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e2bce0f3ec
Otherwise we will reference the dependant libraries with -lfoo rather than /path/to/libfoo.la which breaks with the Android-based .la parser which simply passes through all -l libraries. https://bugzilla.gnome.org/show_bug.cgi?id=786403
161 lines
4.6 KiB
Makefile
161 lines
4.6 KiB
Makefile
# we have to put in a little hack here for integration to work well
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# libav can't be in SUBDIRS, because then automake will try to descend in it
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# and find conditionals it doesn't know.
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# so,
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# - don't put it in SUBDIRS so automake doesn't descend
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# - put it in DIST_SUBDIRS so make dist picks up the subtree
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# - add an all-local hook so it does get built
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# this also satisfies make distcheck
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SUBDIRS =
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DIST_SUBDIRS = libav
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TMP_DIST_DIR=libav-dist
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DIST_DIR=$(TMP_DIST_DIR)/.libav
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EXTRA_DIST=Makefile.am
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MAINTAINERCLEANDIRS = $(DIST_SUBDIRS)
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LIB_LIST=libavutil libswresample libavcodec libavformat libavfilter
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# attempt to generate .la references from -l and a list of -L
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# $1 is the argument to filter, -l, -L, -I, etc
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# $2 is the list to filter
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define filter_arg
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$(foreach item,$(filter $(1)%,$(2)),$(patsubst $(1)%,%,$(item)))
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endef
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# $1 library to find
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# $2 directories to search
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define find_la
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$(firstword $(wildcard $(foreach path,$(call filter_arg,-L,$(2)), $(path)/lib$(strip $(call filter_arg,-l,$(1))).la)))
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endef
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# $(call find_la,...) and if a library is found use that, otherwise, return the
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# original lib unchanged
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define find_la_or_original
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$(if $(strip $(call find_la,$1,$2)),$(call find_la,$1,$2),$(1))
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endef
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# $1 the libraries to look for (including -l) e.g. -lbz2 -lz
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# $2 LDFLAGS containing -L arguments
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define find_library_la
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$(foreach lib,$(1),$(call find_la_or_original,$(lib),$(2)))
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endef
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define create_la
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echo " GEN $1.la" && \
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(echo "# $1.la - a libtool library file" && \
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echo "# Generated by libtool (GNU libtool) 2.4.6" && \
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echo "dlname=''" && \
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echo "library_names=''" && \
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echo "old_library='$1.a'" && \
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echo "inherited_linker_flags=''" && \
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echo "dependency_libs=' -L$(libdir) $(if $2,$(foreach dep,$2,$(abs_builddir)/$(dep).la)) $(call find_library_la,$3 $(LIBM),$(LDFLAGS)) '" && \
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echo "weak_library_names=''" && \
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echo "current=" && \
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echo "age=" && \
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echo "revision=" && \
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echo "installed=no" && \
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echo "shouldnotlink=no" && \
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echo "dlopen=''" && \
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echo "dlpreopen=''" && \
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echo "libdir='$(libdir)'") > $1.la
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endef
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libavutil.la:
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$(AM_V_at)$(call create_la,libavutil)
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libswresample.la:
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$(AM_V_at)$(call create_la,libswresample,libavutil)
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libavcodec.la:
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$(AM_V_at)$(call create_la,libavcodec,libswresample libavutil,-lz $(LZMA_LIBS))
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libavformat.la:
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$(AM_V_at)$(call create_la,libavformat,libavcodec libavutil,$(LIBM) -lz $(BZ2_LIBS))
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libavfilter.la:
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$(AM_V_at)$(call create_la,libavfilter,libavformat libavcodec libswresample libavutil)
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all-local: $(foreach lib,$(LIB_LIST),$(lib).la)
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cd libav && $(MAKE)
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$(AM_V_at)$(MKDIR_P) .libs
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$(AM_V_at)for lib in $(LIB_LIST); do \
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if ! test -f .libs/$${lib}.a; then \
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echo " CP $${lib}"; \
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cp libav/$${lib}/$${lib}.a .libs/$${lib}.a; \
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fi; \
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done
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if GST_PLUGIN_BUILD_STATIC
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define install_la
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echo " INSTALL $1.la" && \
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sed -e "s|$(abs_builddir)|$(libdir)|g" \
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-e "s|installed=no|installed=no|" \
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$1.la > $(DESTDIR)$(libdir)/$1.la
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endef
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# Normally DATA is built before am-local, fix it
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.libs/libavutil.a: all-local
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.libs/libswresample.a: all-local
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.libs/libavcodec.a: all-local
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.libs/libavformat.a: all-local
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.libs/libavfilter.a: all-local
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depsdir = $(libdir)
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nodist_deps_DATA = \
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.libs/libavutil.a \
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.libs/libswresample.a \
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.libs/libavcodec.a \
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.libs/libavformat.a \
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.libs/libavfilter.a
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install-data-hook:
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$(AM_V_at)$(call install_la,libavutil)
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$(AM_V_at)$(call install_la,libswresample)
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$(AM_V_at)$(call install_la,libavcodec)
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$(AM_V_at)$(call install_la,libavformat)
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$(AM_V_at)$(call install_la,libavfilter)
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endif
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clean-local:
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cd libav && $(MAKE) clean
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rm -rf .libs
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rm -f *.la
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dist-clean:
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cd libav && $(MAKE) distclean
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rm -rf libav/$(TMP_DIST_DIR)
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rm -f Makefile
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rm -f libav/.version
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rm -f libav/.config
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distclean: dist-clean
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maintainer-clean: distclean
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rm -rf $(MAINTAINERCLEANDIRS)
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maintainerclean: maintainer-clean
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dist-local:
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GIT_DIR=$(srcdir)/libav/.git git checkout-index --prefix=$(abs_builddir)/libav/$(TMP_DIST_DIR)/libav/ -a
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touch libav/$(TMP_DIST_DIR)/libav/config.mak
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echo "Patching libav ./configure"
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sed -e '/Unknown option/ {N;N;s/exit 1//; }' libav/$(TMP_DIST_DIR)/libav/configure > libav/$(TMP_DIST_DIR)/libav/configure.tmp
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mv libav/$(TMP_DIST_DIR)/libav/configure.tmp libav/$(TMP_DIST_DIR)/libav/configure
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chmod +x libav/$(TMP_DIST_DIR)/libav/configure
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distdir: dist-local
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cp -r libav/$(TMP_DIST_DIR)/libav ${distdir}
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cp -f $(top_srcdir)/gst-libs/ext/Makefile.am $(top_srcdir)/gst-libs/ext/Makefile.in ${distdir}
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rm -rf libav/$(TMP_DIST_DIR)
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dist: dist-local
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cd libav/$(TMP_DIST_DIR) && tar -czf libav.tar.gz libav
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mv libav/$(TMP_DIST_DIR)/libav.tar.gz ./
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rm -rf libav/$(TMP_DIST_DIR)
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