Win32: simplified and improved handling of MSVC versions.

Now we always set NGX_CC_NAME to "msvc", and additionally test compiler
version as reported by "cl" in auto/cc/msvc (the same version is also
available via the _MSC_VER define).  In particular, this approach allows
to properly check for C99 variadic macros support, which previously was
not used with MSVC versions not explicitly recognized.

Now unneeded wildcards in NGX_CC_NAME tests for msvc removed accordingly,
as well as unused wildcards for owc and icc.

auto/cc/msvc

@@ -3,9 +3,24 @@
 # Copyright (C) Nginx, Inc.
 
 
-# MSVC 6.0 SP2
+# MSVC 6.0 SP2                            cl 12.00
-# MSVC Toolkit 2003 (7.1)
+# MSVC Toolkit 2003 (7.1)                 cl 13.10
-# MSVC 2005 Express Edition SP1 (8.0)
+# MSVC 2005 Express Edition SP1 (8.0)     cl 14.00
+# MSVC 2008 Express Edition (9.0)         cl 15.00
+# MSVC 2010 (10.0)                        cl 16.00
+# MSVC 2015 (14.0)                        cl 19.00
+
+
+NGX_MSVC_VER=`$NGX_WINE $CC 2>&1 | grep 'Compiler Version' 2>&1 \
+                                 | sed -e 's/^.* Version \(.*\)/\1/'`
+
+echo " + cl version: $NGX_MSVC_VER"
+
+have=NGX_COMPILER value="\"cl $NGX_MSVC_VER\"" . auto/define
+
+
+ngx_msvc_ver=`echo $NGX_MSVC_VER | sed -e 's/^\([0-9]*\).*/\1/'`
+
 
 # optimizations
 
@@ -90,16 +105,16 @@ CORE_LIBS="$CORE_LIBS kernel32.lib user32.lib"
 #CORE_LINK="$CORE_LINK -subsystem:windows -entry:mainCRTStartup"
 
 # debug
-# msvc8 under Wine issues
+# msvc under Wine issues
-#     Program database manager mismatch; please check your installation
+# C1902: Program database manager mismatch; please check your installation
-if [ $NGX_CC_NAME != msvc8 ]; then
+if [ -z "$NGX_WINE" ]; then
    CFLAGS="$CFLAGS -Zi"
    CORE_LINK="$CORE_LINK -debug"
 fi
 
 
 # MSVC 2005 supports C99 variadic macros
-if [ $NGX_CC_NAME = msvc8 ]; then
+if [ "$ngx_msvc_ver" -ge 14 ]; then
     have=NGX_HAVE_C99_VARIADIC_MACROS . auto/have
 fi
 

auto/cc/name

@@ -25,31 +25,8 @@ fi
 
 
 if [ "$CC" = cl ]; then
-    if `$NGX_WINE $CC -v 2>&1 \
-        | grep '^Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 16' \
-        >/dev/null 2>&1`; then
-
-        NGX_CC_NAME=msvc10
-        echo " + using Microsoft Visual C++ 10 compiler"
-
-    elif `$NGX_WINE $CC -v 2>&1 \
-        | grep '^Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 14' \
-        >/dev/null 2>&1`; then
-
-        NGX_CC_NAME=msvc8
-        echo " + using Microsoft Visual C++ 8 compiler"
-
-    elif `$NGX_WINE $CC -v 2>&1 \
-        | grep '^Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 13' \
-        >/dev/null 2>&1`; then
-
-        NGX_CC_NAME=msvc7
-        echo " + using Microsoft Visual C++ 7 compiler"
-
-    else
     NGX_CC_NAME=msvc
     echo " + using Microsoft Visual C++ compiler"
-    fi
 
 elif [ "$CC" = wcl386 ]; then
     NGX_CC_NAME=owc

auto/lib/md5/conf

@@ -20,12 +20,12 @@ if [ $MD5 != NONE ]; then
 
     case "$NGX_CC_NAME" in
 
-        msvc* | owc* | bcc)
+        msvc | owc | bcc)
             LINK_DEPS="$LINK_DEPS $MD5/md5.lib"
             CORE_LIBS="$CORE_LIBS $MD5/md5.lib"
         ;;
 
-        icc*)
+        icc)
             LINK_DEPS="$LINK_DEPS $MD5/libmd5.a"
 
             # to allow -ipo optimization we link with the *.o but not library

auto/lib/md5/make

@@ -5,13 +5,13 @@
 
 case "$NGX_CC_NAME" in
 
-    msvc*)
+    msvc)
         ngx_makefile=makefile.msvc
         ngx_opt="CPU_OPT=\"$CPU_OPT\" LIBC=$LIBC MD5_ASM=$MD5_ASM"
         ngx_md5="MD5=\"$MD5\""
     ;;
 
