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configure.in
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configure.in
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# -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.
AC_INIT(Hercules)
AC_REVISION([m4_esyscmd_s([type git >/dev/null 2>&1 && git describe --always 2>/dev/null || echo '(unknown version)'])])
AC_PREREQ([2.59])
AC_CONFIG_SRCDIR([src/common/cbasetypes.h])
AC_CONFIG_FILES([Makefile src/common/Makefile])
AC_CONFIG_FILES([3rdparty/mt19937ar/Makefile 3rdparty/libconfig/Makefile])
AC_CONFIG_FILES([src/char/Makefile src/login/Makefile])
AC_CONFIG_FILES([src/map/Makefile src/plugins/Makefile src/tool/Makefile])
AC_CONFIG_FILES([src/test/Makefile])
AC_CONFIG_FILES([tools/HPMHookGen/Makefile])
AC_GNU_SOURCE
#
# Memory managers
#
AC_ARG_ENABLE(
[manager],
AC_HELP_STRING(
[--enable-manager=ARG],
[memory managers: no, builtin, memwatch, dmalloc, gcollect, bcheck (defaults to builtin)]
),
[
enable_manager="$enableval"
case $enableval in
"no");;
"builtin");;
"memwatch");;
"dmalloc");;
"gcollect");;
"bcheck");;
*) AC_MSG_ERROR([[unknown memory manager '$enableval'... stopping]]);;
esac
],
[enable_manager="builtin"]
)
#
# packetver
#
AC_ARG_ENABLE(
[packetver],
AC_HELP_STRING(
[--enable-packetver=ARG],
[Sets the PACKETVER define. (see src/common/mmo.h)]
),
[enable_packetver="$enableval"],
[enable_packetver=""]
)
#
# packetver-RE
#
AC_ARG_ENABLE(
[packetver-re],
AC_HELP_STRING(
[--disable-packetver-re],
[Sets or unsets the PACKETVER_RE define - see src/common/mmo.h (currently enabled by default)]
),
[
enable_packetver_re="$enableval"
case $enableval in
"no");;
"yes");;
*) AC_MSG_ERROR([[invalid argument --enable-packetver-re=$enableval... stopping]]);;
esac
],
[enable_packetver_re="yes"]
)
#
# Obfuscation keys
#
AC_ARG_WITH(
[key1],
AC_HELP_STRING(
[--with-key1@<:@=ARG@:>@],
[Set the first obfuscation key (ignored unless the other two are also specified)]
),
[
obfuscationkey1="$( expr "0x$withval" : '0*x*\(0x@<:@A-Fa-f0-9@:>@\{8\}\)' )"
if ! expr "x$obfuscationkey1" : 'x0x@<:@A-Fa-f0-9@:>@\{8\}' >/dev/null 2>&1; then
obfuscationkey1=""
fi
],
[
obfuscationkey1=""
]
)
AC_ARG_WITH(
[key2],
AC_HELP_STRING(
[--with-key2@<:@=ARG@:>@],
[Set the second obfuscation key (ignored unless the other two are also specified)]
),
[
obfuscationkey2="$( expr "0x$withval" : '0*x*\(0x@<:@A-Fa-f0-9@:>@\{8\}\)' )"
if ! expr "x$obfuscationkey2" : 'x0x@<:@A-Fa-f0-9@:>@\{8\}' >/dev/null 2>&1; then
obfuscationkey2=""
fi
],
[
obfuscationkey2=""
]
)
AC_ARG_WITH(
[key3],
AC_HELP_STRING(
[--with-key3@<:@=ARG@:>@],
[Set the third obfuscation key (ignored unless the other two are also specified)]
