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# -*- Autoconf -*-# Process this file with autoconf to produce a configure script.AC_PREREQ(2.53)AC_INIT(cppbsl, 0.1, koepke@tkn.tu-berlin.de)AC_CONFIG_AUX_DIR(config)AM_CONFIG_HEADER(config.h)AC_CONFIG_SRCDIR([src])AM_INIT_AUTOMAKE# Checks for programs.AC_PROG_CCAC_PROG_CPPAC_PROG_CXXAC_FUNC_ERROR_AT_LINEAC_HEADER_STDCAC_C_CONST#checks for header files and libraries#AC_CHECK_HEADER(readline.h)#AC_CHECK_LIB(readline, rl_initialize)AC_CHECK_HEADER(popt.h)AC_CHECK_LIB(popt, poptGetNextOpt)#AC_CHECK_HEADER(pthread.h)# Checks for typedefs, structures, and compiler characteristics.# AC_HEADER_STDBOOLAC_DEFUN([ACX_PTHREAD], [AC_REQUIRE([AC_CANONICAL_HOST])AC_LANG_SAVEAC_LANG_Cacx_pthread_ok=no# Steven G. Johnson <stevenj@alum.mit.edu> http://autoconf-archive.cryp.to/acx_pthread.html# We used to check for pthread.h first, but this fails if pthread.h# requires special compiler flags (e.g. on True64 or Sequent).# It gets checked for in the link test anyway.# First of all, check if the user has set any of the PTHREAD_LIBS,# etcetera environment variables, and if threads linking works using# them:if test x"$PTHREAD_LIBS$PTHREAD_CFLAGS" != x; then save_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS $PTHREAD_CFLAGS" save_LIBS="$LIBS" LIBS="$PTHREAD_LIBS $LIBS" AC_MSG_CHECKING([for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS]) AC_TRY_LINK_FUNC(pthread_join, acx_pthread_ok=yes) AC_MSG_RESULT($acx_pthread_ok) if test x"$acx_pthread_ok" = xno; then PTHREAD_LIBS="" PTHREAD_CFLAGS="" fi LIBS="$save_LIBS" CFLAGS="$save_CFLAGS"fi# We must check for the threads library under a number of different# names; the ordering is very important because some systems# (e.g. DEC) have both -lpthread and -lpthreads, where one of the# libraries is broken (non-POSIX).# Create a list of thread flags to try. Items starting with a "-" are# C compiler flags, and other items are library names, except for "none"# which indicates that we try without any flags at all, and "pthread-config"# which is a program returning the flags for the Pth emulation library.acx_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config"# The ordering *is* (sometimes) important. Some notes on the# individual items follow:# pthreads: AIX (must check this before -lpthread)# none: in case threads are in libc; should be tried before -Kthread and# other compiler flags to prevent continual compiler warnings# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)# -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)# lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads)# -pthreads: Solaris/gcc# -mthreads: Mingw32/gcc, Lynx/gcc# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it# doesn't hurt to check since this sometimes defines pthreads too;# also defines -D_REENTRANT)# ... -mt is also the pthreads flag for HP/aCC# pthread: Linux, etcetera# --thread-safe: KAI C++# pthread-config: use pthread-config program (for GNU Pth library)case "${host_cpu}-${host_os}" in *solaris*) # On Solaris (at least, for some versions), libc contains stubbed # (non-functional) versions of the pthreads routines, so link-based # tests will erroneously succeed. (We need to link with -pthreads/-mt/ # -lpthread.) (The stubs are missing pthread_cleanup_push, or rather # a function called by this macro, so we could check for that, but # who knows whether they'll stub that too in a future libc.) So, # we'll just look for -pthreads and -lpthread first: acx_pthread_flags="-pthreads pthread -mt -pthread $acx_pthread_flags" ;;esacif test x"$acx_pthread_ok" = xno; thenfor flag in $acx_pthread_flags; do case $flag in none) AC_MSG_CHECKING([whether pthreads work without any flags]) ;; -*) AC_MSG_CHECKING([whether pthreads work with $flag]) PTHREAD_CFLAGS="$flag" ;; pthread-config) AC_CHECK_PROG(acx_pthread_config, pthread-config, yes, no) if test x"$acx_pthread_config" = xno; then continue; fi PTHREAD_CFLAGS="`pthread-config --cflags`" PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`" ;; *) AC_MSG_CHECKING([for the pthreads library -l$flag]) PTHREAD_LIBS="-l$flag" ;; esac save_LIBS="$LIBS" save_CFLAGS="$CFLAGS" LIBS="$PTHREAD_LIBS $LIBS" CFLAGS="$CFLAGS $PTHREAD_CFLAGS" # Check for various functions. We must include pthread.h, # since some functions may be macros. (On the Sequent, we # need a special flag -Kthread to make this header compile.) # We check for pthread_join because it is in -lpthread on IRIX # while pthread_create is in libc. We check for pthread_attr_init # due to DEC craziness with -lpthreads. We check for # pthread_cleanup_push because it is one of the few pthread # functions on Solaris that doesn't have a non-functional libc stub. # We try pthread_create on general principles. AC_TRY_LINK([#include <pthread.h>], [pthread_t th; pthread_join(th, 0); pthread_attr_init(0); pthread_cleanup_push(0, 0); pthread_create(0,0,0,0); pthread_cleanup_pop(0); ], [acx_pthread_ok=yes]) LIBS="$save_LIBS" CFLAGS="$save_CFLAGS" AC_MSG_RESULT($acx_pthread_ok) if test "x$acx_pthread_ok" = xyes; then break; fi PTHREAD_LIBS="" PTHREAD_CFLAGS=""donefi# Various other checks:if test "x$acx_pthread_ok" = xyes; then save_LIBS="$LIBS" LIBS="$PTHREAD_LIBS $LIBS" save_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS $PTHREAD_CFLAGS" # Detect AIX lossage: JOINABLE attribute is called UNDETACHED. AC_MSG_CHECKING([for joinable pthread attribute]) attr_name=unknown for attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do AC_TRY_LINK([#include <pthread.h>], [int attr=$attr; return attr;], [attr_name=$attr; break]) done AC_MSG_RESULT($attr_name) if test "$attr_name" != PTHREAD_CREATE_JOINABLE; then AC_DEFINE_UNQUOTED(PTHREAD_CREATE_JOINABLE, $attr_name, [Define to necessary symbol if this constant uses a non-standard name on your system.]) fi AC_MSG_CHECKING([if more special flags are required for pthreads]) flag=no case "${host_cpu}-${host_os}" in *-aix* | *-freebsd* | *-darwin*) flag="-D_THREAD_SAFE";; *solaris* | *-osf* | *-hpux*) flag="-D_REENTRANT";; esac AC_MSG_RESULT(${flag}) if test "x$flag" != xno; then PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS" fi LIBS="$save_LIBS" CFLAGS="$save_CFLAGS" # More AIX lossage: must compile with xlc_r or cc_r if test x"$GCC" != xyes; then AC_CHECK_PROGS(PTHREAD_CC, xlc_r cc_r, ${CC}) else PTHREAD_CC=$CC fielse PTHREAD_CC="$CC"fiAC_SUBST(PTHREAD_LIBS)AC_SUBST(PTHREAD_CFLAGS)AC_SUBST(PTHREAD_CC)# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:if test x"$acx_pthread_ok" = xyes; then ifelse([$1],,AC_DEFINE(HAVE_PTHREAD,1,[Define if you have POSIX threads libraries and header files.]),[$1]) :else acx_pthread_ok=no $2fiAC_LANG_RESTORE])dnl ACX_PTHREAD# Checks for additional packages and features# optimization featuresDEFDEBUG="no"AC_ARG_ENABLE([debug], AC_HELP_STRING([--enable-debug=yes/no], [compile with g++ debug options, default is no]), [DEFDEBUG=$enableval])if test "$DEFDEBUG" = "yes"; then CFLAGS=`echo $CFLAGS | sed -e 's/-O2//g' | sed -e 's/-g//g'` CFLAGS="$CFLAGS -ggdb3" CXXFLAGS=`echo $CXXFLAGS | sed -e 's/-O2//g' | sed -e 's/-g//g'` CXXFLAGS="$CXXFLAGS -ggdb3"fiDEFOPTIMIZE="no"AC_ARG_ENABLE([optimize], AC_HELP_STRING([--enable-optimize=yes/no], [compile with g++ optimize options, default is no]), [DEFOPTIMIZE=$enableval])if test "$DEFOPTIMIZE" = "yes"; then CFLAGS=`echo $CFLAGS | sed -e 's/-O2//g' | sed -e 's/-g//g'` CFLAGS="$CFLAGS -O3 -ggdb3 " CXXFLAGS=`echo $CXXFLAGS | sed -e 's/-O2//g' | sed -e 's/-g//g'` CXXFLAGS="$CXXFLAGS -O3 -ggdb3 "fiDEFPROF="no"AC_ARG_ENABLE([prof], AC_HELP_STRING([--enable-prof=yes/no], [compile with g++ profiling options, default is no]), [DEFPROF=$enableval])if test "$DEFPROF" = "yes"; then CFLAGS=`echo $CFLAGS | sed -e 's/-O2//g' | sed -e 's/-g//g'` CFLAGS="$CFLAGS -O1 -pg" CXXFLAGS=`echo $CXXFLAGS | sed -e 's/-O2//g' | sed -e 's/-g//g'` CXXFLAGS="$CXXFLAGS -O1 -pg"fi# Using the results# ACX_PTHREAD(, AC_MSG_ERROR(Posix threads missing))LIBS="$PTHREAD_LIBS $LIBS"CFLAGS="$CFLAGS $PTHREAD_CFLAGS"CXXFLAGS="$CXXFLAGS $PTHREAD_CFLAGS"CC="$PTHREAD_CC"# CXX="$CXX $PTHREAD_CFLAGS $LIBS"AC_CONFIG_FILES([Makefile config/Makefile src/Makefile ])AC_OUTPUT
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