dnl Process this file with autoconf to produce a configure script. AC_INIT(fftw/planner.c) AM_INIT_AUTOMAKE(fftw, 2.1.5) dnl This is the version info according to the libtool versioning system. dnl It does *not* correspond to the release number. SHARED_VERSION_INFO="2:7:0" AM_CONFIG_HEADER(fftw/config.h fftw/fftw.h) AM_ENABLE_SHARED(no) dnl ----------------------------------------------------------------------- AC_ARG_ENABLE(threads, [ --enable-threads compile FFTW SMP threads library], enable_threads=$enableval, enable_threads=no) AC_ARG_WITH(openmp, [ --with-openmp use OpenMP directives instead of a threads library], with_openmp=$withval, with_openmp=no) AC_ARG_WITH(sgimp, [ --with-sgi-mp use SGI MP directives instead of a threads library], with_sgimp=$withval, with_sgimp=no) AC_ARG_ENABLE(mpi, [ --enable-mpi compile FFTW MPI library], enable_mpi=$enableval, enable_mpi=no) AC_ARG_ENABLE(fortran, [ --disable-fortran don't include fortran-callable wrappers], enable_fortran=$enableval, enable_fortran=yes) AC_ARG_WITH(gcc, [ --with-gcc use gcc instead of the native compiler cc], ok=$withval, ok=no) if test "$ok" = "yes"; then CC=gcc fi AC_ARG_ENABLE(float, [ --enable-float compile fftw for single precision], enable_float=$enableval, enable_float=no) if test "$enable_float" = "yes"; then AC_DEFINE(FFTW_ENABLE_FLOAT) fi FFTW_PREFIX="" AC_ARG_ENABLE(type-prefix, [ --enable-type-prefix prefix files with d/s to indicate precision], ok=$enableval, ok=no) AC_MSG_CHECKING([type prefix for installed files]) if test "$ok" = "yes"; then if test "$enable_float" = "yes"; then FFTW_PREFIX="s" else FFTW_PREFIX="d" fi AC_MSG_RESULT($FFTW_PREFIX) elif test "$ok" = "no"; then AC_MSG_RESULT([(none)]) else FFTW_PREFIX="$ok" AC_MSG_RESULT($FFTW_PREFIX) fi AC_SUBST(FFTW_PREFIX) FFTW_PREFIX1="xyz" if test -n "$FFTW_PREFIX"; then FFTW_PREFIX1="$FFTW_PREFIX" fi AC_SUBST(FFTW_PREFIX1) AC_ARG_ENABLE(i386-hacks, [ --enable-i386-hacks enable gcc/x86 specific performance hacks], ok=$enableval, ok=no) if test "$ok" = "yes"; then AC_DEFINE(FFTW_ENABLE_I386_HACKS) fi AC_ARG_ENABLE(pentium-timer, [ --enable-pentium-timer enable high resolution Pentium timer], ok=$enableval, ok=no) if test "$ok" = "yes"; then AC_DEFINE(FFTW_ENABLE_PENTIUM_TIMER) fi AC_ARG_ENABLE(debug, [ --enable-debug compile fftw with extra runtime checks for debugging], ok=$enableval, ok=no) if test "$ok" = "yes"; then AC_DEFINE(FFTW_DEBUG) fi AC_ARG_ENABLE(debug-alignment, [ --enable-debug-alignment enable runtime checks for alignment on x86], ok=$enableval, ok=no) if test "$ok" = "yes"; then AC_DEFINE(FFTW_DEBUG_ALIGNMENT) fi AC_ARG_ENABLE(vec-recurse, [ --enable-vec-recurse enable experimental performance hack], ok=$enableval, ok=no) if test "$ok" = "yes"; then AC_DEFINE(FFTW_ENABLE_VECTOR_RECURSE) fi dnl ----------------------------------------------------------------------- # Use