Bug #61454 for Devel-CheckLib: Ignores perl's configured cc- and ld-flags

When checking for includes and libraries, Devel-CheckLib entirely relies on the default lib- and inc-paths of the compiler, as well as the ones explicitly configured by its user. Compiler- and linker-flags perl has been configured to use are entirely ignored. ExtUtils::MakeMaker and other modules actually compiling code including certain headers and linking against their libraries use those flags. Therefore it's possible that Devel::CheckLib claims a library or header is not be available while it actually is, and compiling and linking would just work. That's a bug. The following patch isn't pretty, but fixes the issue. The patch is also available in the config_ccldflags branch of git://github.com/rafl/p5-Devel-CheckLib.git.

From 7c22b45a677699209f98fe38b0be5355eb041ce4 Mon Sep 17 00:00:00 2001 From: Florian Ragwitz <rafl@debian.org> Date: Sun, 19 Sep 2010 00:32:09 +0200 Subject: [PATCH] Honour configured perl {cc,ld}flags --- lib/Devel/CheckLib.pm | 7 +++++-- 1 files changed, 5 insertions(+), 2 deletions(-) diff --git a/lib/Devel/CheckLib.pm b/lib/Devel/CheckLib.pm index ebf1a87..9ef7b29 100644 --- a/lib/Devel/CheckLib.pm +++ b/lib/Devel/CheckLib.pm @@ -7,6 +7,7 @@ use strict; use vars qw($VERSION @ISA @EXPORT); $VERSION = '0.8'; use Config; +use Text::ParseWords 'quotewords'; use File::Spec; use File::Temp; @@ -329,12 +330,14 @@ sub _cleanup_exe { } sub _findcc { + my @flags = grep { length } map { quotewords('\s+', 0, $_) } + @Config{qw(ccflags ldflags)}; my @paths = split(/$Config{path_sep}/, $ENV{PATH}); my @cc = split(/\s+/, $Config{cc}); - return @cc if -x $cc[0]; + return (@cc, @flags) if -x $cc[0]; foreach my $path (@paths) { my $compiler = File::Spec->catfile($path, $cc[0]) . $Config{_exe}; - return ($compiler, @cc[1 .. $#cc]) if -x $compiler; + return ($compiler, @cc[1 .. $#cc], @flags) if -x $compiler; } die("Couldn't find your C compiler\n"); } -- 1.7.1