),
[
obfuscationkey3="$( expr "0x$withval" : '0*x*\(0x@<:@A-Fa-f0-9@:>@\{8\}\)' )"
if ! expr "x$obfuscationkey3" : 'x0x@<:@A-Fa-f0-9@:>@\{8\}' >/dev/null 2>&1; then
obfuscationkey3=""
fi
],
[
obfuscationkey3=""
]
)
#
# debug
#
AC_ARG_ENABLE(
[debug],
AC_HELP_STRING(
[--enable-debug@<:@=ARG@:>@],
[
Compiles extra debug code. (disabled by default)
(available options: yes, no, gdb)
]
),
[
enable_debug="$enableval"
case $enableval in
"no");;
"yes");;
"gdb");;
*) AC_MSG_ERROR([[invalid argument --enable-debug=$enableval... stopping]]);;
esac
],
[enable_debug="no"]
)
#
# Buildbot
#
AC_ARG_ENABLE(
[buildbot],
AC_HELP_STRING(
[--enable-buildbot@<:@=ARG@:>@],
[(available options: yes, no)]
),
[
enable_buildbot="$enableval"
case $enableval in
"no");;
"yes");;
*) AC_MSG_ERROR([[invalid argument --enable-buildbot=$enableval... stopping]]);;
esac
],
[enable_buildbot="no"]
)
#
# RDTSC as Tick Source
#
AC_ARG_ENABLE(
[rdtsc],
AC_HELP_STRING(
[--enable-rdtsc],
[
Uses rdtsc as timing source (disabled by default)
Enable it when you've timing issues.
(For example: in conjunction with XEN or Other Virtualization mechanisms)
Note:
Please ensure that you've disabled dynamic CPU-Frequencys, such as power saving options.
(On most modern Dedicated Servers cpufreq is preconfigured, see your distribution's
manual how to disable it).
Furthermore, If your CPU has built-in CPU-Frequency scaling features (such as Intel's
SpeedStep(R)), do not enable this option. Recent CPUs (Intel Core or newer) guarantee
a fixed increment rate for their TSC, so it should be safe to use, but please doublecheck
the documentation of both your CPU and OS before enabling this option.
]
),
[
enable_rdtsc=1
],
[enable_rdtsc=0]
)
#
# Profiler
#
AC_ARG_ENABLE(
[profiler],
AC_HELP_STRING(
[--enable-profiler=ARG],
[Profilers: no, gprof (disabled by default)]
),
[
enable_profiler="$enableval"
case $enableval in
"no");;
"gprof");;
*) AC_MSG_ERROR([[invalid argument --enable-profiler=$enableval... stopping]]);;
esac
],
[enable_profiler="no"]
)
#
# 64bit
#
AC_ARG_ENABLE(
[64bit],
AC_HELP_STRING(
[--disable-64bit],
[
Enforce 32bit output on x86_64 systems.
]
),
[
enable_64bit="$enableval"
case $enableval in
"no");;
"yes");;
*) AC_MSG_ERROR([[invalid argument --enable-64bit=$enableval... stopping]]);;
esac
],
[enable_64bit="yes"]
)
#
# LTO
#
AC_ARG_ENABLE(
[lto],
AC_HELP_STRING(
[--enable-lto],
[
Enables or Disables Linktime Code Optimization (LTO is enabled by default)
]
),
[
enable_lto="$enableval"
case $enableval in
"no");;
"yes");;
*) AC_MSG_ERROR([[invalid argument --enable-lto=$disableval... stopping]]);;
esac
],
[enable_lto="yes"]
)
#
# Renewal
#
AC_ARG_ENABLE(
[renewal],
AC_HELP_STRING(
