# aclocal.m4 contains custom macros used for creating HMMER's # configuration script. # # SRE, Sun Apr 22 09:26:38 2007 [Janelia] # SVN $Id: aclocal.m4 896 2013-12-17 21:07:37Z wheelert $ ################################################################# # Macro: CHECK_GNU_MAKE # Usage: CHECK_GNU_MAKE # Author: John Darrington # Modified from the original. # # Sets the format of makefile dependency lines for executables. # # We need this because GNU make and SYSV make use different systems # specifying variables for dependencies: $$@ in sysv, %: %.o in GNU. # Would love to hear a better way of doing this. # # I use two different conventions in my Makefiles. Sometimes # executable "foo" has a file "foo.c" - this is the HMMER, Easel, Infernal convention. # Sometimes executable "foo" has a file "foo_main.c" - this is # the SQUID convention. The configure script sets the # EXEC_DEPENDENCY appropriately: here, HMMER style. # # Sets an output variable EXEC_DEPENDENCY. # This is used in the src/Makefile.in. # AC_DEFUN(CHECK_GNU_MAKE,[ AC_MSG_CHECKING(whether you have a GNU make) foundGNUmake='nope, so we assume you will use a sysv-compatible make.' ; EXEC_DEPENDENCY=[\$\$\@.o] ; for a in "$MAKE" make gmake gnumake ; do if test -z "$a" ; then continue ; fi ; if ( sh -c "$a --version" 2> /dev/null | grep GNU 2>&1 > /dev/null ) ; then foundGNUmake='yes, you do; and we assume you will use it!' ; EXEC_DEPENDENCY='%: %.o' ; fi done AC_MSG_RESULT($foundGNUmake) AC_SUBST(EXEC_DEPENDENCY) ]) ################################################################ # Macro: ACX_MPI # Usage: ACX_MPI([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]]) # Authors: Steven G. Johnson and Julian C. Cummings # Version: 2006-10-22 # Unmodified from the original; can be replaced with new version. # # xref http://autoconf-archive.cryp.to/acx_mpi.html # Sets MPICC, MPILIBS output variable. # If ACTION-IF-FOUND is not specified, default action defines HAVE_MPI. # AC_DEFUN([ACX_MPI], [ AC_PREREQ(2.50) dnl for AC_LANG_CASE AC_LANG_CASE([C], [ AC_REQUIRE([AC_PROG_CC]) AC_ARG_VAR(MPICC,[MPI C compiler command]) AC_CHECK_PROGS(MPICC, mpicc hcc mpxlc_r mpxlc mpcc cmpicc, $CC) acx_mpi_save_CC="$CC" CC="$MPICC" AC_SUBST(MPICC) ], [C++], [ AC_REQUIRE([AC_PROG_CXX]) AC_ARG_VAR(MPICXX,[MPI C++ compiler command]) AC_CHECK_PROGS(MPICXX, mpic++ mpicxx mpiCC hcp mpxlC_r mpxlC mpCC cmpic++, $CXX) acx_mpi_save_CXX="$CXX" CXX="$MPICXX" AC_SUBST(MPICXX) ], [Fortran 77], [ AC_REQUIRE([AC_PROG_F77]) AC_ARG_VAR(MPIF77,[MPI Fortran 77 compiler command]) AC_CHECK_PROGS(MPIF77, mpif77 hf77 mpxlf_r mpxlf mpf77 cmpifc, $F77) acx_mpi_save_F77="$F77" F77="$MPIF77" AC_SUBST(MPIF77) ], [Fortran], [ AC_REQUIRE([AC_PROG_FC]) AC_ARG_VAR(MPIFC,[MPI Fortran compiler command]) AC_CHECK_PROGS(MPIFC, mpif90 mpxlf95_r mpxlf90_r mpxlf95 mpxlf90 mpf90 cmpif90c, $FC) acx_mpi_save_FC="$FC" FC="$MPIFC" AC_SUBST(MPIFC) ]) if test x = x"$MPILIBS"; then AC_LANG_CASE([C], [AC_CHECK_FUNC(MPI_Init, [MPILIBS=" "])], [C++], [AC_CHECK_FUNC(MPI_Init, [MPILIBS=" "])], [Fortran 77], [AC_MSG_CHECKING([for MPI_Init]) AC_LINK_IFELSE([AC_LANG_PROGRAM([],[ call MPI_Init])],[MPILIBS=" " AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no)])], [Fortran], [AC_MSG_CHECKING([for MPI_Init]) AC_LINK_IFELSE([AC_LANG_PROGRAM([],[ call MPI_Init])],[MPILIBS=" " AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no)])]) fi AC_LANG_CASE([Fortran 77], [ if test x = x"$MPILIBS"; then AC_CHECK_LIB(fmpi, MPI_Init, [MPILIBS="-lfmpi"]) fi if test x = x"$MPILIBS"; then AC_CHECK_LIB(fmpich, MPI_Init, [MPILIBS="-lfmpich"]) fi ], [Fortran], [ if test x = x"$MPILIBS"; then AC_CHECK_LIB(fmpi, MPI_Init, [MPILIBS="-lfmpi"]) fi if test x = x"$MPILIBS"; then AC_CHECK_LIB(mpichf90, MPI_Init, [MPILIBS="-lmpichf90"]) fi ]) if test x = x"$MPILIBS"; then AC_CHECK_LIB(mpi, MPI_Init, [MPILIBS="-lmpi"]) fi if test x = x"$MPILIBS"; then AC_CHECK_LIB(mpich, MPI_Init, [MPILIBS="-lmpich"]) fi dnl We have to use AC_TRY_COMPILE and not AC_CHECK_HEADER because the dnl latter uses $CPP, not $CC (which may be mpicc). AC_LANG_CASE([C], [if test x != x"$MPILIBS"; then AC_MSG_CHECKING([for mpi.h]) AC_TRY_COMPILE([#include ],[],[AC_MSG_RESULT(yes)], [MPILIBS="" AC_MSG_RESULT(no)]) fi], [C++], [if test x != x"$MPILIBS"; then AC_MSG_CHECKING([for mpi.h]) AC_TRY_COMPILE([#include ],[],[AC_MSG_RESULT(yes)], [MPILIBS="" AC_MSG_RESULT(no)]) fi], [Fortran 77], [if test x != x"$MPILIBS"; then AC_MSG_CHECKING([for mpif.h]) AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[ include 'mpif.h'])],[AC_MSG_RESULT(yes)], [MPILIBS="" AC_MSG_RESULT(no)]) fi], [Fortran], [if test x != x"$MPILIBS"; then AC_MSG_CHECKING([for mpif.h]) AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[ include 'mpif.h'])],[AC_MSG_RESULT(yes)], [MPILIBS="" AC_MSG_RESULT(no)]) fi]) AC_LANG_CASE([C], [CC="$acx_mpi_save_CC"], [C++], [CXX="$acx_mpi_save_CXX"], [Fortran 77], [F77="$acx_mpi_save_F77"], [Fortran], [FC="$acx_mpi_save_FC"]) AC_SUBST(MPILIBS) # Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND: if test x = x"$MPILIBS"; then $2 : else ifelse([$1],,[AC_DEFINE(HAVE_MPI,1,[Define if you have the MPI library.])],[$1]) : fi ])dnl ACX_MPI ################################################################# # Macro: ACX_PTHREAD # Usage: ACX_PTHREAD([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]]) # Authors: Steven G. Johnson # Alejandro Forero Cuervo # Version: 1.9 (2004/02/23) # Source: http://www.gnu.org/software/ac-archive/htmldoc/acx_pthread.html # # SRE: I have modified this source; search for SRE to see where. # Solaris needs -D_POSIX_PTHREAD_SEMANTICS or ctime_r() calls will choke. # dnl Available from the GNU Autoconf Macro Archive at: dnl http://www.gnu.org/software/ac-archive/htmldoc/acx_pthread.html dnl AC_DEFUN([ACX_PTHREAD], [ AC_REQUIRE([AC_CANONICAL_HOST]) AC_LANG_SAVE AC_LANG_C acx_pthread_ok=no # We used to check for pthread.h first, but this fails if pthread.h # requires special compiler flags (e.g. on True64 or Sequent). # It gets checked for in the link test anyway. # First of all, check if the user has set any of the PTHREAD_LIBS, # etcetera environment variables, and if threads linking works using # them: if test x"$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="$save_CFLAGS" fi # We must check for the threads library under a number of different # names; the ordering is very important because some systems # (e.g. DEC) have both -lpthread and -lpthreads, where one of the # libraries is broken (non-POSIX). # Create a list of thread flags to try. Items starting with a "-" are # C compiler flags, and other items are library names, except for "none" # which indicates that we try without any flags at all, and "pthread-config" # which is a program returning the flags for the Pth emulation library. acx_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config" # The ordering *is* (sometimes) important. Some notes on the # individual items follow: # pthreads: AIX (must check this before -lpthread) # none: in case threads are in libc; should be tried before -Kthread and # other compiler flags to prevent continual compiler warnings # -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h) # -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able) # lthread: LinuxThreads port on FreeBSD (also preferred to -pthread) # -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads) # -pthreads: Solaris/gcc # -mthreads: Mingw32/gcc, Lynx/gcc # -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it # doesn't hurt to check since this sometimes defines pthreads too; # also defines -D_REENTRANT) # pthread: Linux, etcetera # --thread-safe: KAI C++ # pthread-config: use pthread-config program (for GNU Pth library) case "${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 -pthread or # -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="-pthread -pthreads pthread -mt $acx_pthread_flags" ;; esac if test x"$acx_pthread_ok" = xno; then for 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 $PTHREAD_CFLAGS" # Check for various functions. We must include pthread.h, # since some functions may be macros. (On the Sequent, we # need a special flag -Kthread to make this header compile.) # We check for pthread_join because it is in -lpthread on IRIX # while pthread_create is in libc. We check for pthread_attr_init # due to DEC craziness with -lpthreads. We check for # pthread_cleanup_push because it is one of the few pthread # functions on Solaris that doesn't have a non-functional libc stub. # We try pthread_create on general principles. AC_TRY_LINK([#include ], [pthread_t th; pthread_join(th, 0); pthread_attr_init(0); pthread_cleanup_push(0, 0); pthread_create(0,0,0,0); pthread_cleanup_pop(0); ], [acx_pthread_ok=yes]) LIBS="$save_LIBS" CFLAGS="$save_CFLAGS" AC_MSG_RESULT($acx_pthread_ok) if test "x$acx_pthread_ok" = xyes; then break; fi PTHREAD_LIBS="" PTHREAD_CFLAGS="" done fi # Various other checks: if test "x$acx_pthread_ok" = xyes; then save_LIBS="$LIBS" LIBS="$PTHREAD_LIBS $LIBS" save_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS $PTHREAD_CFLAGS" # Detect AIX lossage: threads are created detached by default # and the JOINABLE attribute has a nonstandard name (UNDETACHED). AC_MSG_CHECKING([for joinable pthread attribute]) AC_TRY_LINK([#include ], [int attr=PTHREAD_CREATE_JOINABLE;], ok=PTHREAD_CREATE_JOINABLE, ok=unknown) if test x"$ok" = xunknown; then AC_TRY_LINK([#include ], [int