Re: [EXT]Re: Beginner question: How to build meta post only

Am Fr., 12. Dez. 2025 um 23:58 Uhr schrieb Karl Berry <[email protected]>:
>
> std300, please see:
> https://tug.org/texlive/doc/tlbuild.html#Build-one-engine
>
> The missing, and unfortunate, step is having to run a separate make to
> build the engine (make mpost in your case) after the main make.

Thank you, Karl, I get closer.

Now I get an error:

cd texk/web2c
make mpost

...
(mplibps.h).
Done.
(No errors were found.)
CWEBINPUTS=../../../texk/web2c/mplibdir AM_V_P=: /bin/sh ./tangle-sh
mplibps.h ./ctangle psout
tangle-sh: checking for mplibps.h ... ok
gcc -DHAVE_CONFIG_H -I. -I../../../texk/web2c -I./w2c
-I/Users/patrick/tmp/tex/texlive-source/work/libs/libpng/include
-I/Users/patrick/tmp/tex/texlive-source/work/libs/zlib/include
-I/Users/patrick/tmp/tex/texlive-source/work/texk
-I/Users/patrick/tmp/tex/texlive-source/texk -DNO_DEBUG
-I../../../texk/web2c/mplibdir  -Wimplicit -Wreturn-type -g -O2 -MT
libmplibcore_a-tfmin.o -MD -MP -MF .deps/libmplibcore_a-tfmin.Tpo -c
-o libmplibcore_a-tfmin.o `test -f 'tfmin.c' || echo
'../../../texk/web2c/'`tfmin.c
mv -f .deps/libmplibcore_a-tfmin.Tpo .deps/libmplibcore_a-tfmin.Po
gcc -DHAVE_CONFIG_H -I. -I../../../texk/web2c -I./w2c
-I/Users/patrick/tmp/tex/texlive-source/work/libs/libpng/include
-I/Users/patrick/tmp/tex/texlive-source/work/libs/zlib/include
-I/Users/patrick/tmp/tex/texlive-source/work/texk
-I/Users/patrick/tmp/tex/texlive-source/texk -DNO_DEBUG
-I../../../texk/web2c/mplibdir  -Wimplicit -Wreturn-type -g -O2 -MT
libmplibcore_a-mp.o -MD -MP -MF .deps/libmplibcore_a-mp.Tpo -c -o
libmplibcore_a-mp.o `test -f 'mp.c' || echo
'../../../texk/web2c/'`mp.c
../../../texk/web2c/mplibdir/mp.w:191:10: fatal error: 'png.h' file not found
  191 | #include <png.h>
      |          ^~~~~~~
1 error generated.

I assume that a system png library is not used. Any idea?


Thanks
Patrick