[--disable-renewal],
[
Disable Ragnarok Renewal support (override settings in src/config/renewal.h)
]
),
[
enable_renewal="$enableval"
case $enableval in
"no");;
"yes");;
*) AC_MSG_ERROR([[invalid argument --enable-renewal=$enableval... stopping]]);;
esac
],
[enable_renewal="yes"]
)
#
# Optionally set the max number of network conenctions
# the core will be support
#
AC_ARG_WITH(
[maxconn],
AC_HELP_STRING(
[--with-maxconn@<:@=ARG@:>@],
[optionally set the maximum connections the core can handle (default: 16384) NOT USED YET - EXPERIMENTAL]
),
[
if test "$withval" == "no"; then
CFLAGS="$CFLAGS -DMAXCONN=16384"
else
if ! test "$withval" -ge 0 -o "$withval" -lt 0 2>&- ; then
AC_MSG_ERROR([Invalid argument --with-maxconn=$withval ... stopping])
else
CFLAGS="$CFLAGS -DMAXCONN=$withval"
fi
fi
],
[
CFLAGS="$CFLAGS -DMAXCONN=16384"
]
)
#
# Optionally specify the path to mysql_config
#
AC_ARG_WITH(
[mysql],
AC_HELP_STRING(
[--with-mysql@<:@=ARG@:>@],
[optionally specify the path to the mysql_config executable]
),
[
if test "$withval" != "no" ; then
if test ! -x "$withval" ; then
AC_MSG_ERROR([$withval is not an executable file])
fi
MYSQL_CONFIG_HOME="$withval"
fi
]
)
#
# Manual MYSQL_CFLAGS (optional)
#
AC_ARG_WITH(
[MYSQL_CFLAGS],
AC_HELP_STRING(
[--with-MYSQL_CFLAGS=ARG],
[specify MYSQL_CFLAGS manually (instead of using "mysql_config --include")]
),
[
manual_MYSQL_CFLAGS="yes"
MYSQL_CFLAGS="$withval"
],
[manual_MYSQL_CFLAGS="no"]
)
#
# Manual MYSQL_LIBS (optional)
#
AC_ARG_WITH(
[MYSQL_LIBS],
AC_HELP_STRING(
[--with-MYSQL_LIBS=ARG],
[specify MYSQL_LIBS manually (instead of using "mysql_config --libs")]
),
[
manual_MYSQL_LIBS="yes"
MYSQL_LIBS="$withval"
],
[manual_MYSQL_LIBS="no"]
)
#
# Enable/disable PCRE and optionally specify the path (optional library)
#
AC_ARG_WITH(
[pcre],
AC_HELP_STRING(
[--with-pcre@<:@=ARG@:>@],
[use PCRE library, optionally specify the full path of pcre installation directory (by default pcre is used if found)]
),
[
if test "$withval" = "no" ; then
want_pcre="no"
else
want_pcre="yes"
require_pcre="yes"
if test "$withval" != "yes" ; then
if test ! -d "$withval" ; then
AC_MSG_ERROR([$withval is not a directoy])
fi
PCRE_HOME="$withval"
fi
fi
],
[want_pcre="yes" require_pcre="no"]
)
#
# Specify the path of the zlib library (required library)
#
AC_ARG_WITH(
[zlib],
AC_HELP_STRING(
[--with-zlib=DIR],
[root directory path of zlib installation (defaults to /usr/local or /usr if not found in /usr/local).
Assumes that the header files are in DIR/include and the library files are in DIR/lib]
),
[
test -n "$withval" && ZLIB_HOME="$withval"
],
[
ZLIB_HOME=/usr/local
test ! -f "${ZLIB_HOME}/include/zlib.h" && ZLIB_HOME=/usr
]
)
