Meson/MSVC: Support builds directly from GIT checkouts

fanc999-1 · kjellahl · commit 87a933d053c5 · 2019-12-29T18:12:25.000+01:00
It appears that if one uses the m4 that is given by mingw-w64 (and
perhaps Cygwin), that m4 is enough to generate the sources and headers
that we need for the build.

So, remove the lines saying building directly from GIT checkouts are not
supported.
diff --git a/meson.build b/meson.build
@@ -59,10 +59,6 @@ is_git_build = run_command(python3, '-c', cmd_py).returncode() == 0
 # is_git_build = run_command('test', '-d', project_source_root / '.git').returncode() == 0
 # Python code can be used in all operating sytems where Meson can run.
 
-# Unfortunately due to m4 requirements, we cannot support MSVC builds
-# directly from GIT checkouts
-assert(not is_msvc or not is_git_build, 'Direct builds from GIT is not supported for MSVC builds')
-
 # Options.
 maintainer_mode_opt = get_option('maintainer-mode')
 maintainer_mode = maintainer_mode_opt == 'true' or \
