Hi Akim,
I am forwarding a bug report that the libexplain and the fhist Debian
packages fail to build with Bison 3.6.1.
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=960608
https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/libexplain.html
I have also attached the build log with this email. Can you look into
this issue and see if it is a bug in Bison? Thanks!
Here is the explanation from Andreas Beckmann, who reported the bug:
At least two packages FTBFS with the latest bison with some yyerror related
error message. I had a short look into the libexplain failure and found the
following:
In libexplain/acl_grammar.yacc.c (generated from libexplain/acl_grammar.y),
these bits are new in 3.6.1 (they were not generated by 3.5.3):
...
enum acl_grammar_tokentype
{
acl_grammar_EMPTY = -2,
acl_grammar_EOF = 0, /* "end of file" */
acl_grammar_error = 256, /* error */
acl_grammar_UNDEF = 257, /* "invalid token" */
...
};
...
#define acl_grammar_EOF 0
#define acl_grammar_error 256
#define acl_grammar_UNDEF 257
...
and acl_grammar_error clashes with the existing (generated by 3.6.1 and
3.5.3, in acl_grammar.y this is yyerror())
...
static void
acl_grammar_error(const char *text)
{
...
}
which causes this error during compilation:
y.tab.c:152:27: error: expected identifier or '(' before numeric constant
libexplain/acl_grammar.y:128:1: note: in expansion of macro 'acl_grammar_error'
128 | yyerror(const char *text)
| ^
libexplain/acl_grammar.y: In function 'acl_grammar_errorf':
y.tab.c:152:27: error: called object is not a function or function pointer
libexplain/acl_grammar.y:155:5: note: in expansion of macro 'acl_grammar_error'
155 | yyerror(buf);
| ^
libexplain/acl_grammar.y: In function 'acl_grammar_parse':
y.tab.c:152:27: error: called object is not a function or function pointer
libexplain/acl_grammar.y:470:13: note: in expansion of macro 'acl_grammar_error'
470 | yyerror
| ^~~
y.tab.c:152:27: error: called object is not a function or function pointer
y.tab.c:1720:7: note: in expansion of macro 'acl_grammar_error'
y.tab.c:152:27: error: called object is not a function or function pointer
y.tab.c:1831:3: note: in expansion of macro 'acl_grammar_error'
At top level:
libexplain/acl_grammar.y:105:1: warning: 'result_append' defined but
not used [-Wunused-function]
105 | result_append(const char *text)
| ^
This does not look like it is an error in libexplain.
Mon May 11 13:28:49 UTC 2020 I: starting to build libexplain/unstable/amd64 on
jenkins on '2020-05-11 13:28'
Mon May 11 13:28:49 UTC 2020 I: The jenkins build log is/was available at
https://jenkins.debian.net/userContent/reproducible/debian/build_service/amd64_14/12752/console.log
Mon May 11 13:28:49 UTC 2020 I: Downloading source for
unstable/libexplain=1.4.D001-9
--2020-05-11 13:28:50--
http://deb.debian.org/debian/pool/main/libe/libexplain/libexplain_1.4.D001-9.dsc
Connecting to 78.137.99.97:3128... connected.
Proxy request sent, awaiting response... 200 OK
Length: 2184 (2.1K)
Saving to: ‘libexplain_1.4.D001-9.dsc’
0K ..100% 190M=0s
2020-05-11 13:28:50 (190 MB/s) - ‘libexplain_1.4.D001-9.dsc’ saved [2184/2184]
Mon May 11 13:28:50 UTC 2020 I: libexplain_1.4.D001-9.dsc
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA512
Format: 3.0 (quilt)
Source: libexplain
Binary: explain, libexplain-doc, libexplain51, libexplain-dev
Architecture: any all
Version: 1.4.D001-9
Maintainer: Debian QA Group
Homepage: http://libexplain.sourceforge.net/
Standards-Version: 4.4.0
Vcs-Browser: https://salsa.debian.org/debian/libexplain
Vcs-Git: https://salsa.debian.org/debian/libexplain.git
Build-Depends: bison, debhelper-compat (= 12), ghostscript, groff, libacl1-dev,
libcap-dev [linux-any], libtool-bin, linux-libc-dev [linux-any], lsof
[linux-any], netbase
Package-List:
explain deb devel optional arch=any
libexplain-dev deb libdevel optional arch=any
libexplain-doc deb doc optional arch=all
libexplain51 deb libs optional arch=any
Checksums-Sha1:
e191e1e7f066f8cefca8d05c846c3a38931d8410 4770006
libexplain_1.4.D001.orig.tar.gz
051e4be36c618b454657db790a7a7920704ee513 43992
libexplain_1.4.D001-9.debian.tar.xz
Checksums-Sha256:
28863b65eccc74934e237cac41364cb3c1802c36c9e2318ed0417460fee83f80 4770006
libexplain_1.4.D001.orig.tar.gz
4ac59e45f82811b8fd0cf519149d224467f25ea212f161a5ac004241f502d543 43992
libexplain_1.4.D001-9.debian.tar.xz
Files:
8fabd3de196bde3ca941cd27c029ff8b 4770006 libexplain_1.4.D001.orig.tar.gz
078b819d14486f28ebab03884dc6b658 43992 libexplain_1.4.D001-9.debian.tar.xz
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