###############################################################################
# Check for programs and types.
#
AC_PROG_MAKE_SET
AC_PROG_CC
AC_PROG_CPP
AC_PATH_PROG(AR, ar)
AC_LANG([C])
CFLAGS="$CFLAGS -pipe -ffast-math -Wall -Wno-sign-compare"
CPPFLAGS="$CPPFLAGS -I../common"
AC_C_BIGENDIAN(
[AC_MSG_ERROR([[bigendian is not supported... stopping]])],
,
[AC_MSG_WARN([[unable to determine endianess, only little endian is supported]])]
)
if test "$enable_64bit" = "no" ; then
AC_MSG_CHECKING([whether pointers can be stored in ints (old code)])
pointers_fit_in_ints="no"
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([[static int test_array[((long int)sizeof(int)) == ((long int)sizeof(void*)) ? 1 : -1];]])],
[pointers_fit_in_ints="yes"],
[]
)
if test "$pointers_fit_in_ints" = "no" ; then
CFLAGS="$CFLAGS -m32"
LDFLAGS="$LDFLAGS -m32"
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([[static int test_array[((long int)sizeof(int)) == ((long int)sizeof(void *)) ? 1 : -1];]])],
[pointers_fit_in_ints="yes (with -m32)"],
[]
)
fi
AC_MSG_RESULT($pointers_fit_in_ints)
if test "$pointers_fit_in_ints" = "no" ; then
AC_MSG_ERROR([pointers cannot be stored in ints, required for old code... stopping])
fi
fi
#
# check if we're producing 32bit code - so well produce binarys for at least i686 (speedup: cmovs, and cmpchg8 support)
#
AC_MSG_CHECKING([whether $CC produces 32bit code])
AC_RUN_IFELSE(
[AC_LANG_SOURCE([
int main(int argc, char **argv){
if(sizeof(void*) == 4) return 0;
else return 1;
}
])],
[
AC_MSG_RESULT([yes])
CFLAGS="$CFLAGS -march=i686"
LDFLAGS="$LDFLAGS -march=i686"
],
[
AC_MSG_RESULT([no])
],
[
AC_MSG_RESULT([guessing no])
]
)
#
# Check if CC supports __thread attribute (Thread Local Storage)
# (Usually our OSX friends 're lacking support of it in older llvm versions ..)
#
AC_MSG_CHECKING([whether $CC supports __thread specifier (TLS)])
AC_RUN_IFELSE(
[AC_LANG_SOURCE([
__thread int g_Test = -1;
int main(int argc, char **argv){
g_Test = 0;
return g_Test;
}
])],
[
AC_MSG_RESULT([yes])
CFLAGS="$CFLAGS -DHAS_TLS"
],
[
AC_MSG_RESULT([no])
]
)
AC_MSG_CHECKING([whether $CC supports -Wno-unused-parameter])
OLD_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Wno-unused-parameter"
AC_COMPILE_IFELSE(
[AC_LANG_SOURCE([int foo;])],
[AC_MSG_RESULT([yes])],
[
AC_MSG_RESULT([no])
CFLAGS="$OLD_CFLAGS"
]
)
#
# LTO Support test
#
if test "$enable_lto" != "no" ; then
OLD_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -flto"
OLD_LDFLAGS="$LDFLAGS"
LDFLAGS="$LDFLAGS -flto"
AC_MSG_CHECKING([whether $CC supports -flto])
AC_RUN_IFELSE(
[AC_LANG_SOURCE([
int main(int argc, char **argv){
return 0;
}
])],
[
AC_MSG_RESULT([yes])
],
[
AC_MSG_RESULT([no])
CFLAGS="$OLD_CFLAGS"
LDFLAGS="$OLD_LDFLAGS"
],
[
AC_MSG_RESULT([guessing no])
]
)
fi
AC_MSG_CHECKING([whether $CC supports -Wno-pointer-sign])
