Source: yacas Version: 1.3.6-2 Tags: patch User: helm...@debian.org Usertags: rebootstrap
yacas fails to cross build from source. The immediate failure is failing to pass --host to ./configure. This can be solved by running ./configure through dh_auto_configure. Additional configure flags can be passed to dh_auto_configure after a "--". Then it tries to run code generators in the manmake directory for the host architecture. Such generators need to be built with the built architecture compiler. The autoconf-archive provides a macro AX_PROG_CXX_FOR_BUILD to discover this compiler and the attached patch demonstrates how to use it. Unfortunately, LT_INIT and AX_PROG_CXX_FOR_BUILD don't work well together (#924415), so I'm providing an additional workaround here. After fixing these, the build of yacas itself succeeds, but the texdocs target runs yacas. I fear we won't be able to generate the documentation in a cross build, but since yacas-doc is an Architecture: all package, that can be avoided in principle. This may sound very complicated, but it really boils down to three things: 1. Run ./configure through dh_auto_configure. 2. Apply my patch to make the manpage generators work. 3. Avoid building documentation in an arch-only build. I haven't provided a solution for the third part here. Please close this bug if you fix 1 and 2. If you need help, please ask. Helmut
--- yacas-1.3.6.orig/configure.ac +++ yacas-1.3.6/configure.ac @@ -15,6 +15,8 @@ AC_PROG_CC AC_PROG_CPP AC_PROG_CXX +m4_defun([_LT_LANG_CXX_FOR_BUILD_CONFIG],[])dnl make LT_LANG happy +AX_PROG_CXX_FOR_BUILD AC_CHECK_PROG(have_perl, perl, yes, no) AC_CHECK_PROG(have_pdflatex, pdflatex, yes, no) --- yacas-1.3.6.orig/manmake/Makefile.am +++ yacas-1.3.6/manmake/Makefile.am @@ -11,13 +11,13 @@ ## PDF_DOCS is either "pdf-docs" or empty all-am: @BOOKS_HTML@ @PDF_DOCS@ hints -noinst_PROGRAMS = manripper removeduplicates - -manripper_SOURCES = manripper.cpp +manripper$(BUILD_EXEEXT): manripper.cpp + $(CXX_FOR_BUILD) -o $@ $^ -removeduplicates_SOURCES = removeduplicates.cpp +removeduplicates$(BUILD_EXEEXT): removeduplicates.cpp + $(CXX_FOR_BUILD) -o $@ $^ -hints: manripper removeduplicates $(REFSOURCES) $(REFPROGSOURCES) ref.book.txt refprog.book.txt +hints: manripper$(BUILD_EXEEXT) removeduplicates$(BUILD_EXEEXT) $(REFSOURCES) $(REFPROGSOURCES) ref.book.txt refprog.book.txt rm -f hints.unsorted for file in ref.book.txt $(REFSOURCES) refprog.book.txt $(REFPROGSOURCES); do \ ./manripper $(srcdir)/"$$file" >> hints.unsorted ; done
