[geos-devel] [GEOS] #568: mingw64 chain compiling win32 regress failure

[GEOS]

#568: mingw64 chain compiling win32 regress failure
------------------------+---------------------------------------------------
 Reporter:  robe        |       Owner:  geos-devel@…              
     Type:  defect      |      Status:  new                       
 Priority:  major       |   Milestone:  3.4.0                     
Component:  Default     |     Version:  svn-trunk                 
 Severity:  Unassigned  |    Keywords:                            
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Comment(by esseffe):

 Hi Robe,

 I've been able to succesfully compile GEOS-trunk [geos-20121123 nightly
 snapshot] on MinGW-64 v.4.7.0

 Anyway I've noticed a very puzzling issue caused by ./configure (please
 note: it works nicely on MinGW 32, this issue is strictly limited to MinGW
 64, and the same identical issue affects the GEOS 3.3.6 ./configure
 script)

 {{{
 checking whether long long int is 64 bits... no
 configure: WARNING: Could not find a working 64bit int type, you may
 experience
 weird bugs (undefined behaviour)
 }}}

 the cause explaining for this oddity is in this line of the ./configure
 script:
 {{{
 exit(! does_int64_work());
 }}}

 simply changing the above line as follows seems to be an effective
 solution:
 {{{
 if (does_int64_work())
     exit(0);
 exit(-1);
 }}}

 I strongly suspect that Win64 has its own opinions about exit(), true and
 false :-D

 bye Sandro
 (SpatiaLite maintainer)

-- 
Ticket URL: <http://trac.osgeo.org/geos/ticket/568#comment:1>
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GEOS (Geometry Engine - Open Source) is a C++ port of the Java Topology Suite (JTS).