From 1bfe27a0b3ffcacbe9d1453fc281033f8040bccf Mon Sep 17 00:00:00 2001
From: Daniel Bevenius <daniel.bevenius@gmail.com>
Date: Wed, 30 Apr 2025 19:55:37 +0200
Subject: [PATCH] whisper : add check that target name exists

This commit adds a check to makes sure that the target exists before
trying to add compile options to ignore warnings when using MSVC.

The motivation for this is currently the build is broken depending on
the cmake options provided. With this fix it should be possible to build
even if the targets are not actually available.

Refs: https://github.com/ggml-org/whisper.cpp/pull/3090#issuecomment-2842760104
---
 CMakeLists.txt      |  4 +++-
 ggml/CMakeLists.txt | 11 ++++++++++-
 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index ec750928247..fe82c65d103 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -226,7 +226,9 @@ if (MSVC)
         /wd4996  # Function or variable may be unsafe/deprecated
     )
     function(disable_msvc_warnings target_name)
-        target_compile_options(${target_name} PRIVATE ${MSVC_WARNING_FLAGS})
+        if(TARGET ${target_name})
+            target_compile_options(${target_name} PRIVATE ${MSVC_WARNING_FLAGS})
+        endif()
     endfunction()
 
     if (WHISPER_BUILD_EXAMPLES)
diff --git a/ggml/CMakeLists.txt b/ggml/CMakeLists.txt
index e632af010c7..b463cbd9b3c 100644
--- a/ggml/CMakeLists.txt
+++ b/ggml/CMakeLists.txt
@@ -368,10 +368,19 @@ if (MSVC)
         /wd4267  # Conversion from 'size_t' to a smaller type, possible loss of data
     )
     function(disable_msvc_warnings target_name)
-        target_compile_options(${target_name} PRIVATE ${MSVC_WARNING_FLAGS})
+        if(TARGET ${target_name})
+            target_compile_options(${target_name} PRIVATE ${MSVC_WARNING_FLAGS})
+        endif()
     endfunction()
 
     disable_msvc_warnings(ggml-base)
     disable_msvc_warnings(ggml)
     disable_msvc_warnings(ggml-cpu)
+    disable_msvc_warnings(ggml-cpu-x64)
+    disable_msvc_warnings(ggml-cpu-sse42)
+    disable_msvc_warnings(ggml-cpu-sandybridge)
+    disable_msvc_warnings(ggml-cpu-haswell)
+    disable_msvc_warnings(ggml-cpu-skylakex)
+    disable_msvc_warnings(ggml-cpu-icelake)
+    disable_msvc_warnings(ggml-cpu-alderlake)
 endif()