win32: retire visual studio 2013 support

README.win32

@@ -41,7 +41,7 @@ additional software to run (other than what came with your operating
 system).  Currently, this port is capable of using one of the
 following compilers on the Intel x86 and x86_64 architectures:
 
-      Microsoft Visual C++    version 12.0 or later
+      Microsoft Visual C++    Visual C++ 2015 (version 14.0) or later
       Intel C++ Compiler      (experimental)
       Gcc by mingw.org        gcc version 3.4.5-5.3.0
       Gcc by mingw-w64.org    gcc version 4.4.3 or later
@@ -65,14 +65,8 @@ that are also supported by perl's makefile.
 =back
 
 The Microsoft Visual C++ compilers are also now being given away free. They
-are available as "Visual C++ 2013-2022 Community Edition" and are the same
-compilers that ship with "Visual C++ 2013-2022 Professional".
-
-Visual C++ 2013 is capable of B<targeting> XP and Windows Server 2003 but the
-build host requirement is Windows 7/Windows Server 2012. For more details see
-https://docs.microsoft.com/en-us/visualstudio/productinfo/vs2013-compatibility-vs
-and
-https://docs.microsoft.com/en-us/visualstudio/productinfo/vs2013-sysrequirements-vs
+are available as "Visual C++ 2015-2022 Community Edition" and are the same
+compilers that ship with "Visual C++ 2015-2022 Professional".
 
 The MinGW64 compiler is available at L<https://mingw-w64.org>.
 The latter is actually a cross-compiler targeting Win64. There's also a trimmed
@@ -129,23 +123,23 @@ console already set up for your target architecture (x86-32 or x86-64 or IA64).
 With the newer compilers, you may also use the older batch files if you choose
 so.
 
-=item Microsoft Visual C++ 2013-2022 Community Edition
+=item Microsoft Visual C++ 2015-2022 Community Edition
 
-These free versions of Visual C++ 2013-2022 Professional contain the same
+These free versions of Visual C++ 2015-2022 Professional contain the same
 compilers and linkers that ship with the full versions, and also contain
 everything necessary to build Perl.
 
 These packages can be downloaded from L<https://visualstudio.microsoft.com/>.
 
-Install Visual C++ 2013-2022 Community, then setup your environment
+Install Visual C++ 2015-2022 Community, then setup your environment
 using, e.g.
 
-F<C:\Program Files\Microsoft Visual Studio 12.0\Common7\Tools\vsvars32.bat>
+F<C:\Program Files\Microsoft Visual Studio 14.0\Common7\Tools\vsvars32.bat>
 
 (assuming the default installation location was chosen).
 
 Perl should now build using the F<win32/Makefile>.  You will need to edit that
-file to set C<CCTYPE> to one of C<MSVC120>-C<MSVC143> first.
+file to set C<CCTYPE> to one of C<MSVC140>-C<MSVC143> first.
 
 =item Microsoft C++ Build Tools
 
@@ -264,15 +258,6 @@ of the tests from the testsuite (many tests will be skipped).
 
 There should be no test failures.
 
-If you build with Visual C++ 2013 then three tests currently may fail with
-Daylight Saving Time related problems: F<t/io/fs.t>,
-F<cpan/HTTP-Tiny/t/110_mirror.t> and F<lib/File/Copy.t>. The failures are
-caused by bugs in the CRT in VC++ 2013 which are fixed in VC++2015 and
-later, as explained by Microsoft here:
-L<https://connect.microsoft.com/VisualStudio/feedback/details/811534/utime-sometimes-fails-to-set-the-correct-file-times-in-visual-c-2013>. In the meantime,
-if you need fixed C<stat> and C<utime> functions then have a look at the
-CPAN distribution Win32::UTCFileTime.
-
 If you build with Visual C++ 2015 or later then F<ext/XS-APItest/t/locale.t>
 may crash (after all its tests have passed). This is due to a regression in the
 Universal CRT introduced in the Windows 10 April 2018 Update, and will be fixed

win32/GNUmakefile

@@ -160,8 +160,6 @@ DEFAULT_INC_EXCLUDES_DOT := define
 #
 # uncomment exactly one of the following
 #
-# Visual C++ 2013 (aka Visual C++ 12.0) (full version or Express Edition)
-#CCTYPE		:= MSVC120
 # Visual C++ 2015 (aka Visual C++ 14.0) (full version or Express Edition)
 #CCTYPE		:= MSVC140
 # Visual C++ 2017 (aka Visual C++ 14.1) (full version or Community Edition)
@@ -386,8 +384,6 @@ endif
 ifeq ($(CCHOME),)
 ifeq ($(CCTYPE),GCC)
 CCHOME		:= C:\MinGW
-else ifeq ($(CCTYPE),MSVC120)
-CCHOME		:= $(VCINSTALLDIR)
 else ifeq ($(CCTYPE),MSVC140)
 CCHOME		:= $(VCINSTALLDIR)
 else
@@ -503,13 +499,7 @@ CCLIBDIR := $(CCHOME)\lib;$(CCHOME)\$(GCCTARGET)\lib;$(CCHOME)\lib\gcc\$(GCCTARG
 ARCHPREFIX :=
 else
 CCINCDIR := $(CCHOME)\include
-ifeq ($(CCTYPE),MSVC120)
-ifeq ($(WIN64),define)
-CCLIBDIR := $(CCHOME)\lib\amd64
-else
-CCLIBDIR := $(CCHOME)\lib
-endif
-else ifeq ($(CCTYPE),MSVC140)
+ifeq ($(CCTYPE),MSVC140)
 ifeq ($(WIN64),define)
 CCLIBDIR := $(CCHOME)\lib\amd64
 else
@@ -685,11 +675,7 @@ CXX_FLAG	+= -std:c++20
 endif
 EXTRACFLAGS	= -nologo -GF -W3
 
