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From: Vagrant Cascadian <vagrant@reproducible-builds.org>
Date: Fri, 9 Jul 2021 15:13:24 +0000
X-Dgit-Generated: 3.3+20.604758e7-6.3 b8d331f9a8fd602863fd5b749cd0f26411889da4
Subject: Use the build date from SOURCE_DATE_EPOCH if set, falling back to
current time. (Closes: #990862)
https://reproducible-builds.org/docs/source-date-epoch/
---
diff --git a/Makefile b/Makefile
index d79c4bd..64d6f6b 100644
--- a/Makefile
+++ b/Makefile
@@ -270,7 +270,7 @@ ${TARGLIB}.so.${MAJOR}: ${TARGLIB}.so.${MAJOR}.${MINOR}
# file around. Generate it such that the ident command can find it
# and strings -a | grep InfiniPath does a reasonable job as well.
${TARGLIB}.so.${MAJOR}.${MINOR}: ${${TARGLIB}-objs}
- date +'char psmi_infinipath_revision[] ="$$""Date: %F %R ${rpm_extra_description}InfiniPath $$";' > ${lib_build_dir}/_revision.c
+ printf 'char psmi_infinipath_revision[] ="$$""Date: %s ${rpm_extra_description} InfiniPath $$";\n' "$(BUILD_DATE)" > ${lib_build_dir}/_revision.c
$(CC) -c $(BASECFLAGS) $(INCLUDES) _revision.c -o _revision.o
$(CC) $(LDFLAGS) -o $@ -Wl,-soname=${TARGLIB}.so.${MAJOR} -shared -Wl,--unique='*fastpath*' \
${${TARGLIB}-objs} _revision.o -L$(build_dir)/ipath $(LDLIBS)
diff --git a/buildflags.mak b/buildflags.mak
index 34fdf1c..be40c40 100644
--- a/buildflags.mak
+++ b/buildflags.mak
@@ -96,3 +96,11 @@ endif
CFLAGS += $(BASECFLAGS) $(if $(filter $(CC),gcc),-Wno-strict-aliasing) \
$(if $(PSM_VALGRIND:0=),-DPSM_VALGRIND,-DNVALGRIND)
+# Use SOURCE_DATE_EPOCH for build date, falling back to current time
+# https://reproducible-builds.org/docs/source-date-epoch/
+DATE_FMT="+'%F %R'"
+ifdef SOURCE_DATE_EPOCH
+ BUILD_DATE ?= $(shell date -u -d "@$(SOURCE_DATE_EPOCH)" "$(DATE_FMT)" 2>/dev/null || date -u -r "$(SOURCE_DATE_EPOCH)" "$(DATE_FMT)" 2>/dev/null || date -u "$(DATE_FMT)")
+else
+ BUILD_DATE ?= $(shell date "$(DATE_FMT)")
+endif
diff --git a/ipath/Makefile b/ipath/Makefile
index 8c2cc6e..e627b3d 100644
--- a/ipath/Makefile
+++ b/ipath/Makefile
@@ -70,7 +70,7 @@ ${TARGLIB}.so.${MAJOR}: ${TARGLIB}.so.${MAJOR}.${MINOR}
# file around. Generate it such that the ident command can find it
# and strings -a | grep InfiniPath does a reasonable job as well.
${TARGLIB}.so.${MAJOR}.${MINOR}: ${${TARGLIB}-objs}
- date +'static __attribute__ ((unused)) char __psc_infinipath_revision[] ="$$""Date: %F %R ${rpm_extra_description}InfiniPath $$";' > _revision.c
+ printf 'static __attribute__ ((unused)) char __psc_infinipath_revision[] ="$$""Date: %s ${rpm_extra_description}InfiniPath $$";\n' "$(BUILD_DATE)" > _revision.c
$(CC) -c $(BASECFLAGS) $(INCLUDES) _revision.c -o _revision.o
$(CC) -o $@ -Wl,-soname=${TARGLIB}.so.${MAJOR} -shared \
-Wl,--unique='*fastpath*' \
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