CheckCompilerFlag: Avoid matching parts of multiple messages

Diagnostic messages for unsupported flags appear on a single line.
Do not accidentally match unrelated messages across multiple lines.

Fixes: #27156

Modules/CMakeCheckCompilerFlagCommonPatterns.cmake

@@ -8,24 +8,24 @@
 
 macro (CHECK_COMPILER_FLAG_COMMON_PATTERNS _VAR)
   set(${_VAR}
-    FAIL_REGEX "[Uu]nrecogni[sz]ed .*option"                                 # GNU, NAG, Fujitsu
-    FAIL_REGEX "switch .* is no longer supported"                            # GNU
-    FAIL_REGEX "unknown .*option"                                            # Clang
-    FAIL_REGEX "optimization flag .* not supported"                          # Clang
+    FAIL_REGEX "[Uu]nrecogni[sz]ed [^\n]*option"                             # GNU, NAG, Fujitsu
+    FAIL_REGEX "switch [^\n]* is no longer supported"                        # GNU
+    FAIL_REGEX "unknown [^\n]*option"                                        # Clang
+    FAIL_REGEX "optimization flag [^\n]* not supported"                      # Clang
     FAIL_REGEX "unknown argument ignored"                                    # Clang (cl)
     FAIL_REGEX "ignoring unknown option"                                     # MSVC, Intel
     FAIL_REGEX "warning D9002"                                               # MSVC, any lang
-    FAIL_REGEX "option.*not supported"                                       # Intel
-    FAIL_REGEX "invalid argument .*option"                                   # Intel
-    FAIL_REGEX "ignoring option .*argument required"                         # Intel
-    FAIL_REGEX "ignoring option .*argument is of wrong type"                 # Intel
+    FAIL_REGEX "option[^\n]*not supported"                                   # Intel
+    FAIL_REGEX "invalid argument [^\n]*option"                               # Intel
+    FAIL_REGEX "ignoring option [^\n]*argument required"                     # Intel
+    FAIL_REGEX "ignoring option [^\n]*argument is of wrong type"             # Intel
     # noqa: spellcheck off
     FAIL_REGEX "[Uu]nknown option"                                           # HP
     # noqa: spellcheck on
     FAIL_REGEX "[Ww]arning: [Oo]ption"                                       # SunPro
-    FAIL_REGEX "command option .* is not recognized"                         # XL
-    FAIL_REGEX "command option .* contains an incorrect subargument"         # XL
-    FAIL_REGEX "Option .* is not recognized.  Option will be ignored."       # XL
+    FAIL_REGEX "command option [^\n]* is not recognized"                     # XL
+    FAIL_REGEX "command option [^\n]* contains an incorrect subargument"     # XL
+    FAIL_REGEX "Option [^\n]* is not recognized.  Option will be ignored."   # XL
     FAIL_REGEX "not supported in this configuration. ignored"                # AIX
     FAIL_REGEX "File with unknown suffix passed to linker"                   # PGI
     # noqa: spellcheck off
@@ -35,7 +35,7 @@ macro (CHECK_COMPILER_FLAG_COMMON_PATTERNS _VAR)
     FAIL_REGEX "Incorrect command line option:"                              # Borland
     FAIL_REGEX "Warning: illegal option"                                     # SunStudio 12
     FAIL_REGEX "[Ww]arning: Invalid suboption"                               # Fujitsu
-    FAIL_REGEX "An invalid option .* appears on the command line"            # Cray
+    FAIL_REGEX "An invalid option [^\n]* appears on the command line"        # Cray
     FAIL_REGEX "WARNING: invalid compiler option"                            # TI armcl
   )
 endmacro ()

