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tinyproxy/configure.ac
Mukund Sivaraman e42d1cf9fd Use a configure arg to request regex checking 
Disabling the regex check seems to be required during cross-compiles,
where it's not possible to test the target's regex library at
compile time.
2010-01-03 13:52:00 +05:30

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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], [7])
m4_define([tinyproxy_micro_version], [2])
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], [0.7.0])
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://www.banu.com/bugzilla/enter_bug.cgi?product=Tinyproxy],
[tinyproxy])
AC_CANONICAL_TARGET
AM_INIT_AUTOMAKE
AM_CONFIG_HEADER(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
dnl Check for broken regex library
TP_ARG_ENABLE(regexcheck,
[Check for working regex library (default is YES)],
yes)
# 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 setrlimit ftruncate regcomp regexec])
AC_CHECK_FUNCS([strlcpy strlcat])
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 -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 $CFLAGS"
fi
LDFLAGS="-Wl,-z,defs"
dnl
dnl Make sure we can actually handle the "--with-*" and "--enable-*" stuff.
dnl
dnl Handle the REGEX library
if test x"$ac_cv_func_regexec" != x"yes"; then
AC_MSG_ERROR([Could not locate the regexec() function])
else
if test x"$regexcheck_enabled" = x"yes" ; then
AC_MSG_CHECKING([whether the system's regex library is broken])
AC_CACHE_VAL(tinyproxy_cv_regex_broken,
[AC_TRY_RUN([
#if HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#if HAVE_UNISTD_H
# include <unistd.h>
#endif
#if HAVE_REGEX_H
# include <regex.h>
#endif
#if HAVE_STDLIB_H
# include <stdlib.h>
#endif
int main(void)
{
regex_t blah;
if (regcomp(&blah, "foo.*bar", REG_NOSUB) != 0)
exit(1);
if (regexec(&blah, "foobar", 0, NULL, 0) != 0)
exit(1);
else
exit(0);
return 0;
}
],
tinyproxy_cv_regex_broken=no,
tinyproxy_cv_regex_broken=yes,
tinyproxy_cv_regex_broken=yes)])
AC_MSG_RESULT([$tinyproxy_cv_regex_broken])
if test x"$tinyproxy_cv_regex_broken" = x"yes" ; then
AC_MSG_ERROR([Your system's regexec() function is broken.])
fi
fi
fi
dnl
dnl Substitute the variables into the various Makefiles
dnl
AC_SUBST(CFLAGS)
AC_SUBST(LDFLAGS)
AC_SUBST(CPPFLAGS)
AC_SUBST(LIBS)
AC_SUBST(ADDITIONAL_OBJECTS)
# Check for asciidoc
AC_PATH_PROG(A2X, a2x, no)
AM_CONDITIONAL(HAVE_A2X, test "x$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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