attr=PTHREAD_CREATE_UNDETACHED;], ok=PTHREAD_CREATE_UNDETACHED, ok=unknown) fi if test x"$ok" != xPTHREAD_CREATE_JOINABLE; then AC_DEFINE(PTHREAD_CREATE_JOINABLE, $ok, [Define to the necessary symbol if this constant uses a non-standard name on your system.]) fi AC_MSG_RESULT(${ok}) if test x"$ok" = xunknown; then AC_MSG_WARN([we do not know how to create joinable pthreads]) fi AC_MSG_CHECKING([if more special flags are required for pthreads]) flag=no # Added _POSIX_PTHREAD_SEMANTICS for solaris. Needed for ctime_r() compliance. # SRE, Fri Oct 29 10:03:36 2010 [J7/3] case "${host_cpu}-${host_os}" in *-aix* | *-freebsd*) flag="-D_THREAD_SAFE";; *solaris*) flag="-D_REENTRANT -D_POSIX_PTHREAD_SEMANTICS";; *-osf* | *-hpux*) flag="-D_REENTRANT";; esac AC_MSG_RESULT(${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 cc_r AC_CHECK_PROG(PTHREAD_CC, cc_r, cc_r, ${CC}) else PTHREAD_CC="$CC" fi AC_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 $2 fi AC_LANG_RESTORE ])dnl ACX_PTHREAD # # ACX_PTHREAD macro end. # **************************************************************** # **************************************************************** ################################################################# # Macro: AX_CHECK_COMPILER_FLAGS # Usage: AX_CHECK_COMPILER_FLAGS(FLAGS, [ACTION-SUCCESS], [ACTION-FAILURE]) # Authors: Copyright (C) 2007 Steven G. Johnson # Copyright (C) 2007 Matteo Frigo. # Version: 2007-07-29 # Source: http://autoconf-archive.cryp.to/ax_check_compiler_flags.html # # Check whether the given compiler FLAGS work with the current language's compiler, # or whether they give an error. (Warnings, however, are ignored.) # ACTION-SUCCESS/ACTION-FAILURE are shell commands to execute on success/failure. # # Everything below is verbatim from the archive. DO NOT MODIFY IT. # AC_DEFUN([AX_CHECK_COMPILER_FLAGS], [AC_PREREQ(2.59) dnl for _AC_LANG_PREFIX AC_MSG_CHECKING([whether _AC_LANG compiler accepts $1]) dnl Some hackery here since AC_CACHE_VAL can't handle a non-literal varname: AS_LITERAL_IF([$1], [AC_CACHE_VAL(AS_TR_SH(ax_cv_[]_AC_LANG_ABBREV[]_flags_$1), [ ax_save_FLAGS=$[]_AC_LANG_PREFIX[]FLAGS _AC_LANG_PREFIX[]FLAGS="$1" AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], AS_TR_SH(ax_cv_[]_AC_LANG_ABBREV[]_flags_$1)=yes, AS_TR_SH(ax_cv_[]_AC_LANG_ABBREV[]_flags_$1)=no) _AC_LANG_PREFIX[]FLAGS=$ax_save_FLAGS])], [ax_save_FLAGS=$[]_AC_LANG_PREFIX[]FLAGS _AC_LANG_PREFIX[]FLAGS="$1" AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], eval AS_TR_SH(ax_cv_[]_AC_LANG_ABBREV[]_flags_$1)=yes, eval AS_TR_SH(ax_cv_[]_AC_LANG_ABBREV[]_flags_$1)=no) _AC_LANG_PREFIX[]FLAGS=$ax_save_FLAGS]) eval ax_check_compiler_flags=$AS_TR_SH(ax_cv_[]_AC_LANG_ABBREV[]_flags_$1) AC_MSG_RESULT($ax_check_compiler_flags) if test "x$ax_check_compiler_flags" = xyes; then m4_default([$2], :) else m4_default([$3], :) fi ])dnl AX_CHECK_COMPILER_FLAGS # # AX_CHECK_COMPILER_FLAGS macro end. # **************************************************************** # **************************************************************** ################################################################# # Macro: AX_GCC_X86_CPUID # Usage: AX_GCC_X86_CPUID(OP) # Authors: Copyright (c) 2008 Steven G. Johnson # Copyright (c) 2008 Matteo Frigo # Version: 2010-03-01 # Source: http://www.gnu.org/software/autoconf-archive/ax_gcc_x86_cpuid.html # # On Pentium and later x86 processors, with gcc or a compiler that has a # compatible syntax for inline assembly instructions, run a small program # that executes the cpuid instruction with input OP. This can be used to # detect the CPU type. # # On output, the values of the eax, ebx, ecx, and edx registers are stored # as hexadecimal strings as "eax:ebx:ecx:edx" in the cache variable # ax_cv_gcc_x86_cpuid_OP. # # If the cpuid instruction fails (because you are running a # cross-compiler, or because you are not using gcc, or because you are on # a processor that doesn't have this instruction), ax_cv_gcc_x86_cpuid_OP # is set to the string "unknown". # # This macro mainly exists to be used in AX_GCC_ARCHFLAG. # # Everything below is verbatim from the archive. DO NOT MODIFY IT. # AC_DEFUN([AX_GCC_X86_CPUID], [AC_REQUIRE([AC_PROG_CC]) AC_LANG_PUSH([C]) AC_CACHE_CHECK(for x86 cpuid $1 output, ax_cv_gcc_x86_cpuid_$1, [AC_RUN_IFELSE([AC_LANG_PROGRAM([#include ], [ int op = $1, eax, ebx, ecx, edx; FILE *f; __asm__("cpuid" : "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx) : "a" (op)); f = fopen("conftest_cpuid", "w"); if (!f) return 1; fprintf(f, "%x:%x:%x:%x\n", eax, ebx, ecx, edx); fclose(f); return 0; ])], [ax_cv_gcc_x86_cpuid_$1=`cat conftest_cpuid`; rm -f conftest_cpuid], [ax_cv_gcc_x86_cpuid_$1=unknown; rm -f