-ifeq ($(CCTYPE),MSVC120)
-LIBC		= msvcrt.lib
-else
 LIBC		= ucrt.lib
-endif
 
 ifeq ($(CFG),Debug)
 OPTIMIZE	= -Od -Zi
@@ -701,11 +687,7 @@ OPTIMIZE	= -Od -Zi
 LINK_DBG	= -debug
 EXTRACFLAGS	+= -MD
 else ifeq ($(CFG),DebugFull)
-ifeq ($(CCTYPE),MSVC120)
-LIBC		= msvcrtd.lib
-else
 LIBC		= ucrtd.lib
-endif
 OPTIMIZE	= -Od -Zi
 LINK_DBG	= -debug
 DEFINES		+= -D_DEBUG -DDEBUGGING
@@ -734,25 +716,20 @@ endif
 
 # For now, silence warnings about "unsafe" CRT functions
 # and POSIX CRT function names being deprecated.
-DEFINES		+= -D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE
-
-# Likewise for deprecated Winsock APIs in VC++ 14.0 onwards for now.
-ifneq ($(CCTYPE),MSVC120)
-DEFINES		+= -D_WINSOCK_DEPRECATED_NO_WARNINGS
-endif
+# Likewise for deprecated Winsock APIs
+DEFINES         += -D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE \
+                   -D_WINSOCK_DEPRECATED_NO_WARNINGS
 
 LIBBASEFILES	= oldnames.lib kernel32.lib user32.lib gdi32.lib winspool.lib \
 	comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib \
 	netapi32.lib uuid.lib ws2_32.lib mpr.lib winmm.lib version.lib \
 	odbc32.lib odbccp32.lib comctl32.lib
 
-ifneq ($(CCTYPE),MSVC120)
 ifeq ($(CFG),DebugFull)
 LIBBASEFILES	+= msvcrtd.lib vcruntimed.lib
 else
 LIBBASEFILES	+= msvcrt.lib vcruntime.lib
 endif
-endif
 
 # Avoid __intel_new_proc_init link error for libircmt.
 # libmmd is /MD equivalent, other variants exist.
@@ -1302,7 +1279,6 @@ $(MINIDIR)\.exists : $(CFGH_TMPL)
 	echo #undef I_QUADMATH&& \
 	echo #undef USE_QUADMATH&& \
 	echo #undef USE_CPLUSPLUS)>> $(MINI_CONFIG_H)
-ifneq ($(CCTYPE),MSVC120)
 	@(echo #undef FILE_ptr&& \
 	echo #undef FILE_cnt&& \
 	echo #undef FILE_base&& \
@@ -1312,7 +1288,6 @@ ifneq ($(CCTYPE),MSVC120)
 	echo #define FILE_base^(fp^) PERLIO_FILE_base^(fp^)&& \
 	echo #define FILE_bufsiz^(fp^) ^(PERLIO_FILE_cnt^(fp^) + PERLIO_FILE_ptr^(fp^) - PERLIO_FILE_base^(fp^)^)&& \
 	echo #define I_STDBOOL)>> $(MINI_CONFIG_H)
-endif
 ifeq ($(WIN64),define)
 ifeq ($(CCTYPE),GCC)
 	@(echo #define LONG_DOUBLESIZE ^16)>> $(MINI_CONFIG_H)

