From 4abcbc7a2ee68f32d5381079e341f63c66cf55ca Mon Sep 17 00:00:00 2001
From: John Cupitt <jcupitt@gmail.com>
Date: Sat, 24 Apr 2021 18:23:27 +0100
Subject: [PATCH] try to improve the error message

---
 libvips/colour/icc_transform.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/libvips/colour/icc_transform.c b/libvips/colour/icc_transform.c
index 9d6e4cb8..f934b41c 100644
--- a/libvips/colour/icc_transform.c
+++ b/libvips/colour/icc_transform.c
@@ -611,6 +611,8 @@ vips_image_expected_sig( VipsImage *image )
 
 /* Load a profile from a blob and check compatibility with image, intent and
  * direction.
+ *
+ * Don't set any errors since this is used to test compatibility.
  */
 static cmsHPROFILE
 vips_icc_load_profile_blob( VipsBlob *blob, 
@@ -742,7 +744,8 @@ vips_icc_set_import( VipsIcc *icc,
 	}
 
 	if( !icc->in_profile ) {
-		vips_error( class->nickname, "%s", _( "no input profile" ) ); 
+		vips_error( class->nickname, "%s", _( "unable to load or "
+			"find any compatible input profile" ) ); 
 		return( -1 );
 	}