-    owc*)
+    owc)
         ngx_makefile=makefile.owc
         ngx_opt="CPU_OPT=\"$CPU_OPT\""
         ngx_md5=`echo MD5=\"$MD5\" | sed -e "s/\//$ngx_regex_dirsep/g"`

auto/lib/pcre/conf

@@ -8,7 +8,7 @@ if [ $PCRE != NONE ]; then
 
     case "$NGX_CC_NAME" in
 
-        msvc* | owc* | bcc)
+        msvc | owc | bcc)
             have=NGX_PCRE . auto/have
             have=PCRE_STATIC . auto/have
             CORE_DEPS="$CORE_DEPS $PCRE/pcre.h"
@@ -16,7 +16,7 @@ if [ $PCRE != NONE ]; then
             CORE_LIBS="$CORE_LIBS $PCRE/pcre.lib"
         ;;
 
-        icc* )
+        icc)
             have=NGX_PCRE . auto/have
             CORE_DEPS="$CORE_DEPS $PCRE/pcre.h"
 

auto/lib/pcre/make

@@ -5,13 +5,13 @@
 
 case "$NGX_CC_NAME" in
 
-    msvc*)
+    msvc)
         ngx_makefile=makefile.msvc
         ngx_opt="CPU_OPT=\"$CPU_OPT\" LIBC=$LIBC"
         ngx_pcre="PCRE=\"$PCRE\""
     ;;
 
-    owc*)
+    owc)
         ngx_makefile=makefile.owc
         ngx_opt="CPU_OPT=\"$CPU_OPT\""
         ngx_pcre=`echo PCRE=\"$PCRE\" | sed -e "s/\//$ngx_regex_dirsep/g"`

auto/lib/sha1/conf

@@ -10,12 +10,12 @@ if [ $SHA1 != NONE ]; then
 
     case "$NGX_CC_NAME" in
 
-        msvc* | owc* | bcc)
+        msvc | owc | bcc)
             LINK_DEPS="$LINK_DEPS $SHA1/sha1.lib"
             CORE_LIBS="$CORE_LIBS $SHA1/sha1.lib"
         ;;
 
-        icc*)
+        icc)
             LINK_DEPS="$LINK_DEPS $SHA1/libsha.a"
 
             # to allow -ipo optimization we link with the *.o but not library

auto/lib/sha1/make

@@ -5,13 +5,13 @@
 
 case "$NGX_CC_NAME" in
 
-    msvc*)
+    msvc)
         ngx_makefile=makefile.msvc
         ngx_opt="CPU_OPT=\"$CPU_OPT\" LIBC=$LIBC SHA1_ASM=$SHA1_ASM"
         ngx_sha1="SHA1=\"$SHA1\""
     ;;
 
-    owc*)
+    owc)
         ngx_makefile=makefile.owc
         ngx_opt="CPU_OPT=\"$CPU_OPT\""
         ngx_sha1=`echo SHA1=\"$SHA1\" | sed -e "s/\//$ngx_regex_dirsep/g"`

auto/lib/zlib/conf

@@ -8,13 +8,13 @@ if [ $ZLIB != NONE ]; then
 
     case "$NGX_CC_NAME" in
 
-        msvc* | owc* | bcc)
+        msvc | owc | bcc)
             have=NGX_ZLIB . auto/have
             LINK_DEPS="$LINK_DEPS $ZLIB/zlib.lib"
             CORE_LIBS="$CORE_LIBS $ZLIB/zlib.lib"
         ;;
 
-        icc*)
+        icc)
             have=NGX_ZLIB . auto/have
             LINK_DEPS="$LINK_DEPS $ZLIB/libz.a"
 

auto/lib/zlib/make

@@ -5,14 +5,14 @@
 
 case "$NGX_CC_NAME" in
 
-    msvc*)
+    msvc)
         ngx_makefile=makefile.msvc
         ngx_opt="CPU_OPT=\"$CPU_OPT\" LIBC=$LIBC"
         ngx_zlib="ZLIB=\"$ZLIB\""
 
     ;;
 
-    owc*)
+    owc)
         ngx_makefile=makefile.owc
         ngx_opt="CPU_OPT=\"$CPU_OPT\""
         ngx_zlib=`echo ZLIB=\"$ZLIB\" | sed -e "s/\//$ngx_regex_dirsep/g"`