OLD_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Wno-pointer-sign"
AC_COMPILE_IFELSE(
[AC_LANG_SOURCE([int foo;])],
[
AC_MSG_RESULT([yes])
AC_MSG_CHECKING([whether $CC can actually use -Wno-pointer-sign])
# This option causes warnings in C++ mode
# Note: -Werror must be before -Wno-pointer-sign, otherwise it does not do anything
CFLAGS="$OLD_CFLAGS -Werror -Wno-pointer-sign"
AC_COMPILE_IFELSE(
[AC_LANG_SOURCE([int foo;])],
[
AC_MSG_RESULT([yes])
CFLAGS="$OLD_CFLAGS -Wno-pointer-sign"
],
[
AC_MSG_RESULT([no])
CFLAGS="$OLD_CFLAGS"
]
)
],
[
AC_MSG_RESULT([no])
CFLAGS="$OLD_CFLAGS"
]
)
AC_MSG_CHECKING([whether $CC supports -Wno-switch])
OLD_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Wno-switch"
AC_COMPILE_IFELSE(
[AC_LANG_SOURCE([int foo;])],
[AC_MSG_RESULT([yes])],
[
AC_MSG_RESULT([no])
CFLAGS="$OLD_CFLAGS"
]
)
AC_MSG_CHECKING([whether $CC supports -fPIC])
OLD_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -fPIC"
AC_COMPILE_IFELSE(
[AC_LANG_SOURCE([int foo;])],
[
AC_MSG_RESULT([yes])
compiler_supports_pic="yes"
],
[
AC_MSG_RESULT([no])
compiler_supports_pic="no"
]
)
CFLAGS="$OLD_CFLAGS"
#
# option for shared objects
#
AC_MSG_CHECKING([how to make shared objects])
OLD_CFLAGS="$CFLAGS"
compiler_shared_objects=""
compiler_supports_shared_objects="no"
if test "$compiler_supports_pic" = "yes" ; then
my_shared_test_flags="$CFLAGS -fPIC"
fi
# default
CFLAGS="$my_shared_test_flags -shared"
AC_LINK_IFELSE(
[AC_LANG_SOURCE([
int bar = 0;
int foo(void)
{
return bar;
}
])],
[
compiler_shared_objects="-shared"
compiler_supports_shared_objects="yes"
]
)
# BeOS specific
CFLAGS="$my_shared_test_flags -nostart"
AC_LINK_IFELSE(
[AC_LANG_SOURCE([
int bar = 0;
int foo(void)
{
return bar;
}
])],
[
compiler_shared_objects="-nostart"
compiler_supports_shared_objects="yes"
]
)
CFLAGS="$OLD_CFLAGS"
if test "$compiler_supports_shared_objects" = "no" ; then
AC_MSG_RESULT([not supported])
AC_MSG_NOTICE([compiler is unable to generate shared objects, disabled plugins (optional)])
WITH_PLUGINS="no"
else
AC_MSG_RESULT([$compiler_shared_objects $compiler_supports_shared_objects])
SOFLAGS="$SOFLAGS $compiler_shared_objects"
AC_SUBST([SOFLAGS])
#
# On certain platforms, undefined references on shared libraries won't be checked
# unless explicitly required with the --no-undefined linker option
#
AC_MSG_CHECKING([whether $CC needs -Wl,--no-undefined to check for undefined references in shared objects])
OLD_CFLAGS="$CFLAGS"
CFLAGS="$SOFLAGS"
AC_LINK_IFELSE(
[AC_LANG_SOURCE([
void foo(void) {
foobar();
}
])],
[
CFLAGS="$SOFLAGS -Wl,--no-undefined"
AC_LINK_IFELSE(
[AC_LANG_SOURCE([
int bar = 0;
int foo(void) {
return bar;
}
])],
[
AC_MSG_RESULT([yes])
SOFLAGS="$SOFLAGS -Wl,--no-undefined"
],
[
AC_MSG_RESULT([unsupported (undefined references check will be ignored)])
]
)
],
[
AC_MSG_RESULT([no])
]
)
CFLAGS="$OLD_CFLAGS"
