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-rw-r--r--src/GNUmakefile7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/GNUmakefile b/src/GNUmakefile
index ef80e95..bba3ee6 100644
--- a/src/GNUmakefile
+++ b/src/GNUmakefile
@@ -21,6 +21,13 @@
CC = clang
CXX = clang++
NASM = yasm
+
+# Default to a 64-bit build -- 32-bit clang isn't available in this
+# environment anyway (see CLAUDE.md). Still overridable in principle
+# (e.g. `gmake SIXTYFOUR=` won't un-set it since ?= only fires when
+# unset, but this matches how every build in this session has actually
+# been invoked).
+SIXTYFOUR ?= 1
ifdef OSX
LIBRARIES = -pthread -lc
ifdef SIXTYFOUR