free((x),(y))
+#endif
+
 static int verbosity;
 static int use_curl = USE_CURL_DEFAULT;

@@ -59,6 +65,8 @@ static struct option imap_send_options[] = {
 #define DRV_BOX_BAD     -2
 #define DRV_STORE_BAD   -3
---

From my limited knowledge of OpenSSL libraries, I think the error has
more to do with 'SSL_library_init()' , which appears like a
constructor to the OpenSSL library. I found these emails regarding
"if" cases around this function. Please check out these patches:
1. Rosen Penev:
https://lore.kernel.org/git/20181227023548.396-1-rosenp@gmail.com/
2. eroen: https://lore.kernel.org/git/20170112104219.563497-1-git-scm@occam.eroen.eu/

Are the fixes made in these patches relevant here. Please let me know
if I'm going wrong.

Thanks!
Nirmal Khedkar
https://nirmalhk7.github.io