#
# shared objects need position independent code; some platforms emit
# it always, others need -fPIC
#
AC_MSG_CHECKING([whether $CC needs -fPIC for shared objects])
OLD_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $SOFLAGS"
WITH_PLUGINS="yes"
AC_LINK_IFELSE(
[AC_LANG_SOURCE([
int bar = 0;
int foo(void)
{
return bar;
}
])],
[
AC_MSG_RESULT([no])
CFLAGS="$OLD_CFLAGS"
],
[
if test "$compiler_supports_pic" = "yes" ; then
# Verify if -shared really fails due to lack of -fPIC or something else
CFLAGS="$CFLAGS -fPIC"
AC_LINK_IFELSE(
[AC_LANG_SOURCE([
int bar = 0;
int foo(void)
{
return bar;
}
])],
[
AC_MSG_RESULT([yes])
CFLAGS="$OLD_CFLAGS -fPIC"
],
[
AC_MSG_RESULT([no, but fails for another reason])
AC_MSG_ERROR([compiler is unable to compile shared objects for an unhandled reason, please report this with attached config.log... stopping])
]
)
else
# Disable compilation of plugins (optional), so 'make all' does not fail
AC_MSG_RESULT([yes, but unsupported])
AC_MSG_NOTICE([compiler is unable to generate position independent code, disabled plugins (optional)])
WITH_PLUGINS="no"
fi
]
)
fi
my_shared_test_flags=""
AC_SUBST([WITH_PLUGINS])
#
# -O2 implies -fstrict-aliasing, but the code is not safe for that
#
AC_MSG_CHECKING([whether $CC supports -fno-strict-aliasing])
OLD_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -fno-strict-aliasing"
AC_COMPILE_IFELSE(
[AC_LANG_SOURCE([int foo;])],
[AC_MSG_RESULT([yes])],
[
AC_MSG_RESULT([no])
CFLAGS="$OLD_CFLAGS"
]
)
###############################################################################
# Check for libraries and header files.
#
#
# setrlimit - used to set the socket limit
#
AC_CHECK_FUNC([setrlimit],[CFLAGS="$CFLAGS -DHAVE_SETRLIMIT"])
#
# strnlen - string length with upper scan bound
#
AC_CHECK_FUNC([strnlen],[CFLAGS="$CFLAGS -DHAVE_STRNLEN"])
# libconfig
AC_CHECK_FUNCS([uselocale])
AC_CHECK_FUNCS([newlocale])
AC_CHECK_FUNCS([freelocale])
AC_CHECK_HEADERS([xlocale.h])
#
# Memory manager
#
case $enable_manager in
"no")
CFLAGS="$CFLAGS -DNO_MEMMGR"
;;
"builtin")
# enabled by default
;;
"memwatch")
CFLAGS="$CFLAGS -DMEMWATCH"
AC_CHECK_HEADER([memwatch.h], , [AC_MSG_ERROR([memwatch header not found... stopping])])
;;
"dmalloc")
CFLAGS="$CFLAGS -DDMALLOC -DDMALLOC_FUNC_CHECK"
LIBS="$LIBS -ldmalloc"
AC_CHECK_HEADER([dmalloc.h], , [AC_MSG_ERROR([dmalloc header not found... stopping])])
;;
"gcollect")
CFLAGS="$CFLAGS -DGCOLLECT"
LIBS="$LIBS -lgc"
AC_CHECK_HEADER([gc.h], , [AC_MSG_ERROR([gcollect header not found... stopping])])
;;
"bcheck")
CFLAGS="$CFLAGS -DBCHECK"
;;
esac
#
# Packetver
#
if test -n "$enable_packetver" ; then
CFLAGS="$CFLAGS -DPACKETVER=$enable_packetver"
fi
#
# Packetver-RE
#
case $enable_packetver_re in
"yes")
# default value
CFLAGS="$CFLAGS -DDISABLE_PACKETVER_RE"
;;
"no")
;;
esac
