I tried to compile a PHP 7.1.5 with PCRE 8.40 on a legacy Ubuntu 12.04.05 LTS:
1, I compiled PCRE 8.40 from source to /usr/local/pcre.
2, configure PHP:
./configure --prefix=/usr/local/php7 --with-pcre-regex=/usr/local/pcre --with-pcre-dir=/usr/local/pcre No error.
3, compile PHP:
make Error:
ext/pcre/.libs/php_pcre.o: In function `zm_globals_dtor_pcre': /root/php-7.1.5/ext/pcre/php_pcre.c:139: undefined reference to `pcre_jit_stack_free' ext/pcre/.libs/php_pcre.o: In function `php_free_pcre_cache': /root/php-7.1.5/ext/pcre/php_pcre.c:113: undefined reference to `pcre_free_study' ext/pcre/.libs/php_pcre.o: In function `zm_activate_pcre': /root/php-7.1.5/ext/pcre/php_pcre.c:223: undefined reference to `pcre_jit_stack_alloc' ext/pcre/.libs/php_pcre.o: In function `pcre_get_compiled_regex_cache': /root/php-7.1.5/ext/pcre/php_pcre.c:525: undefined reference to `pcre_assign_jit_stack' collect2: ld returned 1 exit status make: *** [sapi/cli/php] Error 1 I tried an experiment:
./configure --prefix=/usr/local/php7 --disable-all --with-pcre-regex=/usr/local/pcre --with-pcre-dir=/usr/local/pcre (--disable-all: Disable all extensions which are enabled by default.)
make No error, build complete.
$/usr/local/php7/bin/php -i | grep "PCRE Library Version" PCRE Library Version => 8.40 2017-01-11 Why not working when I try without --disable-all option?
