How do you pass -I flag to perl-build or change the include paths list

[ComLock]

$ plenv install 5.19.3
Fails on my x86_64 mageia with gcc 4.7.2

Reason being:
Your C compiler "cc" doesn't seem to support stdarg or varargs!

The files (stdarg.h and varargs.h) does exist in:
/usr/lib/gcc/x86_64-mageia-linux-gnu/4.7.2/include

And gcc does include them internally:
$ touch foo.c && gcc --verbose -c foo.c 2>&1 |grep -A3 '#include <'

include <...> search starts here:

/usr/lib/gcc/x86_64-mageia-linux-gnu/4.7.2/include
/usr/local/include
/usr/include

But perl-build does not look in that directory:
Directories to use for library searches?
[/usr/local/lib /lib/../lib64 /usr/lib/../lib64 /lib /usr/lib /lib64 /usr/lib64 /usr/local/lib64]

How can I change that list

[tokuhirom]

It's a general Perl5 question. Not a perl-build specific. Maybe, you can pass it by -Dotherlibdirs=/usr/lib/perl5/site_perl/5.8.1 or something others.

You can pass -D, -A, -U options to plenv instlal. For more details about options, please read INSTALL document included in perl5 tar ball.