dnl Process this file with autoconf to produce a configure script. dnl Define the fftw version number as M4 macros, so that we can enforce dnl the invariant that the minor version number in FFTW-X.Y.MINOR is the same dnl as the revision number in SHARED_VERSION_INFO. define(FFTW_MAJOR_VERSION, 3.3)dnl define(FFTW_MINOR_VERSION, 8)dnl dnl Version number of the FFTW source package. AC_INIT(fftw, FFTW_MAJOR_VERSION.FFTW_MINOR_VERSION, fftw@fftw.org) AC_CONFIG_SRCDIR(kernel/ifftw.h) dnl Version number for libtool shared libraries. Libtool wants a string dnl of the form CURRENT:REVISION:AGE. We adopt the convention that dnl REVISION is the same as the FFTW minor version number. dnl fftw-3.1.x was 4:x:1 dnl fftw-3.2.x was 5:x:2 dnl fftw-3.3.x was 6:x:3 for x < 4 dnl fftw-3.3.4 was 7:x:4 dnl fftw-3.3.5 was 8:x:5 (added planner hooks) dnl fftw-3.3.6 was 8:x:6 (8:x:6 is a bug, should have been 8:x:5. No API changes) dnl fftw-3.3.6.1 fixes the 8:x:6 screwup dnl fftw-3.3.7 was 8:x:5 (No API changes) dnl fftw-3.3.8 was 8:x:5 (No API changes) SHARED_VERSION_INFO="8:FFTW_MINOR_VERSION:5" # CURRENT:REVISION:AGE AM_INIT_AUTOMAKE(1.7) AM_CONFIG_HEADER(config.h) AC_CONFIG_MACRO_DIR([m4]) AM_MAINTAINER_MODE AC_SUBST(SHARED_VERSION_INFO) AC_DISABLE_SHARED dnl to hell with shared libraries AC_CANONICAL_HOST dnl configure options case "${host_cpu}" in powerpc*) arch_prefers_fma=yes;; ia64*) arch_prefers_fma=yes;; hppa*) arch_prefers_fma=yes;; mips64*) arch_prefers_fma=yes;; *) arch_prefers_fma=no;; esac AC_ARG_ENABLE(debug, [AC_HELP_STRING([--enable-debug],[compile fftw with extra runtime checks for debugging])], ok=$enableval, ok=no) if test "$ok" = "yes"; then AC_DEFINE(FFTW_DEBUG,1,[Define to enable extra FFTW debugging code.]) fi AC_ARG_ENABLE(doc, [AC_HELP_STRING([--disable-doc],[disable building the documentation])], build_doc=$enableval, build_doc=yes) AM_CONDITIONAL(BUILD_DOC, test x"$build_doc" = xyes) AC_ARG_ENABLE(random-estimator, [AC_HELP_STRING([--enable-random-estimator],[enable pseudorandom estimator (debugging hack)])], ok=$enableval, ok=no) if test "$ok" = "yes"; then AC_DEFINE(FFTW_RANDOM_ESTIMATOR,1,[Define to enable pseudorandom estimate planning for debugging.]) CHECK_PL_OPTS="--estimate" fi AC_ARG_ENABLE(alloca, [AC_HELP_STRING([--disable-alloca],[disable use of the alloca() function (may be broken on mingw64)])], ok=$enableval, ok=yes) if test "$ok" = "yes"; then AC_DEFINE(FFTW_ENABLE_ALLOCA,1,[Define to enable the use of alloca().]) fi AC_ARG_ENABLE(single, [AC_HELP_STRING([--enable-single],[compile fftw in single precision])], ok=$enableval, ok=no) AC_ARG_ENABLE(float, [AC_HELP_STRING([--enable-float],[synonym for --enable-single])], ok=$enableval) if test "$ok" = "yes"; then AC_DEFINE(FFTW_SINGLE,1,[Define to compile in single precision.]) AC_DEFINE(BENCHFFT_SINGLE,1,[Define to compile in single precision.]) PRECISION=s else PRECISION=d fi AM_CONDITIONAL(SINGLE, test "$ok" = "yes") AC_ARG_ENABLE(long-double, [AC_HELP_STRING([--enable-long-double],[compile fftw in long-double precision])], ok=$enableval, ok=no) if test "$ok" = "yes"; then if test "$PRECISION" = "s"; then AC_MSG_ERROR([--enable-single/--enable-long-double conflict]) fi AC_DEFINE(FFTW_LDOUBLE,1,[Define to compile in long-double precision.]) AC_DEFINE(BENCHFFT_LDOUBLE,1,[Define to compile in long-double precision.]) PRECISION=l fi AM_CONDITIONAL(LDOUBLE, test "$ok" = "yes") AC_ARG_ENABLE(quad-precision, [AC_HELP_STRING([--enable-quad-precision],[compile fftw in quadruple precision if available])], ok=$enableval, ok=no) if