libgomp/configure.tgt

   1 # This is the target specific configuration file.  This is invoked by the
   2 # autoconf generated configure script.  Putting it in a separate shell file
   3 # lets us skip running autoconf when modifying target specific information.
   4
   5 # This file switches on the shell variable ${target}, and sets the
   6 # following shell variables:
   7 #  config_path          An ordered list of directories to search for
   8 #                       sources and headers.  This is relative to the
   9 #                       config subdirectory of the source tree.
  10 #  XCFLAGS              Add extra compile flags to use.
  11 #  XLDFLAGS             Add extra link flags to use.
  12
  13 # Optimize TLS usage by avoiding the overhead of dynamic allocation.
  14 if test $have_tls = yes ; then
  15   case "${target}" in
  16
  17     *-*-linux*)
  18         XCFLAGS="${XCFLAGS} -ftls-model=initial-exec"
  19         ;;
  20   esac
  21 fi
  22
  23 # Since we require POSIX threads, assume a POSIX system by default.
  24 config_path="posix"
  25
  26 # Check for futex enabled all at once.
  27 if test $enable_linux_futex = yes; then
  28   case "${target}" in
  29
  30     alpha*-*-linux*)
  31         config_path="linux/alpha linux posix"
  32         ;;
  33
  34     ia64*-*-linux*)
  35         config_path="linux/ia64 linux posix"
  36         ;;
  37
  38     powerpc*-*-linux*)
  39         config_path="linux/powerpc linux posix"
  40         ;;
  41
  42     s390*-*-linux*)
  43         config_path="linux/s390 linux posix"
  44         ;;
  45
  46     # Note that bare i386 is not included here.  We need cmpxchg.
  47     i[456]86-*-linux*)
  48         config_path="linux/x86 linux posix"
  49         case " ${CC} ${CFLAGS} " in
  50           *" -m64 "*)
  51             ;;
  52           *)
  53             if test -z "$with_arch"; then
  54               XCFLAGS="${XCFLAGS} -march=i486 -mtune=${target_cpu}"
  55             fi
  56         esac
  57         ;;
  58
  59     # Similar jiggery-pokery for x86_64 multilibs, except here we
  60     # can't rely on the --with-arch configure option, since that
  61     # applies to the 64-bit side.
  62     x86_64-*-linux*)
  63         config_path="linux/x86 linux posix"
  64         case " ${CC} ${CFLAGS} " in
  65           *" -m32 "*)
  66             XCFLAGS="${XCFLAGS} -march=i486 -mtune=i686"
  67             ;;
  68         esac
  69         ;;
  70
  71     # Note that sparcv7 and sparcv8 is not included here.  We need cas.
  72     sparcv9-*-linux* | sparc64-*-linux*)
  73         echo "int i;" > conftestx.c
  74         if ${CC} ${CFLAGS} -c -o conftestx.o conftestx.c > /dev/null 2>&1; then
  75           config_path="linux/sparc linux posix"
  76           case "`/usr/bin/file conftestx.o`" in
  77             *32-bit*)
  78               case " ${CC} ${CFLAGS}" in
  79                 *" -mcpu=ultrasparc"*)
  80                   ;;
  81                 *)
  82                   XCFLAGS="${XCFLAGS} -mcpu=v9"
  83                   ;;
  84               esac
  85               ;;
  86           esac
  87         fi
  88         rm -f conftestx.c conftestx.o
  89         ;;
  90   esac
  91 fi
  92
  93 # Other system configury
  94 case "${target}" in
  95
  96   *-*-hpux11*)
  97         # HPUX v11.x requires -lrt to resolve sem_init in libgomp.la
  98         XLDFLAGS="${XLDFLAGS} -lrt"
  99         ;;
 100
 101   *-*-mingw32*)
 102         config_path="mingw32 posix"
 103         ;;
 104
 105   *-*-solaris2.[56]*)
 106         config_path="posix95 posix"
 107         XLDFLAGS="${XLDFLAGS} -lposix4"
 108         ;;
 109
 110   *)
 111         ;;
 112
 113 esac