Check if execinfo.h header is found (only for *BSD)

[Olivier Duchateau]

With the latest release (0.5.5), new extension devpet.vala uses execinfo.h header.

Under FreeBSD, I get this error:
[...]
default/extensions/devpet.c:22:22: error: execinfo.h: No such file or directory
Waf: Leaving directory `/work/a/ports/www/midori/work/midori-0.5.5/_build'
Build failed: -> task failed (err #1):
 {task: cc devpet.c -> devpet_9.o}
*** [all] Error code 1
1 error
===> Compilation failed unexpectedly.

This header (only for *BSD) is not present by default. It's only available in devel/libexecinfo port.

Here configure log (excerpt under FreeBSD) with patch:

[...]
Checking for x11 : 1.4.4
Checking for header X11/extensions/scrnsaver.h : yes
Checking for library Xss : yes
Checking for header execinfo.h : yes
Checking for gtk+-2.0 >= 2.24.0 : 2.24.17
Checking for webkit-1.0 >= 1.8.3 : 1.8.3
Checking for javascriptcoregtk-1.0 >= 1.8.3 : 1.8.3
[...]

[Cris Dywan (kalikiana)]

When this gets fixed it should be done for cmake builds (bug 1211909).

[Olivier Duchateau (duchateau-olivier)]

Here new patch with cmake.

[Olivier Duchateau (duchateau-olivier)]

I think devpet.vala extension needs to be disabled under BSD system, new patch is available here, https://code.launchpad.net/~midori/midori/execinfo/+merge/185649/comments/423305