Petr Baudis [off-list ref] writes:
quoted
Eek. It does not compile for me -- maybe there is more
dependencies that need to be listed in INSTALL file?
...
Git.xs: In function 'XS_Git_xs_hash_object':
Git.xs:27: warning: ISO C90 forbids mixed declarations and code
Git.xs:44: warning: passing argument 1 of 'Perl_io_close' from incompatible pointer type
Git.xs:44: warning: passing argument 2 of 'Perl_io_close' makes pointer from integer without a cast
Git.xs:44: error: too few arguments to function 'Perl_io_close'
Oops, sorry. Apparently, I've digged too deep and unleashed a monster of
unstable API. Now I've finally discovered perlapio(1) and know I
should've just called PerlIO_close(). Below comes a fixed patch, I
didn't bother to bump the version number.
Thanks; it compiles now with a few more glitches.
/usr/bin/perl /usr/share/perl/5.8/ExtUtils/xsubpp \
-typemap /usr/share/perl/5.8/ExtUtils/typemap Git.xs > Git.xsc && \
mv Git.xsc Git.c
Please specify prototyping behavior for Git.xs (see perlxs manual)
Says xsubpp.
cc -c -I. -I.. -D_REENTRANT -D_GNU_SOURCE -DTHREADS_HAVE_PIDS \
-DDEBIAN -fno-strict-aliasing -pipe -I/usr/local/include \
-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -O2 \
-DVERSION=\"0.01\" -DXS_VERSION=\"0.01\" -fPIC \
"-I/usr/lib/perl/5.8/CORE" -Wall
-Wdeclaration-after-statement \
-g -DSHA1_HEADER='<openssl/sha.h>' \
-DGIT_VERSION=\"1.4.1.rc1.g01a1\" Git.c
Git.xs: In function 'XS_Git_xs__execv_git_cmd':
Git.xs:57: warning: passing argument 1 of 'free' discards qualifiers from pointer target type
Git.xs: In function 'XS_Git_xs_hash_object':
Git.xs:65: warning: ISO C90 forbids mixed declarations and code
I usually compile with -Wdeclaration-after-statement so I
probably get some more warnings than you saw; it probably is
primarily xsubpp's fault, but you could work it around by having
CODE block to be inside an extra set of braces {}. Constness
reduction of free() is a bit annoying from the point of view of
the coder who has to cast away constness, so I won't be too
strict about that, but it would be nicer if we did not have to
see the warnings.
rm -f blib/arch/auto/Git/Git.so
cc -shared -L/usr/local/lib Git.o -o blib/arch/auto/Git/Git.so ../libgit.a \
-lz -lcrypto \
/usr/bin/ld: ../libgit.a(exec_cmd.o): relocation R_X86_64_32 against `a local symbol' can not be used when making a shared object; recompile with -fPIC
../libgit.a: could not read symbols: Bad value
collect2: ld returned 1 exit status
make[1]: *** [blib/arch/auto/Git/Git.so] Error 1
This is a real killer. If we compile everything with -fPIC,
this goes away, but I do not think we want -fPIC for the core
level tools. At least not until we are ready to do libgit.so.
Dear diary, on Fri, Jun 23, 2006 at 02:22:41AM CEST, I got a letter
where Junio C Hamano [off-list ref] said that...
Petr Baudis [off-list ref] writes:
quoted
quoted
Eek. It does not compile for me -- maybe there is more
dependencies that need to be listed in INSTALL file?
...
Git.xs: In function 'XS_Git_xs_hash_object':
Git.xs:27: warning: ISO C90 forbids mixed declarations and code
Git.xs:44: warning: passing argument 1 of 'Perl_io_close' from incompatible pointer type
Git.xs:44: warning: passing argument 2 of 'Perl_io_close' makes pointer from integer without a cast
Git.xs:44: error: too few arguments to function 'Perl_io_close'
Oops, sorry. Apparently, I've digged too deep and unleashed a monster of
unstable API. Now I've finally discovered perlapio(1) and know I
should've just called PerlIO_close(). Below comes a fixed patch, I
didn't bother to bump the version number.
Thanks; it compiles now with a few more glitches.
/usr/bin/perl /usr/share/perl/5.8/ExtUtils/xsubpp \
-typemap /usr/share/perl/5.8/ExtUtils/typemap Git.xs > Git.xsc && \
mv Git.xsc Git.c
Please specify prototyping behavior for Git.xs (see perlxs manual)
Says xsubpp.
It's harmless but can be fixed by:
diff --git a/perl/Git.xs b/perl/Git.xs
index 3799ee9..8ab84bb 100644
--- a/perl/Git.xs
+++ b/perl/Git.xs
@@ -17,6 +17,8 @@ #include "ppport.h"
MODULE = Git PACKAGE = Git
+PROTOTYPES: DISABLE
+
# /* TODO: xs_call_gate(). See Git.pm. */
char *
cc -c -I. -I.. -D_REENTRANT -D_GNU_SOURCE -DTHREADS_HAVE_PIDS \
-DDEBIAN -fno-strict-aliasing -pipe -I/usr/local/include \
-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -O2 \
-DVERSION=\"0.01\" -DXS_VERSION=\"0.01\" -fPIC \
"-I/usr/lib/perl/5.8/CORE" -Wall
-Wdeclaration-after-statement \
-g -DSHA1_HEADER='<openssl/sha.h>' \
-DGIT_VERSION=\"1.4.1.rc1.g01a1\" Git.c
Git.xs: In function 'XS_Git_xs__execv_git_cmd':
Git.xs:57: warning: passing argument 1 of 'free' discards qualifiers from pointer target type
Git.xs: In function 'XS_Git_xs_hash_object':
Git.xs:65: warning: ISO C90 forbids mixed declarations and code
I usually compile with -Wdeclaration-after-statement so I
probably get some more warnings than you saw; it probably is
primarily xsubpp's fault, but you could work it around by having
CODE block to be inside an extra set of braces {}.
Sure. Should I resend all the .xs-related patches with the code blocks
in {}, or will you add it at your side?
Constness reduction of free() is a bit annoying from the point of view of
the coder who has to cast away constness, so I won't be too
strict about that, but it would be nicer if we did not have to
see the warnings.
Sure, it should be trivial to fix.
rm -f blib/arch/auto/Git/Git.so
cc -shared -L/usr/local/lib Git.o -o blib/arch/auto/Git/Git.so ../libgit.a \
-lz -lcrypto \
/usr/bin/ld: ../libgit.a(exec_cmd.o): relocation R_X86_64_32 against `a local symbol' can not be used when making a shared object; recompile with -fPIC
../libgit.a: could not read symbols: Bad value
collect2: ld returned 1 exit status
make[1]: *** [blib/arch/auto/Git/Git.so] Error 1
This is a real killer. If we compile everything with -fPIC,
this goes away, but I do not think we want -fPIC for the core
level tools. At least not until we are ready to do libgit.so.
Hmm, I didn't get that; I guess that's x86-64 specific. :/ Do you have
any idea what the error actually means? Could the environ be a problem?
(Why aren't we calling just execv()?)
Also, is there any real problem with just using -fPIC?
--
Petr "Pasky" Baudis
Stuff: http://pasky.or.cz/
A person is just about as big as the things that make them angry.