#
# Obfuscation keys
#
if test -n "$obfuscationkey1" -a -n "$obfuscationkey2" -a -n "$obfuscationkey3"; then
CFLAGS="$CFLAGS -DOBFUSCATIONKEY1=$obfuscationkey1 -DOBFUSCATIONKEY2=$obfuscationkey2 -DOBFUSCATIONKEY3=$obfuscationkey3"
fi
#
# Debug
#
case $enable_debug in
"no")
# default value
CFLAGS="$CFLAGS -Wno-unused -Wno-parentheses"
;;
"yes")
CFLAGS="$CFLAGS -g -DDEBUG"
;;
"gdb")
CFLAGS="$CFLAGS -ggdb -DDEBUG"
;;
esac
#
# Buildbot
#
case $enable_buildbot in
"no")
# default value
;;
"yes")
CFLAGS="$CFLAGS -DBUILDBOT"
;;
esac
#
# RDTSC
#
case $enable_rdtsc in
0)
#default value
;;
1)
CFLAGS="$CFLAGS -DENABLE_RDTSC"
;;
esac
#
# Profiler
#
case $enable_profiler in
"no")
# default value
;;
"gprof")
CFLAGS="$CFLAGS -pg"
LDFLAGS="$LDFLAGS -pg"
;;
esac
#
# Renewal
#
case $enable_renewal in
"no")
CFLAGS="$CFLAGS -DDISABLE_RENEWAL"
;;
"yes")
# default value
;;
esac
#
# zlib library (required)
#
if test -n "${ZLIB_HOME}" ; then
LDFLAGS="$LDFLAGS -L${ZLIB_HOME}/lib"
CPPFLAGS="$CPPFLAGS -I${ZLIB_HOME}/include"
fi
AC_CHECK_LIB([z], [inflateEnd], [],[AC_MSG_ERROR([zlib library not found or incompatible, please specify the correct path with --with-zlib=DIR... stopping])])
AC_CHECK_HEADER([zlib.h], [], [AC_MSG_ERROR([zlib header not found, please specify the correct path with --with-zlib=DIR... stopping])])
#
# math library (required)
#
AC_SEARCH_LIBS([sqrt], [m], [], [AC_MSG_ERROR([math library not found... stopping])])
#
# clock_gettime (optional, rt on Debian)
#
AC_SEARCH_LIBS([clock_gettime], [rt])
#
# CLOCK_MONOTONIC clock for clock_gettime
# Normally defines _POSIX_TIMERS > 0 and _POSIX_MONOTONIC_CLOCK (for posix
# compliant systems) and __FreeBSD_cc_version >= 500005 (for FreeBSD
# >= 5.1.0, which does not have the posix defines (ref. r11983)) would be
# checked but some systems define them even when they do not support it
# (ref. bugreport:1003).
#
if test "$ac_cv_search_clock_gettime" != "no" ; then
AC_MSG_CHECKING([whether CLOCK_MONOTONIC is supported and works])
AC_RUN_IFELSE(
[AC_LANG_SOURCE([
#include <sys/time.h>
#include <time.h>
#include <unistd.h>
int main(int argc, char** argv)
{
struct timespec tval;
return clock_gettime(CLOCK_MONOTONIC, &tval);
}
])],
[
AC_MSG_RESULT([yes])
CFLAGS="$CFLAGS -DHAVE_MONOTONIC_CLOCK"
],
[
# either it failed to compile (CLOCK_MONOTONIC undefined)
# or clock_gettime has returned a non-zero value
AC_MSG_RESULT([no])
],
[
AC_MSG_RESULT([guessing no])
]
)
fi
#
# pthread
#
AC_CHECK_LIB([pthread], [pthread_create], [], [AC_MSG_ERROR([pthread library not found or incompatible])])
AC_CHECK_LIB([pthread], [pthread_sigmask], [], [AC_MSG_ERROR([pthread library not found or incompatible])])
AC_CHECK_LIB([pthread], [pthread_attr_init], [], [AC_MSG_ERROR([pthread library not found or incompatible])])
AC_CHECK_LIB([pthread], [pthread_attr_setstacksize], [], [AC_MSG_ERROR([pthread library not found or incompatible])])