[libvirt PATCH 4/4] meson: Look for GNU tools on macOS too

[Andrea Bolognani]

macOS is similar to FreeBSD in that it ships non-GNU versions
of several base utilities that we need in the base system.

macOS actually includes GNU make already, but unfortunately due
to licensing reasons the tool is permanently stuck in 2006, so
even in that case users are better off installing a recent
version from Homebrew along with the dozens of other libvirt
dependencies that already need to be obtained that way.

Note that, unlike FreeBSD ports, Homebrew is fully consistent
in adding the 'g' prefix to the name of the GNU tools, so we
can detect GNU grep without additional hacks.

Signed-off-by: Andrea Bolognani <abologna at redhat.com>
---
 build-aux/meson.build | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/build-aux/meson.build b/build-aux/meson.build
index fe88d6b736..1095982397 100644
--- a/build-aux/meson.build
+++ b/build-aux/meson.build
@@ -10,7 +10,7 @@ syntax_check_conf.set('flake8_path', flake8_path)
 syntax_check_conf.set('runutf8', ' '.join(runutf8))
 syntax_check_conf.set('PYTHON3', python3_prog.path())
 
-if host_machine.system() == 'freebsd'
+if host_machine.system() == 'freebsd' or host_machine.system() == 'darwin'
   make_prog = find_program('gmake')
   sed_prog = find_program('gsed')
 else
@@ -31,6 +31,8 @@ if host_machine.system() == 'freebsd'
       error('GNU grep not found')
     endif
   endif
+elif host_machine.system() == 'darwin'
+  grep_prog = find_program('ggrep')
 else
   grep_prog = find_program('grep')
 endif
-- 
2.26.3