| Subject: | v0.54: Buglet in Win32 linker flags - -lzlib instead of -lz |
| Date: | Sun, 12 Nov 2006 18:06:55 +0100 (MET) |
| To: | bug-Imager [...] rt.cpan.org |
| From: | Max Maischein <corion [...] cpan.org> |
Hello Tony,
thanks for writing and maintaining the Imager package!
When building and automating it, I found that on Win32, it doesn't pick
up the zlib libraries because it uses the hardcoded switch "-lz" while
on Win32, the file name is "zlib.lib". Using "-lzlib" instead worked on
Win32:
--- Makefile.PL.org Tue Sep 12 06:13:07 2006
+++ Makefile.PL Sun Nov 12 18:10:24 2006
@@ -467,7 +467,7 @@
def=>'HAVE_LIBPNG',
inccheck=>sub { -e catfile($_[0], 'png.h') },
libcheck=>sub { $_[0] eq "libpng$aext" or $_[0] eq
"libpng.$lext" },
- libfiles=>'-lpng -lz',
+ libfiles=>$^O eq 'MSWin32' ? '-lpng -lzlib' : '-lpng -lz',
objfiles=>'png.o',
docs=>q{
I assume that the check for "MSWin32" is OK, as Cygwin likely uses "-lz"
instead of "-lzlib", again.
A workaround on version 0.54 is to use the IM_LFLAGS environment
variable to specify both, the path to the zlib library and -lzlib.
The order seems to be important:
C:\.cpan\build\Imager-0.54>set
IM_LFLAGS=-LC:\perl\site\5.8.5\lib\alien\zlib\lib -lzlib
C:\.cpan\build\Imager-0.54>perl -w Makefile.PL
Hope that helps,
-max