gcc4-g++: ilmbase segfaults

["Yaakov (Cygwin/X)" <yselkowitz at users dot sourceforge dot net>]

I've been having some issues with the OpenEXR libraries (as mentioned on 
the Ports list), and it looks like the problem is in ilmbase.  I have 
attached the .cygport and a build patch; it has no dependencies besides 
a C++ compiler.  Neither Debian nor Gentoo ship any patches for ilmbase, 
so I'm suspecting a bug in either Cygwin or GCC.

After building a debug build and running 'make check' in IexTest:

$ ../libtool --mode=execute gdb ./IexTest.exe
[...]
(gdb) run0
Starting program: 
/usr/src/ports/graphics/ilmbase/ilmbase-1.0.1-11/build/IexTest/.libs/IexTest
[New thread 1976.0x1338]
Error: dll starting at 0x77600000 not found.
Error: dll starting at 0x759b0000 not found.
Error: dll starting at 0x77600000 not found.
Error: dll starting at 0x77500000 not found.
[New thread 1976.0xef4]
See if throw and catch work:
1

Program received signal SIGSEGV, Segmentation fault.
0x6c4e8010 in ?? ()
(gdb) bt
#0  0x6c4e8010 in ?? ()
#1  0x3d2381f4 in cygstdc++-6!_ZNSs4_Rep9_S_createEjjRKSaIcE ()
   from /usr/bin/cygstdc++-6.dll
#2  0x3d237caa in 
cygstdc++-6!_ZNSs12_S_constructIPKcEEPcT_S3_RKSaIcESt20forward_iterator_tag 
() from /usr/bin/cygstdc++-6.dll
#3  0x3d2398b6 in cygstdc++-6!_ZNSsC2EPKcRKSaIcE ()
   from /usr/bin/cygstdc++-6.dll
#4  0x6d703628 in BaseExc (this=0xe49f80, s=0x40311d "ArgExc")
    at Iex/IexBaseExc.cpp:71
#5  0x00402278 in ArgExc (this=0xe49f80, text=0x40311d "ArgExc")
    at Iex/IexBaseExc.h:142
#6  0x004015c1 in throwArgExc ()
    at IexTest/testBaseExc.cpp:48
#7  0x004016d6 in _fu3___ZSt4cout ()
    at IexTest/testBaseExc.cpp:91
#8  0x00401947 in _fu5___ZSt4cout ()
    at IexTest/testBaseExc.cpp:203
#9  0x00401175 in main (argc=1, argv=0xe39d00)
    at IexTest/main.cpp:46


Yaakov

Attachment: ilmbase-1.0.1-11.cygport
Description: Text document

Attachment: 1.0.1-exeext.patch
Description: Text document

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