native cc if present AC_MSG_CHECKING([for vendor's cc to be used instead of gcc]) AC_CHECK_PROG(CC, cc, cc) dnl Checks for programs. AC_PROG_CC ACX_PROG_CC_EGCS AC_PROG_INSTALL AC_PROG_MAKE_SET AC_PROG_RANLIB AC_PROG_LN_S AM_PROG_LIBTOOL AC_CHECK_PROG(PERL, perl, perl, echo perl) AC_SUBST(PERL) dnl ----------------------------------------------------------------------- if test "$enable_fortran" = "yes"; then AC_PROG_F77 if test -z "$F77"; then enable_fortran=no AC_MSG_WARN([*** Couldn't find f77 compiler; switching to --disable-fortran.]) fi AC_F77_DUMMY_MAIN([], [enable_fortran=no AC_MSG_WARN([*** Couldn't figure out how to link C and Fortran; switching to --disable-fortran.])]) fi if test "x$enable_fortran" = xyes; then AC_F77_WRAPPERS fi dnl ----------------------------------------------------------------------- AC_SUBST(SHARED_VERSION_INFO) AC_DEFINE_UNQUOTED(FFTW_VERSION, "$VERSION") # Get the version number that will be appended to shared libraries: SHARED_VERSION=`echo $SHARED_VERSION_INFO | awk -F':' '{ print $1 "." $3 "." $2 }'` AC_SUBST(SHARED_VERSION) ACX_PROG_CC_MAXOPT ACX_GCC_ALIGNS_STACK(AC_DEFINE(FFTW_GCC_ALIGNS_STACK), [ if test "$enable_i386_hacks" = yes; then if test "${acx_gcc_stack_align_bug-no}" = yes; then # we are using a gcc with a stack alignment bug, and we should # turn stack alignment off so that our own hacks work instead. ACX_CHECK_CC_FLAGS(-mpreferred-stack-boundary=2, m_psb_2, [CFLAGS="$CFLAGS -mpreferred-stack-boundary=2"], AC_MSG_ERROR([can't disable buggy stack alignment])) fi fi]) if test "${enable_debug}" = "yes"; then CFLAGS="-g" fi dnl add gcc warnings, in debug/maintainer mode only if test "$enable_debug" = yes || test "$USE_MAINTAINER_MODE" = yes; then if test $ac_cv_prog_gcc = yes; then CFLAGS="$CFLAGS -Wall -W -Wcast-qual -Wpointer-arith -Wcast-align -pedantic -Wno-long-long -Wshadow -Wbad-function-cast -Wwrite-strings -Wstrict-prototypes -Wredundant-decls -Wnested-externs" # -Wundef -Wconversion -Wmissing-prototypes -Wmissing-declarations fi fi dnl Checks for libraries. AC_CHECK_LIB(m, sqrt) dnl Checks for header files. AC_HEADER_STDC AC_CHECK_HEADERS(sys/time.h unistd.h getopt.h malloc.h) dnl Checks for typedefs, structures, and compiler characteristics. AC_C_CONST AC_TYPE_SIZE_T AC_HEADER_TIME if test $ac_cv_c_const = no; then echo "**************************************************************" echo "* WARNING: The "'``'"const'' keyword does not appear to work *" echo "* properly on this system. Expect problems. *" echo "* (It's >= 1998. Get an ANSI C compiler.) *" case "${host_cpu}-${host_os}" in sparc-solaris2*) echo "* Maybe you are using the wrong C compiler. Please see the *" echo "* FFTW FAQ for more information. *" ;; esac echo "**************************************************************" fi dnl Checks for library