[FFmpeg-devel] [PATCH 1/3] fftools/resources: fix preservation of intermediary resman build artifacts

[softworkz .]

> -----Original Message-----
> From: ffmpeg-devel <ffmpeg-devel-bounces at ffmpeg.org> On Behalf Of Timo
> Rothenpieler
> Sent: Samstag, 17. Mai 2025 01:02
> To: ffmpeg-devel at ffmpeg.org
> Cc: Timo Rothenpieler <timo at rothenpieler.org>
> Subject: [FFmpeg-devel] [PATCH 1/3] fftools/resources: fix preservation of
> intermediary resman build artifacts
> 
> Without this, make install triggers a full re-generation of the graph
> stuff, which results in re-linking during install.
> ---
>  ffbuild/common.mak         | 3 +--
>  fftools/resources/Makefile | 5 ++---
>  2 files changed, 3 insertions(+), 5 deletions(-)
> 
> diff --git a/ffbuild/common.mak b/ffbuild/common.mak
> index 0e1eb1f62b..4a3cc0c748 100644
> --- a/ffbuild/common.mak
> +++ b/ffbuild/common.mak
> @@ -229,10 +229,9 @@ SKIPHEADERS += $(ARCH_HEADERS:%=$(ARCH)/%) $(SKIPHEADERS-
> )
>  SKIPHEADERS := $(SKIPHEADERS:%=$(SUBDIR)%)
>  HOBJS        = $(filter-out $(SKIPHEADERS:.h=.h.o),$(ALLHEADERS:.h=.h.o))
>  PTXOBJS      = $(filter %.ptx.o,$(OBJS))
> -RESOURCEOBJS = $(filter %.css.o %.html.o,$(OBJS))
>  $(HOBJS):     CCFLAGS += $(CFLAGS_HEADERS)
>  checkheaders: $(HOBJS)
> -.SECONDARY:   $(HOBJS:.o=.c) $(PTXOBJS:.o=.c) $(PTXOBJS:.o=.gz)
> $(PTXOBJS:.o=) $(RESOURCEOBJS:.o=.c) $(RESOURCEOBJS:%.css.o=%.css.min)
> $(RESOURCEOBJS:%.css.o=%.css.min.gz) $(RESOURCEOBJS:%.html.o=%.html.gz)
> $(RESOURCEOBJS:.o=)
> +.SECONDARY:   $(HOBJS:.o=.c) $(PTXOBJS:.o=.c) $(PTXOBJS:.o=.gz)
> $(PTXOBJS:.o=)
> 
>  alltools: $(TOOLS)
> 
> diff --git a/fftools/resources/Makefile b/fftools/resources/Makefile
> index 8579a52678..3a307bef12 100644
> --- a/fftools/resources/Makefile
> +++ b/fftools/resources/Makefile
> @@ -4,10 +4,9 @@ clean::
>  vpath %.html $(SRC_PATH)
>  vpath %.css  $(SRC_PATH)
> 
> -# Uncomment to prevent deletion during build
> -#.PRECIOUS: %.css.c %.css.min %.css.gz %.css.min.gz %.html.gz %.html.c
> -
>  OBJS-resman +=                     \
>      fftools/resources/resman.o     \
>      fftools/resources/graph.html.o \
>      fftools/resources/graph.css.o  \
> +
> +.SECONDARY: $(OBJS-resman:.o=.c) $(OBJS-resman:.css.o=.css.min) $(OBJS-
> resman:.css.o=.css.min.gz) $(OBJS-resman:.html.o=.html.gz)
> --

Hi,

I managed to hunt down the underlying problem for why the preservation even 
appeared to be needed. Please see my upcoming patch
"ffbuild/commonmak: Fix rebuild check with implicit rule chains"

Thanks
sw