conftest_cpuid], [ax_cv_gcc_x86_cpuid_$1=unknown])]) AC_LANG_POP([C]) ]) # # AX_GCC_X86_CPUID macro end. # **************************************************************** # **************************************************************** ################################################################# # Macro: AX_COMPILER_VENDOR # Usage: AX_COMPILER_VENDOR # Authors: Copyright (C) 2007 Steven G. Johnson # Copyright (C) 2007 Matteo Frigo # Version: 2007-08-01 # Source: http://autoconf-archive.cryp.to/ax_compiler_vendor.html # # Sets $ax_cv_c_compiler_vendor to gnu, intel, ibm, sun, hp, borland, # comeau, dec, cray, kai, lcc, metrowerks, sgi, microsoft, watcom, etc. # # Everything below is verbatim from the archive. DO NOT MODIFY IT. AC_DEFUN([AX_COMPILER_VENDOR], [ AC_CACHE_CHECK([for _AC_LANG compiler vendor], ax_cv_[]_AC_LANG_ABBREV[]_compiler_vendor, [ax_cv_[]_AC_LANG_ABBREV[]_compiler_vendor=unknown # note: don't check for gcc first since some other compilers define __GNUC__ for ventest in intel:__ICC,__ECC,__INTEL_COMPILER ibm:__xlc__,__xlC__,__IBMC__,__IBMCPP__ pathscale:__PATHCC__,__PATHSCALE__ gnu:__GNUC__ sun:__SUNPRO_C,__SUNPRO_CC hp:__HP_cc,__HP_aCC dec:__DECC,__DECCXX,__DECC_VER,__DECCXX_VER borland:__BORLANDC__,__TURBOC__ comeau:__COMO__ cray:_CRAYC kai:__KCC lcc:__LCC__ metrowerks:__MWERKS__ sgi:__sgi,sgi microsoft:_MSC_VER watcom:__WATCOMC__ portland:__PGI; do vencpp="defined("`echo $ventest | cut -d: -f2 | sed 's/,/) || defined(/g'`")" AC_COMPILE_IFELSE([AC_LANG_PROGRAM(,[ #if !($vencpp) thisisanerror; #endif ])], [ax_cv_]_AC_LANG_ABBREV[_compiler_vendor=`echo $ventest | cut -d: -f1`; break]) done ]) ]) # # AX_COMPILER_VENDOR macro end. # **************************************************************** # **************************************************************** ################################################################# # Macro: AX_CHECK_PREPROC_FLAG # Usage: AX_CHECK_PREPROC_FLAG(FLAG, [ACTION-SUCCESS], [ACTION-FAILURE], [EXTRA-FLAGS], [INPUT]) # Authors: Copyright (c) 2008 Guido U. Draheim # Copyright (c) 2011 Maarten Bosmans # # Version: 2013-12-11 # Source: http://www.gnu.org/software/autoconf-archive/ax_check_preproc_flag.html # # Check whether the given FLAG works with the current language's # preprocessor or gives an error. (Warnings, however, are ignored) # # ACTION-SUCCESS/ACTION-FAILURE are shell commands to execute on # success/failure. # # If EXTRA-FLAGS is defined, it is added to the preprocessor's default # flags when the check is done. The check is thus made with the flags: # "CPPFLAGS EXTRA-FLAGS FLAG". This can for example be used to force the # preprocessor to issue an error when a bad flag is given. # # INPUT gives an alternative input source to AC_PREPROC_IFELSE. # # NOTE: Implementation based on AX_CFLAGS_GCC_OPTION. Please keep this # macro in sync with AX_CHECK_{COMPILE,LINK}_FLAG. # # Everything below is verbatim from the archive. DO NOT MODIFY IT. # AC_DEFUN([AX_CHECK_PREPROC_FLAG], [AC_PREREQ(2.59)dnl for _AC_LANG_PREFIX AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_[]_AC_LANG_ABBREV[]cppflags_$4_$1])dnl AC_CACHE_CHECK([whether _AC_LANG preprocessor accepts $1], CACHEVAR, [ ax_check_save_flags=$CPPFLAGS CPPFLAGS="$CPPFLAGS $4 $1" AC_PREPROC_IFELSE([m4_default([$5],[AC_LANG_PROGRAM()])], [AS_VAR_SET(CACHEVAR,[yes])], [AS_VAR_SET(CACHEVAR,[no])]) CPPFLAGS=$ax_check_save_flags]) AS_IF([test x"AS_VAR_GET(CACHEVAR)" = xyes], [m4_default([$2], :)], [m4_default([$3], :)]) AS_VAR_POPDEF([CACHEVAR])dnl ])dnl AX_CHECK_PREPROC_FLAGS # # AX_CHECK_PREPROC_FLAG macro end. # **************************************************************** # **************************************************************** ################################################################# # Macro: AX_CHECK_LINK_FLAG # Usage: AX_CHECK_LINK_FLAG(FLAG, [ACTION-SUCCESS], [ACTION-FAILURE], [EXTRA-FLAGS], [INPUT]) # Authors: Copyright (c) 2008 Guido U. Draheim # Copyright (c) 2011 Maarten Bosmans # # Version: 2013-12-11 # Source: http://www.gnu.org/software/autoconf-archive/ax_check_link_flag.html # # Check whether the given FLAG works with the linker or gives an error. # (Warnings, however, are ignored) # # ACTION-SUCCESS/ACTION-FAILURE are shell commands to execute on # success/failure. # # If EXTRA-FLAGS is defined, it is added to the linker's default flags # when the check is done. The check is thus made with the flags: "LDFLAGS # EXTRA-FLAGS FLAG". This can for example be used to force the linker to # issue an error when a bad flag is given. # # INPUT gives an alternative input source to AC_LINK_IFELSE. # # NOTE: Implementation based on AX_CFLAGS_GCC_OPTION. Please keep this # macro in sync with AX_CHECK_{PREPROC,COMPILE}_FLAG. # # Everything