make depend to work with cross-gcc, compensate for msys glitch.

PR: 1753
Submitted by: Alon Bar-Lev

Configure

@@ -1432,12 +1432,13 @@ while (<IN>)
 		s/^AR=\s*/AR= \$\(CROSS_COMPILE_PREFIX\)/;
 		s/^NM=\s*/NM= \$\(CROSS_COMPILE_PREFIX\)/;
 		s/^RANLIB=\s*/RANLIB= \$\(CROSS_COMPILE_PREFIX\)/;
+		s/^MAKEDEPPROG=.*$/MAKEDEPPROG= \$\(CROSS_COMPILE_PREFIX\)$cc/ if $cc eq "gcc";
 		}
 	else	{
 		s/^CC=.*$/CC= $cc/;
 		s/^RANLIB=.*/RANLIB= $ranlib/;
+		s/^MAKEDEPPROG=.*$/MAKEDEPPROG= $cc/ if $cc eq "gcc";
 		}
-	s/^MAKEDEPPROG=.*$/MAKEDEPPROG= $cc/ if $cc eq "gcc";
 	s/^CFLAG=.*$/CFLAG= $cflags/;
 	s/^DEPFLAG=.*$/DEPFLAG=$depflags/;
 	s/^PEX_LIBS=.*$/PEX_LIBS= $prelflags/;

util/domd

@@ -14,7 +14,7 @@ if [ "$MAKEDEPEND" = "" ]; then MAKEDEPEND=makedepend; fi
 cp Makefile Makefile.save
 # fake the presence of Kerberos
 touch $TOP/krb5.h
-if [ "$MAKEDEPEND" = "gcc" ]; then
+if expr "$MAKEDEPEND" : '.*gcc$' > /dev/null; then
     args=""
     while [ $# -gt 0 ]; do
 	if [ "$1" != "--" ]; then args="$args $1"; fi
@@ -22,7 +22,7 @@ if [ "$MAKEDEPEND" = "gcc" ]; then
     done
     sed -e '/^# DO NOT DELETE.*/,$d' < Makefile > Makefile.tmp
     echo '# DO NOT DELETE THIS LINE -- make depend depends on it.' >> Makefile.tmp
-    gcc -Werror -D OPENSSL_DOING_MAKEDEPEND -M $args >> Makefile.tmp || exit
+    ${MAKEDEPEND} -Werror -D OPENSSL_DOING_MAKEDEPEND -M $args >> Makefile.tmp || exit
     ${PERL} $TOP/util/clean-depend.pl < Makefile.tmp > Makefile.new
     rm -f Makefile.tmp
 else

util/mklink.pl

@@ -51,6 +51,7 @@ my $to = join('/', @to_path);
 
 my $file;
 $symlink_exists=eval {symlink("",""); 1};
+if ($^O eq "msys") { $symlink_exists=0 };
 foreach $file (@files) {
     my $err = "";
     if ($symlink_exists) {