win32/Makefile

@@ -102,8 +102,6 @@ DEFAULT_INC_EXCLUDES_DOT = define
 #
 # uncomment exactly one of the following
 #
-# Visual C++ 2013 (aka Visual C++ 12.0) (full version or Express Edition)
-#CCTYPE		= MSVC120
 # Visual C++ 2015 (aka Visual C++ 14.0) (full version or Express Edition)
 #CCTYPE		= MSVC140
 # Visual C++ 2017 (aka Visual C++ 14.1) (full version or Community Edition)
@@ -193,7 +191,7 @@ DEFAULT_INC_EXCLUDES_DOT = define
 # Versions of Visual C++ up to VC++ 14.0 define $(VCINSTALLDIR), but from
 # VC++ 14.1 we need the subfolder given by $(VCToolsInstallDir).
 #
-!IF "$(CCTYPE)" == "MSVC120" || "$(CCTYPE)" == "MSVC140"
+!IF "$(CCTYPE)" == "MSVC140"
 CCHOME		= $(VCINSTALLDIR)
 !ELSE
 CCHOME		= $(VCTOOLSINSTALLDIR)
@@ -371,7 +369,7 @@ MINIDELAYLOAD	= -DELAYLOAD:advapi32.dll
 # Set the install location of the compiler headers/libraries.
 # These are saved into $Config{incpath} and $Config{libpth}.
 CCINCDIR	= $(CCHOME)\include
-!IF "$(CCTYPE)" == "MSVC120" || "$(CCTYPE)" == "MSVC140"
+!IF "$(CCTYPE)" == "MSVC140"
 !  IF "$(WIN64)" == "define"
 CCLIBDIR	= $(CCHOME)\lib\amd64
 !  ELSE
@@ -438,11 +436,7 @@ CXX_FLAG	= $(CXX_FLAG) -std:c++20
 !ENDIF
 EXTRACFLAGS	= -nologo -GF -W3
 
-!IF "$(CCTYPE)" == "MSVC120"
-LIBC		= msvcrt.lib
-!ELSE
 LIBC		= ucrt.lib
-!ENDIF
 
 !IF  "$(CFG)" == "Debug"
 OPTIMIZE	= -Od -Zi
@@ -454,11 +448,7 @@ OPTIMIZE	= -Od -Zi
 LINK_DBG	= -debug
 EXTRACFLAGS	= $(EXTRACFLAGS) -MD
 !ELSEIF  "$(CFG)" == "DebugFull"
-!  IF "$(CCTYPE)" == "MSVC120"
-LIBC		= msvcrtd.lib
-!  ELSE
 LIBC		= ucrtd.lib
-!  ENDIF
 OPTIMIZE	= -Od -Zi
 LINK_DBG	= -debug
 DEFINES		= $(DEFINES) -D_DEBUG -DDEBUGGING
@@ -486,25 +476,20 @@ OPTIMIZE	= $(OPTIMIZE) -fp:precise
 
 # For now, silence warnings about "unsafe" CRT functions
 # and POSIX CRT function names being deprecated.
-DEFINES		= $(DEFINES) -D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE
-
-# Likewise for deprecated Winsock APIs in VC++ 14.0 onwards for now.
-!IF "$(CCTYPE)" != "MSVC120"
-DEFINES		= $(DEFINES) -D_WINSOCK_DEPRECATED_NO_WARNINGS
-!ENDIF
+# Likewise for deprecated Winsock APIs
+DEFINES		= $(DEFINES) -D_CRT_SECURE_NO_DEPRECATE \
+                  -D_CRT_NONSTDC_NO_DEPRECATE -D_WINSOCK_DEPRECATED_NO_WARNINGS
 
 LIBBASEFILES	= \
 		oldnames.lib kernel32.lib user32.lib gdi32.lib winspool.lib \
 		comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib \
 		netapi32.lib uuid.lib ws2_32.lib mpr.lib winmm.lib \
 		version.lib odbc32.lib odbccp32.lib comctl32.lib
 
-!IF "$(CCTYPE)" != "MSVC120"
-!  IF  "$(CFG)" == "DebugFull"
+!IF  "$(CFG)" == "DebugFull"
 LIBBASEFILES	= $(LIBBASEFILES) msvcrtd.lib vcruntimed.lib
-!  ELSE
+!ELSE
 LIBBASEFILES	= $(LIBBASEFILES) msvcrt.lib vcruntime.lib
-!  ENDIF
 !ENDIF
 
 # Avoid __intel_new_proc_init link error for libircmt.
@@ -963,7 +948,6 @@ $(MINIDIR)\.exists : $(CFGH_TMPL)
 	echo #undef USE_64_BIT_INT&& \
 	echo #undef USE_LONG_DOUBLE&& \
 	echo #undef USE_CPLUSPLUS)>> $(MINI_CONFIG_H)
-!IF "$(CCTYPE)" != "MSVC120"
 	@(echo #undef FILE_ptr&& \
 	echo #undef FILE_cnt&& \
 	echo #undef FILE_base&& \
@@ -973,7 +957,6 @@ $(MINIDIR)\.exists : $(CFGH_TMPL)
 	echo #define FILE_base^(fp^) PERLIO_FILE_base^(fp^)&& \
 	echo #define FILE_bufsiz^(fp^) ^(PERLIO_FILE_cnt^(fp^) + PERLIO_FILE_ptr^(fp^) - PERLIO_FILE_base^(fp^)^)&& \
 	echo #define I_STDBOOL)>> $(MINI_CONFIG_H)
-!ENDIF
 !IF "$(WIN64)"=="define"
 	@(echo #define PTRSIZE ^8&& \
 	echo #define SSize_t $(INT64)&& \