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 $gcc_cv_have_tls = yes ; then
  15   case "${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     arm*-*-linux*)
  35         config_path="linux posix"
  36         ;;
  37
  38     ia64*-*-linux*)
  39         config_path="linux/ia64 linux posix"
  40         ;;
  41
  42     mips*-*-linux*)
  43         config_path="linux/mips linux posix"
  44         ;;
  45
  46     powerpc*-*-linux*)
  47         config_path="linux/powerpc linux posix"
  48         ;;
  49
  50     s390*-*-linux*)
  51         config_path="linux/s390 linux posix"
  52         ;;
  53
  54     tile*-*-linux*)
  55         config_path="linux/tile linux posix"
  56         ;;
  57
  58     # Note that bare i386 is not included here.  We need cmpxchg.
  59     i[456]86-*-linux*)
  60         config_path="linux/x86 linux posix"
  61         case " ${CC} ${CFLAGS} " in
  62           *" -m64 "*)
  63             ;;
  64           *)
  65             if test -z "$with_arch"; then
  66               XCFLAGS="${XCFLAGS} -march=i486 -mtune=${target_cpu}"
  67             fi
  68         esac
  69         ;;
  70
  71     # Similar jiggery-pokery for x86_64 multilibs, except here we
  72     # can't rely on the --with-arch configure option, since that
  73     # applies to the 64-bit side.
  74     x86_64-*-linux*)
  75         config_path="linux/x86 linux posix"
  76         case " ${CC} ${CFLAGS} " in
  77           *" -m32 "*)
  78             XCFLAGS="${XCFLAGS} -march=i486 -mtune=i686"
  79             ;;
  80         esac
  81         ;;
  82
  83     # Note that sparcv7 and sparcv8 is not included here.  We need cas.
  84     sparcv9-*-linux* | sparc64-*-linux*)
  85         echo "int i;" > conftestx.c
  86         if ${CC} ${CFLAGS} -c -o conftestx.o conftestx.c > /dev/null 2>&1; then
  87           config_path="linux/sparc linux posix"
  88           case "`/usr/bin/file conftestx.o`" in
  89             *32-bit*)
  90               case " ${CC} ${CFLAGS}" in
  91                 *" -mcpu=ultrasparc"*)
  92                   ;;
  93                 *)
  94                   XCFLAGS="${XCFLAGS} -mcpu=v9"
  95                   ;;
  96               esac
  97               ;;
  98           esac
  99         fi
 100         rm -f conftestx.c conftestx.o
 101         ;;
 102   esac
 103 fi
 104
 105 # Other system configury
 106 case "${target}" in
 107
 108   *-*-hpux*)
 109         case "${target}" in
 110           *-*-hpux11*)
 111              # HPUX v11.x requires -lrt to resolve sem_init in libgomp.la
 112              XLDFLAGS="${XLDFLAGS} -lrt"
 113              ;;
 114         esac
 115         case "${target}" in
 116           hppa[12]*-*-hpux*)
 117             # PA 32 HP-UX needs -frandom-seed for bootstrap compare.
 118             XCFLAGS="${XCFLAGS} -frandom-seed=fixed-seed"
 119             ;;
 120         esac
 121         ;;
 122
 123   *-*-mingw32*)
 124         config_path="mingw32 posix"
 125         ;;
 126
 127   *-*-darwin*)
 128         config_path="bsd posix"
 129         ;;
 130
 131   *-*-freebsd*)
 132         # Need to link with -lpthread so libgomp.so is self-contained.
 133         XLDFLAGS="${XLDFLAGS} -lpthread"
 134         ;;
 135
 136   mips-sgi-irix6*)
 137         # Need to link with -lpthread so libgomp.so is self-contained.
 138         XLDFLAGS="${XLDFLAGS} -lpthread"
 139         ;;
 140   *)
 141         ;;
 142
 143 esac