below is verbatim from the archive. DO NOT MODIFY IT. # AC_DEFUN([AX_CHECK_LINK_FLAG], [AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_ldflags_$4_$1])dnl AC_CACHE_CHECK([whether the linker accepts $1], CACHEVAR, [ ax_check_save_flags=$LDFLAGS LDFLAGS="$LDFLAGS $4 $1" AC_LINK_IFELSE([m4_default([$5],[AC_LANG_PROGRAM()])], [AS_VAR_SET(CACHEVAR,[yes])], [AS_VAR_SET(CACHEVAR,[no])]) LDFLAGS=$ax_check_save_flags]) AS_IF([test x"AS_VAR_GET(CACHEVAR)" = xyes], [m4_default([$2], :)], [m4_default([$3], :)]) AS_VAR_POPDEF([CACHEVAR])dnl ])dnl AX_CHECK_LINK_FLAGS # # AX_CHECK_LINK_FLAG macro end. # **************************************************************** # **************************************************************** ################################################################# # Macro: AX_CHECK_COMPILE_FLAG # Usage: AX_CHECK_COMPILE_FLAG(FLAG, [ACTION-SUCCESS], [ACTION-FAILURE], [EXTRA-FLAGS], [INPUT]) # Authors: Copyright (c) 2008 Guido U. Draheim # Copyright (c) 2011 Maarten Bosmans # # Version: 2013-12-11 # Source: http://www.gnu.org/software/autoconf-archive/ax_check_compile_flag.html # # Check whether the given FLAG works with the current language's compiler # or gives an error. (Warnings, however, are ignored) # # ACTION-SUCCESS/ACTION-FAILURE are shell commands to execute on # success/failure. # # If EXTRA-FLAGS is defined, it is added to the current language's default # flags (e.g. CFLAGS) when the check is done. The check is thus made with # the flags: "CFLAGS EXTRA-FLAGS FLAG". This can for example be used to # force the compiler to issue an error when a bad flag is given. # # INPUT gives an alternative input source to AC_COMPILE_IFELSE. # # NOTE: Implementation based on AX_CFLAGS_GCC_OPTION. Please keep this # macro in sync with AX_CHECK_{PREPROC,LINK}_FLAG. # # Everything below is verbatim from the archive. DO NOT MODIFY IT. # AC_DEFUN([AX_CHECK_COMPILE_FLAG], [AC_PREREQ(2.59)dnl for _AC_LANG_PREFIX AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_[]_AC_LANG_ABBREV[]flags_$4_$1])dnl AC_CACHE_CHECK([whether _AC_LANG compiler accepts $1], CACHEVAR, [ ax_check_save_flags=$[]_AC_LANG_PREFIX[]FLAGS _AC_LANG_PREFIX[]FLAGS="$[]_AC_LANG_PREFIX[]FLAGS $4 $1" AC_COMPILE_IFELSE([m4_default([$5],[AC_LANG_PROGRAM()])], [AS_VAR_SET(CACHEVAR,[yes])], [AS_VAR_SET(CACHEVAR,[no])]) _AC_LANG_PREFIX[]FLAGS=$ax_check_save_flags]) AS_IF([test x"AS_VAR_GET(CACHEVAR)" = xyes], [m4_default([$2], :)], [m4_default([$3], :)]) AS_VAR_POPDEF([CACHEVAR])dnl ])dnl AX_CHECK_COMPILE_FLAGS # # AX_CHECK_COMPILE_FLAG macro end. # **************************************************************** # **************************************************************** ################################################################# # Macro: AX_GCC_ARCHFLAG # Usage: AX_GCC_ARCHFLAG([PORTABLE?], [ACTION-SUCCESS], [ACTION-FAILURE]) # Authors: Copyright (C) 2007 Steven G. Johnson # Copyright (C) 2007 Matteo Frigo # Version: 2013-12-11 # Source: http://autoconf-archive.cryp.to/ax_gcc_archflag.html # # This macro tries to guess the "native" arch corresponding to the target # architecture for use with gcc's -march=arch or -mtune=arch flags. If # found, the cache variable $ax_cv_gcc_archflag is set to this flag and # ACTION-SUCCESS is executed; otherwise $ax_cv_gcc_archflag is set to # "unknown" and ACTION-FAILURE is executed. The default ACTION-SUCCESS is # to add $ax_cv_gcc_archflag to the end of $CFLAGS. # # PORTABLE? should be either [yes] (default) or [no]. In the former case, # the flag is set to -mtune (or equivalent) so that the architecture is # only used for tuning, but the instruction set used is still portable. In # the latter case, the flag is set to -march (or equivalent) so that # architecture-specific instructions are enabled. # # The user can specify --with-gcc-arch= in order to override the # macro's choice of architecture, or --without-gcc-arch to disable this. # # When cross-compiling, or if $CC is not gcc, then ACTION-FAILURE is # called unless the user specified --with-gcc-arch manually. # # Requires macros: AX_CHECK_COMPILE_FLAG, AX_GCC_X86_CPUID # # (The main emphasis here is on recent CPUs, on the principle that doing # high-performance computing on old hardware is uncommon.) # # Everything below is verbatim from the archive. DO NOT MODIFY IT. # AC_DEFUN([AX_GCC_ARCHFLAG], [AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([AC_CANONICAL_HOST]) AC_REQUIRE([AC_PROG_SED]) AC_ARG_WITH(gcc-arch, [AS_HELP_STRING([--with-gcc-arch=], [use architecture for gcc -march/-mtune, instead of guessing])], ax_gcc_arch=$withval, ax_gcc_arch=yes) AC_MSG_CHECKING([for gcc architecture flag]) AC_MSG_RESULT([]) AC_CACHE_VAL(ax_cv_gcc_archflag, [ ax_cv_gcc_archflag="unknown" if test "$GCC" = yes; then if test "x$ax_gcc_arch" = xyes; then ax_gcc_arch="" if test "$cross_compiling" = no; then case $host_cpu in i[[3456]]86*|x86_64*|amd64*) # use cpuid codes AX_GCC_X86_CPUID(0) AX_GCC_X86_CPUID(1) case $ax_cv_gcc_x86_cpuid_0 in *:756e6547:*:*) # Intel case $ax_cv_gcc_x86_cpuid_1 in *5[[48]]?:*:*:*) ax_gcc_arch="pentium-mmx pentium" ;; *5??:*:*:*) ax_gcc_arch=pentium ;; *1?6[[7d]]?:*:*:*) ax_gcc_arch="penryn core2 pentium-m pentium3 pentiumpro" ;; *1?6[[aef]]?:*:*:*|*2?6[[5cef]]?:*:*:*) ax_gcc_arch="corei7 core2 pentium-m pentium3 pentiumpro" ;; *1?6c?:*:*:*|*[[23]]?66?:*:*:*) ax_gcc_arch="atom core2 pentium-m pentium3 pentiumpro" ;; *2?6[[ad]]?:*:*:*) ax_gcc_arch="corei7-avx corei7 core2 pentium-m pentium3 pentiumpro" ;; *[[1-9a-f]]?6??:*:*:*) ax_gcc_arch="core2 pentiumpro" ;; *6[[3456]]?:*:*:*) ax_gcc_arch="pentium2 pentiumpro" ;; *6a?:*[[01]]:*:*) ax_gcc_arch="pentium2 pentiumpro" ;; *6a?:*[[234]]:*:*) ax_gcc_arch="pentium3 pentiumpro" ;; *6[[9de]]?:*:*:*) ax_gcc_arch="pentium-m pentium3 pentiumpro" ;; *6[[78b]]?:*:*:*) ax_gcc_arch="pentium3 pentiumpro" ;; *6f?:*:*:*) ax_gcc_arch="core2 pentium-m pentium3 pentiumpro" ;; *6??:*:*:*) ax_gcc_arch=pentiumpro ;; *f3[[347]]:*:*:*|*f4[1347]:*:*:*|*f6?:*:*:*) case $host_cpu in x86_64*) ax_gcc_arch="nocona pentium4 pentiumpro" ;; *) ax_gcc_arch="prescott pentium4 pentiumpro" ;; esac ;; *f??:*:*:*) ax_gcc_arch="pentium4 pentiumpro";; esac ;; *:68747541:*:*) # AMD case $ax_cv_gcc_x86_cpuid_1 in *5[[67]]?:*:*:*) ax_gcc_arch=k6 ;; *5[[8d]]?:*:*:*) ax_gcc_arch="k6-2 k6" ;; *5[[9]]?:*:*:*) ax_gcc_arch="k6-3 k6" ;; *60?:*:*:*) ax_gcc_arch=k7 ;; *6[[12]]?:*:*:*) ax_gcc_arch="athlon k7" ;; *6[[34]]?:*:*:*) ax_gcc_arch="athlon-tbird k7" ;; *67?:*:*:*) ax_gcc_arch="athlon-4 athlon k7" ;; *6[[68a]]?:*:*:*) AX_GCC_X86_CPUID(0x80000006) # L2 cache size case $ax_cv_gcc_x86_cpuid_0x80000006 in *:*:*[[1-9a-f]]??????:*) # (L2 = ecx >> 16) >= 256 ax_gcc_arch="athlon-xp athlon-4 athlon k7" ;; *) ax_gcc_arch="athlon-4 athlon k7" ;; esac ;; *5??f??:*:*:*) ax_gcc_arch="btver1 amdfam10 k8" ;; *6??f??:*:*:*) ax_gcc_arch="bdver1 amdfam10 k8" ;; *[[1-9a-f]]??f??:*:*:*) ax_gcc_arch="amdfam10 k8" ;; *f[[4cef8b]]?:*:*:*) ax_gcc_arch="athlon64 k8" ;; *f5?:*:*:*) ax_gcc_arch="opteron k8" ;; *f7?:*:*:*) ax_gcc_arch="athlon-fx opteron k8" ;; *f??:*:*:*) ax_gcc_arch="k8" ;; esac ;; *:746e6543:*:*) # IDT case $ax_cv_gcc_x86_cpuid_1 in *54?:*:*:*) ax_gcc_arch=winchip-c6 ;; *58?:*:*:*) ax_gcc_arch=winchip2 ;; *6[[78]]?:*:*:*) ax_gcc_arch=c3 ;; *69?:*:*:*) ax_gcc_arch="c3-2 c3" ;; esac ;; esac if test x"$ax_gcc_arch" = x; then # fallback case $host_cpu in i586*) ax_gcc_arch=pentium ;; i686*) ax_gcc_arch=pentiumpro ;; esac fi ;; sparc*) AC_PATH_PROG([PRTDIAG], [prtdiag], [prtdiag], [$PATH:/usr/platform/`uname -i`/sbin/:/usr/platform/`uname -m`/sbin/]) cputype=`(((grep cpu /proc/cpuinfo | cut -d: -f2) ; ($PRTDIAG -v |grep -i sparc) ; grep -i cpu /var/run/dmesg.boot ) | head -n 1) 2> /dev/null` cputype=`echo "$cputype" | tr -d ' -' | $SED 's/SPARCIIi/SPARCII/' |tr $as_cr_LETTERS $as_cr_letters` case $cputype in *ultrasparciv*) ax_gcc_arch="ultrasparc4 ultrasparc3 ultrasparc v9" ;; *ultrasparciii*) ax_gcc_arch="ultrasparc3 ultrasparc v9" ;; *ultrasparc*) ax_gcc_arch="ultrasparc v9" ;; *supersparc*|*tms390z5[[05]]*) ax_gcc_arch="supersparc v8" ;; *hypersparc*|*rt62[[056]]*) ax_gcc_arch="hypersparc v8" ;; *cypress*) ax_gcc_arch=cypress ;; esac ;; alphaev5) ax_gcc_arch=ev5 ;; alphaev56) ax_gcc_arch=ev56 ;; alphapca56) ax_gcc_arch="pca56 ev56" ;; alphapca57) ax_gcc_arch="pca57 pca56 ev56" ;; alphaev6) ax_gcc_arch=ev6 ;; alphaev67) ax_gcc_arch=ev67 ;; alphaev68) ax_gcc_arch="ev68 ev67" ;; alphaev69) ax_gcc_arch="ev69 ev68 ev67" ;; alphaev7) ax_gcc_arch="ev7 ev69 ev68 ev67" ;; alphaev79) ax_gcc_arch="ev79 ev7 ev69 ev68 ev67" ;; powerpc*) cputype=`((grep cpu /proc/cpuinfo | head -n 1 | cut -d: -f2 | cut -d, -f1 | $SED 's/ //g') ; /usr/bin/machine ; /bin/machine; grep CPU /var/run/dmesg.boot | head -n 1 | cut -d" " -f2) 2> /dev/null` cputype=`echo $cputype | $SED -e 's/ppc//g;s/ *//g'` case $cputype in *750*) ax_gcc_arch="750 G3" ;; *740[[0-9]]*) ax_gcc_arch="$cputype 7400 G4" ;; *74[[4-5]][[0-9]]*) ax_gcc_arch="$cputype 7450 G4" ;; *74[[0-9]][[0-9]]*) ax_gcc_arch="$cputype G4" ;; *970*) ax_gcc_arch="970 G5 power4";; *POWER4*|*power4*|*gq*) ax_gcc_arch="power4 970";; *POWER5*|*power5*|*gr*|*gs*) ax_gcc_arch="power5 power4 970";; 603ev|8240) ax_gcc_arch="$cputype 603e 603";; *) ax_gcc_arch=$cputype ;; esac ax_gcc_arch="$ax_gcc_arch powerpc" ;; esac fi # not cross-compiling fi # guess arch if test "x$ax_gcc_arch" != x -a "x$ax_gcc_arch" != xno; then for arch in $ax_gcc_arch; do if test "x[]m4_default([$1],yes)" = xyes; then # if we require portable code flags="-mtune=$arch" # -mcpu=$arch and m$arch generate nonportable code on every arch except # x86. And some other arches (e.g. Alpha) don't accept -mtune. Grrr. case $host_cpu in i*86|x86_64*) flags="$flags -mcpu=$arch -m$arch";; esac else flags="-march=$arch -mcpu=$arch -m$arch" fi for flag in $flags; do AX_CHECK_COMPILE_FLAG($flag, [ax_cv_gcc_archflag=$flag; break]) done test "x$ax_cv_gcc_archflag" = xunknown || break done fi fi # $GCC=yes ]) AC_MSG_CHECKING([for gcc architecture flag]) AC_MSG_RESULT($ax_cv_gcc_archflag) if test "x$ax_cv_gcc_archflag" = xunknown; then m4_default([$3],:) else m4_default([$2], [CFLAGS="$CFLAGS $ax_cv_gcc_archflag"]) fi ]) # # AX_GCC_ARCHFLAG macro end. # **************************************************************** # **************************************************************** ################################################################# # Macro: AX_CC_MAXOPT # Usage: AX_CC_MAXOPT # Authors: Copyright (C) 2007 Steven G. Johnson # Copyright (C) 2007 Matteo Frigo # Version: 2007-07-29 # Source: http://autoconf-archive.cryp.to/ax_cc_maxopt.html # # Try to turn on "good" C optimization flags for various compilers and # architectures, for some definition of "good". # # The user can override the flags by setting the CFLAGS environment # variable. The user can also specify --enable-portable-binary in # order to disable any optimization flags that might result in a # binary that only runs on the host architecture. # # Note also that the flags assume that ANSI C aliasing rules are # followed by the code (e.g. for gcc's -fstrict-aliasing), and that # floating-point computations can be re-ordered as needed. # # SRE: I've made modifications as follows. # - HMMER relies on IEEE754-compliant math. Don't enable # any options that break compliance; for example, gcc -ffast-math # - similarly, for IBM xlc, add -qstrict. # AC_DEFUN([AX_CC_MAXOPT], [ AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([AX_COMPILER_VENDOR]) AC_REQUIRE([AC_CANONICAL_HOST]) AC_ARG_ENABLE(portable-binary, [AC_HELP_STRING([--enable-portable-binary], [disable compiler optimizations that would produce unportable binaries])], acx_maxopt_portable=$withval, acx_maxopt_portable=no) # Try to determine "good" native compiler flags if none specified via CFLAGS if test "$ac_test_CFLAGS" != "set"; then CFLAGS="" case $ax_cv_c_compiler_vendor in dec) CFLAGS="-newc -w0 -O5 -ansi_alias -ansi_args -tune host" # CFLAGS="-newc -w0 -O5 -ansi_alias -ansi_args -fp_reorder -tune host" if test "x$acx_maxopt_portable" = xno; then CFLAGS="$CFLAGS -arch host" fi;; sun) CFLAGS="-native -xO5 -dalign" # CFLAGS="-native -fast -xO5 -dalign" if test "x$acx_maxopt_portable" = xyes; then CFLAGS="$CFLAGS -xarch=generic" fi;; hp) CFLAGS="+Oall +Optrs_ansi +DSnative" if test "x$acx_maxopt_portable" = xyes; then CFLAGS="$CFLAGS +DAportable" fi;; ibm) xlc_opt="-qtune=auto -qstrict" if test "x$acx_maxopt_portable" = xno; then if test "x$XLC_ARCH" = xno; then xlc_opt="-qarch=auto $xlc_opt" else xlc_opt="-qarch=$XLC_ARCH $xlc_opt" fi fi AX_CHECK_COMPILER_FLAGS($xlc_opt, CFLAGS="-O3 -qansialias -w $xlc_opt", [CFLAGS="-O3 -qansialias -w" echo "******************************************************" echo "* You seem to have the IBM C compiler. It is *" echo "* recommended for best performance that you use: *" echo "* *" echo "* CFLAGS=-O3 -qarch=xxx -qtune=xxx -qansialias -w *" echo "* ^^^ ^^^ *" echo "* where xxx is pwr2, pwr3, 604, or whatever kind of *" echo "* CPU you have. (Set the CFLAGS environment var. *" echo "* and re-run configure.) For more info, man cc. *" echo "******************************************************"]) ;; intel) CFLAGS="-O3 -ansi_alias" if test "x$acx_maxopt_portable" = xno; then icc_archflag=unknown icc_flags="" case $host_cpu in i686*|x86_64*) # icc accepts gcc assembly syntax, so these should work: AX_GCC_X86_CPUID(0) AX_GCC_X86_CPUID(1) case $ax_cv_gcc_x86_cpuid_0 in # see AX_GCC_ARCHFLAG *:756e6547:*:*) # Intel case $ax_cv_gcc_x86_cpuid_1 in *6a?:*[[234]]:*:*|*6[[789b]]?:*:*:*) icc_flags="-xK";; *f3[[347]]:*:*:*|*f4[1347]:*:*:*) icc_flags="-xP -xN -xW -xK";; *f??:*:*:*) icc_flags="-xN -xW -xK";; esac ;; esac ;; esac if test "x$icc_flags" != x; then for flag in $icc_flags; do AX_CHECK_COMPILER_FLAGS($flag, [icc_archflag=$flag; break]) done fi AC_MSG_CHECKING([for icc architecture flag]) AC_MSG_RESULT($icc_archflag) if test "x$icc_archflag" != xunknown; then CFLAGS="$CFLAGS $icc_archflag" fi fi ;; gnu) # default optimization flags for gcc on all systems CFLAGS="-O3 -fomit-frame-pointer" # -malign-double for x86 systems # SRE: no, that's a bad idea; # on 32bit Ubuntu Linux