[tlbuild] Failure to build mpfr from TL: 'gmp.h' file not found

Mojca Miklavec mojca.miklavec.lists at gmail.com
Mon Jun 29 20:23:22 CEST 2020


I installed a new VM with OpenBSD 6.7 and tried to install just the
bare minimum of packages.

Apparently the build now fails when configuring mpfr.

configure:6707: cc -c -g -O2 --float-store
-I/path/to/texlive/source/Work/libs/gmp/include conftest.c >&5
conftest.c:66:10: fatal error: 'gmp.h' file not found
#include <gmp.h>

The file gmp.h is present under
but not under gmp/include/gmp.h as the include path suggests.

I suspect that the problem might generally be hidden since it's easy
to find this header elsewhere on the system, but I don't know for

The configure line likely comes from TeX Live's own mpfr/configure.ac:
    AC_CHECK_HEADER([gmp.h], [], [AC_MSG_ERROR[gmp.h not found]])
maybe the command
doesn't take all corner cases into account and adds the "include/"
folder to the include path which happens to be missing in the build
tree for gmp.


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