Fix compilation-mode matches for csharp-mode (bug#78128)

* lisp/progmodes/csharp-mode.el:
(csharp-compilation-re-dotnet-error):
(csharp-compilation-re-dotnet-warning): Ignore leading whitespace.

(cherry picked from commit ebeaa728b66d0674fa499bf0bf2ae573ec9984aa)

diff --git a/lisp/progmodes/csharp-mode.el b/lisp/progmodes/csharp-mode.el
index e002391d3057129c360bf253d4b6f20c42f707c6..bba7cf681e9f5525a22dd37707433a700d8bf78a 100644 (file)
--- a/lisp/progmodes/csharp-mode.el
+++ b/lisp/progmodes/csharp-mode.el
@@ -584,10 +584,10 @@ compilation and evaluation time conflicts."
   "Regexp to match compilation warning from xbuild.")
 
 (defconst csharp-compilation-re-dotnet-error
-  "\\([^\r\n]+\\) : error [A-Z]+[0-9]+:")
+  "[[:blank:]]*\\([^\r\n]+\\) : error [A-Z]+[0-9]+:")
 
 (defconst csharp-compilation-re-dotnet-warning
-  "\\([^\r\n]+\\) : warning [A-Z]+[0-9]+:")
+  "[[:blank:]]*\\([^\r\n]+\\) : warning [A-Z]+[0-9]+:")
 
 (defconst csharp-compilation-re-dotnet-testfail
   (concat