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use strict;
use warnings;
use Config;
use FindBin;
use lib "$FindBin::Bin"; # required to load filter-util.pl
BEGIN {
my $cpp;
my $sep;
if ($^O eq 'MSWin32') {
$cpp = 'cpp.exe' ;
$sep = ';';
}
else {
($cpp) = $Config{cppstdin} =~ /^(\S+)/;
$sep = ':';
}
if (! $cpp) {
print "1..0 # Skipping cpp not found on this system.\n" ;
exit 0 ;
}
# Check if cpp is installed
if ( ! -x $cpp) {
my $foundCPP = 0 ;
foreach my $dir (split($sep, $ENV{PATH}), '') {
if (-x "$dir/$cpp") {
$foundCPP = 1;
last ;
}
}
if (! $foundCPP) {
print "1..0 # Skipping cpp not found on this system.\n" ;
exit 0 ;
}
}
}
use vars qw( $Inc $Perl ) ;
require "filter-util.pl" ;
my $script = <<'EOF' ;
use Filter::cpp ;
#define FRED 1
#define JOE
#a perl comment, not a cpp line
$a = FRED + 2 ;
print "a = $a\n" ;
require "./fred" ;
#ifdef JOE
print "Hello Joe\n" ;
#else
print "Where is Joe?\n" ;
#endif
EOF
my $cpp_script = 'cpp.script' ;
writeFile($cpp_script, $script) ;
writeFile('fred', 'print "This is FRED, not JOE\n" ; 1 ;') ;
my $expected_output = <<'EOM' ;
a = 3
This is FRED, not JOE
Hello Joe
EOM
$a = `$Perl $Inc $cpp_script 2>&1` ;
print "1..2\n" ;
ok(1, ($? >>8) == 0) ;
#print "|$a| vs |$expected_output|\n";
ok(2, $a eq $expected_output) ;
unlink $cpp_script ;
unlink 'fred' ;
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