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AC_PREREQ([2.68])
AC_INIT([libvmod-re2], [2.0.0], [varnish-support@uplex.de], [vmod-re2])
AC_COPYRIGHT([Copyright 2016-2017 UPLEX - Nils Goroll Systemoptimierung])
AC_CONFIG_MACRO_DIR([m4])
AC_CONFIG_AUX_DIR([build-aux])
AC_CONFIG_SRCDIR(src/vmod_re2.vcc)
AC_CONFIG_HEADER([config.h])
AC_CANONICAL_SYSTEM
AC_LANG(C)
AM_INIT_AUTOMAKE([1.12 -Wall -Werror foreign parallel-tests])
AM_SILENT_RULES([yes])
AM_PROG_AR
LT_PREREQ([2.2.6])
LT_INIT([dlopen disable-static])
AX_PTHREAD(,[AC_MSG_ERROR([Could not configure pthreads support])])
LIBS="$PTHREAD_LIBS $LIBS"
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
CC="$PTHREAD_CC"
AC_ARG_WITH([rst2man],
[AS_HELP_STRING(
[--with-rst2man=PATH],
[Location of rst2man (auto)])],
[RST2MAN="$withval"],
[AC_CHECK_PROGS(RST2MAN, [rst2man rst2man.py], [])])
AC_ARG_WITH([lcov],
[AS_HELP_STRING(
[--with-lcov=PATH],
[Location of lcov to generate coverage data (auto)])],
[LCOV="$withval"],
[AC_CHECK_PROGS(LCOV, [lcov], [])])
AM_CONDITIONAL(HAVE_LCOV, [test -n "$LCOV"])
AC_ARG_WITH([genhtml],
[AS_HELP_STRING(
[--with-genhtml=PATH],
[Location of genhtml to generate coverage reports (auto)])],
[GENHTML="$withval"],
[AC_CHECK_PROGS(GENHTML, [genhtml], [])])
AM_CONDITIONAL(HAVE_GENHTML, [test -n "$GENHTML"])
AC_ARG_WITH([pandoc],
[AS_HELP_STRING(
[--with-pandoc=PATH],
[Location of pandoc to generate README.md (auto)])],
[PANDOC="$withval"],
[AC_CHECK_PROGS(PANDOC, [pandoc], [])])
AM_CONDITIONAL(HAVE_PANDOC, [test -n "$PANDOC"])
m4_ifndef([VARNISH_PREREQ], AC_MSG_ERROR([Need varnish.m4 -- see INSTALL.rst]))
PKG_CHECK_MODULES([RE2], [re2])
if echo "$RE2_LIBS" | grep -- '-L' >/dev/null ; then
if echo "$RE2_LIBS" | grep -- '-R' >/dev/null ; then
:
else
RE2_LIBS=[$(echo $RE2_LIBS | sed 's:-L\([^ ]*\):-L\1 -R\1:')]
fi
fi
VARNISH_VMODS([re2])
VMOD_TESTS="$(cd $srcdir/src && echo tests/*.vtc)"
AC_SUBST(VMOD_TESTS)
PKG_CHECK_VAR([LIBVARNISHAPI_LIBDIR], [varnishapi], [libdir])
AC_SUBST([VARNISH_LIBRARY_PATH],
[$LIBVARNISHAPI_LIBDIR:$LIBVARNISHAPI_LIBDIR/varnish])
AC_CONFIG_FILES([
Makefile
src/Makefile
])
AM_CONDITIONAL(HAVE_RST2MAN, [test "x$RST2MAN" != "xno"])
AC_PROG_CPP
AC_PROG_CXX
AC_PROG_CXXCPP
# Checks for C sources
AC_CHECK_FUNCS([strdup])
AC_C_INLINE
AC_C_RESTRICT
AC_TYPE_SIZE_T
AC_FUNC_REALLOC
# Checks for C++ sources
AC_FUNC_ERROR_AT_LINE
AC_CHECK_HEADER_STDBOOL
# Check RE2 capabilities
AC_LANG(C++)
SAVE_CXXFLAGS="$CXXFLAGS"
SAVE_LDFLAGS="$LDFLAGS"
CXXFLAGS+=" -std=c++14"
LDFLAGS+=" -lre2"
