GNU linker: Use single-argument form of --dependency-file flag
The GNU `ld(1)` manual documents the `--dependency-file=depfile`
single-argument form of the flag. Prefer it over the multi-argument
`--dependency-file depfile` form so that only one argument needs to be
passed through the compiler driver by `-Wl,` or equivalent. This may
improve diagnostics in cases where it is unsupported, making them easier
to diagnose.
Issue: #26483
diff --git a/Modules/Linker/GNU.cmake b/Modules/Linker/GNU.cmake
index ca3457a..978ac12 100644
--- a/Modules/Linker/GNU.cmake
+++ b/Modules/Linker/GNU.cmake
@@ -11,7 +11,7 @@
function(__linker_gnu lang)
# define flags for linker depfile generation
- set(CMAKE_${lang}_LINKER_DEPFILE_FLAGS "LINKER:--dependency-file,<DEP_FILE>")
+ set(CMAKE_${lang}_LINKER_DEPFILE_FLAGS "LINKER:--dependency-file=<DEP_FILE>")
set(CMAKE_${lang}_LINKER_DEPFILE_FORMAT gcc)
if(NOT CMAKE_EXECUTABLE_FORMAT STREQUAL "ELF")
