Re: fltk-config for windows gives -mwindows flag (was octave-3.3.50 built by mingw-gcc-4.4.0 cannot be executed.)

[Benjamin Lindner]

> > For the mingw binaries, since I need to build fltk from source, I can 
> > remove the -mwindows flag there from fltk-config, so I would't need to 
> > have it dealt with in octave's configure script.
> >
> > Does this problem also occur on cygwin?
> >
> > If we deal with this in octave's configure script, then I'd suggest it 
> > be done only for mingw (and cygwn?) platform.
> >
> > sed -e "+s-mwindows++g"
> The above is typo. sed -e "s+-mwindows++g" is correct. 

You are right, sorry.

> > Hi Tatsuro,
> > currently fltk don't work on cygwin; at least for me.
> > The windows is created but only garbage is plotted.
>
> Although Benjamin said "so I would't need to have it dealt with in octave's 
> configure script", I
> propose here the patch for FLTK_LDFLAGS.

You can avoid the code duplication in the call to fltk-config by doing

diff -r a65c135a1deb configure.in
--- a/configure.in      Mon Oct 05 19:22:13 2009 +0200
+++ b/configure.in      Mon Oct 05 20:30:33 2009 +0200
@@ -847,6 +847,11 @@
   FLTK_CFLAGS="`$FLTK_CONFIG $fltkconf_args --use-gl --cflags`"
   FLTK_LDFLAGS="`$FLTK_CONFIG $fltkconf_args --use-gl --ldflags`"

+  case "$canonical_host_type" in
+  *-*-mingw*)
+    FLTK_LDFLAGS="`echo $FLTK_LDFLAGS | sed -e 's+-mwindows++g'`"
+  esac
+
   AC_MSG_CHECKING(for OpenGL support in FLTK)
   cat > conftest.cc <<EOF
   #include <FL/gl.h>


benjamin