Subject: [PATCH] Re: bug#63572: htmlcxx-0.87 fails to build

From: "Dr. Arne Babenhauserheide" <[email-masked]>
Date: Sat, 20 May 2023 23:43:46 +0200

Hi Bruno,

Bruno Victal <[email-masked]> writes:
>> So this may just need compiler parameters to set C++11 instead of C++17
>> as target.
>
> Looking at the README file from <https://sourceforge.net/p/htmlcxx/code/ci/master/tree/>,
> it looks to me that upstream has moved to <https://github.com/bonitao/htmlcxx>. (judging by the name of the repo owner)
> Can you try asking upstream for a new release? The last commit (<https://github.com/bonitao/htmlcxx/commit/0ffa3e90b7dc3944f199fd80ab47c2a82589209a>)
> has the message 'Fix c+11 compilation'.

I tried to build from the latest commit, but it did not build.

But I could now test adding the std argument and that works.

$ ./pre-inst-env guix build htmlcxx
/gnu/store/3bqrqs2zzx1gy4xc1g9i59z8nnhwv2rs-htmlcxx-0.87

A patch is attached.

From 0a5478a83129efa07fc366c01f793c809a42ce99 Mon Sep 17 00:00:00 2001
Message-Id: <[email-masked]>
From: Arne Babenhauserheide <[email-masked]>
Date: Sat, 20 May 2023 23:45:43 +0200
Subject: [PATCH] gnu: htmlcxx: add --std=c++11 to configure flags.

* gnu/packages/web.scm (htmlcxx): add CXXFLAGS to configure-flag. C++17
  removed dynamic exception specifications.
---
 gnu/packages/web.scm | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/gnu/packages/web.scm b/gnu/packages/web.scm
index fe52f673e2..aa9d23f19c 100644
--- a/gnu/packages/web.scm
+++ b/gnu/packages/web.scm
@@ -8248,6 +8248,9 @@ (define-public htmlcxx
        (sha256
         (base32 "1j3mzjlczjrk4ahc43s6kzpvzypzjmqz4sillnca5yadrwwgjf2x"))))
     (build-system gnu-build-system)
+    (arguments
+     ;; ISO C++17 does not allow dynamic exception specifications
+     `(#:configure-flags '("CXXFLAGS=-std=c++11")))
     (home-page "https://htmlcxx.sourceforge.net/")
     (synopsis "Simple non-validating CSS1 and HTML parser for C++")
     (description "htmlcxx is a simple non-validating CSS1 and HTML parser for

base-commit: bd7b795aeb9d35ac7b825ad4d0cf0088f18e1167
-- 
2.40.1

Best wishes,
Arne
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heißt politisch sein,
ohne es zu merken.
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