On Thu, Oct 12, 2017 at 04:06:11PM -0400, Jeffrey Walton wrote: > I have a script to build Git on some old platforms to ease testing. > Old platforms include CentOS 5. The script is available at > https://github.com/noloader/Build-Scripts/blob/master/build-ssh.sh. > > It looks like something got knocked loose recently. I'm seeing several > of these when building with PCRE 8.41 with Git 2.14.2. Old and new > platforms are witnessing it. I observe it on CentOS 5 with GCC 4.1; > and Fedora 26 with GCC 7.2. > > ... > LINK git-credential-store > libgit.a(grep.o): In function `pcre1match': > grep.c:(.text+0x1219): undefined reference to `pcre_jit_exec' > collect2: error: ld returned 1 exit status > make: *** [Makefile:2145: git-credential-store] Error 1 Maybe: $ git grep -h -B5 -A1 pcre_jit Makefile # When using USE_LIBPCRE1, define NO_LIBPCRE1_JIT if the PCRE v1 # library is compiled without --enable-jit. We will auto-detect # whether the version of the PCRE v1 library in use has JIT support at # all, but we unfortunately can't auto-detect whether JIT support # hasn't been compiled in in an otherwise JIT-supporting version. If # you have link-time errors about a missing `pcre_jit_exec` define # this, or recompile PCRE v1 with --enable-jit. It looks like autoconf turns on USE_LIBPCRE1, but isn't smart enough to test NO_LIBPCRE1_JIT. -Peff
