This really confuses me during configure :
alpha$
alpha$ head config.log
This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.
It was created by GNU grep configure 3.12, which was
generated by GNU Autoconf 2.72.76-2f64. Invocation command line was
$ ./configure --prefix=/opt/bw --disable-silent-rules
--enable-dependency-tracking --enable-threads=posix
--enable-gcc-warnings=no --with-libsigsegv
--with-libsigsegv-prefix=/opt/bw --with-libiconv-prefix=/opt/bw
--with-gnu-ld '--with-packager=GENUNIX Tue Apr 7 22:59:10 UTC 2026'
## --------- ##
## Platform. ##
alpha$
that configure line spits out :
configure: error: no working 'grep' found
A working 'grep' command is needed to build GNU Grep.
This 'grep' should support -e and long lines.
On Solaris 10, install the package SUNWggrp or SUNWxcu4.
On Solaris 11, install the package text/gnu-grep or system/xopen/xcu4.
alpha$
This is an OpenBSD 7.8 machine and I have already built GNU grep at
least four times and managed to get good results. The binaries are on
the PATH right away :
alpha$ which grep
/opt/bw/bin/grep
alpha$ ls -l /opt/bw/bin/grep
-rwxr-xr-x 1 root wheel 822658 Apr 7 22:47 /opt/bw/bin/grep
alpha$ /opt/bw/bin/grep --version
grep (GNU grep) 3.12
Packaged by GENUNIX Tue Apr 7 21:25:26 UTC 2026
Copyright (C) 2025 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later
<https://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Written by Mike Haertel and others; see
<https://git.savannah.gnu.org/cgit/grep.git/tree/AUTHORS>.
grep -P uses PCRE2 10.47 2025-10-21
alpha$
alpha$
alpha$ ldd /opt/bw/bin/grep
/opt/bw/bin/grep:
Start End Type Open Ref GrpRef Name
0000000030ab0000 0000000030b66000 exe 1 0 0
/opt/bw/bin/grep
000000007e106000 000000007e13c000 rlib 0 1 0
/opt/bw/lib/libsigsegv.so.2.8
00000000a01bc000 00000000a029c000 rlib 0 1 0
/opt/bw/lib/libpcre2-8.so.15.0
0000000092862000 0000000092998000 rlib 0 1 0
/usr/lib/libc.so.102.0
000000008a530000 000000008a530000 ld.so 0 1 0
/usr/libexec/ld.so
alpha$
Also there is the system grep from the OpenBSD folks.
Is there some magic I am missing ?
--
--
Dennis Clarke
RISC-V/SPARC/PPC/ARM/CISC
UNIX and Linux spoken
