Fix build with ms VS2017+

Use [vswhere](https://github.com/microsoft/vswhere) that comes with Visual Studio 2017 version 15.2 and later to detect location of VS to be used for building cccc

Author: pps83

build_w32vc.bat

@@ -1,38 +1,51 @@
 @rem build_w32vc.bat
 @echo off
+setlocal enabledelayedexpansion
 
+if not exist "%ProgramFiles(x86)%\Microsoft Visual Studio\Installer\vswhere.exe" goto no_vswhere
+for /f "usebackq tokens=*" %%i in (`"%ProgramFiles(x86)%\Microsoft Visual Studio\Installer\vswhere.exe" -latest -prerelease -products * -requires Microsoft.VisualStudio.Component.VC.Tools.x86.x64 -property installationPath`) do (
+  set InstallDir=%%i
+)
+if not exist "%InstallDir%\Common7\Tools\vsdevcmd.bat" goto no_vswhere
+call "%InstallDir%\Common7\Tools\vsdevcmd.bat" %*
+goto have_vc
+
+:no_vswhere
 rem This file builds and tests CCCC under Microsoft Visual Studio.
 rem Path to Microsoft Visual Studio standard edition release 6.0
 set VCDIR=c:\Program Files\Microsoft Visual Studio\vc98
 if not exist "%VCDIR%\bin\vcvars32.bat" goto no_vc
 
 call "%VCDIR%\bin\vcvars32.bat"
+:have_vc
 if not exist pccts\bin mkdir pccts\bin
 
 cd pccts\dlg
 if exist *.obj del *.obj
-nmake -f DlgMS.mak
+nmake -nologo -f DlgMS.mak
 copy dlg.exe ..\bin
 cd ..\..
 
 cd pccts\antlr
 if exist *.obj del *.obj
-nmake -f AntlrMS.mak
+nmake -nologo -f AntlrMS.mak
 copy antlr.exe ..\bin
 cd ..\..
 
 cd cccc
 if exist *.obj del *.obj
 if exist *.cpp del *.cpp
-nmake -f w32vc.mak
+nmake -nologo -f w32vc.mak
 cd ..
 
 cd test
-nmake -f w32vc.mak
+nmake -nologo -f w32vc.mak
 cd ..
 
+rem vswhere is a vs2017+ thing, ancient vcaddin won't compile.
+if exist "%ProgramFiles(x86)%\Microsoft Visual Studio\Installer\vswhere.exe" goto end
 cd vcaddin
-nmake -f CcccDevStudioAddIn.mak CFG="CcccDevStudioAddIn - Win32 Release"
+nmake -nologo -f CcccDevStudioAddIn.mak CFG="CcccDevStudioAddIn - Win32 Release"
 cd ..
 
 
@@ -45,9 +58,5 @@ echo Please modify the script if the location is different.
 
 
 :end
-
-
-
-
-
-
+rem show "Press any key to continue" if build_w32vc.bat was run from exlorer
+IF %0 == "%~0" pause

cccc/w32vc.mak

@@ -14,7 +14,7 @@ LDFLAGS_DEBUG=-Zi
 PATHSEP=\\
 CCC=cl.exe -nologo
 LD=cl.exe -nologo
-CFLAGS=-c -I$(PCCTS_H) $(CFLAGS_DEBUG) -GX -TP -DCCCC_CONF_W32VC
+CCC_OPTS=-c -I$(PCCTS_H) $(CFLAGS_DEBUG) -GX -TP -D_CRT_SECURE_NO_WARNINGS -DCCCC_CONF_W32VC
 C_OFLAG=-Fo
 LDFLAGS=$(LDFLAGS_DEBUG) 
 LD_OFLAG=-Fe

pccts/antlr/AntlrMS.mak

@@ -10,9 +10,9 @@ SET=$(PCCTS_HOME)\support\set
 
 
 # Compiler stuff
-CC = cl
+CC = cl -nologo
 CFLAGS = -I "." -I "$(PCCTS_H)" -I "$(SET)" -D "USER_ZZSYN" -D "PC" \
-        -D "ZZLEXBUFSIZE=65536"  /D "LONGFILENAMES" /W3
+        -D "ZZLEXBUFSIZE=65536" -D_CRT_SECURE_NO_WARNINGS /D "LONGFILENAMES" /W3
 
 ANTLR_OBJS = antlr.obj scan.obj err.obj bits.obj build.obj fset2.obj \
             fset.obj gen.obj globals.obj hash.obj lex.obj main.obj \

pccts/dlg/DlgMS.mak

@@ -9,9 +9,9 @@ SET=$(PCCTS_HOME)\support\set
 
 
 # Compiler stuff
-CC = cl
+CC = cl -nologo
 CFLAGS = -I "." -I "$(PCCTS_H)" -I "$(SET)" -D "USER_ZZSYN" -D "PC" \
-        -D "ZZLEXBUFSIZE=65536"  /D "LONGFILENAMES" /W3 
+        -D "ZZLEXBUFSIZE=65536" -D_CRT_SECURE_NO_WARNINGS /D "LONGFILENAMES" /W3 
 
 DLG_OBJS = dlg_p.obj dlg_a.obj main.obj err.obj support.obj \
            output.obj relabel.obj automata.obj