test "$ok" = "yes"; then if test "$PRECISION" != "d"; then AC_MSG_ERROR([conflicting precisions specified]) fi AC_DEFINE(FFTW_QUAD,1,[Define to compile in quad precision.]) AC_DEFINE(BENCHFFT_QUAD,1,[Define to compile in quad precision.]) PRECISION=q fi AM_CONDITIONAL(QUAD, test "$ok" = "yes") AC_SUBST(PRECISION) AC_SUBST(CHECK_PL_OPTS) dnl SSE/SSE2 theory: dnl dnl Historically, you had to supply --enable-sse in single precision and --enable-sse2 dnl in double precision. dnl dnl This behavior is pointless in 2016. --enable-sse2 now works in both precisions, dnl and is interpreted as --enable-sse in single precision. The old flag --enable--se dnl is still supported in single-precision only. AC_ARG_ENABLE(sse, [AC_HELP_STRING([--enable-sse],[enable SSE optimizations])], have_sse=$enableval, have_sse=no) if test "$have_sse" = "yes"; then if test "$PRECISION" != "s"; then AC_MSG_ERROR([SSE requires single precision]) fi fi AC_ARG_ENABLE(sse2, [AC_HELP_STRING([--enable-sse2],[enable SSE/SSE2 optimizations])], have_sse2=$enableval, have_sse2=no) if test "$have_sse" = "yes"; then have_sse2=yes; fi if test "$have_sse2" = "yes"; then AC_DEFINE(HAVE_SSE2,1,[Define to enable SSE/SSE2 optimizations.]) if test "$PRECISION" != "d" -a "$PRECISION" != "s"; then AC_MSG_ERROR([SSE2 requires single or double precision]) fi fi AM_CONDITIONAL(HAVE_SSE2, test "$have_sse2" = "yes") AC_ARG_ENABLE(avx, [AC_HELP_STRING([--enable-avx],[enable AVX optimizations])], have_avx=$enableval, have_avx=no) if test "$have_avx" = "yes"; then AC_DEFINE(HAVE_AVX,1,[Define to enable AVX optimizations.]) if test "$PRECISION" != "d" -a "$PRECISION" != "s"; then AC_MSG_ERROR([AVX requires single or double precision]) fi fi AM_CONDITIONAL(HAVE_AVX, test "$have_avx" = "yes") AC_ARG_ENABLE(avx2, [AC_HELP_STRING([--enable-avx2],[enable AVX2 optimizations])], have_avx2=$enableval, have_avx2=no) if test "$have_avx2" = "yes"; then AC_DEFINE(HAVE_AVX2,1,[Define to enable AVX2 optimizations.]) if test "$PRECISION" != "d" -a "$PRECISION" != "s"; then AC_MSG_ERROR([AVX2 requires single or double precision]) fi fi AM_CONDITIONAL(HAVE_AVX2, test "$have_avx2" = "yes") AC_ARG_ENABLE(avx512, [AC_HELP_STRING([--enable-avx512],[enable AVX512 optimizations])], have_avx512=$enableval, have_avx512=no) if test "$have_avx512" = "yes"; then AC_DEFINE(HAVE_AVX512,1,[Define to enable AVX512 optimizations.]) if test "$PRECISION" != "d" -a "$PRECISION" != "s"; then AC_MSG_ERROR([AVX512 requires single or double precision]) fi fi AM_CONDITIONAL(HAVE_AVX512, test "$have_avx512" = "yes") dnl 128-bit AVX is special. There is no reason to use it on Intel processors dnl since SSE2 is just as fast. However, on AMD processors we can both use dnl FMA4, and 128-bit SIMD is better than 256-bit since core pairs in a dnl compute unit can execute two 128-bit instructions independently. AC_ARG_ENABLE(avx-128-fma, [AC_HELP_STRING([--enable-avx-128-fma],[enable AVX128/FMA optimizations])], have_avx_128_fma=$enableval, have_avx_128_fma=no) if test "$have_avx_128_fma" = "yes"; then AC_DEFINE(HAVE_AVX_128_FMA,1,[Define to enable 128-bit FMA AVX optimization]) AVX_128_FMA_CFLAGS="${AVX_CFLAGS} -mfma4" AC_SUBST(AVX_128_FMA_CFLAGS) fi AM_CONDITIONAL(HAVE_AVX_128_FMA, test "$have_avx_128_fma" = "yes") AC_ARG_ENABLE(kcvi, [AC_HELP_STRING([--enable-kcvi],[enable Knights Corner vector instructions optimizations])], have_kcvi=$enableval, have_kcvi=no) if test "$have_kcvi" = "yes"; then AC_DEFINE(HAVE_KCVI,1,[Define to enable KCVI optimizations.]) if test "$PRECISION" != "d" -a "$PRECISION" != "s"; then AC_MSG_ERROR([Knights Corner vector instructions requires single or double precision]) fi fi AM_CONDITIONAL(HAVE_KCVI, test "$have_kcvi" = "yes") AC_ARG_ENABLE(altivec, [AC_HELP_STRING([--enable-altivec],[enable Altivec optimizations])], have_altivec=$enableval, have_altivec=no) if test "$have_altivec" = "yes"; then AC_DEFINE(HAVE_ALTIVEC,1,[Define to enable Altivec optimizations.]) if test "$PRECISION" != "s"; then AC_MSG_ERROR([Altivec requires single precision]) fi fi AM_CONDITIONAL(HAVE_ALTIVEC, test "$have_altivec" = "yes") AC_ARG_ENABLE(vsx, [AC_HELP_STRING([--enable-vsx],[enable IBM VSX optimizations])], have_vsx=$enableval, have_vsx=no) if test "$have_vsx" = "yes"; then AC_DEFINE(HAVE_VSX,1,[Define to enable IBM VSX optimizations.]) fi AM_CONDITIONAL(HAVE_VSX, test "$have_vsx" = "yes") AC_ARG_ENABLE(neon, [AC_HELP_STRING([--enable-neon],[enable ARM NEON optimizations])], have_neon=$enableval, have_neon=no) if test "$have_neon" = "yes"; then AC_DEFINE(HAVE_NEON,1,[Define to enable ARM NEON optimizations.]) case "${host_cpu}" in aarch64) ;; *) if test "$PRECISION" != "s"; then AC_MSG_ERROR([NEON requires single precision]) fi ;; esac fi AM_CONDITIONAL(HAVE_NEON, test "$have_neon" = "yes") AC_ARG_ENABLE(armv8-pmccntr-el0, [AC_HELP_STRING([--enable-armv8-pmccntr-el0],[enable the cycle counter on ARMv8 via the PMCCNTR_EL0 register (see README-perfcounters for details and mandatory instructions)])], have_armv8pmccntrel0=$enableval) if test "$have_armv8pmccntrel0"x = "yes"x; then AC_DEFINE(HAVE_ARMV8_PMCCNTR_EL0,1,[Define if you have enabled the PMCCNTR_EL0 cycle counter on ARMv8]) fi AC_ARG_ENABLE(armv8-cntvct-el0, [AC_HELP_STRING([--enable-armv8-cntvct-el0],[enable the cycle counter on ARMv8 via the CNTVCT_EL0 register (see README-perfcounters for details and mandatory instructions)])], have_armv8cntvctel0=$enableval) if test "$have_armv8cntvctel0"x = "yes"x; then AC_DEFINE(HAVE_ARMV8_CNTVCT_EL0,1,[Define if you have enabled the CNTVCT_EL0 cycle counter on ARMv8]) fi AC_ARG_ENABLE(armv7a-cntvct, [AC_HELP_STRING([--enable-armv7a-cntvct],[enable the cycle counter on Armv7a via the CNTVCT register (see README-perfcounters for details and mandatory instructions)])], have_armv7acntvct=$enableval) if test "$have_armv7acntvct"x = "yes"x; then AC_DEFINE(HAVE_ARMV7A_CNTVCT,1,[Define if you have enabled the CNTVCT cycle counter on ARMv7a]) fi AC_ARG_ENABLE(armv7a-pmccntr, [AC_HELP_STRING([--enable-armv7a-pmccntr],[enable the cycle counter on Armv7a via the PMCCNTR register (see README-perfcounters for details and mandatory instructions)])], have_armv7apmccntr=$enableval) if test "$have_armv7apmccntr"x = "yes"x; then AC_DEFINE(HAVE_ARMV7A_PMCCNTR,1,[Define if you have enabled the PMCCNTR cycle counter on ARMv7a]) fi AC_ARG_ENABLE(generic-simd128, [AC_HELP_STRING([--enable-generic-simd128],[enable generic (gcc) 128-bit SIMD optimizations])], have_generic_simd128=$enableval, have_generic_simd128=no) if test "$have_generic_simd128" = "yes"; then AC_DEFINE(HAVE_GENERIC_SIMD128,1,[Define to enable generic (gcc) 128-bit SIMD optimizations.]) fi AM_CONDITIONAL(HAVE_GENERIC_SIMD128, test "$have_generic_simd128" = "yes") AC_ARG_ENABLE(generic-simd256, [AC_HELP_STRING([--enable-generic-simd256],[enable generic (gcc) 256-bit SIMD optimizations])], have_generic_simd256=$enableval, have_generic_simd256=no) if test "$have_generic_simd256" = "yes"; then AC_DEFINE(HAVE_GENERIC_SIMD256,1,[Define to enable generic (gcc) 256-bit SIMD optimizations.]) fi