Description: Make the output of latex \year macro reproducible
Author: Paolo Greppi <paolo.greppi@libpf.com>
Last-Update: 2022-07-16

Index: doxygen/doc/Makefile.latex
===================================================================
--- doxygen.orig/doc/Makefile.latex
+++ doxygen/doc/Makefile.latex
@@ -16,10 +16,10 @@ all: doxygen_manual.pdf
 
 doxygen_manual.pdf: doxygen_manual.tex doxygen.sty
 	echo "Running latex..."
-	pdflatex -cnf-line="openout_any=r" doxygen_manual.tex
+	faketime @$(SOURCE_DATE_EPOCH) pdflatex -cnf-line="openout_any=r" doxygen_manual.tex
 	echo "Running makeindex..."
 	makeindex doxygen_manual.idx
 	echo "Rerunning latex...."
-	pdflatex -cnf-line="openout_any=r" doxygen_manual.tex
+	faketime @$(SOURCE_DATE_EPOCH) pdflatex -cnf-line="openout_any=r" doxygen_manual.tex
 clean:
 	rm -f *.ps *.dvi *.aux *.toc *.idx *.ind *.ilg *.log doxygen_manual.pdf
Index: doxygen/doc/CMakeLists.txt
===================================================================
--- doxygen.orig/doc/CMakeLists.txt
+++ doxygen/doc/CMakeLists.txt
@@ -201,9 +201,9 @@ add_custom_target(doxygen_pdf
         COMMAND ${CMAKE_COMMAND} -E copy ${PROJECT_BINARY_DIR}/doc/doxygen_manual.tex  .
         COMMAND ${CMAKE_COMMAND} -E copy ${PROJECT_BINARY_DIR}/doc/manual.sty  .
         COMMAND ${CMAKE_COMMAND} -E copy ${PROJECT_SOURCE_DIR}/doc/doxygen_logo.pdf  .
-        COMMAND ${PDFLATEX}  -cnf-line="openout_any=r" -shell-escape doxygen_manual.tex
+        COMMAND faketime @$ENV{SOURCE_DATE_EPOCH} ${PDFLATEX}  -cnf-line="openout_any=r" -shell-escape doxygen_manual.tex
         COMMAND ${MAKEINDEX} doxygen_manual.idx
-        COMMAND ${PDFLATEX}  -cnf-line="openout_any=r" -shell-escape doxygen_manual.tex
+        COMMAND faketime @$ENV{SOURCE_DATE_EPOCH} ${PDFLATEX}  -cnf-line="openout_any=r" -shell-escape doxygen_manual.tex
         DEPENDS run_doxygen
         WORKING_DIRECTORY ${PROJECT_BINARY_DIR}/latex
 )