As of JPEG-9, the type 'boolean' is an enumeration, but since glib defines
TRUE and FALSE as numeric constants and this is C++, they need to be explicitly
casted.

--- a/src/af/util/xp/ut_jpeg.cpp
+++ b/src/af/util/xp/ut_jpeg.cpp
@@ -102,7 +102,7 @@ static boolean _jpegFillInputBuffer (j_decompress_ptr cinfo)
 	src->pub.next_input_byte = src->sourceBuf->getPointer (src->pos);
 	src->pub.bytes_in_buffer = src->sourceBuf->getLength ();
 
-	return 1; // boolean is a libjpeg type that is an int.
+	return (boolean)TRUE;
 }
 
 /*


In the following file, we also need to reverse header include order: JPEG needs
to be included before Glib, which is included by "abiword-garble.h" for this fix
to work.

The JPEG header needs the types FILE and size_t, we can get them from cstdio.

--- a/plugins/garble/xp/abiword-garble-jpeg.cpp	2009-09-05 17:49:53.000000000 +0200
+++ b/plugins/garble/xp/abiword-garble-jpeg.cpp	2014-09-07 21:28:49.364008571 +0200
@@ -20,12 +20,14 @@
  * 02111-1307, USA.
  */
 
-#include "abiword-garble.h"
+#include <cstdio>
 
 extern "C" {
 	#include <jpeglib.h>
 }
 
+#include "abiword-garble.h"
+
 //-----------------------------------------------------------------------------
 typedef struct {
 	struct jpeg_destination_mgr pub;
@@ -49,7 +51,7 @@
     mem_dest_ptr dest = (mem_dest_ptr) cinfo->dest;
     dest->pub.next_output_byte = dest->buf;
     dest->pub.free_in_buffer = dest->bufsize;
-    return FALSE;
+    return (boolean)FALSE;
 }
 
 //-----------------------------------------------------------------------------
@@ -96,7 +98,7 @@
 	cinfo.image_width = (JDIMENSION) w;
 	cinfo.image_height = (JDIMENSION) h;
 	jpeg_set_defaults (&cinfo);
-	jpeg_set_quality ( &cinfo, 50, TRUE );
+	jpeg_set_quality ( &cinfo, 50, (boolean)TRUE );
 	cinfo.dest = (struct jpeg_destination_mgr *) (*cinfo.mem->alloc_small)((j_common_ptr)&cinfo, JPOOL_PERMANENT, sizeof(mem_destination_mgr));
     dest = (mem_dest_ptr) cinfo.dest;
     dest->pub.init_destination    = _jpeg_init_destination;
@@ -105,7 +107,7 @@
     dest->buf      = (JOCTET*)data;
     dest->bufsize  = length;
     dest->jpegsize = 0;
-	jpeg_start_compress (&cinfo, TRUE);
+	jpeg_start_compress (&cinfo, (boolean)TRUE);
 
 	// write data
 	for (int i=0; i<h; ++i)
@@ -121,4 +123,4 @@
 		free( dib[i] );
 	free( dib );
 	return true;
-}
\ No newline at end of file
+}
fe881'>proxy.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/installer/proxy.scm?id=c5e436b0b1a4d2d8637f8f08e662619f3f7fe881&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2020-12-11 21:37:07 +0100'>2020-12-11</span></td><td><a href='/guix/commit/gnu/installer/proxy.scm?id=8361817bf693742757b096468198626f297bb09e'>install: Discover local substitute servers.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/installer/substitutes.scm: New file.
* gnu/installer/newt/substitutes.scm: New file.
* gnu/local.mk (INSTALLER_MODULES): Add them.
* po/guix/POTFILES.in: Add gnu/installer/newt/substitutes.scm.
* gnu/installer/proxy.scm (with-silent-shepherd): Move to ...
* gnu/installer/utils.scm: ... here.
* gnu/installer/record.scm (&lt;installer&gt;)[substitutes-page]: New field.
* gnu/installer/newt.scm (substitutes-page): New procedure,
(newt-installer): register it.
* gnu/installer.scm (installer-steps): Add "substitutes-page" step.
* gnu/system/install.scm (%installation-services): Add avahi-service-type and
enable substitute server discover in guix-service-type.
[&lt;name-service-switch&gt;]: Set it to %mdns-host-lookup-nss.
</span></span></td><td>Mathieu Othacehe</td></tr>
<tr><td><span title='2020-04-08 10:24:02 +0200'>2020-04-08</span></td><td><a href='/guix/commit/gnu/installer/proxy.scm?id=ee0ad7803c82383ac1bced073d8670bc407797e7'>installer: Add proxy support.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/installer/proxy.scm: New file.
* gnu/local.mk (INSTALLER_MODULES): Add it.
* po/guix/POTFILES.in: Add it.
* gnu/installer/newt/parameters.scm (run-proxy-page): New procedure,
(run-parameters-page): add the previous procedure to the parameters menu.
</span></span></td><td>Mathieu Othacehe</td></tr>