AM_CONDITIONAL(HAVE_GENERIC_SIMD256, test "$have_generic_simd256" = "yes") dnl FIXME: dnl AC_ARG_ENABLE(mips-ps, [AC_HELP_STRING([--enable-mips-ps],[enable MIPS pair-single optimizations])], have_mips_ps=$enableval, have_mips_ps=no) dnl if test "$have_mips_ps" = "yes"; then dnl AC_DEFINE(HAVE_MIPS_PS,1,[Define to enable MIPS paired-single optimizations.]) dnl if test "$PRECISION" != "s"; then dnl AC_MSG_ERROR([MIPS paired-single requires single precision]) dnl fi dnl fi dnl AM_CONDITIONAL(HAVE_MIPS_PS, test "$have_mips_ps" = "yes") AC_ARG_WITH(slow-timer, [AC_HELP_STRING([--with-slow-timer],[use low-precision timers (SLOW)])], with_slow_timer=$withval, with_slow_timer=no) if test "$with_slow_timer" = "yes"; then AC_DEFINE(WITH_SLOW_TIMER,1,[Use low-precision timers, making planner very slow]) fi AC_ARG_ENABLE(mips_zbus_timer, [AC_HELP_STRING([--enable-mips-zbus-timer],[use MIPS ZBus cycle-counter])], have_mips_zbus_timer=$enableval, have_mips_zbus_timer=no) if test "$have_mips_zbus_timer" = "yes"; then AC_DEFINE(HAVE_MIPS_ZBUS_TIMER,1,[Define to enable use of MIPS ZBus cycle-counter.]) fi AC_ARG_WITH(our-malloc, [AC_HELP_STRING([--with-our-malloc],[use our aligned malloc (helpful for Win32)])], with_our_malloc=$withval, with_our_malloc=no) AC_ARG_WITH(our-malloc16, [AC_HELP_STRING([--with-our-malloc16],[Obsolete alias for --with-our-malloc16])], with_our_malloc=$withval) if test "$with_our_malloc" = "yes"; then AC_DEFINE(WITH_OUR_MALLOC,1,[Use our own aligned malloc routine; mainly helpful for Windows systems lacking aligned allocation system-library routines.]) fi AC_ARG_WITH(windows-f77-mangling, [AC_HELP_STRING([--with-windows-f77-mangling],[use common Win32 Fortran interface styles])], with_windows_f77_mangling=$withval, with_windows_f77_mangling=no) if test "$with_windows_f77_mangling" = "yes"; then AC_DEFINE(WINDOWS_F77_MANGLING,1,[Use common Windows Fortran mangling styles for the Fortran interfaces.]) fi AC_ARG_WITH(incoming-stack-boundary, [AC_HELP_STRING([--with-incoming-stack-boundary=X],[Assume that stack is aligned to (1<]) CC=$save_CC if test 0 = $ac_cv_sizeof_MPI_Fint; then AC_MSG_WARN([sizeof(MPI_Fint) test failed]); dnl As a backup, assume Fortran integer == C int AC_CHECK_SIZEOF(int) if test 0 = $ac_cv_sizeof_int; then AC_MSG_ERROR([sizeof(int) test failed]); fi ac_cv_sizeof_MPI_Fint=$ac_cv_sizeof_int fi C_MPI_FINT=C_INT`expr $ac_cv_sizeof_MPI_Fint \* 8`_T AC_SUBST(C_MPI_FINT) fi AM_CONDITIONAL(MPI, test "$enable_mpi" = "yes") dnl ----------------------------------------------------------------------- dnl determine CFLAGS first AX_CC_MAXOPT case "${ax_cv_c_compiler_vendor}" in intel) # Stop icc from defining __GNUC__, except on MacOS where this fails case "${host_os}" in *darwin*) ;; # icc -no-gcc fails to compile some system headers *) AX_CHECK_COMPILER_FLAGS([-no-gcc], [CC="$CC -no-gcc"]) ;; esac ;; hp) # must (sometimes) manually increase cpp limits to handle fftw3.h AX_CHECK_COMPILER_FLAGS([-Wp,-H128000], [CC="$CC -Wp,-H128000"]) ;; portland) # -Masmkeyword required for asm("") cycle counters AX_CHECK_COMPILER_FLAGS([-Masmkeyword], [CC="$CC -Masmkeyword"]) ;; esac dnl Determine SIMD CFLAGS at least for gcc and icc case "${ax_cv_c_compiler_vendor}" in gnu|intel) # SSE/SSE2 if test "$have_sse2" = "yes" -a "x$SSE2_CFLAGS" = x; then if test "$PRECISION" = d; then flag=msse2; else flag=msse; fi AX_CHECK_COMPILER_FLAGS(-$flag, [SSE2_CFLAGS="-$flag"], [AC_MSG_ERROR([Need a version of gcc with -$flag])]) fi # AVX if test "$have_avx" = "yes" -a "x$AVX_CFLAGS" = x; then