NetBSD Problem Report #55977

From www@netbsd.org  Fri Feb  5 07:19:51 2021
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Date: Fri,  5 Feb 2021 07:19:49 +0000 (UTC)
From: aza.sea.agenda@gmail.com
Reply-To: aza.sea.agenda@gmail.com
To: gnats-bugs@NetBSD.org
Subject: net/libcmis fails to build
X-Send-Pr-Version: www-1.0

>Number:         55977
>Category:       pkg
>Synopsis:       net/libcmis fails to build
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Feb 05 07:20:01 +0000 2021
>Originator:     Aleksey Arens
>Release:        pkgsrc-trunk
>Organization:
>Environment:
NetBSD HOSTNAME_REDACTED 9.99.79 NetBSD 9.99.79 (GENERIC.STAGING.02) #4: Tue Feb  2 22:19:57 UTC 2021  root@HOSTNAME_REDACTED:/usr/obj/sys/arch/amd64/compile/GENERIC amd64

>Description:
A following error occurs when an attempt to build net/libcmis is made.

---8<---

/usr/include/g++/type_traits:68:3: error: templates must have C++ linkage
  template<typename _Tp, _Tp __v>
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../inc/libcmis-c/repository.h:32:1: note: extern "C" language linkage specification begins here
extern "C" {               
^                                                                                                                                                                                              
In file included from repository.cxx:29:                                                       
In file included from ../../inc/libcmis-c/repository.h:35:
In file included from /usr/obj/pkgsrc/net/libcmis/work/.buildlink/include/libxml2/libxml/tree.h:1307:
In file included from /usr/obj/pkgsrc/net/libcmis/work/.buildlink/include/libxml2/libxml/xmlmemory.h:218:
In file included from /usr/obj/pkgsrc/net/libcmis/work/.buildlink/include/libxml2/libxml/threads.h:35:
In file included from /usr/obj/pkgsrc/net/libcmis/work/.buildlink/include/libxml2/libxml/globals.h:18:
In file included from /usr/obj/pkgsrc/net/libcmis/work/.buildlink/include/libxml2/libxml/parser.h:810:
In file included from /usr/obj/pkgsrc/net/libcmis/work/.buildlink/include/libxml2/libxml/encoding.h:31:
In file included from /usr/obj/pkgsrc/net/libcmis/work/.buildlink/include/unicode/ucnv.h:53:
In file included from /usr/obj/pkgsrc/net/libcmis/work/.buildlink/include/unicode/uenum.h:25:
In file included from /usr/obj/pkgsrc/net/libcmis/work/.buildlink/include/unicode/localpointer.h:45:
In file included from /usr/include/g++/memory:62:                                          
In file included from /usr/include/g++/bits/stl_algobase.h:64:
In file included from /usr/include/g++/bits/stl_pair.h:59:                                
In file included from /usr/include/g++/bits/move.h:54:                           
/usr/include/g++/type_traits:84:19: error: no template named 'integral_constant'
    constexpr _Tp integral_constant<_Tp, __v>::value;                           
                  ^                                                                            
/usr/include/g++/type_traits:87:11: error: no template named 'integral_constant'
  typedef integral_constant<bool, true>     true_type;                           
          ^          
/usr/include/g++/type_traits:90:11: error: no template named 'integral_constant'         
  typedef integral_constant<bool, false>    false_type;
          ^                                                                                    
/usr/include/g++/type_traits:93:29: error: no template named 'integral_constant'
    using __bool_constant = integral_constant<bool, __v>;                                  
                            ^            
/usr/include/g++/type_traits:103:3: error: templates must have C++ linkage
  template<bool, typename, typename>  
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../inc/libcmis-c/repository.h:32:1: note: extern "C" language linkage specification begins here
extern "C" {                                                                                   
^                       
fatal error: too many errors emitted, stopping now [-ferror-limit=]

---8<---

NOTE: The userland is unaltered, and comes from 9.1_STABLE.  Only kernel is from -current.

>How-To-Repeat:
cd /usr/pkgsrc/net/libcmis && make

>Fix:
A cursory examination suggests that a header resides in the extern C scope, whereas it
should not.  A natural solution is to move header outside of the extern C scope as
follows.  With the following patch, a clean compilation obtains.

---8<---

diff --git a/net/libcmis/distinfo b/net/libcmis/distinfo
index 3d3d961e6f7..2a2bd92f6d6 100644
--- a/net/libcmis/distinfo
+++ b/net/libcmis/distinfo
@@ -4,3 +4,4 @@ SHA1 (libcmis-0.5.2.tar.gz) = 26e64cdd9028fa39e76fe7c2cc739ade8a91535f
 RMD160 (libcmis-0.5.2.tar.gz) = 647500ebcda8693af90ac92b9a193e41b5e695bc
 SHA512 (libcmis-0.5.2.tar.gz) = 3dac0eed31d1dd3ac4670e501e0677196811f7875e6d1c253c8d874d6903691cbe4f1c27c8468af07bfd7f79b0d6ec4f933b28cb3bb37dcbea18bc2dd8f6e374
 Size (libcmis-0.5.2.tar.gz) = 808619 bytes
+SHA1 (patch-inc_libcmis-c_repository.h) = 984c637ca22851c92b545c1e4fd17669b3eff816
diff --git a/net/libcmis/patches/patch-inc_libcmis-c_repository.h b/net/libcmis/patches/patch-inc_libcmis-c_repository.h
new file mode 100644
index 00000000000..040c78ef785
--- /dev/null
+++ b/net/libcmis/patches/patch-inc_libcmis-c_repository.h
@@ -0,0 +1,16 @@
+$NetBSD$
+
+--- inc/libcmis-c/repository.h.orig	2021-02-05 06:57:05.353182875 +0000
++++ inc/libcmis-c/repository.h
+@@ -29,10 +29,10 @@
+ #define _REPOSITORY_H_
+
+ #ifdef __cplusplus
++#include <libxml/tree.h>
+ extern "C" {
+ #endif
+
+-#include <libxml/tree.h>
+
+ #include "libcmis-c/libcmis-c-api.h"
+ #include "libcmis-c/types.h"

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