diff options
| author | Donatas Abraitis <donatas@opensourcerouting.org> | 2022-10-31 21:23:51 +0100 |
|---|---|---|
| committer | Donatas Abraitis <donatas@opensourcerouting.org> | 2022-11-07 20:23:53 +0100 |
| commit | 061f5d1cb43938c30847e0ebb49e2b43be3aa4c2 (patch) | |
| tree | 5651724c843b645650c1a025c4223f6b29eeddfe /configure.ac | |
| parent | docker: Reuse all possible cores when building FRR for Alpine (diff) | |
| download | frr-061f5d1cb43938c30847e0ebb49e2b43be3aa4c2.tar.xz frr-061f5d1cb43938c30847e0ebb49e2b43be3aa4c2.zip | |
lib: Add PCRE2 support
Some results:
```
====
PCRE
====
% ./a.out "^65001" "65001"
comparing: ^65001 / 65001
ret status: 0
[14:31] donatas-pc donatas /home/donatas
% ./a.out "^65001_" "65001"
comparing: ^65001_ / 65001
ret status: 0
=====
PCRE2
=====
% ./a.out "^65001" "65001"
comparing: ^65001 / 65001
ret status: 0
[14:30] donatas-pc donatas /home/donatas
% ./a.out "^65001_" "65001"
comparing: ^65001_ / 65001
ret status: 1
```
Seems that if using PCRE2, we need to escape outer `()` chars and `|`. Sounds
like a bug.
But this is only with some older PCRE2 versions. With >= 10.36, I wasn't able
to reproduce this, everything is fine and working as expected.
Adding _FRR_PCRE2_POSIX definition because pcre2posix.h does not have
include's guard.
Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 1a481ecd7..97c8ca451 100644 --- a/configure.ac +++ b/configure.ac @@ -712,6 +712,8 @@ AC_ARG_ENABLE([cpu-time], AS_HELP_STRING([--disable-cpu-time], [disable cpu usage data gathering])) AC_ARG_ENABLE([pcreposix], AS_HELP_STRING([--enable-pcreposix], [enable using PCRE Posix libs for regex functions])) +AC_ARG_ENABLE([pcre2posix], + AS_HELP_STRING([--enable-pcre2posix], [enable using PCRE2 Posix libs for regex functions])) AC_ARG_ENABLE([fpm], AS_HELP_STRING([--enable-fpm], [enable Forwarding Plane Manager support])) AC_ARG_ENABLE([werror], @@ -1659,6 +1661,16 @@ if test "$enable_pcreposix" = "yes"; then fi AC_SUBST([HAVE_LIBPCREPOSIX]) +dnl --------------------------- +dnl check system has PCRE2 regexp +dnl --------------------------- +if test "$enable_pcre2posix" = "yes"; then + AC_CHECK_LIB([pcre2-posix], [regexec], [], [ + AC_MSG_ERROR([--enable-pcre2posix given but unable to find libpcre2-posix]) + ]) +fi +AC_SUBST([HAVE_LIBPCRE2_POSIX]) + dnl ########################################################################## dnl test "$enable_clippy_only" != "yes" fi |