From: Vincent Pit <vince@profvince.com>
Date: Tue, 7 Apr 2015 16:06:30 +0000 (-0300)
Subject: First try looking for the linker in the same directory as the compiler
X-Git-Url: http://git.vpit.fr/?p=perl%2Fmodules%2FScalar-Vec-Util.git;a=commitdiff_plain;h=a0fe58c410ccb7c3ebab821267cdafb5c561e316

First try looking for the linker in the same directory as the compiler
---

diff --git a/Makefile.PL b/Makefile.PL
index 1af2ae8..cd341ad 100644
--- a/Makefile.PL
+++ b/Makefile.PL
@@ -8,15 +8,22 @@ use Config;
 use File::Spec;
 
 sub validate_exe {
- my ($name) = @_;
+ my ($name, $preferred_path) = @_;
 
  my (@candidates, @args);
  if (File::Spec->file_name_is_absolute($name)) {
   # No need to look for args if the name is absolute.
   @candidates = $name;
  } else {
+  my @path;
+  if (defined $preferred_path) {
+   @path = ($preferred_path, grep { $_ ne $preferred_path } File::Spec->path);
+  } else {
+   @path = File::Spec->path;
+  }
+
   (my $base, @args) = split ' ', $name;
-  for my $path_entry (File::Spec->path) {
+  for my $path_entry (@path) {
    my ($vol, $dir, $file) = File::Spec->splitpath($path_entry, 1);
    next if defined $file and length $file;
    push @candidates, File::Spec->catpath($vol, $dir, $base);
@@ -35,13 +42,13 @@ sub validate_exe {
 }
 
 sub check_exe {
- my ($desc, $arg_var, $config_var, $env_var) = @_;
+ my ($desc, $arg_var, $config_var, $env_var, $preferred_path) = @_;
 
  my $exe;
 
  for (@ARGV) {
   if (/^\Q$arg_var\E=(.*)/) {
-   $exe = validate_exe($1);
+   $exe = validate_exe($1, $preferred_path);
    last if defined $exe;
   }
  }
@@ -50,10 +57,10 @@ sub check_exe {
   print "Forcing the use of $exe as the $desc.\n";
  } else {
   print "Checking for a valid $desc in the PATH... ";
-  $exe = validate_exe($Config{$config_var});
+  $exe = validate_exe($Config{$config_var}, $preferred_path);
   # Only fall back to env if we cannot find the one used to build perl.
   if (not defined $exe and defined $ENV{$env_var}) {
-   $exe = validate_exe($ENV{$env_var});
+   $exe = validate_exe($ENV{$env_var}, $preferred_path);
   }
   if (defined $exe) {
    print "$exe\n";
@@ -86,7 +93,9 @@ my ($cc, $ld);
 unless ($pp) {
  $cc = check_exe('C compiler', 'CC', 'cc', 'CC');
  if (defined $cc) {
-  $ld = check_exe('linker', 'LD', 'ld', 'LD');
+  my ($vol, $dir, $file) = File::Spec->splitpath($cc);
+  my $preferred_path = File::Spec->catpath($vol, $dir, '');
+  $ld = check_exe('linker', 'LD', 'ld', 'LD', $preferred_path);
  }
 }