I want to build Asterisk PBX under Windows, it seems to be possible by using cygwin.
The configure script complains about not finding the uuid_generate_random method in the uuid library.
So I tried to create a little test program :
#include <uuid/uuid.h>
int main ()
{
uuid_t out;
uuid_generate_random(out);
return 0;
}
This program is compiled using this command : gcc uuid.c -luuid
The -luuid seems to works, as if I change this value (like -luuidX) gcc complains about the fact it can't find the uuidX library.
But the LD pass doesn't works :
$ gcc uuid.c -luuid
/tmp/ccu0oh9q.o:uuid.c:(.text+0x16): undefined reference to `uuid_generate_random'
collect2: error: ld returned 1 exit status
I manage to work around, but this is not really clean, and I don't know how to make the configure script take this tweak :
gcc -o uuid.exe uuid.o /cygdrive/c/cygwin/lib/libuuid.dll.a
Any idea where does the problem come from ?
Thanks.
Added : verbose gcc output
gcc -v uuid.c -luuid
Using built-in specs.
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Thread model: posix
gcc version 5.3.0 (GCC)
COLLECT_GCC_OPTIONS='-v' '-mtune=generic' '-march=i686'
/usr/lib/gcc/i686-pc-cygwin/5.3.0/cc1.exe -quiet -v -Dunix -idirafter /usr/lib/../include/w32api -idirafter /usr/lib/gcc/i686-pc-cygwin/5.3.0/../../../../i686-pc-cygwin/lib/../../include/w32api uuid.c -quiet -dumpbase uuid.c -mtune=generic -march=i686 -auxbase uuid -version -o /tmp/ccVIcgnD.s
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GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
ignoring nonexistent directory "/usr/local/include"
ignoring nonexistent directory "/usr/lib/gcc/i686-pc-cygwin/5.3.0/include-fixed"
ignoring nonexistent directory "/usr/lib/gcc/i686-pc-cygwin/5.3.0/../../../../i686-pc-cygwin/include"
ignoring duplicate directory "/usr/lib/gcc/i686-pc-cygwin/5.3.0/../../../../i686-pc-cygwin/lib/../../include/w32api"
#include "..." search starts here:
#include <...> search starts here:
/usr/lib/gcc/i686-pc-cygwin/5.3.0/include
/usr/include
/usr/lib/../include/w32api
End of search list.
GNU C11 (GCC) version 5.3.0 (i686-pc-cygwin)
compiled by GNU C version 5.3.0, GMP version 6.1.0, MPFR version 3.1.4, MPC version 1.0.3
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
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/usr/lib/gcc/i686-pc-cygwin/5.3.0/../../../../i686-pc-cygwin/bin/as.exe -v -o /tmp/cc0dlffC.o /tmp/ccVIcgnD.s
GNU assembler version 2.25.2 (i686-pc-cygwin) using BFD version (GNU Binutils) 2.25.2
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COLLECT_GCC_OPTIONS='-v' '-mtune=generic' '-march=i686'
/usr/lib/gcc/i686-pc-cygwin/5.3.0/collect2.exe -plugin /usr/lib/gcc/i686-pc-cygwin/5.3.0/cyglto_plugin.dll -plugin-opt=/usr/lib/gcc/i686-pc-cygwin/5.3.0/lto-wrapper.exe -plugin-opt=-fresolution=/tmp/ccFo5pxm.res -plugin-opt=-pass-through=-lgcc_s -plugin-opt=-pass-through=-lgcc -plugin-opt=-pass-through=-lcygwin -plugin-opt=-pass-through=-ladvapi32 -plugin-opt=-pass-through=-lshell32 -plugin-opt=-pass-through=-luser32 -plugin-opt=-pass-through=-lkernel32 -plugin-opt=-pass-through=-lgcc_s -plugin-opt=-pass-through=-lgcc --build-id --wrap _Znwj --wrap _Znaj --wrap _ZdlPv --wrap _ZdaPv --wrap _ZnwjRKSt9nothrow_t --wrap _ZnajRKSt9nothrow_t --wrap _ZdlPvRKSt9nothrow_t --wrap _ZdaPvRKSt9nothrow_t -Bdynamic --dll-search-prefix=cyg --large-address-aware --tsaware /usr/lib/crt0.o /usr/lib/gcc/i686-pc-cygwin/5.3.0/crtbegin.o -L/usr/lib/gcc/i686-pc-cygwin/5.3.0 -L/usr/lib/gcc/i686-pc-cygwin/5.3.0/../../../../i686-pc-cygwin/lib -L/usr/lib/w32api /tmp/cc0dlffC.o -luuid -lgcc_s -lgcc -lcygwin -ladvapi32 -lshell32 -luser32 -lkernel32 -lgcc_s -lgcc /usr/lib/default-manifest.o /usr/lib/gcc/i686-pc-cygwin/5.3.0/crtend.o
/tmp/cc0dlffC.o:uuid.c:(.text+0x16): undefined reference to `uuid_generate_random'
collect2: error: ld returned 1 exit status
It is a gcc package error. As workaround use
gcc uuid.c -luuid -L/usr/lib
Reported to cygwin mailing list