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tinyproxy/configure.ac
John Spencer 186bbc3efb configure.ac: remove check for broken regex which breaks crosscompilation 
in the unlikely case that the user's C library has broken regex support,
she should probably update to a bugfree version.
in its full consequence, checking if individual functions works basically
require to test every single function in use, which is nonsensical.
since this check required to compile and run a code sample on the host,
it cannot be checked in cross-compile scenarios and as it defaulted to yes
(broken), causes build failure in any such scenario.

closes #1

Signed-off-by: John Spencer <maillist-tinyproxy@barfooze.de>
Reviewed-by: Michael Adam <obnox@samba.org>
2016-01-19 22:50:20 +01:00

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# Process this file with autoconf to produce a configure script.
# Portions of this file were adapted from GIMP.
AC_PREREQ(2.54)
m4_define([tinyproxy_major_version], [1])
m4_define([tinyproxy_minor_version], [9])
m4_define([tinyproxy_micro_version], [0])
m4_define([tinyproxy_real_version],
[tinyproxy_major_version.tinyproxy_minor_version.tinyproxy_micro_version])
m4_define([tinyproxy_version], [tinyproxy_real_version])
# For overriding the version string. Comment out if not needed.
# m4_define([tinyproxy_version], [1.9.0])
m4_define([tinyproxy_unstable],
m4_if(m4_eval(tinyproxy_minor_version % 2), [1], [yes], [no]))
m4_define([tinyproxy_stable],
m4_if(m4_eval(tinyproxy_minor_version % 2), [0], [yes], [no]))
AC_INIT([Tinyproxy], [tinyproxy_version],
[https://tinyproxy.github.io/],
[tinyproxy])
AC_CANONICAL_TARGET
AM_INIT_AUTOMAKE([foreign dist-bzip2 dist-xz])
AC_CONFIG_HEADERS(config.h)
AC_CONFIG_MACRO_DIR([m4macros])
m4_ifdef([AM_SILENT_RULES],[AM_SILENT_RULES([yes])])
TINYPROXY_MAJOR_VERSION=tinyproxy_major_version
TINYPROXY_MINOR_VERSION=tinyproxy_minor_version
TINYPROXY_MICRO_VERSION=tinyproxy_micro_version
TINYPROXY_REAL_VERSION=tinyproxy_real_version
TINYPROXY_VERSION=tinyproxy_version
TINYPROXY_UNSTABLE=tinyproxy_unstable
AC_SUBST(TINYPROXY_MAJOR_VERSION)
AC_SUBST(TINYPROXY_MINOR_VERSION)
AC_SUBST(TINYPROXY_MICRO_VERSION)
AC_SUBST(TINYPROXY_REAL_VERSION)
AC_SUBST(TINYPROXY_VERSION)
AC_SUBST(TINYPROXY_UNSTABLE)
dnl Temporarily defined here until we get tinyproxy-version.h
AC_DEFINE(TINYPROXY_VERSION, "tinyproxy_version", [Tinyproxy version number])
# The symbol TINYPROXY_UNSTABLE is defined above for substitution in
# Makefiles and conditionally defined here as a preprocessor symbol
# and automake conditional.
if test "x$TINYPROXY_UNSTABLE" = "xyes"; then
AC_DEFINE(TINYPROXY_UNSTABLE, 1,
[Define to 1 if this is an unstable version of Tinyproxy])
fi
AM_CONDITIONAL(TINYPROXY_UNSTABLE, test "x$TINYPROXY_UNSTABLE" = "xyes")
dnl Check if we're compiling on a weird platform :)
AC_USE_SYSTEM_EXTENSIONS
dnl Set the domain name for find the statistics of tinyproxy
AH_TEMPLATE([TINYPROXY_STATHOST],
[This controls remote proxy stats display.])
AC_ARG_WITH(stathost,
[AC_HELP_STRING([--with-stathost=HOST], [Default status host])],
[AC_DEFINE_UNQUOTED(TINYPROXY_STATHOST, "$withval")
TINYPROXY_STATHOST="$withval"],
[AC_DEFINE_UNQUOTED(TINYPROXY_STATHOST, "tinyproxy.stats")
TINYPROXY_STATHOST="tinyproxy.stats"])
AC_SUBST(TINYPROXY_STATHOST)
dnl Add compiler-specific optimization flags
TP_ARG_ENABLE(debug,
[Enable debugging support code and methods (default is NO)],
no)
dnl Check to see if the XTinyproxy header is to be included
AH_TEMPLATE([XTINYPROXY_ENABLE],
[Define if you want to have the peer's IP address included in a XTinyproxy header sent to the server.])