AX_CHECK_COMPILER_FLAGS(-mavx, [AVX_CFLAGS="-mavx"], [AC_MSG_ERROR([Need a version of gcc with -mavx])]) fi # AVX2 # gcc-4.8 works with -march=core-avx2, but -mavx2 is not enough. # Later versions seem to happy with -mavx2, so try the arch one first. if test "$have_avx2" = "yes" -a "x$AVX2_CFLAGS" = x; then AX_CHECK_COMPILER_FLAGS(-march=core-avx2, [AVX2_CFLAGS="-march=core-avx2"], [AX_CHECK_COMPILER_FLAGS(-mavx2, [AVX2_CFLAGS="-mavx2"], [AC_MSG_ERROR([Need a version of gcc with either -march=core-avx2 or -mavx2])])]) AX_CHECK_COMPILER_FLAGS(-mfma, [AVX2_CFLAGS="$AVX2_CFLAGS -mfma"], [AC_MSG_WARN([Need a version of gcc with -mfma (harmless for icc)])]) fi # AVX512 if test "$have_avx512" = "yes" -a "x$AVX512_CFLAGS" = x; then AX_CHECK_COMPILER_FLAGS(-mavx512f, [AVX512_CFLAGS="-mavx512f"], [AC_MSG_ERROR([Need a version of gcc with -mavx512f])]) fi if test "$host_vendor" = "apple"; then # We need to tell gcc to use an external assembler to get AVX/AVX2 with gcc on OS X AX_CHECK_COMPILER_FLAGS([-Wa,-q], [CFLAGS="$CFLAGS -Wa,-q"]) # Disable the new compact unwinding format so we avoid warnings/potential errors. AX_CHECK_COMPILER_FLAGS([-Wl,-no_compact_unwind], [CFLAGS="$CFLAGS -Wl,-no_compact_unwind"]) fi # KCVI if test "$have_kcvi" = "yes" -a "x$KCVI_CFLAGS" = x; then AX_CHECK_COMPILER_FLAGS(-mmic, [KCVI_CFLAGS="-mmic"], [AC_MSG_ERROR([Need a version of icc with -mmic])]) fi if test "$have_altivec" = "yes" -a "x$ALTIVEC_CFLAGS" = x; then # -DFAKE__VEC__ is a workaround because gcc-3.3 does not # #define __VEC__ with -maltivec. AX_CHECK_COMPILER_FLAGS(-faltivec, [ALTIVEC_CFLAGS="-faltivec"], [AX_CHECK_COMPILER_FLAGS(-maltivec -mabi=altivec, [ALTIVEC_CFLAGS="-maltivec -mabi=altivec -DFAKE__VEC__"], [AX_CHECK_COMPILER_FLAGS(-fvec, [ALTIVEC_CFLAGS="-fvec"], [AC_MSG_ERROR([Need a version of gcc with -maltivec])])])]) fi case "${host_cpu}" in aarch64) ;; *) if test "$have_neon" = "yes" -a "x$NEON_CFLAGS" = x; then AX_CHECK_COMPILER_FLAGS(-mfpu=neon, [NEON_CFLAGS="-mfpu=neon"], [AC_MSG_ERROR([Need a version of gcc with -mfpu=neon])]) fi ;; esac if test "$have_vsx" = "yes" -a "x$VSX_CFLAGS" = x; then AX_CHECK_COMPILER_FLAGS(-mvsx, [VSX_CFLAGS="-mvsx"], [AC_MSG_ERROR([Need a version of gcc with -mvsx])]) fi dnl FIXME: dnl elif test "$have_mips_ps" = "yes"; then dnl # Just punt here and use only new 4.2 compiler :( dnl # Should add section for older compilers... dnl AX_CHECK_COMPILER_FLAGS(-mpaired-single, dnl [SIMD_CFLAGS="-mpaired-single"], dnl #[AC_MSG_ERROR([Need a version of gcc with -mpaired-single])]) dnl [AX_CHECK_COMPILER_FLAGS(-march=mips64, dnl [SIMD_CFLAGS="-march=mips64"], dnl [AC_MSG_ERROR( dnl [Need a version of gcc with -mpaired-single or -march=mips64]) dnl ])]) dnl fi ;; clang) if test "$have_avx" = "yes" -a "x$AVX_CFLAGS" = x; then AX_CHECK_COMPILER_FLAGS(-mavx, [AVX_CFLAGS="-mavx"], [AC_MSG_ERROR([Need a version of clang with -mavx])]) fi if test "$have_avx2" = "yes" -a "x$AVX2_CFLAGS" = x; then AX_CHECK_COMPILER_FLAGS(-mavx2, [AVX2_CFLAGS="-mavx2"], [AC_MSG_ERROR([Need a version of clang with -mavx2])]) AX_CHECK_COMPILER_FLAGS(-mfma, [AVX2_CFLAGS="$AVX2_CFLAGS -mfma"]) fi if test "$have_vsx" = "yes" -a "x$VSX_CFLAGS" = x; then # clang appears to need both -mvsx and -maltivec for VSX AX_CHECK_COMPILER_FLAGS(-maltivec, [VSX_CFLAGS="-maltivec"], [AC_MSG_ERROR([Need a version of gcc with -maltivec])]) AX_CHECK_COMPILER_FLAGS(-mvsx, [VSX_CFLAGS="-mvsx $VSX_CFLAGS"], [AC_MSG_ERROR([Need a version of gcc with -mvsx])]) fi ;; ibm) if test "$have_vsx" = "yes" -a "x$VSX_CFLAGS" = x; then # Note that IBM xlC uses -qaltivec for VSX too. AX_CHECK_COMPILER_FLAGS(-qaltivec, [VSX_CFLAGS="-qaltivec"], [AC_MSG_ERROR([Need a version of gcc with -qaltivec])]) fi ;; esac AC_SUBST(SSE2_CFLAGS) AC_SUBST(AVX_CFLAGS) AC_SUBST(AVX2_CFLAGS) AC_SUBST(AVX512_CFLAGS) AC_SUBST(KCVI_CFLAGS) AC_SUBST(ALTIVEC_CFLAGS) AC_SUBST(VSX_CFLAGS) AC_SUBST(NEON_CFLAGS) dnl add stack alignment CFLAGS if so requested if test "$with_incoming_stack_boundary"x != "no"x; then case "${ax_cv_c_compiler_vendor}" in gnu) tentative_flags="-mincoming-stack-boundary=$with_incoming_stack_boundary"; AX_CHECK_COMPILER_FLAGS($tentative_flags, [STACK_ALIGN_CFLAGS=$tentative_flags]) ;; esac fi AC_SUBST(STACK_ALIGN_CFLAGS) dnl Checks for header files. AC_HEADER_STDC AC_CHECK_HEADERS([fcntl.h fenv.h limits.h malloc.h stddef.h sys/time.h]) dnl c_asm.h: Header file for enabling asm() on Digital Unix dnl intrinsics.h: cray unicos dnl sys/sysctl.h: MacOS X altivec detection dnl altivec.h requires $ALTIVEC_CFLAGS (we use this for VSX too, which uses the same header) save_CFLAGS="$CFLAGS" save_CPPFLAGS="$CPPFLAGS" CFLAGS="$CFLAGS $ALTIVEC_CFLAGS $VSX_CFLAGS" CPPFLAGS="$CPPFLAGS $ALTIVEC_CFLAGS $VSX_CFLAGS" AC_CHECK_HEADERS([altivec.h]) CFLAGS="$save_CFLAGS" CPPFLAGS="$save_CPPFLAGS" dnl Checks for typedefs, structures, and compiler characteristics. AC_C_CONST AC_C_INLINE AC_TYPE_SIZE_T AC_TYPE_UINT32_T AC_TYPE_UINT64_T AC_HEADER_TIME AC_CHECK_TYPE([long double], [AC_DEFINE(HAVE_LONG_DOUBLE, 1, [Define to 1 if the compiler supports `long double'])], [ if test $PRECISION = l; then AC_MSG_ERROR([long double is not a supported type with your compiler.]) fi ]) AC_CHECK_TYPE([hrtime_t],[AC_DEFINE(HAVE_HRTIME_T, 1, [Define to 1 if hrtime_t is defined in ])],, [ #if HAVE_SYS_TIME_H #include #endif ]) AC_CHECK_SIZEOF(int) AC_CHECK_SIZEOF(unsigned int) AC_CHECK_SIZEOF(long) AC_CHECK_SIZEOF(unsigned long) AC_CHECK_SIZEOF(long long) AC_CHECK_SIZEOF(unsigned long long) AC_CHECK_SIZEOF(size_t) AC_CHECK_SIZEOF(ptrdiff_t) AC_CHECK_TYPES([ptrdiff_t]) AC_CHECK_TYPES(uintptr_t, [], [AC_CHECK_SIZEOF(void *)], [$ac_includes_default #ifdef HAVE_STDINT_H # include #endif]) AC_CHECK_SIZEOF(float) AC_CHECK_SIZEOF(double) dnl Check sizeof fftw_r2r_kind for Fortran interface [it has == sizeof(int) dnl for years, but being paranoid]. Note: the definition here must match dnl the one in api/fftw3.h! AC_CHECK_SIZEOF(fftw_r2r_kind, [], [typedef enum { FFTW_R2HC=0, FFTW_HC2R=1, FFTW_DHT=2, FFTW_REDFT00=3, FFTW_REDFT01=4, FFTW_REDFT10=5, FFTW_REDFT11=6, FFTW_RODFT00=7, FFTW_RODFT01=8, FFTW_RODFT10=9, FFTW_RODFT11=10 } fftw_r2r_kind;]) if test 0 = $ac_cv_sizeof_fftw_r2r_kind; then AC_MSG_ERROR([sizeof(fftw_r2r_kind) test failed]); fi C_FFTW_R2R_KIND=C_INT`expr $ac_cv_sizeof_fftw_r2r_kind \* 8`_T AC_SUBST(C_FFTW_R2R_KIND) dnl Checks for library functions. AC_FUNC_ALLOCA AC_FUNC_STRTOD AC_FUNC_VPRINTF AC_CHECK_LIB(m, sin) if test $PRECISION = q; then AX_GCC_VERSION(4,6,0,[],[AC_MSG_ERROR([gcc 4.6 or later required for quad precision support])]) AC_CHECK_LIB(quadmath, sinq, [], [AC_MSG_ERROR([quad precision requires libquadmath for quad-precision trigonometric routines])]) LIBQUADMATH=-lquadmath fi AC_SUBST(LIBQUADMATH) AC_CHECK_FUNCS([BSDgettimeofday gettimeofday gethrtime read_real_time time_base_to_time drand48 sqrt memset posix_memalign memalign _mm_malloc _mm_free clock_gettime mach_absolute_time sysctl abort sinl cosl snprintf memmove strchr getpagesize]) AC_CHECK_DECLS([sinl, cosl, sinq, cosq],,,[#include ]) AC_CHECK_DECLS([memalign],,,[ #ifdef