cgen: define _GNU_SOURCE on Linux (#23364)

vlang · Jan 4, 2025 · e5ad9a6 · e5ad9a6
1 parent 0763ae7
commit e5ad9a6
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/vlib/v/gen/c/cgen.v b/vlib/v/gen/c/cgen.v
@@ -906,6 +906,10 @@ pub fn (mut g Gen) init() {
 #endif
 ')
 		}
+		if g.pref.os == .linux {
+			// For gettid() declaration (and other GNU-specific bits).
+			g.cheaders.writeln('#define _GNU_SOURCE')
+		}
 		if g.pref.os == .wasm32 {
 			g.cheaders.writeln('#define VWASM 1')
 			// Include <stdint.h> instead of <inttypes.h> for WASM target