Made cstdlib a subproject.

cross/ownstdlib.txt

@@ -0,0 +1,13 @@
+# This is a setup for compiling a program that runs natively
+# but uses a custom std lib. This test will only work on
+# x86_64.
+
+[target_machine]
+system = 'linux'
+cpu_family = 'x86_64'
+cpu = 'x86_64'
+endian = 'little'
+
+[properties]
+
+c_stdlib = ['mylibc', 'mylibc_dep'] # Subproject name, dependency name

manual tests/9 nostdlib/meson.build

@@ -2,17 +2,13 @@ project('own libc', 'c')
 
 # A simple project that uses its own libc.
 
-# Start with manual flags to compile, then add platform support.
-
-libc = static_library('c', 'libc.c', 'stubstart.s',
-  c_args : '-nostdlib',
-  link_args : '-nostdlib',
-)
+libc_proj = subproject('mylibc')
+libc_dep = libc_proj.get_variable('mylibc_dep')
 
 exe = executable('selfcontained', 'prog.c',
   c_args : '-nostdlib',
   link_args : '-nostdlib',
-  link_with : libc,
+  dependencies : libc_dep,
 )
 
 test('standalone test', exe)

manual tests/9 nostdlib/subprojects/mylibc/meson.build

@@ -0,0 +1,12 @@
+project('own libc', 'c')
+
+# A very simple libc implementation
+
+# Start with manual flags to compile, then add platform support.
+
+libc = static_library('c', 'libc.c', 'stubstart.s',
+)
+
+mylibc_dep = declare_dependency(link_with : libc,
+  include_directories : include_directories('.')
+)