HAVE_MALLOC_H #include #endif]) AC_CHECK_DECLS([drand48, srand48, posix_memalign]) dnl in stdlib.h dnl Cray UNICOS _rtc() (real-time clock) intrinsic AC_MSG_CHECKING([for _rtc intrinsic]) rtc_ok=yes AC_TRY_LINK([#ifdef HAVE_INTRINSICS_H #include #endif], [_rtc()], [AC_DEFINE(HAVE__RTC,1,[Define if you have the UNICOS _rtc() intrinsic.])], [rtc_ok=no]) AC_MSG_RESULT($rtc_ok) if test "$PRECISION" = "l"; then AC_CHECK_FUNCS([cosl sinl tanl], [], [AC_MSG_ERROR([long-double precision requires long-double trigonometric routines])]) fi AC_MSG_CHECKING([for isnan]) AC_TRY_LINK([#include ], if (!isnan(3.14159)) isnan(2.7183);, ok=yes, ok=no) if test "$ok" = "yes"; then AC_DEFINE(HAVE_ISNAN,1,[Define if the isnan() function/macro is available.]) fi AC_MSG_RESULT(${ok}) dnl TODO AX_GCC_ALIGNS_STACK() dnl override CFLAGS selection when debugging if test "${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_test_CFLAGS" != "set"; 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 fi dnl check for a proper indent in maintainer mode if test "$USE_MAINTAINER_MODE" = yes; then AC_PATH_PROG(INDENT, indent, indent) # if INDENT is set to 'indent' then we didn't find indent if test "$INDENT" != indent ; then AC_MSG_CHECKING(if $INDENT is GNU indent) if $INDENT --version 2>/dev/null | head -n 1|grep "GNU indent" > /dev/null ; then AC_MSG_RESULT(yes) INDENT="$INDENT -kr -cs -i5 -l800 -fca -nfc1 -sc -sob -cli4 -TR -Tplanner -TV" else AC_MSG_RESULT(no) AC_MSG_WARN($INDENT does not appear to be GNU indent.) fi else AC_MSG_WARN(no indent program found: codelets will be ugly) INDENT=cat fi fi dnl ----------------------------------------------------------------------- AC_ARG_ENABLE(fortran, [AC_HELP_STRING([--disable-fortran],[don't include Fortran-callable wrappers])], enable_fortran=$enableval, enable_fortran=yes) 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; using default Fortran wrappers.]) else AC_F77_DUMMY_MAIN([], [enable_fortran=no AC_MSG_WARN([*** Couldn't figure out how to link C and Fortran; using default Fortran wrappers.])]) fi else AC_DEFINE([DISABLE_FORTRAN], 1, [Define to disable Fortran wrappers.]) fi if test "x$enable_fortran" = xyes; then AC_F77_WRAPPERS AC_F77_FUNC(f77foo) AC_F77_FUNC(f77_foo) f77_foo2=`echo $f77foo | sed 's/77/77_/'` if test "$f77_foo" = "$f77_foo2"; then AC_DEFINE(F77_FUNC_EQUIV, 1, [Define if F77_FUNC and F77_FUNC_ are equivalent.]) # Include g77 wrappers by default for GNU systems or gfortran with_g77_wrappers=$ac_cv_f77_compiler_gnu case $host_os in *gnu*) with_g77_wrappers=yes ;; esac fi else with_g77_wrappers=no fi AC_ARG_WITH(g77-wrappers, [AC_HELP_STRING([--with-g77-wrappers],[force inclusion of g77-compatible wrappers in addition to any other Fortran compiler that is detected])], with_g77_wrappers=$withval) if test "x$with_g77_wrappers" = "xyes"; then AC_DEFINE(WITH_G77_WRAPPERS,1,[Include g77-compatible wrappers in addition to any other Fortran wrappers.]) fi dnl ----------------------------------------------------------------------- have_smp="no" AC_ARG_ENABLE(openmp, [AC_HELP_STRING([--enable-openmp],[use OpenMP directives for parallelism])], enable_openmp=$enableval, enable_openmp=no) if test "$enable_openmp" = "yes"; then AC_DEFINE(HAVE_OPENMP,1,[Define to enable OpenMP]) AX_OPENMP([], [AC_MSG_ERROR([don't know how to enable OpenMP])]) fi AC_ARG_ENABLE(threads, [AC_HELP_STRING([--enable-threads],[compile FFTW SMP threads library])], enable_threads=$enableval, enable_threads=no) if test "$enable_threads" = "yes"; then AC_DEFINE(HAVE_THREADS,1,[Define