Thanks for the links. I hoped to get a better understanding (?) in trying to compile this stuff myself... I thought that the copying trick (*.dell.a -> *.a) removed the need to gives the -lxxx in the LIBS parameter. That's not the case obviously.

And what is the :nosearch added to the beginning of the LIBS parameter doing ? Is it this that can be used in place of the files copy ?

I hoped to get a better understanding (?) in trying to compile this stuff myself...

Yes, that's the way to learn - though picking something as large as glib is just as likely to lead to "utter confusion" as to "understanding" ;-)
(At least I sure am glad I didn't try to learn what I know by building glib.)

I thought that the copying trick (*.dell.a -> *.a) removed the need to gives the -lxxx in the LIBS parameter

No, no - you always need to give the -lxxx argument. But if you provide the -lxxx argument && the 'perl Makefile.PL' step emits the warning that no library was found for -lxxx && you know that libxxx.dll.a was in the library search path THEN you need to copy libxxx.dll.a to libxxx.a (because your version of ExtUtils::MakeMaker was obviously too stupid to equate -lxxx with libxxx.dll.a but will be quite capable of equating -lxxx with libxxx.a).

And what is the :nosearch added to the beginning of the LIBS parameter doing ?

Where in this thread is ":nosearch" mentioned ?
Ok ... there are already 2 occurrences of the term in this post of mine, and I can see it in your previous post (to which I'm replying) but I can't see it anywhere else and I therefore don't see the relevance of the question.

I reckon I've seen ":nosearch" in other places, but I don't know what it means and it's not something I've had to bother about in the past. Google can probably provide an explanation.

Cheers,
Rob

:nosearch was used here

https://project-renard.github.io/doc/development/meeting-log/posts/201
+6/05/03/windows-build-with-msys2/
[download]

"And from the doc: An entry of the form -lfoo specifies the library foo, which may be spelled differently depending on what kind of compiler you are using. If you are using GCC, it gets translated to libfoo.a, but for other win32 compilers, it becomes foo.lib. ... An entry that matches /:nosearch/i disables all searching for the libraries specified after it"

It was my understanding that :nosearch get the dll.a lib used instead of the .a lib by the linker.

What am I missing with having undefined reference to `g_value_get_variant' with the code below ?

Thanks

François

g++ Glib.def -o blib\arch\auto\Glib\Glib.xs.dll -mdll -s -L"C:\STRAWB~
+1\perl\lib\CORE" -L"C:\STRAWB~1\c\lib" Glib.o GError.o GUtils.o GLog.
+o GType.o GBoxed.o GObject.o GValue.o GClosure.o GSignal.o GMainLoop.
+o GIOChannel.o GParamSpec.o GKeyFile.o GOption.o GBookmarkFile.o GVar
+iant.o gperl-gtypes.o   "C:\STRAWB~1\perl\lib\CORE\libperl524.a" "C:\
+prog\gtk+\lib\libglib-2.0.a" "C:\prog\gtk+\lib\libintl.a" "C:\prog\gt
+k+\lib\libgobject-2.0.a" "C:\prog\gtk+\lib\libgthread-2.0.a" "C:\STRA
+WB~1\c\i686-w64-mingw32\lib\libmoldname.a" "C:\STRAWB~1\c\i686-w64-mi
+ngw32\lib\libkernel32.a" "C:\STRAWB~1\c\i686-w64-mingw32\lib\libuser3
+2.a" "C:\STRAWB~1\c\i686-w64-mingw32\lib\libgdi32.a" "C:\STRAWB~1\c\i
+686-w64-mingw32\lib\libwinspool.a" "C:\STRAWB~1\c\i686-w64-mingw32\li
+b\libcomdlg32.a" "C:\STRAWB~1\c\i686-w64-mingw32\lib\libadvapi32.a" "
+C:\STRAWB~1\c\i686-w64-mingw32\lib\libshell32.a" "C:\STRAWB~1\c\i686-
+w64-mingw32\lib\libole32.a" "C:\STRAWB~1\c\i686-w64-mingw32\lib\libol
+eaut32.a" "C:\STRAWB~1\c\i686-w64-mingw32\lib\libnetapi32.a" "C:\STRA
+WB~1\c\i686-w64-mingw32\lib\libuuid.a" "C:\STRAWB~1\c\i686-w64-mingw3
+2\lib\libws2_32.a" "C:\STRAWB~1\c\i686-w64-mingw32\lib\libmpr.a" "C:\
+STRAWB~1\c\i686-w64-mingw32\lib\libwinmm.a" "C:\STRAWB~1\c\i686-w64-m
+ingw32\lib\libversion.a" "C:\STRAWB~1\c\i686-w64-mingw32\lib\libodbc3
+2.a" "C:\STRAWB~1\c\i686-w64-mingw32\lib\libodbccp32.a" "C:\STRAWB~1\
+c\i686-w64-mingw32\lib\libcomctl32.a" -Wl,--enable-auto-image-base
[download]