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-rw-r--r--depends/Makefile28
1 files changed, 18 insertions, 10 deletions
diff --git a/depends/Makefile b/depends/Makefile
index aa90ea81d9..f7b73da610 100644
--- a/depends/Makefile
+++ b/depends/Makefile
@@ -112,19 +112,27 @@ include builders/$(build_os).mk
include builders/default.mk
include packages/packages.mk
+full_env=$(shell printenv)
+
build_id_string:=$(BUILD_ID_SALT)
-build_id_string+=$(shell $(build_CC) --version 2>/dev/null)
-build_id_string+=$(shell $(build_AR) --version 2>/dev/null)
-build_id_string+=$(shell $(build_CXX) --version 2>/dev/null)
-build_id_string+=$(shell $(build_RANLIB) --version 2>/dev/null)
-build_id_string+=$(shell $(build_STRIP) --version 2>/dev/null)
+
+# GCC only prints COLLECT_LTO_WRAPPER when invoked with just "-v", but we want
+# the information from "-v -E -" as well, so just include both.
+#
+# '3>&1 1>&2 2>&3 > /dev/null' is supposed to swap stdin and stdout and silence
+# stdin, since we only want the stderr output
+build_id_string+=$(shell $(build_CC) -v < /dev/null 3>&1 1>&2 2>&3 > /dev/null) $(shell $(build_CC) -v -E - < /dev/null 3>&1 1>&2 2>&3 > /dev/null)
+build_id_string+=$(shell $(build_AR) --version 2>/dev/null) $(filter AR_%,$(full_env)) ZERO_AR_DATE=$(ZERO_AR_DATE)
+build_id_string+=$(shell $(build_CXX) -v < /dev/null 3>&1 1>&2 2>&3 > /dev/null) $(shell $(build_CXX) -v -E - < /dev/null 3>&1 1>&2 2>&3 > /dev/null)
+build_id_string+=$(shell $(build_RANLIB) --version 2>/dev/null) $(filter RANLIB_%,$(full_env))
+build_id_string+=$(shell $(build_STRIP) --version 2>/dev/null) $(filter STRIP_%,$(full_env))
$(host_arch)_$(host_os)_id_string:=$(HOST_ID_SALT)
-$(host_arch)_$(host_os)_id_string+=$(shell $(host_CC) --version 2>/dev/null)
-$(host_arch)_$(host_os)_id_string+=$(shell $(host_AR) --version 2>/dev/null)
-$(host_arch)_$(host_os)_id_string+=$(shell $(host_CXX) --version 2>/dev/null)
-$(host_arch)_$(host_os)_id_string+=$(shell $(host_RANLIB) --version 2>/dev/null)
-$(host_arch)_$(host_os)_id_string+=$(shell $(host_STRIP) --version 2>/dev/null)
+$(host_arch)_$(host_os)_id_string+=$(shell $(host_CC) -v < /dev/null 3>&1 1>&2 2>&3 > /dev/null) $(shell $(host_CC) -v -E - < /dev/null 3>&1 1>&2 2>&3 > /dev/null)
+$(host_arch)_$(host_os)_id_string+=$(shell $(host_AR) --version 2>/dev/null) $(filter AR_%,$(full_env)) ZERO_AR_DATE=$(ZERO_AR_DATE)
+$(host_arch)_$(host_os)_id_string+=$(shell $(host_CXX) -v < /dev/null 3>&1 1>&2 2>&3 > /dev/null) $(shell $(host_CXX) -v -E - < /dev/null 3>&1 1>&2 2>&3 > /dev/null)
+$(host_arch)_$(host_os)_id_string+=$(shell $(host_RANLIB) --version 2>/dev/null) $(filter RANLIB_%,$(full_env))
+$(host_arch)_$(host_os)_id_string+=$(shell $(host_STRIP) --version 2>/dev/null) $(filter STRIP_%,$(full_env))
ifneq ($(strip $(FORCE_USE_SYSTEM_CLANG)),)
# Make sure that cache is invalidated when switching between system and