xchm: rebuild against wx 3.0.

Patch from Debian.

srcpkgs/xchm/patches/xchm-1.23-wx3.0-compat.patch

@@ -0,0 +1,32 @@
+Description: Fix code to compile with wxwidgets 3.0
+ Drops support for wx < 2.7, which is just not relevant now.  And in fact
+ configure.ac checks for at least 2.8.0.
+Author: Olly Betts <olly@survex.com>
+Last-Update: 2014-03-07
+
+--- src/chmframe.cpp
++++ src/chmframe.cpp
+@@ -265,11 +265,7 @@ void CHMFrame::OnChangeFonts(wxCommandEv
+ 		enu.EnumerateFacenames();
+ 		_normalFonts = new wxArrayString;
+ 
+-#if wxMAJOR_VERSION == 2 && wxMINOR_VERSION >= 7
+ 		*_normalFonts = enu.GetFacenames();
+-#else
+-		*_normalFonts = *enu.GetFacenames();
+-#endif
+ 		_normalFonts->Sort();
+ 	}
+ 
+@@ -278,11 +274,7 @@ void CHMFrame::OnChangeFonts(wxCommandEv
+ 		enu.EnumerateFacenames(wxFONTENCODING_SYSTEM, TRUE);
+ 		_fixedFonts = new wxArrayString;
+ 
+-#if wxMAJOR_VERSION == 2 && wxMINOR_VERSION >= 7
+ 		*_fixedFonts = enu.GetFacenames();
+-#else
+-		*_fixedFonts = *enu.GetFacenames();
+-#endif
+ 		_fixedFonts->Sort();
+ 	}
+ 

srcpkgs/xchm/template

@@ -1,9 +1,10 @@
 # Template file for 'xchm'
 pkgname=xchm
 version=1.23
-revision=1
+revision=2
 build_style=gnu-configure
-makedepends="libchmlib-devel wxGTK-devel"
+configure_args="--with-wx-config=wx-config-3.0"
+makedepends="libchmlib-devel wxWidgets-devel"
 short_desc="The CHM viewer for Unix"
 maintainer="Christian Neukirchen <chneukirchen@gmail.com>"
 license="GPL-2"