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On 2/21/2014 10:32 AM, Angelo Graziosi wrote:
Trying to build libsigsegv-2.10 on Cygwin64 (using the src tarball and its .cygport file from x86 distribution), fails as follows [...] libtool: compile: gcc -DHAVE_CONFIG_H -I. -I/works/tmp/libsigsegv-2.10-1/src/libsigsegv-2.10/src -I.. -I. -I/works/tmp/libsigsegv-2.10-1/src/libsigsegv-2.10/src -ggdb -O2 -pipe -Wimplicit-function-declaration -fdebug-prefix-map=/works/tmp/libsigsegv-2.10-1/build=/usr/src/debug/libsigsegv-2.10-1 -fdebug-prefix-map=/works/tmp/libsigsegv-2.10-1/src/libsigsegv-2.10=/usr/src/debug/libsigsegv-2.10-1 -c /works/tmp/libsigsegv-2.10-1/src/libsigsegv-2.10/src/handler.c -DDLL_EXPORT -DPIC -o .libs/handler.o In file included from /works/tmp/libsigsegv-2.10-1/src/libsigsegv-2.10/src/handler.c:20:0: /works/tmp/libsigsegv-2.10-1/src/libsigsegv-2.10/src/handler-win32.c: In function 'main_exception_filter': /works/tmp/libsigsegv-2.10-1/src/libsigsegv-2.10/src/handler-win32.c:218:43: error: 'struct _CONTEXT' has no member named 'Esp' ExceptionInfo->ContextRecord->Esp = new_safe_esp; ^ /works/tmp/libsigsegv-2.10-1/src/libsigsegv-2.10/src/handler-win32.c:220:43: error: 'struct _CONTEXT' has no member named 'Eip' ExceptionInfo->ContextRecord->Eip = (unsigned long)&stack_overflow_handler; ^ Makefile:399: set di istruzioni per l'obiettivo "handler.lo" non riuscito make[1]: *** [handler.lo] Errore 1 make[1]: uscita dalla directory "/works/tmp/libsigsegv-2.10-1/build/src" Makefile:344: set di istruzioni per l'obiettivo "install-recursive" non riuscito make: *** [install-recursive] Errore 1 Since my Cygwin64 is a fesh installation, I wonder if I missed to installe some needed packages... or is that error to be expected on Cygwin64?
I found the problem (or at least I found *a* problem): There's a configure test "checking whether a fault handler according to POSIX works", which passes on 32-bit Cygwin but fails on 64-bit Cygwin. I'm attaching a file containing the configure test. Here's what happens in the 64-bit case:
$ gcc -o fault fault.c $ ./fault.exe $ echo $? 1 In the 32-bit case, the exit code is 0.I don't know if this indicates a Cygwin bug or something wrong with the test.
Ken
Attachment:
fault.c
Description: Text document
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