Produce buildinf.h on Windows the same way as on Unix

Because ENGINESDIR and OPENSSLDIR typically contains backslashes, they
need to be escaped just right.
Reviewed-by: NRich Salz <rsalz@openssl.org>

Configure

@@ -1793,18 +1793,6 @@ my %builders = (
         # The only reason we do this is to have something to build MINFO from
         build_Makefile();
 
-	open (OUT,">crypto/buildinf.h") || die "Can't open buildinf.h";
-	printf OUT <<"EOF";
-#ifndef MK1MF_BUILD
-  /* auto-generated by Configure for crypto/cversion.c:
-   * for Unix builds, crypto/Makefile.ssl generates functional definitions;
-   * Windows builds (and other mk1mf builds) compile cversion.c with
-   * -DMK1MF_BUILD and use definitions added to this file by util/mk1mf.pl. */
-  #error "Windows builds (PLATFORM=$target) use mk1mf.pl-created Makefiles"
-#endif
-EOF
-	close(OUT);
-
 	# create the ms/version32.rc file if needed
 	if ($platform ne "netware") {
 	    my ($v1, $v2, $v3, $v4);

util/check-buildinfo.pl

+#! /usr/bin/perl
+
+my %MINFO_source = ();
+
+open my $minfo, "MINFO" or die "Couldn't open MINFO: $!\n";
+my $reldir = "";
+my $searchterm = "";
+my $goal = "";
+while (<$minfo>) {
+    chomp;
+
+    if (/^RELATIVE_DIRECTORY=(.*)$/) {
+        $reldir=$1;
+        next;
+    }
+
+    if (/^LIBSRC=(.*)$/) {
+        my @src = sort split(/\s+/, $1);
+        if ($reldir =~ m|^crypto(/.*)?$|) {
+            $MINFO_source{"libcrypto|$reldir"} = [ @src ];
+        } elsif ($reldir eq "ssl") {
+            $MINFO_source{"libssl|$reldir"} = [ @src ];
+        } elsif ($reldir ne "engines") {
+            warn "LIBSRC found in MINFO for $reldir";
+        }
+        next;
+    }
+
+    if (/^(?:TEST)?LIBNAMES=(.*)$/) {
+        my @names = sort split(/\s+/, $1);
+        if ($reldir eq "engines") {
+            push @{$MINFO_source{"engines|$reldir"}}, @names;
+        } else {
+            warn "(TEST)?LIBNAMES found in MINFO for $reldir";
+        }
+        next;
+    }
+    
+    } elsif ($reldir eq "apps") {
+        $searchterm = "EXE_SRC";
+        $goal = "apps|openssl";
+    } elsif ($reldir eq "engines") {
+        $searchterm = "

util/mk1mf.pl

@@ -52,6 +52,7 @@ my %mf_import = (
 	PLATFORM       => \$mf_platform,
 	CC             => \$mf_cc,
 	CFLAG	       => \$mf_cflag,
+	CFLAG_Q	       => \$mf_cflag_q,
         DEPFLAG        => \$mf_depflag,
 	CPUID_OBJ      => \$mf_cpuid_asm,
 	BN_ASM	       => \$mf_bn_asm,
@@ -616,6 +617,15 @@ EOF
 
 my $asm_def = $orig_platform eq 'copy' ? "" : "ASM=$bin_dir$asm";
 
+$cflags =~ s/\((ENGINESDIR|OPENSSLDIR)\)/\(${1}_QQ\)/g;
+(my $cflags_q = $cflags) =~ s/([\\"])/\\$1/g;
+(my $INSTALLTOP_Q = $INSTALLTOP) =~ s/([\\"])/\\$1/g;
+(my $INSTALLTOP_QQ = $INSTALLTOP_Q) =~ s/\\/\\\\/g;
+(my $OPENSSLDIR_Q = $OPENSSLDIR) =~ s/([\\"])/\\$1/g;
+(my $OPENSSLDIR_QQ = $OPENSSLDIR_Q) =~ s/\\/\\\\/g;
+(my $ENGINESDIR_Q = $ENGINESDIR) =~ s/([\\"])/\\$1/g;
+(my $ENGINESDIR_QQ = $ENGINESDIR_Q) =~ s/\\/\\\\/g;
+
 $defs= <<"EOF";
 # N.B. You MUST use -j on FreeBSD.
 # This makefile has been automatically generated from the OpenSSL distribution.
@@ -637,13 +647,17 @@ $defs .= $preamble if defined $preamble;
 
