Re: texinfo-6.3.90 pretest

[Hans-Bernhard Bröker]

Am 29.04.2017 um 09:14 schrieb Eli Zaretskii:

> > The crucial output appears on the terminal only, with nothing useful in
> > config.log.

> There are 2 config.log files, one in the top-level directory, the
> other somewhere under tp/ (I forgot the actual directory, and don't
> have my build system accessible where I'm typing this).  Did you
> check in both?

Not at first, but I repeated the exercise now. The only lines mentioning 
Perl extension module building are in the top-level config.log:

configure:25092: checking whether we can build Perl extension (XS) modules
configure:25094: result:
configure:25105: checking whether we can build Perl extension (XS) modules
configure:25107: result: no

The output I attached yesterday was created between those pairs of log 
file lines, those in turn generated from line 388 to 402 of the 
top-level configure.ac.

> I don't use MinGW64 Perl, I use ActiveState Perl, which doesn't have
> that problem. 
[...]
> The problem in my case is that the extension somehow fails to load, as
> witnessed by this error message I cited in my message:
>
>       no fallback module for TestXS at ../../../Texinfo/XSLoader.pm line 241.
>       BEGIN failed--compilation aborted at 
> ../../../Texinfo/Convert/XSParagraph/TestXS.pm line 31.
>       Compilation failed in require at 
> ../../../Texinfo/Convert/XSParagraph/fail.pl line 1.
>       checking whether we can build Perl extension (XS) modules... no
>
> These are Perl errors, not compiler errors.

I re-tried with MSys2, MinGW64 and ActiveState Perl instead.  Again, no 
problem like the above:

libtool: link: C:/msys64/mingw64/bin/gcc.exe -shared 
.libs/TestXS_la-TestXS.o   -LC:/Perl64/lib/CORE -lperl524  -O2 
-mms-bitfields   -o .libs/TestXS.dll -Wl,--enable-auto-image-base 
-Xlinker --out-implib -Xlinker .libs/TestXS.dll.a
libtool: link: ar cru .libs/TestXS.a  TestXS_la-TestXS.o
libtool: link: ranlib .libs/TestXS.a
libtool: link: ( cd ".libs" && rm -f "TestXS.la" && cp -pR 
"../TestXS.la" "TestXS.la" )
message from XS module
checking whether we can build Perl extension (XS) modules... yes

> My guess would be that the configure script tried to load the TestXS
> extension into the Perl that is found along PATH, not into the Perl
> specified via the PERL= setting with which the configure script was
> invoked.  

The 'configure.ac' snippet doesn't look like that might be the problem. 
It does invoke $(PERL), not 'perl'.

> But that's just a guess, and I'm now even less sure it's correct,
> because you say you've succeeded building with the C extensions.

I didn't say the build itself went well --- only the configure did.

The build itself fails because of the conflict between xspara.c and 
gnulib headers:

make[5]: Entering directory 
'/home/hbbro/prgbld/w64/txisvn_ASPerl/tp/Texinfo/Convert/XSParagraph'
/bin/sh ./libtool  --tag=CC   --mode=compile 
C:/msys64/mingw64/bin/gcc.exe -DHAVE_CONFIG_H -I. 
-I/c/prg/gnu/texinfo/svn/tp/Texinfo/Convert/XSParagraph 
-I/c/prg/gnu/texinfo/svn/tp/Texinfo/Convert/XSParagraph 
-I/c/prg/gnu/texinfo/svn/tp/Texinfo/Convert/XSParagraph/lib -I./lib  -s 
-O2 -DWIN32 -DWIN64 -DCONSERVATIVE -DPERL_TEXTMODE_SCRIPTS 
-DUSE_SITECUSTOMIZE -DPERL_IMPLICIT_CONTEXT -DPERL_IMPLICIT_SYS -fwrapv 
-fno-strict-aliasing -mms-bitfields -DVERSION=\"0\" -DXS_VERSION=\"1\" 
"-IC:/Perl64/lib/CORE"  -MT XSParagraph_la-xspara.lo -MD -MP -MF 
.deps/XSParagraph_la-xspara.Tpo -c -o XSParagraph_la-xspara.lo `test -f 
'xspara.c' || echo 
'/c/prg/gnu/texinfo/svn/tp/Texinfo/Convert/XSParagraph/'`xspara.c
libtool: compile:  C:/msys64/mingw64/bin/gcc.exe -DHAVE_CONFIG_H -I. 
-I/c/prg/gnu/texinfo/svn/tp/Texinfo/Convert/XSParagraph 
-I/c/prg/gnu/texinfo/svn/tp/Texinfo/Convert/XSParagraph 
-I/c/prg/gnu/texinfo/svn/tp/Texinfo/Convert/XSParagraph/lib -I./lib -s 
-O2 -DWIN32 -DWIN64 -DCONSERVATIVE -DPERL_TEXTMODE_SCRIPTS 
-DUSE_SITECUSTOMIZE -DPERL_IMPLICIT_CONTEXT -DPERL_IMPLICIT_SYS -fwrapv 
-fno-strict-aliasing -mms-bitfields -DVERSION=\"0\" -DXS_VERSION=\"1\" 
-IC:/Perl64/lib/CORE -MT XSParagraph_la-xspara.lo -MD -MP -MF 
.deps/XSParagraph_la-xspara.Tpo -c 
/c/prg/gnu/texinfo/svn/tp/Texinfo/Convert/XSParagraph/xspara.c 
-DDLL_EXPORT -DPIC -o .libs/XSParagraph_la-xspara.o
In file included from C:/Perl64/lib/CORE/perl.h:718:0,
                 from 
C:/prg/gnu/texinfo/svn/tp/Texinfo/Convert/XSParagraph/xspara.c:34:
C:/prg/gnu/texinfo/svn/tp/Texinfo/Convert/XSParagraph/xspara.c:174:1: 
error: expected declaration specifiers or '...' before numeric constant
 iswspace (wint_t wc)
 ^
C:/prg/gnu/texinfo/svn/tp/Texinfo/Convert/XSParagraph/xspara.c:201:1: 
error: expected declaration specifiers or '...' before numeric constant
 iswupper (wint_t wc)
 ^
make[5]: *** [Makefile:967: XSParagraph_la-xspara.lo] Error 1

And another problem further down, in MiscXS:

