[Bug 940] xmmap.c noequality compile error on DigitalUNIX 4.0F PK7

[bugzilla-daemon at mindrot.org]

http://bugzilla.mindrot.org/show_bug.cgi?id=940

           Summary: xmmap.c noequality compile error on DigitalUNIX 4.0F PK7
           Product: Portable OpenSSH
           Version: 3.9p1
          Platform: Alpha
        OS/Version: OSF/1
            Status: NEW
          Severity: critical
          Priority: P2
         Component: Build system
        AssignedTo: openssh-bugs at mindrot.org
        ReportedBy: anenni at isisw.com


On Digital UNIX 4.0F (patch-kit 7), after configure with only zlib path, make
command fails with this error:

root at plutone/var/appoggio/openssh-3.9p1# make
(cd openbsd-compat && make)
cc -std1 -g -I. -I.. -I. -I./.. -I/usr/local/ssl/include -I/usr/local/include 
-DHAVE_CONFIG_H -c xmmap.c
cc: Error: xmmap.c, line 50: In this statement, "address" and "(-1)" cannot be
compared for equality or inequality. (noequality)
        if (address == MAP_FAILED) {
------------^
*** Exit 1
Stop.
*** Exit 1
Stop.

Openssh 3.8.1p1 compiles fine giving just this warning:

cc -g -I. -I.. -I. -I./.. -I/usr/local/ssl/include -I/usr/local/include 
-DHAVE_CONFIG_H -c xmmap.c
cc: Warning: xmmap.c, line 50: In this statement, "(-1)" of type "long", is
being converted to "pointer to void". (cvtdiftypes)
        if (address == MAP_FAILED) {
------------^



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