build: fix check for libbsd in meson

When we check for libbsd we were just checking for the library itself.
However, on some distros, e.g. CentOS, libbsd will be found even though
it's not usable by DPDK as it's missing the string header. Therefore we
should check for both the library and the header file.

Fixes: 5364de644a4b ("eal: support strlcpy function")
Signed-off-by: Bruce Richarson <bruce.richardson@intel.com>
Reported-by: Vladimir Medvedkin <medvedkinv@gmail.com>
Acked-by: Vladimir Medvedkin <medvedkinv@gmail.com>
Acked-by: Luca Boccassi <bluca@debian.org>

diff --git a/config/meson.build b/config/meson.build
index 5815b56021b11432ea12955b18f946f049530e89..2179c689c14d4e1e8c7fbba4639e91e634475bcd 100644 (file)
--- a/config/meson.build
+++ b/config/meson.build
@@ -43,7 +43,8 @@ if numa_dep.found() and cc.has_header('numaif.h')
 endif
 
 # check for strlcpy
-if host_machine.system() == 'linux' and cc.find_library('bsd', required: false).found()
+if host_machine.system() == 'linux' and cc.find_library('bsd',
+               required: false).found() and cc.has_header('bsd/string.h')
        dpdk_conf.set('RTE_USE_LIBBSD', 1)
        add_project_link_arguments('-lbsd', language: 'c')
        dpdk_extra_ldflags += '-lbsd'