Fixed:
- There might be a space between "#!" and "/pat/to/usr/bin/perl", e.g.:
  "#! /usr/bin/perl", now also matches it.

- There might be the lines like the following in the body:
  eval 'exec /path/to/usr/bin/perl-native/perl -S $0 ${1+"$@"}'

  Now we only check "#! */path/to/usr/bin/perl" to make sure it is a
  perl script, but match and fix the lines in both header and body.

Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

Makefile.PLs can exit with success without generating a Makefile,
e.g. in cases of missing configure time dependencies. This is
considered a best practice by cpantesters.org. See:

 * http://wiki.cpantesters.org/wiki/CPANAuthorNotes
 * http://www.nntp.perl.org/group/perl.qa/2008/08/msg11236.html

Signed-off-by: Olof Johansson <olof.johansson@axis.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>

With normal toolchain it works. But fails badly when external Linaro
toolchain is used. And this is why:

-e "s/^\(CCFLAGS =.*\)/\1  -isystem/home/hrw/devel/canonical/aarch64/openembedded/build/linaro-tcwg/gcc-linaro-aarch64-linux-gnu-4.7-2013.04-20130415_linux//aarch64-linux-gnu/include  -O2 -pipe -g -feliminate-unused-debug-types/" \

Signed-off-by: Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>
Signed-off-by: Saul Wold <sgw@linux.intel.com>

We should not just replace CCFLAGS with CFLAGS while compiling, because
this may cause run-time errors with perl's DynaLoader.pm.

Tested on qemux86 with new libnet-libidn-perl bb recipe:

root@qemux86:~# perl -e "use Net::LibIDN"
Not a CODE reference at /usr/lib/perl/5.14.2//DynaLoader.pm line 213.
END failed--call queue aborted at /usr/lib/perl/vendor_perl/5.14.2//Net/LibIDN.pm line 213.
Compilation failed in require at -e line 1.
BEGIN failed--compilation aborted at -e line 1.

Signed-off-by: Xin Ouyang <Xin.Ouyang@windriver.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>

If there is a patch to Makefile.PL, a Makefile.PL but no Makefile
will be placed in ${B}/.pc/xxx.patch/ after do_patch.
And no Makefile will be generated for *this* Makefile.PL.
While do_configure, the original code tries to sed Makefiles
matching with each Makefile.PL in {B}, so this would fail.

Signed-off-by: Xin Ouyang <Xin.Ouyang@windriver.com>

Signed-off-by: Saul Wold <sgw@linux.intel.com>

On hosts where we may already be past the #! limit this is required
and this is safe on the target as well.  This is be7fe31 in oe.dev.
Related to this we now bump all PRs for recipes that inherit cpan.
Note that in oe.dev we mangle for perl but here we use the new
nativeperl script.

Signed-off-by: Tom Rini <tom_rini@mentor.com>

Since perl-native now populates into its own dir, here we need
change accordingly.

Signed-off-by: Dexuan Cui <dexuan.cui@intel.com>

This makes sure that native perl .so can get loaded at the buildtime, and
avoids following kind of errors while building perl modules:

Nitin A Kamble <nitin.a.kamble@intel.com> 2011/04/20

+ perl Makefile.PL
EXPATLIBPATH=/disk0/pokybuild/build0/tmp/sysroots/qemux86/usr/lib
EXPATINCPATH=/disk0/pokybuild/build0/tmp/sysroots/qemux86/usr/include
*** Module name IN:
/disk0/pokybuild/build0/tmp/sysroots/qemux86/usr/lib/perl/5.12.2/Cwd.pm
*** Module name OUT:
/disk0/pokybuild/build0/tmp/sysroots/qemux86/usr/lib/perl/5.12.2/Cwd.pm
*** Module name IN:
/disk0/pokybuild/build0/tmp/sysroots/qemux86/usr/lib/perl/5.12.2/Fcntl.pm
*** Module name OUT:
/disk0/pokybuild/build0/tmp/sysroots/qemux86/usr/lib/perl/5.12.2/Fcntl.pm
Can't load
'/disk0/pokybuild/build0/tmp/sysroots/qemux86/usr/lib/perl/5.12.2/auto/Fcntl/Fcntl.so'
for module Fcntl:
/disk0/pokybuild/build0/tmp/sysroots/qemux86/usr/lib/perl/5.12.2/auto/Fcntl/Fcntl.so:
wrong ELF class: ELFCLASS32 at
/disk0/pokybuild/build0/tmp/sysroots/qemux86/usr/lib/perl/5.12.2/XSLoader.pm
line 79.
 at
/disk0/pokybuild/build0/tmp/sysroots/qemux86/usr/lib/perl/5.12.2/Fcntl.pm
line 215
BEGIN failed--compilation aborted at
/disk0/pokybuild/build0/tmp/sysroots/qemux86/usr/lib/perl/5.12.2/Fcntl.pm
line 216.
Compilation failed in require at
/disk0/pokybuild/build0/tmp/sysroots/qemux86/usr/lib/perl/5.12.2/File/Temp.pm
line 146.
BEGIN failed--compilation aborted at
/disk0/pokybuild/build0/tmp/sysroots/qemux86/usr/lib/perl/5.12.2/File/Temp.pm
line 146.
Compilation failed in require at inc/Devel/CheckLib.pm line 12.
BEGIN failed--compilation aborted at inc/Devel/CheckLib.pm line 12.
Compilation failed in require at Makefile.PL line 5.
BEGIN failed--compilation aborted at Makefile.PL line 5.
ERROR: Function 'do_configure' failed (see
/disk0/pokybuild/build0/tmp/work/i586-poky-linux/libxml-parser-perl-2.40-r0/temp/log.do_configure.16956
for further information)

Signed-off-by: Nitin A Kamble <nitin.a.kamble@intel.com>

We use host perl while building target perl modules. When some of the
prebuilt perl modules such as scalar::util are used in the build process
directly or indirectly, perl needs to load the arch specific .so library
file. If perl can not find the .so library files, then perl
tries to use the target pm files which ends up in circular perl module
depedancy causing build time perl invocation to fail.

Adding this new parameter viz EXTRA_PERLFLAGS to cpan.bbclass allows perl
module recipes to specify the location of such host .so files for hostperl,
so that build time invocation of perl does not fail.

Signed-off-by: Nitin A Kamble <nitin.a.kamble@intel.com>