functions. AC_FUNC_ALLOCA AC_CHECK_FUNCS(gettimeofday) AC_CHECK_FUNCS(BSDgettimeofday) AC_CHECK_FUNCS(gethrtime) AC_CHECK_FUNCS(getopt) AC_CHECK_FUNCS(getopt_long) AC_MSG_CHECKING([for isnan]) AC_TRY_LINK([#include ], if (!isnan(3.14159)) isnan(2.7183);, ok=yes, ok=no) if test "$ok" = "yes"; then AC_DEFINE(HAVE_ISNAN) fi AC_MSG_RESULT(${ok}) # Check for hrtime_t data type; some systems (AIX) seem to have # a function called gethrtime but no hrtime_t! AC_MSG_CHECKING([for hrtime_t]) AC_TRY_LINK([ #ifdef HAVE_SYS_TIME_H #include #endif ], [hrtime_t foobar;], ok=yes, ok=no) if test "$ok" = "yes"; then AC_DEFINE(HAVE_HRTIME_T) fi AC_MSG_RESULT(${ok}) AC_CHECK_SIZEOF(int, 0) AC_CHECK_SIZEOF(long long, 0) AC_ARG_ENABLE(unsafe-mulmod, [ --enable-unsafe-mulmod risk overflow for large prime sizes], enable_unsafe_mulmod=$enableval, enable_unsafe_mulmod=no) if test "$enable_unsafe_mulmod" = "yes"; then AC_DEFINE(FFTW_ENABLE_UNSAFE_MULMOD) fi dnl make a couple of jokes for user's amusement. See gcc/future.options in dnl egcs distribution ACX_CHECK_CC_FLAGS("-fkeep-programmers-inline",fkeep_programmers_inline) ACX_CHECK_CC_FLAGS("-vomit-frame-pointer",vomit_frame_pointer) dnl ----------------------------------------------------------------------- dnl Check for threads library... FFTW_THREADS_LIBLIST="" FFTW_THREADS_INCLUDELIST="" FFTW_THREADS_PROGLIST="" THREADLIBS="" if test "$enable_threads" = "yes"; then if test "$with_openmp"x != nox; then AC_MSG_CHECKING(how to enable OpenMP) omp_enabler=unknown save_CFLAGS="$CFLAGS" CFLAGS="$save_CFLAGS -omp" AC_TRY_LINK_FUNC(omp_set_num_threads,THREADLIBS=" " omp_enabler="$CC -omp") if test -z "$THREADLIBS"; then CFLAGS="$save_CFLAGS -mp" AC_TRY_LINK_FUNC(omp_set_num_threads,THREADLIBS=" " omp_enabler="$CC -mp") fi if test -z "$THREADLIBS"; then CFLAGS="$save_CFLAGS" AC_TRY_LINK_FUNC(omp_set_num_threads,THREADLIBS=" " omp_enabler="automatic") fi AC_MSG_RESULT($omp_enabler) if test -z "$THREADLIBS"; then AC_MSG_ERROR([don't know how to enable OpenMP]) fi AC_DEFINE(FFTW_USING_OPENMP_THREADS) fi if test "$with_sgimp"x != nox; then AC_MSG_CHECKING(how to enable SGI MP) mp_enabler=unknown save_CFLAGS="$CFLAGS" CFLAGS="$save_CFLAGS -mp" AC_TRY_LINK_FUNC(mp_set_numthreads,THREADLIBS=" " mp_enabler="$CC -mp") if test -z "$THREADLIBS"; then CFLAGS="$save_CFLAGS" AC_TRY_LINK_FUNC(mp_numthreads,THREADLIBS=" " mp_enabler="automatic") fi AC_MSG_RESULT($mp_enabler) if test -z "$THREADLIBS"; then AC_MSG_ERROR([don't know how to enable SGI MP]) fi AC_DEFINE(FFTW_USING_SGIMP_THREADS) fi # POSIX threads, the default choice: if test -z "$THREADLIBS"; then sinclude(acx_pthread.m4) ACX_PTHREAD([THREADLIBS="$PTHREAD_LIBS " CFLAGS="$CFLAGS $PTHREAD_CFLAGS" CC="$PTHREAD_CC" AC_DEFINE(FFTW_USING_POSIX_THREADS)]) fi # Solaris threads: if test -z "$THREADLIBS"; then