diff options
Diffstat (limited to 'tools/scripts/Makefile.arch')
| -rw-r--r-- | tools/scripts/Makefile.arch | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/tools/scripts/Makefile.arch b/tools/scripts/Makefile.arch index eabfe9f411d9..ed5f008d400e 100644 --- a/tools/scripts/Makefile.arch +++ b/tools/scripts/Makefile.arch @@ -38,7 +38,13 @@ ifeq ($(ARCH),loongarch64) SRCARCH := loongarch endif -LP64 := $(shell echo __LP64__ | ${CC} ${CFLAGS} -E -x c - | tail -n 1) +# Probe for __LP64__ only when the compiler is installed: this runs at +# parse time for every target, including ones that never compile, e.g. +# install-build-deps, and would otherwise spew "gcc: not found" when the +# compiler is not yet installed. Only the first word of CC is consulted, +# as CC may carry arguments, e.g. 'ccache gcc'. When the guard fails it +# prints nothing, leaving LP64 unset, as if the probe had failed. +LP64 := $(shell if command -v $(firstword ${CC}) >/dev/null 2>&1; then echo __LP64__ | ${CC} ${CFLAGS} -E -x c -; fi | tail -n 1) ifeq ($(LP64), 1) IS_64_BIT := 1 else |