On Thu, Feb 7, 2013 at 12:44 PM, Christian J. Robinson
<hept...@gmail.com> wrote:
>
> I think one of the patches since 804 has broken something, because I
> can't get a working gvim with Perl using Make_ming.mak--it fails
> during linking:
>
> gobji386/buffer.o:buffer.c:(.text+0x10aa): undefined reference to
> `_perl_buf_free'
[...]
> collect2: ld returned 1 exit status
> Make_ming.mak:683: recipe for target `gvim.exe' failed
> make: *** [gvim.exe] Error 1
I have determined that this error was because if_perl.c was zero
length. I removed it and tried again, which produced these errors:
perl /cygdrive/c/strawberry/perl/lib/ExtUtils/xsubpp -prototypes -typemap \
/cygdrive/c/strawberry/perl/lib/ExtUtils/typemap if_perl.xs > if_perl.c
Can't find /cygdrive/c/strawberry/perl/lib/ExtUtils/typemap in
/home/Heptite/src/vim/src
Make_ming.mak:757: recipe for target `if_perl.c' failed
This led me to realizing that the rule for generating if_perl.c is
broken when trying to build with Cygwin's mingw installation. The
problem is that it leaves behind a zero length if_perl.c which is then
assumed to be valid on later attempts to build, which is why I was
getting the errors I originally posted.
I had to change the if_perl.c rule in Make_ming.mak to the following
to get a clean build:
if_perl.c: if_perl.xs typemap
$(XSUBPP) -prototypes -typemap \
`cygpath -w $(PERLLIB)/ExtUtils/typemap` if_perl.xs > $@
As you can see, cygwin likes Unix paths, but this is calling a native
Windows Perl installation's xsubpp, which expects a native Windows
pathname to typemap, so it has to be converted.
This is not an optimal solution; I think there needs to be some kind
of logic to allow people using Cygwin's mingw plus a native Windows
Perl installation.
I also had to tweak GvimExt/Make_ming.mak to change CXX from
$(CROSS_COMPILE)g++-3 to $(CROSS_COMPILE)g++, in case anybody else
is having troulble getting GvimExt to compile with a build environment
similar to mine.
- Christian
--
Christian J. Robinson <hept...@gmail.com>
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