Re: [PATCH 07/12] Git.pm: Better error handling

Petr Baudis [off-list ref] writes:

+int
+error_xs(const char *err, va_list params)
+{

You said in git-compat-util.h that set_error_routine takes a
function that returns void, so this gives unnecessary type
clash.

--------------------------------
In file included from /usr/lib/perl/5.8/CORE/perl.h:756,
                 from Git.xs:15:
/usr/lib/perl/5.8/CORE/embed.h:4193:1: warning: "die" redefined
Git.xs:11:1: warning: this is the location of the previous definition
Git.xs: In function 'boot_Git':
Git.xs:57: warning: passing argument 1 of 'set_error_routine' from incompatible pointer type
Git.xs:58: warning: passing argument 1 of 'set_die_routine' makes qualified function pointer from unqualified
--------------------------------

Other troubles I saw with the v4 series while compiling:

--------------------------------
usage.c:35: warning: initialization makes qualified function pointer from unqualified
usage.c:36: warning: initialization makes qualified function pointer from unqualified

I'd fix it with this

diff --git a/usage.c b/usage.c
index b781b00..52c2e96 100644
--- a/usage.c
+++ b/usage.c

@@ -12,19 +12,19 @@ static void report(const char *prefix, c
 	fputs("\n", stderr);
 }
 
-void usage_builtin(const char *err)
+static NORETURN void usage_builtin(const char *err)
 {
 	fprintf(stderr, "usage: %s\n", err);
 	exit(129);
 }
 
-void die_builtin(const char *err, va_list params)
+static NORETURN void die_builtin(const char *err, va_list params)
 {
 	report("fatal: ", err, params);
 	exit(128);
 }
 
-void error_builtin(const char *err, va_list params)
+static void error_builtin(const char *err, va_list params)
 {
 	report("error: ", err, params);
 }

--------------------------------

(cd perl && /usr/bin/perl Makefile.PL \
                PREFIX="/home/junio/git-test" \
                DEFINE="-O2 -Wall -Wdeclaration-after-statement
                -g -DSHA1_HEADER='<openssl/sha.h>'
                -DGIT_VERSION=\\\"1.4.1.rc1.gab0df\\\"" \
                LIBS="libgit.a xdiff/lib.a -lz  -lcrypto")
Unrecognized argument in LIBS ignored: 'libgit.a'
Unrecognized argument in LIBS ignored: 'xdiff/lib.a'

Do you need to pass LIBS, and if so maybe this is not a way
Makefile.PL expects it to be passed perhaps?

--------------------------------
Makefile out-of-date with respect to Makefile.PL
Cleaning current config before rebuilding Makefile...
make -f Makefile.old clean > /dev/null 2>&1
/usr/bin/perl Makefile.PL "PREFIX=/home/junio/git-test" "DEFINE=-O2 -Wall -Wdeclaration-after-statement -g -DSHA1_HEADER='<openssl/sha.h>'  -DGIT_VERSION=\"1.4.1.rc1.gab0df\"" "LIBS=libgit.a xdiff/lib.a -lz  -lcrypto"
Unrecognized argument in LIBS ignored: 'libgit.a'
Unrecognized argument in LIBS ignored: 'xdiff/lib.a'
Writing Makefile for Git
==> Your Makefile has been rebuilt. <==
==> Please rerun the make command.  <==
false
make[1]: *** [Makefile] Error 1
--------------------------------

The latter is what Perl's build mechanism does so it is not
strictly your fault, but it nevertheless is irritating that we
have to say make clean twice.