Zabbix

...G...... [ZBX-26640] fixed Zabbix agent built with statically linked curl library crashing on web.page.get[] items

Merge in ZBX/zabbix from feature/ZBX-26640-7.0 to release/7.0

* commit '7547faaa68a8c38ea08ebc260e5b858114d80112':
  ...G...... [ZBX-26640] reverted libcurl.m4 for support --enable-static-libs option
  ...G...... [ZBX-26640] fixed libcurl.m4 for support --enable-static-libs option
  ...G...... [ZBX-26640] changed configure.ac condition
  ...G...... [ZBX-26640] changed ifdef conditions
  ...G...... [ZBX-26640] fixed and improved the solution
  ...G...... [ZBX-26640] fixed description of STATIC_LINKING macro
  ...G...... [ZBX-26640] fixed Zabbix agent built with statically linked curl library crashing on web.page.get[] items

(cherry picked from commit 9e50730cbc0f2fdba25df42ecd15eade19c6f042)