Use include paths to our source before any other cflags

This is just in case someone passed an inclusion path with the
configuration, and there are OpenSSL headers from another version
in there.
Reviewed-by: NTim Hudson <tjh@openssl.org>
Reviewed-by: NRichard Levitte <levitte@openssl.org>

Configurations/unix-Makefile.tmpl

@@ -871,7 +871,7 @@ EOF
 $target: $args{generator}->[0] $deps
 	( trap "rm -f \$@.*" INT 0; \\
 	  $generator \$@.S; \\
-	  \$(CC) \$(CFLAGS) $incs -E \$@.S | \\
+	  \$(CC) $incs \$(CFLAGS) -E \$@.S | \\
 	  \$(PERL) -ne '/^#(line)?\\s*[0-9]+/ or print' > \$@.i && \\
 	  mv -f \$@.i \$@ )
 EOF
@@ -884,7 +884,7 @@ EOF
           }
           return <<"EOF";
 $args{src}: $args{generator}->[0] $deps
-	\$(CC) \$(CFLAGS) $incs -E \$< | \\
+	\$(CC) $incs \$(CFLAGS) -E \$< | \\
 	\$(PERL) -ne '/^#(line)?\\s*[0-9]+/ or print' > \$@
 EOF
       }
@@ -918,7 +918,7 @@ EOF
       if (!$disabled{makedepend} && $makedepprog =~ /\/makedepend/) {
           $recipe .= <<"EOF";
 $obj$depext: $deps
-	-\$(MAKEDEPEND) -f- -o"|$obj$objext" -- \$(CFLAGS) $ecflags$incs -- $srcs \\
+	-\$(MAKEDEPEND) -f- -o"|$obj$objext" -- $incs \$(CFLAGS) $ecflags -- $srcs \\
 	    >\$\@.tmp 2>/dev/null
 	-\$(PERL) -i -pe 's/^.*\\|//; s/ \\/(\\\\.|[^ ])*//; \$\$_ = undef if (/: *\$\$/ || /^(#.*| *)\$\$/); \$\$_.="\\n" unless !defined(\$\$_) or /\\R\$\$/g;' \$\@.tmp
 	\@if cmp \$\@.tmp \$\@ > /dev/null 2> /dev/null; then \\
@@ -932,13 +932,13 @@ EOF
       if ($disabled{makedepend} || $makedepprog =~ /\/makedepend/) {
           $recipe .= <<"EOF";
 $obj$objext: $deps
-	\$(CC) \$(CFLAGS) $ecflags$incs -c -o \$\@ $srcs
+	\$(CC) $incs \$(CFLAGS) $ecflags -c -o \$\@ $srcs
 EOF
       }
       if (!$disabled{makedepend} && $makedepprog !~ /\/makedepend/) {
           $recipe .= <<"EOF";
 $obj$objext: $deps
-	\$(CC) \$(CFLAGS) $ecflags$incs -MMD -MF $obj$depext.tmp -MT \$\@ -c -o \$\@ $srcs
+	\$(CC) $incs \$(CFLAGS) $ecflags -MMD -MF $obj$depext.tmp -MT \$\@ -c -o \$\@ $srcs
 	\@touch $obj$depext.tmp
 	\@if cmp $obj$depext.tmp $obj$depext > /dev/null 2> /dev/null; then \\
 		rm -f $obj$depext.tmp; \\

Configurations/windows-makefile.tmpl

@@ -349,7 +349,7 @@ EOF
 $target: "$args{generator}->[0]" $deps
 	set ASM=\$(AS)
 	$generator \$@.S
-	\$(CC) \$(CFLAGS) $incs /EP /C \$@.S > \$@.i && move /Y \$@.i \$@
+	\$(CC) $incs \$(CFLAGS) /EP /C \$@.S > \$@.i && move /Y \$@.i \$@
         del /Q \$@.S
 EOF
               }
@@ -362,7 +362,7 @@ EOF
           }
           return <<"EOF";
 $target: "$args{generator}->[0]" $deps
-	\$(CC) \$(CFLAGS) $incs /EP /C "$args{generator}->[0]" > \$@.i && move /Y \$@.i \$@
+	\$(CC) $incs \$(CFLAGS) /EP /C "$args{generator}->[0]" > \$@.i && move /Y \$@.i \$@
 EOF
       }
   }
@@ -400,13 +400,13 @@ s/^Note: including file: *//;
 END { print '$obj$objext: ',join(" ", sort keys \%collect),"\\n" }
 <<
 $obj$objext: $obj$depext
-	\$(CC) \$(CFLAGS) $ecflags$incs -c \$(COUTFLAG)\$\@ @<<
+	\$(CC) $incs \$(CFLAGS) $ecflags -c \$(COUTFLAG)\$\@ @<<
 $srcs
 <<
 EOF
     return <<"EOF"	if ($disabled{makedepend});
 $obj$objext: $deps
-	\$(CC) \$(CFLAGS) $ecflags$incs -c \$(COUTFLAG)\$\@ $srcs
+	\$(CC) $incs \$(CFLAGS) $ecflags -c \$(COUTFLAG)\$\@ $srcs
 EOF
  }