 $defs.= <<"EOF";
 INSTALLTOP=$INSTALLTOP
+INSTALLTOP_QQ=$INSTALLTOP_QQ
 OPENSSLDIR=$OPENSSLDIR
+OPENSSLDIR_QQ=$OPENSSLDIR_QQ
 ENGINESDIR=$ENGINESDIR
+ENGINESDIR_QQ=$ENGINESDIR_QQ
 
 # Set your compiler options
 PLATFORM=$platform
 CC=$bin_dir${cc}
 CFLAG=$cflags
+CFLAG_Q=$cflags_q
 APP_CFLAG=$app_cflag
 LIB_CFLAG=$lib_cflag
 SHLIB_CFLAG=$shl_cflag
@@ -794,41 +808,11 @@ EOF
 $rules .= &do_rehash_rule("rehash.time", "certs/demo apps tools");
 $rules .= &do_test_rule("test", "rehash.time", "run_tests.pl");
 
-my $platform_cpp_symbol = "MK1MF_PLATFORM_$platform";
-$platform_cpp_symbol =~ s/-/_/g;
-if (open(IN,"crypto/buildinf.h"))
-	{
-	# Remove entry for this platform in existing file buildinf.h.
-
-	my $old_buildinf_h = "";
-	while (<IN>)
-		{
-		if (/^\#ifdef $platform_cpp_symbol$/)
-			{
-			while (<IN>) { last if (/^\#endif/); }
-			}
-		else
-			{
-			$old_buildinf_h .= $_;
-			}
-		}
-	close(IN);
-
-	open(OUT,">crypto/buildinf.h") || die "Can't open buildinf.h";
-	print OUT $old_buildinf_h;
-	close(OUT);
-	}
-
-open (OUT,">>crypto/buildinf.h") || die "Can't open buildinf.h";
-printf OUT <<"EOF";
-#ifdef $platform_cpp_symbol
-  /* auto-generated/updated by util/mk1mf.pl for crypto/cversion.c */
-  #define CFLAGS "compiler: $cc $cflags"
-  #define PLATFORM "$platform"
+$rules .= <<"EOF";
+crypto${o}buildinf.h : MINFO
+	\$(PERL) util${o}mkbuildinf.pl "\$(CC) \$(CFLAG_Q)" "\$(PLATFORM)" > crypto${o}buildinf.h
+$(OBJ_D)${o}cversion${obj} : crypto${o}buildinf.h
 EOF
-printf OUT "  #define DATE \"%s\"\n", scalar gmtime();
-printf OUT "#endif\n";
-close(OUT);
 
 # Strip off trailing ' '
 foreach (keys %lib_obj) { $lib_obj{$_}=&clean_up_ws($lib_obj{$_}); }
@@ -1277,7 +1261,6 @@ sub cc_compile_target
 	local($target,$source,$ex_flags)=@_;
 	local($ret);
 	
-	$ex_flags.=" -DMK1MF_BUILD -D$platform_cpp_symbol" if ($source =~ /cversion/);
 	$target =~ s/\//$o/g if $o ne "/";
 	$source =~ s/\//$o/g if $o ne "/";
 	$ret ="$target: \$(SRC_D)$o$source\n\t";

util/mkbuildinf.pl

@@ -5,15 +5,14 @@ my ($cflags, $platform) = @ARGV;
 $cflags = "compiler: $cflags";
 $date = localtime();
 print <<"END_OUTPUT";
-#ifndef MK1MF_BUILD
-    /* auto-generated by util/mkbuildinf.pl for crypto/cversion.c */
-    #define CFLAGS cflags
-    /*
-     * Generate CFLAGS as an array of individual characters. This is a
-     * workaround for the situation where CFLAGS gets too long for a C90 string
-     * literal
-     */
-    static const char cflags[] = {
+/* auto-generated by util/mkbuildinf.pl for crypto/cversion.c */
+#define CFLAGS cflags
+/*
+ * Generate CFLAGS as an array of individual characters. This is a
+ * workaround for the situation where CFLAGS gets too long for a C90 string
+ * literal
+ */
+static const char cflags[] = {
 END_OUTPUT
 my $ctr = 0;
 foreach my $c (split //, $cflags) {
@@ -23,14 +22,13 @@ foreach my $c (split //, $cflags) {
         if ($ctr != 1) {
             print "\n";
         }
-        print "        ";
+        print "    ";
     }
     print "'$c',";
 }
 print <<"END_OUTPUT";
 '\\0'
-    };
-    #define PLATFORM "platform: $platform"
-    #define DATE "built on: $date"
-#endif
+};
+#define PLATFORM "platform: $platform"
+#define DATE "built on: $date"
 END_OUTPUT