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  • Committer: Amos Jeffries
  • Date: 2016-11-20 09:12:00 UTC
  • mfrom: (14178.1.18 regex)
  • Revision ID: squid3@treenet.co.nz-20161120091200-6igx73hewk83nydi
C++11: Remove GnuRegex and all -lregex related code

Squid is now exclusively using the STL std::regex API provided on all
operating systems in a portable manner.

We no longer have any need of detecting if the system is providing a
libregex, or user has configured one, or if it actually works, or how
to call it, or use the GnuRegex code as a backup when one of those
complex details goes wrong.

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acinclude/lib-checks.m4
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])
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dnl check whether regex works by actually compiling one
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dnl sets squid_cv_regex_works to either yes or no
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AC_DEFUN([SQUID_CHECK_REGEX_WORKS],[
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  AC_CACHE_CHECK([if the system-supplied regex lib actually works],squid_cv_regex_works,[
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    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
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#if HAVE_SYS_TYPES_H
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#include <sys/types.h>
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#endif
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#if HAVE_REGEX_H
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#include <regex.h> 
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#endif
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]], [[
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regex_t t; regcomp(&t,"",0);]])],
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    [ squid_cv_regex_works=yes ],
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    [ squid_cv_regex_works=no ])
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  ])
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])
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AC_DEFUN([SQUID_CHECK_LIBIPHLPAPI],[
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  AC_CACHE_CHECK([for libIpHlpApi],squid_cv_have_libiphlpapi,[
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    SQUID_STATE_SAVE(iphlpapi)