TP_ARG_ENABLE(xtinyproxy,
[Include the X-Tinyproxy header (default is YES)],
yes)
if test x"$xtinyproxy_enabled" = x"yes"; then
AC_DEFINE(XTINYPROXY_ENABLE)
fi
dnl Include filtering for domain/URLs
AH_TEMPLATE([FILTER_ENABLE],
[Defined if you would like filtering code included.])
TP_ARG_ENABLE(filter,
[Enable filtering of domains/URLS (default is YES)],
yes)
if test x"$filter_enabled" = x"yes"; then
ADDITIONAL_OBJECTS="$ADDITIONAL_OBJECTS filter.o"
AC_DEFINE(FILTER_ENABLE)
fi
dnl Include support for upstream proxies?
AH_TEMPLATE([UPSTREAM_SUPPORT],
[Include support for connecting to an upstream proxy.])
TP_ARG_ENABLE(upstream,
[Enable upstream proxying (default is YES)],
yes)
if test x"$upstream_enabled" = x"yes"; then
AC_DEFINE(UPSTREAM_SUPPORT)
fi
dnl Include support for reverse proxy?
AH_TEMPLATE([REVERSE_SUPPORT],
[Include support for reverse proxy.])
TP_ARG_ENABLE(reverse,
[Enable reverse proxying (default is NO)],
no)
if test x"$reverse_enabled" = x"yes"; then
ADDITIONAL_OBJECTS="$ADDITIONAL_OBJECTS reverse-proxy.o"
AC_DEFINE(REVERSE_SUPPORT)
fi
dnl Include the transparent proxy support
AH_TEMPLATE([TRANSPARENT_PROXY],
[Include support for using tinyproxy as a transparent proxy.])
TP_ARG_ENABLE(transparent,
[Enable transparent proxying code (default is NO)],
no)
if test x"$transparent_enabled" = x"yes"; then
ADDITIONAL_OBJECTS="$ADDITIONAL_OBJECTS transparent-proxy.o"
AC_DEFINE(TRANSPARENT_PROXY)
fi
# This is required to build test programs below
AC_PROG_CC
dnl
dnl Checks for libraries
dnl
AC_CHECK_LIB(socket, socket, , [AC_CHECK_LIB(socket, htonl)])
dnl Some systems (OpenServer 5) dislike -lsocket -lnsl, so we try to
dnl avoid -lnsl checks, if we already have the functions which are
dnl usually in libnsl
unset ac_cv_func_yp_get_default_domain
AC_CHECK_FUNC(yp_get_default_domain,
tinyproxy_no_nsl_checks=yes,
tinyproxy_no_nsl_checks=no)
unset ac_cv_func_yp_get_default_domain
if test x"$tinyproxy_no_nsl_checks" != x"yes"; then
AC_CHECK_LIB(nsl, gethostname, , [AC_CHECK_LIB(nsl, gethostbyaddr)])
fi
AC_CHECK_LIB(resolv, inet_aton)
dnl
dnl Checks for headers
dnl
AC_HEADER_STDC
AC_HEADER_TIME
AC_HEADER_SYS_WAIT
AC_CHECK_HEADERS([sys/ioctl.h sys/mman.h sys/resource.h \
sys/select.h sys/socket.h sys/time.h sys/uio.h \
sys/un.h arpa/inet.h netinet/in.h \
assert.h ctype.h errno.h fcntl.h grp.h io.h libintl.h \
netdb.h pwd.h regex.h signal.h stdarg.h stddef.h stdio.h \
sysexits.h syslog.h time.h wchar.h wctype.h \
values.h])
dnl OpenBSD machines don't like having malloc included (even if it's present)
dnl as they expect you to use stdlib.h
case "$target" in
*-openbsd*) ;;
*) AC_CHECK_HEADER(malloc.h);;
esac
dnl Checks for types
AC_TYPE_SIZE_T
AC_TYPE_PID_T
AC_UNP_CHECK_TYPE(uint8_t, unsigned char)