AC_CHECK_LIB(thread, thr_create, [THREADLIBS="-lthread" AC_DEFINE(FFTW_USING_SOLARIS_THREADS)]) fi # Mach C threads: if test -z "$THREADLIBS"; then AC_CHECK_FUNC(cthread_fork, [THREADLIBS=" " AC_DEFINE(FFTW_USING_MACH_THREADS)]) AC_CHECK_HEADERS(mach/cthreads.h cthreads.h cthread.h) fi if test -z "$THREADLIBS"; then AC_CHECK_LIB(cthread, cthread_fork, [THREADLIBS="-lcthread" AC_DEFINE(FFTW_USING_MACH_THREADS)]) AC_CHECK_HEADERS(mach/cthreads.h cthreads.h cthread.h) fi if test -z "$THREADLIBS"; then AC_CHECK_LIB(cthreads, cthread_fork, [THREADLIBS="-lcthreads" AC_DEFINE(FFTW_USING_MACH_THREADS)]) AC_CHECK_HEADERS(mach/cthreads.h cthreads.h cthread.h) fi # BeOS threads: if test -z "$THREADLIBS"; then AC_CHECK_FUNC(spawn_thread, [THREADLIBS=" " AC_DEFINE(FFTW_USING_BEOS_THREADS)]) fi if test -z "$THREADLIBS"; then AC_MSG_ERROR(couldn't find threads library for --enable-threads) else FFTW_THREADS_LIBLIST="lib${FFTW_PREFIX}fftw_threads.la lib${FFTW_PREFIX}rfftw_threads.la" FFTW_THREADS_INCLUDELIST="${FFTW_PREFIX}fftw_threads.h ${FFTW_PREFIX}rfftw_threads.h" FFTW_THREADS_PROGLIST="fftw_threads_test rfftw_threads_test" fi fi AC_SUBST(FFTW_THREADS_LIBLIST) AC_SUBST(FFTW_THREADS_INCLUDELIST) AC_SUBST(FFTW_THREADS_PROGLIST) AC_SUBST(THREADLIBS) dnl ----------------------------------------------------------------------- dnl Check for mpi library... FFTW_MPI_LIBLIST="" FFTW_MPI_INCLUDELIST="" FFTW_MPI_PROGLIST="" sinclude(acx_mpi.m4) if test "$enable_mpi" = "yes"; then ACX_MPI([], [AC_MSG_ERROR([couldn't find mpi library for --enable-mpi])]) FFTW_MPI_LIBLIST="lib${FFTW_PREFIX}fftw_mpi.la lib${FFTW_PREFIX}rfftw_mpi.la" FFTW_MPI_INCLUDELIST="${FFTW_PREFIX}fftw_mpi.h ${FFTW_PREFIX}rfftw_mpi.h" FFTW_MPI_PROGLIST="test_sched test_transpose_mpi fftw_mpi_test rfftw_mpi_test" AC_MSG_CHECKING([for MPI_Comm_f2c]) save_CC="$CC" CC="$MPICC" ok=yes AC_TRY_LINK([#include ], [MPI_Comm_f2c(0);], [AC_DEFINE(HAVE_MPI_COMM_F2C)], [ok=no]) AC_MSG_RESULT($ok) CC="$save_CC" else MPICC="$CC" AC_SUBST(MPICC) fi AC_SUBST(FFTW_MPI_LIBLIST) AC_SUBST(FFTW_MPI_INCLUDELIST) AC_SUBST(FFTW_MPI_PROGLIST) dnl ----------------------------------------------------------------------- AC_OUTPUT(fftw/Makefile tests/Makefile rfftw/Makefile doc/Makefile Makefile threads/Makefile mpi/Makefile fftw.spec) case "${host_cpu}" in i?86) if test "${enable_i386_hacks-no}" != "yes"; then if test "${enable_float-no}" != "yes"; then if test "${acx_gcc_aligns_stack-no}" != "yes"; then echo "**************************************************************" echo "* If you are running an x86 system with gcc, also try *" echo "* configure --enable-i386-hacks *" echo "* which might produce significant speed improvements. *" echo "* (See the Installation chapter of the manual for more *" echo "* details) *" echo "**************************************************************" fi fi fi esac