Your code runs fine here as posted. For anyone who wants to try it, you need to add
#include <EXTERN.h>
#include <perl.h>
as headers and compile with
cc -o perl-interp perl-interp.c `perl -MExtUtils::Embed -e ccopts -e
+ ldopts`
Furthermore, I changed the args to be more descriptive:
char *one_args[] = { "one_perl", "-e", "print qq(Hi, I'm 1\n)" };
+
char *two_args[] = { "two_perl", "-e", "print qq(Hi, I'm 2\n)" };
Maybe you could say what platform, Perl version, and compiler you are using? I'm using linux, Perl 5.8.8 , and gcc 4.1.1
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