chore: Cmake fixes

Author: synesissoftware

CMakeLists.txt

@@ -5,7 +5,7 @@
 # Purpose:  Top-level CMake lists file for b64
 #
 # Created:  6th February 2024
-# Updated:  6th May 2025
+# Updated:  30th July 2026
 #
 # ######################################################################## #
 
@@ -46,16 +46,15 @@ string(REGEX MATCH "#${RX_WS}*define${RX_WS}+_?${RX_PROJ_TAG}_VER_MAJOR${RX_WS}+
 set(_VERSION_MAJOR ${CMAKE_MATCH_1})
 string(REGEX MATCH "#${RX_WS}*define${RX_WS}+_?${RX_PROJ_TAG}_VER_MINOR${RX_WS}+([0-9]+)" MINOR_DUMMY ${_header_file})
 set(_VERSION_MINOR ${CMAKE_MATCH_1})
-string(REGEX MATCH "#${RX_WS}*define${RX_WS}+_?${RX_PROJ_TAG}_VER_REVISION${RX_WS}+([0-9]+)" PATCH_DUMMY ${_header_file})
-set(_VERSION_PATCH ${CMAKE_MATCH_1})
+string(REGEX MATCH "#${RX_WS}*define${RX_WS}+_?${RX_PROJ_TAG}_VER_(PATCH|REVISION)${RX_WS}+([0-9]+)" PATCH_DUMMY ${_header_file})
+set(_VERSION_PATCH ${CMAKE_MATCH_2})
 
 # set project version number here
 set(PROJECT_VERSION_MAJOR ${_VERSION_MAJOR})
 set(PROJECT_VERSION_MINOR ${_VERSION_MINOR})
 set(PROJECT_VERSION_PATCH ${_VERSION_PATCH})
 set(PROJECT_VERSION "${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}.${PROJECT_VERSION_PATCH}")
 
-
 # adhere strictly to C and C++ standards plus extensions. These are actually
 # useless since we do not compile anything; they merely state our intention.
 set(CMAKE_C_STANDARD 17)
@@ -67,6 +66,11 @@ set(CMAKE_CXX_EXTENSIONS ON)
 
 if(MSVC)
 
+	if(MSVC_VERSION LESS 1800)
+
+		add_compile_options("/wd4996")
+	endif()
+
 	if(MSVC_VERSION LESS 1930)
 
 		set(CMAKE_C_STANDARD 90)
@@ -106,6 +110,7 @@ include(TargetMacros)
 
 option(BUILD_EXAMPLES "Build examples" ON)
 
+option(BUILD_TESTING "Build tests" ON)
 
 # ######################################
 # features

cmake/LanguageFullVersion.cmake

@@ -1,4 +1,31 @@
 
+# ################################################
+# X_CMAKE_C_FULLSTANDARD
+
+set(X_CMAKE_C_FULLSTANDARD 0)
+
+if(FALSE)
+elseif(CMAKE_C_STANDARD EQUAL 99)
+
+       set(X_CMAKE_C_FULLSTANDARD 1999)
+elseif(CMAKE_C_STANDARD EQUAL 90)
+
+       set(X_CMAKE_C_FULLSTANDARD 1990)
+elseif(CMAKE_C_STANDARD GREATER_EQUAL 23)
+
+       set(X_CMAKE_C_FULLSTANDARD 2023)
+elseif(CMAKE_C_STANDARD GREATER_EQUAL 17)
+
+       set(X_CMAKE_C_FULLSTANDARD 2017)
+elseif(CMAKE_C_STANDARD GREATER_EQUAL 11)
+
+       set(X_CMAKE_C_FULLSTANDARD 2011)
+else()
+
+       message(FATAL_ERROR "mechanism for discriminating X_CMAKE_C_FULLSTANDARD has failed")
+endif()
+
+
 # ################################################
 # X_CMAKE_CXX_FULLSTANDARD