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( [id://3333]=superdoc: print w/replies, xml ) Need Help??
Has anyone got the perl bindings to XPCOM to work recently?

Background: XULRunner can now run XUL applications independently of Firefox, meaning that XUL can be used as a toolkit for widgets. I have toyed with XUL and liked it - it does what I want. The java bindings allow actions triggered by the XUL widgets to use java for scripting. It would seem a perl binding would allow the same for perl, eg., mouseover on a button would call a perl sub.

In an article on XULRunner, Axel Hect said it would run with any language that had XPCOM bindings, including perl. However, the plXPCOM project is now listed as inactive. So where can I go for help, if not here? Python's bindings exist (pyXPCOM) and apparently work, but I dont want to learn python to use XUL.

I have looked at other modules: XUL node, WxPerl, Perl-Tk, Gtk2 bindings. They all fail in some way (here's not the place to say why).

Problem: I cant get plXPCOM to compile with XULRunner on ubuntu linux with perl 5.8.8. Can anyone help? Various output is given below. Thanks in advance. 

Trying to compile plXPCOM (taken from CVS repository) with xulrunner
My .mozconfig is
<start>
# This file specifies the build flags for XULRunner.
. $topsrcdir/xulrunner/config/mozconfig
mk_add_options MOZ_OBJDIR=@TOPSRCDIR@/obj-@CONFIG_GUESS@
ac_add_options --enable-extensions=default,perl
ac_add_options --disable-javaxpcom
<end>
The "disable java" option was because I was getting no jvi.h although 
+Sun's JRE is installed.

I run linux/ubuntu edgy.

From gcc -v:
Target: i486-linux-gnu
Configured with: ../src/configure -v --enable-languages=c,c++,fortran,
+objc,obj-c++,treelang --prefix=/usr --enable-shared --with-system-zli
+b --libexecdir=/usr/lib --without-included-gettext --enable-threads=p
+osix --enable-nls --program-suffix=-4.1 --enable-__cxa_atexit --enabl
+e-clocale=gnu --enable-libstdcxx-debug --enable-mpfr --enable-checkin
+g=release i486-linux-gnu
Thread model: posix
gcc version 4.1.2 20060928 (prerelease) (Ubuntu 4.1.1-13ubuntu5)

Mozilla source is from:
xulrunner-1.8.0.4-source.tar.bz2

Perl:
v5.8.8 built for i486-linux-gnu-thread-multi

The make ended with:

/usr/bin/perl /usr/share/perl/5.8/ExtUtils/xsubpp  -typemap /usr/share
+/perl/5.8/ExtUtils/typemap -typemap typemap  Components.xs > Componen
+ts.xsc && mv Components.xsc Components.c
Please specify prototyping behavior for Components.xs (see perlxs manu
+al)
c++ -c   -I../../../dist/include/system_wrappers -include ../../../con
+fig/gcc_hidden.h -DOSTYPE=\"Linux2.6\" -DOSARCH=\"Linux\" -DBUILD_ID=
+0000000000  -I../../../dist/include/xpcom -I../../../dist/include/str
+ing -I../../../dist/include/perlxpcom -I../../../dist/include -I../..
+/../dist/include -I../../../dist/include/nspr    -I../../../dist/sdk/
+include    -fPIC   -fno-rtti -fno-exceptions -Wall -Wconversion -Wpoi
+nter-arith -Wcast-align -Woverloaded-virtual -Wsynth -Wno-ctor-dtor-p
+rivacy -Wno-non-virtual-dtor -Wno-long-long -pedantic -fshort-wchar -
+pthread -pipe  -DNDEBUG -DTRIMMED -O   -DMOZILLA_CLIENT -include ../.
+./../mozilla-config.h  -D_GNU_SOURCE -O2   -DVERSION=\"0.81\" -DXS_VE
+RSION=\"0.81\" -fPIC "-I/usr/lib/perl/5.8/CORE"   Components.c
In file included from ../../../dist/include/string/nsAString.h:68,
                 from ../../../dist/include/string/nsSubstring.h:43,
                 from ../../../dist/include/string/nsString.h:44,
                 from ../perlXPUtil.h:46,
                 from Components.xs:39:
../../../dist/include/string/nsTAString.h:41:2: error: #error Cannot u
+se internal string classes without MOZILLA_INTERNAL_API defined. Use 
+the frozen header nsStringAPI.h instead.
In file included from ../../../dist/include/string/nsAString.h:74,
                 from ../../../dist/include/string/nsSubstring.h:43,
                 from ../../../dist/include/string/nsString.h:44,
                 from ../perlXPUtil.h:46,
                 from Components.xs:39:
../../../dist/include/string/nsTAString.h:41:2: error: #error Cannot u
+se internal string classes without MOZILLA_INTERNAL_API defined. Use 
+the frozen header nsStringAPI.h instead.
../../../dist/include/xpcom/xptinfo.h: In member function ‘const nsXPT
+CMiniVariant* nsXPTConstant::GetValue() const’:
../../../dist/include/xpcom/xptinfo.h:258: warning: type-punning to in
+complete type might break strict-aliasing rules
Components.xs: In function ‘void XS_Components_Classes(PerlInterpreter
+*, CV*)’:
Components.xs:99: error: ‘nsComponentManager’ has not been declared
Components.xs:111: error: ‘nsComponentManager’ has not been declared
Components.xs:114: warning: dereferencing type-punned pointer will bre
+ak strict-aliasing rules
Components.xs: In function ‘void XS_Components_ClassesByID(PerlInterpr
+eter*, CV*)’:
Components.xs:138: error: ‘nsComponentManager’ has not been declared
Components.xs:141: warning: dereferencing type-punned pointer will bre
+ak strict-aliasing rules
Components.xs: In function ‘void XS_Components_GetService(PerlInterpre
+ter*, CV*)’:
Components.xs:190: error: ‘nsComponentManager’ has not been declared
Components.xs:221: error: ‘nsServiceManager’ has not been declared
Components.xs: In function ‘void XS_Components_Constructor(PerlInterpr
+eter*, CV*)’:
Components.xs:240: error: ‘nsComponentManager’ has not been declared
Components.xs:250: error: ‘nsComponentManager’ has not been declared
Components.xs:250: warning: dereferencing type-punned pointer will bre
+ak strict-aliasing rules
Components.xs: In function ‘void XS_Components_Manager(PerlInterpreter
+*, CV*)’:
Components.xs:267: error: ‘NS_GetGlobalComponentManager’ was not decla
+red in this scope
Components.xs:272: error: no matching function for call to ‘perlXPUtil
+::makeXPObject(int, nsIID*, nsIComponentManager*&)’
../perlXPUtil.h:100: note: candidates are: static SV* perlXPUtil::make
+XPObject(nsCID*, nsIID*, nsISupports*)
Components.xs: In function ‘void XS_Components_WrapObject(PerlInterpre
+ter*, CV*)’:
Components.xs:291: error: ‘do_CreateInstance’ was not declared in this
+ scope
Components.xs:297: warning: dereferencing type-punned pointer will bre
+ak strict-aliasing rules
Components.c: In function ‘void XS_rawISupports_DESTROY(PerlInterprete
+r*, CV*)’:
Components.c:401: warning: unused variable ‘THIS’
Components.c: In function ‘void XS_XPCOM__nsISupports_DESTROY(PerlInte
+rpreter*, CV*)’:
Components.c:980: warning: unused variable ‘THIS’
nsISupports.xs: In function ‘void XS_XPCOM__nsISupports_QueryInterface
+(PerlInterpreter*, CV*)’:
nsISupports.xs:91: warning: dereferencing type-punned pointer will bre
+ak strict-aliasing rules
nsISupports.xs: In function ‘void XS_XPCOM__nsISupports_callXPCOMMetho
+d(PerlInterpreter*, CV*)’:
nsISupports.xs:700: warning: deleting ‘void*’ is undefined
nsISupports.xs:709: warning: deleting ‘void*’ is undefined
nsISupports.xs:840: warning: deleting ‘void*’ is undefined
nsISupports.xs:130: warning: unused variable ‘t_ctou’
../../../dist/include/xpcom/nsISupportsUtils.h: In static member funct
+ion ‘static const nsIID& nsCOMTypeInfo<T>::GetIID() [with T = nsIComp
+onentManager]’:
Components.xs:264:   instantiated from here
../../../dist/include/xpcom/nsISupportsUtils.h:202: error: incomplete 
+type ‘nsIComponentManager’ used in nested name specifier
/usr/lib/perl/5.8/CORE/reentr.inc: At global scope:
/usr/lib/perl/5.8/CORE/reentr.inc:155: warning: ‘group* Perl_reentr_ge
+tgrent()’ defined but not used
/usr/lib/perl/5.8/CORE/reentr.inc:233: warning: ‘group* Perl_reentr_ge
+tgrgid(gid_t)’ defined but not used
/usr/lib/perl/5.8/CORE/reentr.inc:291: warning: ‘group* Perl_reentr_ge
+tgrnam(const char*)’ defined but not used
/usr/lib/perl/5.8/CORE/reentr.inc:438: warning: ‘hostent* Perl_reentr_
+gethostbyaddr(const void*, socklen_t, int)’ defined but not used
/usr/lib/perl/5.8/CORE/reentr.inc:459: warning: ‘hostent* Perl_reentr_
+gethostbyname(const char*)’ defined but not used
/usr/lib/perl/5.8/CORE/reentr.inc:500: warning: ‘hostent* Perl_reentr_
+gethostent()’ defined but not used
/usr/lib/perl/5.8/CORE/reentr.inc:578: warning: ‘char* Perl_reentr_get
+login()’ defined but not used
/usr/lib/perl/5.8/CORE/reentr.inc:713: warning: ‘netent* Perl_reentr_g
+etnetbyaddr(uint32_t, int)’ defined but not used
/usr/lib/perl/5.8/CORE/reentr.inc:734: warning: ‘netent* Perl_reentr_g
+etnetbyname(const char*)’ defined but not used
/usr/lib/perl/5.8/CORE/reentr.inc:792: warning: ‘netent* Perl_reentr_g
+etnetent()’ defined but not used
/usr/lib/perl/5.8/CORE/reentr.inc:870: warning: ‘protoent* Perl_reentr
+_getprotobyname(const char*)’ defined but not used
/usr/lib/perl/5.8/CORE/reentr.inc:911: warning: ‘protoent* Perl_reentr
+_getprotobynumber(int)’ defined but not used
/usr/lib/perl/5.8/CORE/reentr.inc:952: warning: ‘protoent* Perl_reentr
+_getprotoent()’ defined but not used
/usr/lib/perl/5.8/CORE/reentr.inc:1010: warning: ‘passwd* Perl_reentr_
+getpwent()’ defined but not used
/usr/lib/perl/5.8/CORE/reentr.inc:1088: warning: ‘passwd* Perl_reentr_
+getpwnam(const char*)’ defined but not used
/usr/lib/perl/5.8/CORE/reentr.inc:1146: warning: ‘passwd* Perl_reentr_
+getpwuid(uid_t)’ defined but not used
/usr/lib/perl/5.8/CORE/reentr.inc:1204: warning: ‘servent* Perl_reentr
+_getservbyname(const char*, const char*)’ defined but not used
/usr/lib/perl/5.8/CORE/reentr.inc:1245: warning: ‘servent* Perl_reentr
+_getservbyport(int, const char*)’ defined but not used
/usr/lib/perl/5.8/CORE/reentr.inc:1286: warning: ‘servent* Perl_reentr
+_getservent()’ defined but not used
/usr/lib/perl/5.8/CORE/reentr.inc:1344: warning: ‘spwd* Perl_reentr_ge
+tspnam(const char*)’ defined but not used
make[5]: *** [Components.o] Error 1
&lt;snip&gt;

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In reply to Can plXPCOM be revived? by RHainsworth

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