systems, for example, this # causes an odd and buggy interaction with _FILE_OFFSET_BITS (LFS) # and fstat(). # AX_CHECK_COMPILER_FLAGS(-malign-double, CFLAGS="$CFLAGS -malign-double") # -fstrict-aliasing for gcc-2.95+ AX_CHECK_COMPILER_FLAGS(-fstrict-aliasing, CFLAGS="$CFLAGS -fstrict-aliasing") # note that we enable "unsafe" fp optimization with other compilers, too # SRE: no, that's a bad idea, don't use this # AX_CHECK_COMPILER_FLAGS(-ffast-math, CFLAGS="$CFLAGS -ffast-math") AX_GCC_ARCHFLAG($acx_maxopt_portable) ;; esac if test -z "$CFLAGS"; then echo "" echo "********************************************************" echo "* WARNING: Don't know the best CFLAGS for this system *" echo "* Use ./configure CFLAGS=... to specify your own flags *" echo "* (otherwise, a default of CFLAGS=-O3 will be used) *" echo "********************************************************" echo "" CFLAGS="-O3" fi AX_CHECK_COMPILER_FLAGS($CFLAGS, [], [ echo "" echo "********************************************************" echo "* WARNING: The guessed CFLAGS don't seem to work with *" echo "* your compiler. *" echo "* Use ./configure CFLAGS=... to specify your own flags *" echo "********************************************************" echo "" CFLAGS="" ]) fi ]) # # AX_CC_MAXOPT macro end. # **************************************************************** # **************************************************************** ################################################################ # Macro: ESL_PIC_FLAGS # Usage: ESL_PIC_FLAGS # Author: Dan Nicholson, Mesa3D project # References: http://www.mesa3d.org/ # http://www.mail-archive.com/mesa3d-dev@lists.sourceforge.net/msg04938.html # # Derived (essentially verbatim) from MESA_PIC_FLAGS, in the Mesa # project's acinclude.m4 file. From the Mesa file's header: # "Find out whether to build PIC code using the option --enable-pic and # the configure enable_static/enable_shared settings. If PIC is needed, # figure out the necessary flags for the platform and compiler. # # The platform checks have been shamelessly taken from libtool and # stripped down to just what's needed for Mesa. See _LT_COMPILER_PIC in # /usr/share/aclocal/libtool.m4 or # http://git.savannah.gnu.org/gitweb/?p=libtool.git;a=blob;f=libltdl/m4/libtool.m4;hb=HEAD # # Sets an output variable @PIC_FLAGS@ which should be added to # CFLAGS lines. # AC_DEFUN([ESL_PIC_FLAGS], [AC_REQUIRE([AC_PROG_CC])dnl AC_ARG_VAR([PIC_FLAGS], [compiler flags for PIC code]) AC_ARG_ENABLE([pic], [AS_HELP_STRING([--disable-pic], [compile PIC objects @<:@default=enabled for shared builds on supported platforms@:>@])], [enable_pic="$enableval" test "x$enable_pic" = x && enable_pic=auto], [enable_pic=auto]) # disable PIC by default for static builds if test "$enable_pic" = auto && test "$enable_static" = yes; then enable_pic=no fi # if PIC hasn't been explicitly disabled, try to figure out the flags if test "$enable_pic" != no; then AC_MSG_CHECKING([for $CC option to produce PIC]) # allow the user's flags to override if test "x$PIC_FLAGS" = x; then # see if we're using GCC if test "x$GCC" = xyes; then case "$host_os" in aix*|beos*|cygwin*|irix5*|irix6*|osf3*|osf4*|osf5*) # PIC is the default for these OSes. ;; mingw*|os2*|pw32*) # This hack is so that the source file can tell whether # it is being built for inclusion in a dll (and should # export symbols for example). PIC_FLAGS="-DDLL_EXPORT" ;; darwin*|rhapsody*) # PIC is the default on this platform # Common symbols not allowed in MH_DYLIB files PIC_FLAGS="-fno-common" ;; hpux*) # PIC is the default for IA64 HP-UX and 64-bit HP-UX, # but not for PA HP-UX. case $host_cpu in hppa*64*|ia64*) ;; *) PIC_FLAGS="-fPIC" ;; esac ;; *) # Everyone else on GCC uses -fPIC PIC_FLAGS="-fPIC" ;; esac else # !GCC case "$host_os" in hpux9*|hpux10*|hpux11*) # PIC is the default for IA64 HP-UX and 64-bit HP-UX, # but not for PA HP-UX. case "$host_cpu" in hppa*64*|ia64*) # +Z the default ;; *) PIC_FLAGS="+Z" ;; esac ;; linux*|k*bsd*-gnu) case `basename "$CC"` in icc*|ecc*|ifort*) PIC_FLAGS="-KPIC" ;; pgcc*|pgf77*|pgf90*|pgf95*) # Portland Group compilers (*not* the Pentium gcc # compiler, which looks to be a dead project) PIC_FLAGS="-fpic" ;; ccc*) # All Alpha code is PIC. ;; xl*) # IBM XL C 8.0/Fortran 10.1 on PPC PIC_FLAGS="-qpic" ;; *) case `$CC -V 2>&1 | sed 5q` in *Sun\ C*|*Sun\ F*) # Sun C 5.9 or Sun Fortran PIC_FLAGS="-KPIC" ;; esac esac ;; solaris*) PIC_FLAGS="-KPIC" ;; sunos4*) PIC_FLAGS="-PIC" ;; esac fi # GCC fi # PIC_FLAGS AC_MSG_RESULT([$PIC_FLAGS]) fi AC_SUBST([PIC_FLAGS]) ]) # # ESL_PIC_FLAGS macro end. # **************************************************************** # ****************************************************************