Re: Glib/cygwin minor changes

["Huang." <hzhr 21cn com>]

Stefan Ondrejicka wrote:
> Hello,
>
> Here is patch which I made while building glib-2.0.7 on cygwin:
It's good.
I have built a DLL version of glib-2.0.6(and 
gtk+-2.0.6,atk-1.0.3,pango-1.0.4) on cygwin too, just a little different 
with you.
The key is use the development versions of libtools( autoconf-2.5x + 
automake-1.6 + hacked libtool-20020202) but not the stable 
versions(autoconf-2.13 + automake-1.4-p5 + libtool-1.4.2), because 
libtool-20020202 can build share libs but libtool-1.4.2 can't on cygwin.
So, I cp
/usr/autotool/devel/share/libtool/(config.guess,install-sh,ltmain.sh,mkinstalldirs,config.sub, 
 missing)
 to glib-2.0.6 root dir, replace old copies.
then modify:

> * configure.in: use AC_TRY_LINK instead of AC_TRY_COMPILE when testing
>   nl_langinfo(CODESET) because cygwin contains langinfo.h with
>   nl_langinfo() declaration but the function doesn't exist in cygwin
>   runtime. Add /lib/w32api to library search path on cygwin.
same in configure.in:
 # require autoconf 2.52
-AC_PREREQ(2.52)
+AC_PREREQ(2.53)

and some Makefile.am

-AUTOMAKE_OPTIONS = 1.4
+AUTOMAKE_OPTIONS = 1.6.2

then run:
aclocal -I /usr/local/share/aclocal
autoheader
libtoolize -c --automake
automake --add-missing --copy --include-deps
autoconf
to update configure, Makefile.in, etc.

Yes, some code files need to be fixed:
on cygwin : G_OS_UNIX & G_PLATFORM_WIN32
> * glib/gutils.c (_glib_get_local_dir): on cygwin conditionaly returns
>   locale dir with win32 or unix path depend on glib instalation
>
> * glib/gutils.h (G_WIN32_DLLMAIN_FOR_DLL_NAME): set posix path on
>   cygwin, don't define when compiling static glib
the DllMain is not needed

> * glib/gthread.c:
> * glib/gstrfuncs.c:
> * glib/gmain.c: don't dllexport global variables when compiling static 
>   glib library
i change some G_PLATFORM_WIN32 to G_OS_WIN32

> * gmodule/gmodule-win32.c: on cygwin set "cyg" prefix for modules instead
>   of "lib" prefix used on mingw
yes.
i also change:
glib-2.0.6/glib/libcharset/config.charset
@@ -300,7 +300,7 @@
 	# BeOS has a single locale, and it has UTF-8 encoding.
 	echo "* UTF-8"
 	;;
-    msdosdjgpp*)
+    msdosdjgpp*|cygwin*)

> I hope, that someone with CVS write access will apply this patch. When
> building DLLs on cygwin there is problem with libtool when there is
> missing option -mdll or -shared when linking the DLL and gcc complains
> about undefined reference to WinMain 16, but it is probably problem with
> used particular libtool version.
try my way?
hope useful.

> Best regards,
> Stevo.