# Check if the Set::Match() method supports error reporting, to notify
# if a match failed due to the DFA hitting the max_mem
# limit. Available since RE2 commit ee52f03, or since version
# 2017-12-01.
AC_MSG_CHECKING([for RE2::Set::Match() with ErrorInfo])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <re2/set.h>]], [[
re2::RE2::Set s(re2::RE2::DefaultOptions, re2::RE2::UNANCHORED);
s.Match("", NULL, NULL)]])],
[AC_MSG_RESULT([yes])
AC_DEFINE([HAVE_SET_MATCH_ERRORINFO], [1],
[Define to 1 if RE2::Set::Match() has the ErrorInfo parameter])
],
[AC_MSG_RESULT([no])
AC_DEFINE([HAVE_SET_MATCH_ERRORINFO], [0],
[Define to 1 if RE2::Set::Match() has the ErrorInfo parameter])
])
# RE2 versions up to 2016-03-01 require a pointer to vector<int> in
# Set::Match(), to identify the regex that was matched. Since commit
# df7a2dc in re2, the pointer may be NULL, if we just want to know
# whether there was a match. This check tests for that feature.
# Note: the test may cause a core dump if it fails.
AC_MSG_CHECKING([for RE2::Set::Match() with NULL index vector])
AC_RUN_IFELSE(
[AC_LANG_SOURCE([[
#include "re2/set.h"
main() {
re2::RE2::Set s(re2::RE2::DefaultOptions, re2::RE2::UNANCHORED);
s.Add("", NULL);
s.Compile();
s.Match("", NULL);
}
]])],
[AC_MSG_RESULT([yes])
AC_DEFINE([HAVE_SET_MATCH_NULL_VECTOR], [1],
[Define to 1 if RE2 Set::Match() permits a NULL vector])
],
[AC_MSG_RESULT([no])
AC_DEFINE([HAVE_SET_MATCH_NULL_VECTOR], [0],
[Define to 1 if RE2 Set::Match() permits a NULL vector])
])
CXXFLAGS="$SAVE_CXXFLAGS"
LDFLAGS="$SAVE_LDFLAGS"
AC_LANG(C)
# --enable-stack-protector
AC_ARG_ENABLE(stack-protector,
AS_HELP_STRING([--enable-stack-protector],[enable stack protector (default is YES)]),
[],
[enable_stack_protector=yes])
if test "x$enable_stack_protector" != "xno"; then
AX_CHECK_COMPILE_FLAG([-fstack-protector],
AX_CHECK_LINK_FLAG([-fstack-protector],
[CFLAGS="${CFLAGS} -fstack-protector"], [], []),
[], [])
AC_LANG_PUSH(C++)
AX_CHECK_COMPILE_FLAG([-fstack-protector],
AX_CHECK_LINK_FLAG([-fstack-protector],
[CXXFLAGS="${CXXFLAGS} -fstack-protector"], [], []),
[], [])
AC_LANG_POP()
fi
# --enable-debugging
AC_ARG_ENABLE(debugging,
AS_HELP_STRING([--enable-debugging],[enable debugging (default is NO)]),
[],
[enable_debugging=no])
# AC_PROG_CC and AC_PROG_CXX set CFLAGS and CXXFLAGS to '-g -O2'
# unless already set, so there's no need to add -g. Disable or change
# by explicitly setting CFLAGS and/or CXXFLAGS. If this option is
# enabled, then -Og or -O0 becomes the last optimization option, and
# hence takes precedence.
if test "x$enable_debugging" != "xno"; then
CFLAGS="${CFLAGS} -fno-inline"
AX_CHECK_COMPILE_FLAG([-Og],
[CFLAGS="${CFLAGS} -Og"],
[CFLAGS="${CFLAGS} -O0"],
[])
AC_LANG_PUSH(C++)
CXXFLAGS="${CXXFLAGS} -fno-inline"
AX_CHECK_COMPILE_FLAG([-Og],
[CXXFLAGS="${CXXFLAGS} -Og"],
[CXXFLAGS="${CXXFLAGS} -O0"],
[])
AC_LANG_POP()
fi
AC_OUTPUT
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