make[4]: Entering directory 
'/home/hbbro/prgbld/w64/txisvn_ASPerl/tp/Texinfo/MiscXS'
/bin/sh ./libtool  --tag=CC   --mode=compile 
C:/msys64/mingw64/bin/gcc.exe -DHAVE_CONFIG_H -I. 
-I/c/prg/gnu/texinfo/svn/tp/Texinfo/MiscXS    -s -O2 -DWIN32 -DWIN64 
-DCONSERVATIVE -DPERL_TEXTMODE_SCRIPTS -DUSE_SITECUSTOMIZE 
-DPERL_IMPLICIT_CONTEXT -DPERL_IMPLICIT_SYS -fwrapv -fno-strict-aliasing 
-mms-bitfields -DVERSION=\"0\" -DXS_VERSION=\"0\" "-IC:/Perl64/lib/CORE" 
 -MT MiscXS_la-misc.lo -MD -MP -MF .deps/MiscXS_la-misc.Tpo -c -o 
MiscXS_la-misc.lo `test -f 'misc.c' || echo 
'/c/prg/gnu/texinfo/svn/tp/Texinfo/MiscXS/'`misc.c
libtool: compile:  C:/msys64/mingw64/bin/gcc.exe -DHAVE_CONFIG_H -I. 
-I/c/prg/gnu/texinfo/svn/tp/Texinfo/MiscXS -s -O2 -DWIN32 -DWIN64 
-DCONSERVATIVE -DPERL_TEXTMODE_SCRIPTS -DUSE_SITECUSTOMIZE 
-DPERL_IMPLICIT_CONTEXT -DPERL_IMPLICIT_SYS -fwrapv -fno-strict-aliasing 
-mms-bitfields -DVERSION=\"0\" -DXS_VERSION=\"0\" -IC:/Perl64/lib/CORE 
-MT MiscXS_la-misc.lo -MD -MP -MF .deps/MiscXS_la-misc.Tpo -c 
/c/prg/gnu/texinfo/svn/tp/Texinfo/MiscXS/misc.c  -DDLL_EXPORT -DPIC -o 
.libs/MiscXS_la-misc.o
In file included from C:/prg/gnu/texinfo/svn/tp/Texinfo/MiscXS/misc.c:34:0:
C:/prg/gnu/texinfo/svn/tp/Texinfo/MiscXS/misc.c: In function 
'xs_unicode_text':
C:/Perl64/lib/CORE/perl.h:166:16: error: 'my_perl' undeclared (first use 
in this function)
 #  define aTHX my_perl
                ^
C:/Perl64/lib/CORE/embedvar.h:38:18: note: in expansion of macro 'aTHX'
 #    define vTHX aTHX
                  ^~~~
C:/Perl64/lib/CORE/embedvar.h:62:19: note: in expansion of macro 'vTHX'
 #define PL_Mem   (vTHX->IMem)
                   ^~~~
C:/Perl64/lib/CORE/iperlsys.h:813:4: note: in expansion of macro 'PL_Mem'
  (*PL_Mem->pMalloc)(PL_Mem, (size))
    ^~~~~~
C:/Perl64/lib/CORE/XSUB.h:628:21: note: in expansion of macro 
'PerlMem_malloc'
 #    define malloc  PerlMem_malloc
                     ^~~~~~~~~~~~~~
C:/prg/gnu/texinfo/svn/tp/Texinfo/MiscXS/misc.c:468:9: note: in 
expansion of macro 'malloc'
   new = malloc (new_space + 1);
         ^


Oh, and BTW: 'info.exe' fails to build because some of the dummy 
functions in pcterm.c::1685 ff. have the wrong prototypes:

In file included from C:/prg/gnu/texinfo/svn/info/terminal.c:1299:0:
C:/prg/gnu/texinfo/svn/info/pcterm.c:1685:11: error: conflicting types 
for 'tputs'
 int       tputs (const char *a, int b, int (*c)(int))
           ^~~~~
In file included from C:/prg/gnu/texinfo/svn/info/terminal.c:40:0:
C:/msys64/mingw64/include/termcap.h:31:13: note: previous declaration of 
'tputs' was here
 extern void tputs (const char *string, int nlines, int (*outfun) (int));
             ^~~~~

and once those are fixed, they collide with actual ncurses functions at 
link time:

C:/msys64/mingw64/lib/libncurses.a(lib_termcap.o):(.text+0x870): 
multiple definition of `tgetent'
terminal.o:C:/prg/gnu/texinfo/svn/info/pcterm.c:1711: first defined here
C:/msys64/mingw64/lib/libncurses.a(lib_termcap.o):(.text+0x9a0): 
multiple definition of `tgetflag'
terminal.o:C:/prg/gnu/texinfo/svn/info/pcterm.c:1701: first defined here
C:/msys64/mingw64/lib/libncurses.a(lib_termcap.o):(.text+0xad0): 
multiple definition of `tgetnum'
terminal.o:C:/prg/gnu/texinfo/svn/info/pcterm.c:1696: first defined here
C:/msys64/mingw64/lib/libncurses.a(lib_termcap.o):(.text+0xcf0): 
multiple definition of `tgetstr'
terminal.o:C:/prg/gnu/texinfo/svn/info/pcterm.c:1706: first defined here
C:/msys64/mingw64/lib/libncurses.a(lib_tputs.o):(.text+0x7e0): multiple 
definition of `tputs'
terminal.o:C:/prg/gnu/texinfo/svn/info/pcterm.c:1687: first defined here

I had to #ifndef HAVE_NCURSES_TERMCAP_H the lot to get info to build...