Modules/Internal/CheckFlagCommonConfig.cmake

@@ -12,31 +12,31 @@ macro(CMAKE_CHECK_FLAG_COMMON_INIT _FUNC _LANG _SRC _PATTERNS)
   if("${_LANG}" STREQUAL "C")
     set(${_SRC} "int main(void) { return 0; }")
     set(${_PATTERNS}
-      FAIL_REGEX "command[ -]line option .* is valid for .* but not for C"
-      FAIL_REGEX "-Werror=.* argument .* is not valid for C"
+      FAIL_REGEX "command[ -]line option [^\n]* is valid for [^\n]* but not for C"
+      FAIL_REGEX "-Werror=[^\n]* argument [^\n]* is not valid for C"
     )
   elseif("${_LANG}" STREQUAL "CXX")
     set(${_SRC} "int main() { return 0; }")
     set(${_PATTERNS}
-      FAIL_REGEX "command[ -]line option .* is valid for .* but not for C\\+\\+"
-      FAIL_REGEX "-Werror=.* argument .* is not valid for C\\+\\+"
+      FAIL_REGEX "command[ -]line option [^\n]* is valid for [^\n]* but not for C\\+\\+"
+      FAIL_REGEX "-Werror=[^\n]* argument [^\n]* is not valid for C\\+\\+"
     )
   elseif("${_LANG}" STREQUAL "CUDA")
     set(${_SRC} "__host__ int main() { return 0; }")
     set(${_PATTERNS}
-      FAIL_REGEX "command[ -]line option .* is valid for .* but not for C\\+\\+" # Host GNU
-      FAIL_REGEX "argument unused during compilation: .*" # Clang
+      FAIL_REGEX "command[ -]line option [^\n]* is valid for [^\n]* but not for C\\+\\+" # Host GNU
+      FAIL_REGEX "argument unused during compilation: [^\n]*" # Clang
     )
   elseif("${_LANG}" STREQUAL "Fortran")
     set(${_SRC} "       program test\n       stop\n       end program")
     set(${_PATTERNS}
-      FAIL_REGEX "command[ -]line option .* is valid for .* but not for Fortran"
-      FAIL_REGEX "argument unused during compilation: .*" # LLVMFlang
+      FAIL_REGEX "command[ -]line option [^\n]* is valid for [^\n]* but not for Fortran"
+      FAIL_REGEX "argument unused during compilation: [^\n]*" # LLVMFlang
     )
   elseif("${_LANG}" STREQUAL "HIP")
     set(${_SRC} "__host__ int main() { return 0; }")
     set(${_PATTERNS}
-      FAIL_REGEX "argument unused during compilation: .*" # Clang
+      FAIL_REGEX "argument unused during compilation: [^\n]*" # Clang
     )
   elseif("${_LANG}" STREQUAL "OBJC")
     set(${_SRC} [=[
@@ -45,8 +45,8 @@ macro(CMAKE_CHECK_FLAG_COMMON_INIT _FUNC _LANG _SRC _PATTERNS)
       #endif
       int main(void) { return 0; }]=])
     set(${_PATTERNS}
-      FAIL_REGEX "command[ -]line option .* is valid for .* but not for Objective-C" # GNU
-      FAIL_REGEX "argument unused during compilation: .*" # Clang
+      FAIL_REGEX "command[ -]line option [^\n]* is valid for [^\n]* but not for Objective-C" # GNU
+      FAIL_REGEX "argument unused during compilation: [^\n]*" # Clang
     )
   elseif("${_LANG}" STREQUAL "OBJCXX")
     set(${_SRC} [=[
@@ -55,8 +55,8 @@ macro(CMAKE_CHECK_FLAG_COMMON_INIT _FUNC _LANG _SRC _PATTERNS)
       #endif
       int main(void) { return 0; }]=])
     set(${_PATTERNS}
-      FAIL_REGEX "command[ -]line option .* is valid for .* but not for Objective-C\\+\\+" # GNU
-      FAIL_REGEX "argument unused during compilation: .*" # Clang
+      FAIL_REGEX "command[ -]line option [^\n]* is valid for [^\n]* but not for Objective-C\\+\\+" # GNU
+      FAIL_REGEX "argument unused during compilation: [^\n]*" # Clang
     )
   elseif("${_LANG}" STREQUAL "ISPC")
     set(${_SRC} "float func(uniform int32, float a) { return a / 2.25; }")

Modules/Internal/CheckLinkerFlag.cmake

@@ -27,7 +27,7 @@ function(CMAKE_CHECK_LINKER_FLAG _lang _flag _var)
   foreach(flag IN LISTS _flag)
     string(REGEX REPLACE "([][+.*?()^$])" [[\\\1]] _flag_regex "${flag}")
     list(APPEND _common_patterns
-      FAIL_REGEX "warning: .*${_flag_regex}.* ignored"
+      FAIL_REGEX "warning: [^\n]*${_flag_regex}[^\n]* ignored"
       )
   endforeach()