to enable SMP threads]) fi AC_ARG_WITH(combined-threads, [AC_HELP_STRING([--with-combined-threads],[combine threads into main libfftw3])], with_combined_threads=$withval, with_combined_threads=no) if test "$with_combined_threads" = yes; then if test "$enable_openmp" = "yes"; then AC_MSG_ERROR([--with-combined-threads incompatible with --enable-openmp]) fi if test "$enable_threads" != "yes"; then AC_MSG_ERROR([--with-combined-threads requires --enable-threads]) fi fi dnl Check for threads library... THREADLIBS="" if test "$enable_threads" = "yes"; then # Win32 threads are the default on Windows: if test -z "$THREADLIBS"; then AC_MSG_CHECKING([for Win32 threads]) AC_TRY_LINK([#include ], [_beginthreadex(0,0,0,0,0,0);], [THREADLIBS=" "; AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no)]) fi # POSIX threads, the default choice everywhere else: if test -z "$THREADLIBS"; then ACX_PTHREAD([THREADLIBS="$PTHREAD_LIBS " CC="$PTHREAD_CC" AC_DEFINE(USING_POSIX_THREADS, 1, [Define if we have and are using POSIX threads.])]) fi if test -z "$THREADLIBS"; then AC_MSG_ERROR([couldn't find threads library for --enable-threads]) fi AC_DEFINE(HAVE_THREADS, 1, [Define if we have a threads library.]) fi AC_SUBST(THREADLIBS) AM_CONDITIONAL(THREADS, test "$enable_threads" = "yes") AM_CONDITIONAL(OPENMP, test "$enable_openmp" = "yes") AM_CONDITIONAL(SMP, test "$enable_threads" = "yes" -o "$enable_openmp" = "yes") AM_CONDITIONAL(COMBINED_THREADS, test x"$with_combined_threads" = xyes) dnl ----------------------------------------------------------------------- AC_MSG_CHECKING([whether a cycle counter is available]) save_CPPFLAGS=$CPPFLAGS CPPFLAGS="$CPPFLAGS -I$srcdir/kernel" AC_TRY_CPP([#include "cycle.h" #ifndef HAVE_TICK_COUNTER # error No cycle counter #endif], [ok=yes], [ok=no]) CPPFLAGS=$save_CPPFLAGS AC_MSG_RESULT($ok) if test $ok = no && test "x$with_slow_timer" = xno; then echo "***************************************************************" echo "WARNING: No cycle counter found. FFTW will use ESTIMATE mode " echo " for all plans. See the manual for more information." echo "***************************************************************" fi dnl ----------------------------------------------------------------------- AC_DEFINE_UNQUOTED(FFTW_CC, "$CC $CFLAGS", [C compiler name and flags]) AC_CONFIG_FILES([ Makefile support/Makefile genfft/Makefile kernel/Makefile simd-support/Makefile dft/Makefile dft/scalar/Makefile dft/scalar/codelets/Makefile dft/simd/Makefile dft/simd/common/Makefile dft/simd/sse2/Makefile dft/simd/avx/Makefile dft/simd/avx-128-fma/Makefile dft/simd/avx2/Makefile dft/simd/avx2-128/Makefile dft/simd/avx512/Makefile dft/simd/kcvi/Makefile dft/simd/altivec/Makefile dft/simd/vsx/Makefile dft/simd/neon/Makefile dft/simd/generic-simd128/Makefile dft/simd/generic-simd256/Makefile rdft/Makefile rdft/scalar/Makefile rdft/scalar/r2cf/Makefile rdft/scalar/r2cb/Makefile rdft/scalar/r2r/Makefile rdft/simd/Makefile rdft/simd/common/Makefile rdft/simd/sse2/Makefile rdft/simd/avx/Makefile rdft/simd/avx-128-fma/Makefile rdft/simd/avx2/Makefile rdft/simd/avx2-128/Makefile rdft/simd/avx512/Makefile rdft/simd/kcvi/Makefile rdft/simd/altivec/Makefile rdft/simd/vsx/Makefile rdft/simd/neon/Makefile rdft/simd/generic-simd128/Makefile rdft/simd/generic-simd256/Makefile reodft/Makefile threads/Makefile api/Makefile mpi/Makefile libbench2/Makefile tests/Makefile doc/Makefile doc/FAQ/Makefile tools/Makefile tools/fftw_wisdom.1 tools/fftw-wisdom-to-conf m4/Makefile fftw.pc ]) AC_OUTPUT