AFS_component_version_number.c: Respect SOURCE_DATE_EPOCH if set

[openafs.git] / src / config / Makefile.version-NOCML.in

diff --git a/src/config/Makefile.version-NOCML.in b/src/config/Makefile.version-NOCML.in
index 7aba6ea..c65cfe9 100644 (file)
--- a/src/config/Makefile.version-NOCML.in
+++ b/src/config/Makefile.version-NOCML.in
@@ -10,9 +10,16 @@ PACKAGE=@PACKAGE@
 AFS_component_version_number.o: AFS_component_version_number.c
 
 AFS_component_version_number.c: @TOP_OBJDIR@/src/config/Makefile.version
-       VERSION=`@abs_top_srcdir@/build-tools/git-version @abs_top_srcdir@ "@VERSION@"` && \
-       echo 'char cml_version_number[]="@(#) OpenAFS '$$VERSION' built ' `date +"%Y-%m-%d"` '";' >AFS_component_version_number.c && \
-       echo 'char* AFSVersion = "${PACKAGE} '$$VERSION'";' >>AFS_component_version_number.c
+       ( VERSION=`@abs_top_srcdir@/build-tools/git-version @abs_top_srcdir@ "@VERSION@"` && \
+       if [ "$$SOURCE_DATE_EPOCH" ]; then \
+            echo 'char cml_version_number[]="@(#)OpenAFS '$$VERSION `date -u -d "@$$SOURCE_DATE_EPOCH" +"%Y-%m-%d" 2>/dev/null || date -u -r "$$SOURCE_DATE_EPOCH" +"%Y-%m-%d"`'";'; \
+       else \
+            echo 'char cml_version_number[]="@(#)OpenAFS '$$VERSION `date +"%Y-%m-%d"` $$USER@`hostname`'";'; \
+       fi >AFS_component_version_number.c.NEW && \
+       echo 'char* AFSVersion = "${PACKAGE} '$$VERSION'";' >>AFS_component_version_number.c.NEW && \
+       if cmp AFS_component_version_number.c.NEW AFS_component_version_number.c > /dev/null 2>&1 ; then : ; else \
+       mv AFS_component_version_number.c.NEW AFS_component_version_number.c ; fi )
+       rm -f AFS_component_version_number.c.NEW
 
 version.xml:
        VERSION=`@abs_top_srcdir@/build-tools/git-version @abs_top_srcdir@ "@VERSION@"` && \