cmake: Enable --warn-uninitialized inside string(CONFIGURE) and configure_file

Fixes: #18489

3 files changed, 69 insertions, 4 deletions

diff --git a/Tests/RunCMake/CommandLine/RunCMakeTest.cmake b/Tests/RunCMake/CommandLine/RunCMakeTest.cmake
index a37b7f1..4cd34de 100644
--- a/Tests/RunCMake/CommandLine/RunCMakeTest.cmake
+++ b/Tests/RunCMake/CommandLine/RunCMakeTest.cmake
@@ -350,7 +350,7 @@ set(RunCMake_TEST_OPTIONS --trace-expand --warn-uninitialized)
 run_cmake(trace-expand-warn-uninitialized)
 unset(RunCMake_TEST_OPTIONS)
 
-set(RunCMake_TEST_OPTIONS --warn-uninitialized)
+set(RunCMake_TEST_OPTIONS -Wno-deprecated --warn-uninitialized)
 run_cmake(warn-uninitialized)
 unset(RunCMake_TEST_OPTIONS)
 
diff --git a/Tests/RunCMake/CommandLine/warn-uninitialized-stderr.txt b/Tests/RunCMake/CommandLine/warn-uninitialized-stderr.txt
index a13402a..41ba098 100644
--- a/Tests/RunCMake/CommandLine/warn-uninitialized-stderr.txt
+++ b/Tests/RunCMake/CommandLine/warn-uninitialized-stderr.txt
@@ -1,5 +1,53 @@
-^CMake Warning \(dev\) at warn-uninitialized.cmake:1 \(set\):
-  uninitialized variable 'WARN_FROM_NORMAL_CMAKE_FILE'
+^CMake Warning \(dev\) at warn-uninitialized.cmake:3 \(set\):
+  uninitialized variable 'OLD_WARN_FROM_NORMAL_CMAKE_FILE_INSIDE_BRACES'
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
+This warning is for project developers.  Use -Wno-dev to suppress it.
+
+CMake Warning \(dev\) at warn-uninitialized.cmake:4 \(set\):
+  uninitialized variable 'OLD_WARN_FROM_NORMAL_CMAKE_FILE_IN_ATS'
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
+This warning is for project developers.  Use -Wno-dev to suppress it.
+
+CMake Warning \(dev\) at warn-uninitialized.cmake:5 \(string\):
+  uninitialized variable 'OLD_WARN_FROM_STRING_CONFIGURE_INSIDE_BRACES'
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
+This warning is for project developers.  Use -Wno-dev to suppress it.
+
+CMake Warning \(dev\) at warn-uninitialized.cmake:7 \(configure_file\):
+  uninitialized variable 'OLD_WARN_FROM_CONFIGURE_FILE_INSIDE_AT'
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
+This warning is for project developers.  Use -Wno-dev to suppress it.
+
+CMake Warning \(dev\) at warn-uninitialized.cmake:8 \(string\):
+  uninitialized variable 'OLD_WARN_FROM_STRING_CONFIGURE_INSIDE_AT'
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
+This warning is for project developers.  Use -Wno-dev to suppress it.
+
+CMake Warning \(dev\) at warn-uninitialized.cmake:13 \(set\):
+  uninitialized variable 'NEW_WARN_FROM_NORMAL_CMAKE_FILE_INSIDE_BRACES'
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
+This warning is for project developers.  Use -Wno-dev to suppress it.
+
+CMake Warning \(dev\) at warn-uninitialized.cmake:14 \(string\):
+  uninitialized variable 'NEW_WARN_FROM_STRING_CONFIGURE_INSIDE_BRACES'
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
+This warning is for project developers.  Use -Wno-dev to suppress it.
+
+CMake Warning \(dev\) at warn-uninitialized.cmake:16 \(configure_file\):
+  uninitialized variable 'NEW_WARN_FROM_CONFIGURE_FILE_INSIDE_AT'
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
+This warning is for project developers.  Use -Wno-dev to suppress it.
+
+CMake Warning \(dev\) at warn-uninitialized.cmake:17 \(string\):
+  uninitialized variable 'NEW_WARN_FROM_STRING_CONFIGURE_INSIDE_AT'
 Call Stack \(most recent call first\):
   CMakeLists.txt:3 \(include\)
 This warning is for project developers.  Use -Wno-dev to suppress it.$
diff --git a/Tests/RunCMake/CommandLine/warn-uninitialized.cmake b/Tests/RunCMake/CommandLine/warn-uninitialized.cmake
index f1a75c9..ff65c16 100644
--- a/Tests/RunCMake/CommandLine/warn-uninitialized.cmake
+++ b/Tests/RunCMake/CommandLine/warn-uninitialized.cmake
@@ -1 +1,18 @@
-set(FOO "${WARN_FROM_NORMAL_CMAKE_FILE}")
+cmake_policy(PUSH)
+cmake_policy(SET CMP0053 OLD)
+set(FOO "${OLD_WARN_FROM_NORMAL_CMAKE_FILE_INSIDE_BRACES}")
+set(FOO "@OLD_WARN_FROM_NORMAL_CMAKE_FILE_IN_ATS@")
+string(CONFIGURE "\${OLD_WARN_FROM_STRING_CONFIGURE_INSIDE_BRACES}" OUT1)
+file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/file1.in "\@OLD_WARN_FROM_CONFIGURE_FILE_INSIDE_AT\@")
+configure_file(${CMAKE_CURRENT_BINARY_DIR}/file1.in file1.out)
+string(CONFIGURE "\@OLD_WARN_FROM_STRING_CONFIGURE_INSIDE_AT\@" OUT2)
+cmake_policy(POP)
+
+cmake_policy(PUSH)
+cmake_policy(SET CMP0053 NEW)
+set(FOO "${NEW_WARN_FROM_NORMAL_CMAKE_FILE_INSIDE_BRACES}")
+string(CONFIGURE "\${NEW_WARN_FROM_STRING_CONFIGURE_INSIDE_BRACES}" OUT3)
+file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/file2.in "\@NEW_WARN_FROM_CONFIGURE_FILE_INSIDE_AT\@")
+configure_file(${CMAKE_CURRENT_BINARY_DIR}/file2.in file2.out)
+string(CONFIGURE "@NEW_WARN_FROM_STRING_CONFIGURE_INSIDE_AT@" OUT4)
+cmake_policy(POP)