meson: gate pipesz on F_GETPIPE_SZ

The target needs this symbol, encode this in the build system.

Signed-off-by: Thomas Weißschuh <thomas@t-8ch.de>

diff --git a/meson.build b/meson.build
index bc0a7397f5209dd18ce759b38b13b167d13d5605..67a4c93027b9bba3bd2d33586cfd4fe1793f1b3c 100644 (file)
--- a/meson.build
+++ b/meson.build
@@ -3336,7 +3336,9 @@ if opt and not is_disabler(exe)
   bashcompletions += ['hardlink']
 endif
 
-opt = get_option('build-pipesz').allowed()
+opt = get_option('build-pipesz') \
+      .require(cc.has_header_symbol('fcntl.h', 'F_GETPIPE_SZ')) \
+      .allowed()
 exe = executable(
   'pipesz',
   pipesz_sources,