AC_UNP_CHECK_TYPE(int16_t, short)
AC_UNP_CHECK_TYPE(uint16_t, unsigned short)
AC_UNP_CHECK_TYPE(int32_t, int)
AC_UNP_CHECK_TYPE(uint32_t, unsigned int)
AC_UNP_CHECK_TYPE(ssize_t, int)
AC_UNP_CHECK_TYPE(socklen_t, unsigned int)
AC_UNP_CHECK_TYPE(in_addr_t, uint32_t)
dnl Checks for libary functions
AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK
AC_FUNC_MALLOC
AC_FUNC_REALLOC
AC_CHECK_FUNCS([gethostname inet_ntoa memchr memset select socket strcasecmp \
strchr strdup strerror strncasecmp strpbrk strstr strtol])
AC_CHECK_FUNCS([isascii memcpy memmove setrlimit ftruncate regcomp regexec])
AC_CHECK_FUNCS([strlcpy strlcat setgroups])
AC_CHECK_FUNCS([time rand srand])
dnl Enable extra warnings
DESIRED_FLAGS="-fdiagnostics-show-option -Wall -Wextra -Wno-unused-parameter -Wmissing-prototypes -Wstrict-prototypes -Wmissing-declarations -Wfloat-equal -Wundef -Wformat=2 -Wlogical-op -Wmissing-include-dirs -Wformat-nonliteral -Wold-style-definition -Wpointer-arith -Waggregate-return -Winit-self -Wpacked --std=c89 -ansi -pedantic -Wno-overlength-strings -Wc++-compat -Wno-long-long -Wno-overlength-strings -Wdeclaration-after-statement -Wredundant-decls -Wmissing-noreturn -Wshadow -Wendif-labels -Wcast-qual -Wcast-align -Wwrite-strings -Wp,-D_FORTIFY_SOURCE=2 -fno-common"
if test -n "${MAINTAINER_MODE_FALSE}"; then
DESIRED_FLAGS="-Werror $DESIRED_FLAGS"
fi
for flag in $DESIRED_FLAGS; do
AS_COMPILER_FLAG([$flag], [CFLAGS="$CFLAGS $flag"])
done
dnl Disable debugging if it's not specified
if test x"$debug_enabled" != x"yes" ; then
CFLAGS="-DNDEBUG $CFLAGS"
fi
LDFLAGS="-Wl,-z,defs $LDFLAGS"
dnl
dnl Make sure we can actually handle the "--with-*" and "--enable-*" stuff.
dnl
dnl Handle the REGEX library
if test x"$ac_cv_func_regexec" != x"yes"; then
AC_MSG_ERROR([Could not locate the regexec() function])
fi
dnl
dnl Substitute the variables into the various Makefiles
dnl
AC_SUBST(CFLAGS)
AC_SUBST(LDFLAGS)
AC_SUBST(CPPFLAGS)
AC_SUBST(LIBS)
AC_SUBST(ADDITIONAL_OBJECTS)
# Check for xml tools
AC_PATH_PROG(XMLLINT, xmllint, no)
AM_CONDITIONAL(HAVE_XMLLINT, test "x$XMLLINT" != "xno")
AC_PATH_PROG(XSLTPROC, xsltproc, no)
AM_CONDITIONAL(HAVE_XSLTPROC, test "x$XSLTPROC" != "xno")
# Check for asciidoc
AC_PATH_PROG(A2X, a2x, no)
AM_CONDITIONAL(HAVE_A2X, test "x$A2X" != "xno")
if test x"$A2X" = x"no"; then
AC_MSG_ERROR([Test for asciidoc failed. See the file 'INSTALL' for help.])
fi
AC_CONFIG_FILES([
Makefile
src/Makefile
data/Makefile
data/templates/Makefile
etc/Makefile
docs/Makefile
docs/man5/Makefile
docs/man5/tinyproxy.conf.txt
docs/man8/Makefile
docs/man8/tinyproxy.txt
m4macros/Makefile
tests/Makefile
tests/scripts/Makefile
])
AC_OUTPUT
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