configure

   1 #!/bin/sh
   2 #
   3 # tcc configure script (c) 2003 Fabrice Bellard
   4
   5 # set temporary file name
   6 # if test ! -z "$TMPDIR" ; then
   7 #     TMPDIR1="${TMPDIR}"
   8 # elif test ! -z "$TEMPDIR" ; then
   9 #     TMPDIR1="${TEMPDIR}"
  10 # else
  11 #     TMPDIR1="/tmp"
  12 # fi
  13 #
  14 # bashism: TMPN="${TMPDIR1}/tcc-conf-${RANDOM}-$$-${RANDOM}.c"
  15
  16 TMPN="./conftest-$$"
  17 TMPH=$TMPN.h
  18
  19 # default parameters
  20 prefix=""
  21 execprefix=""
  22 bindir=""
  23 libdir=""
  24 tccdir=""
  25 includedir=""
  26 mandir=""
  27 infodir=""
  28 sysroot=""
  29 cross_prefix=""
  30 cc="gcc"
  31 ar="ar"
  32 bigendian="no"
  33 mingw32="no"
  34 LIBSUF=".a"
  35 EXESUF=""
  36 DLLSUF=".so"
  37 tcc_usrinclude=""
  38 tcc_sysincludepaths=""
  39 tcc_libpaths=""
  40 tcc_crtprefix=""
  41 tcc_elfinterp=""
  42 triplet=
  43 tcc_lddir=
  44 confvars=
  45 suggest="yes"
  46 gcc_major=0
  47 gcc_minor=0
  48 cc_name="gcc"
  49 ar_set=
  50 cpu=
  51 cpuver=
  52 dwarf=
  53 targetos=
  54 build_cross=
  55
  56 # use CC/AR from environment when set
  57 test -n "$CC" && cc="$CC"
  58 test -n "$AR" && ar="$AR"
  59
  60 # set default CFLAGS if unset in environment
  61 test -z "$CFLAGS" && CFLAGS="-Wall -O2"
  62
  63 # find source path
  64 source_path=${0%configure}
  65 source_path=${source_path%/}
  66
  67 for opt do
  68   eval opt=\"$opt\"
  69   case "$opt" in
  70   --prefix=*) prefix=`echo $opt | cut -d '=' -f 2-`
  71   ;;
  72   --exec-prefix=*) execprefix=`echo $opt | cut -d '=' -f 2-`
  73   ;;
  74   --tccdir=*) tccdir=`echo $opt | cut -d '=' -f 2-`
  75   ;;
  76   --bindir=*) bindir=`echo $opt | cut -d '=' -f 2-`
  77   ;;
  78   --libdir=*) libdir=`echo $opt | cut -d '=' -f 2-`
  79   ;;
  80   --includedir=*) includedir=`echo $opt | cut -d '=' -f 2-`
  81   ;;
  82   --sharedir=*) sharedir=`echo $opt | cut -d '=' -f 2-`
  83   ;;
  84   --mandir=*) mandir=`echo $opt | cut -d '=' -f 2-`
  85   ;;
  86   --infodir=*) infodir=`echo $opt | cut -d '=' -f 2-`
  87   ;;
  88   --docdir=*) docdir=`echo $opt | cut -d '=' -f 2-`
  89   ;;
  90   --sysroot=*) sysroot=`echo $opt | cut -d '=' -f 2-`
  91   ;;
  92   --targetos=*) targetos=`echo $opt | cut -d '=' -f 2-`
  93   ;;
  94   --source-path=*) source_path=`echo $opt | cut -d '=' -f 2-`
  95   ;;
  96   --cross-prefix=*) cross_prefix=`echo $opt | cut -d '=' -f 2-`
  97   ;;
  98   --cc=*) cc=`echo $opt | cut -d '=' -f 2-`
  99   ;;
 100   --ar=*) ar=`echo $opt | cut -d '=' -f 2-` ; ar_set="yes"
 101   ;;
 102   --extra-cflags=*) CFLAGS="${opt#--extra-cflags=}"
 103   ;;
 104   --extra-ldflags=*) LDFLAGS="${opt#--extra-ldflags=}"
 105   ;;
 106   --extra-libs=*) extralibs="${opt#--extra-libs=}"
 107   ;;
 108   --sysincludepaths=*) tcc_sysincludepaths=`echo $opt | cut -d '=' -f 2-`
 109   ;;
 110   --libpaths=*) tcc_libpaths=`echo $opt | cut -d '=' -f 2-`
 111   ;;
 112   --crtprefix=*) tcc_crtprefix=`echo $opt | cut -d '=' -f 2-`
 113   ;;
 114   --elfinterp=*) tcc_elfinterp=`echo $opt | cut -d '=' -f 2-`
 115   ;;
 116   --triplet=*) triplet=`echo $opt | cut -d '=' -f 2-`
 117   ;;
 118   --cpu=*) cpu=`echo $opt | cut -d '=' -f 2-`
 119   ;;
 120   --dwarf=*) dwarf=`echo $opt | cut -d '=' -f 2-`
 121   ;;
 122   --enable-cross) confvars="$confvars cross"
 123   ;;
 124   --disable-static) confvars="$confvars static=no"
 125   ;;
 126   --enable-static) confvars="$confvars static"
 127   ;;
 128   --disable-rpath) confvars="$confvars rpath=no"
 129   ;;
 130   --debug) confvars="$confvars debug"
 131   ;;
 132   --with-libgcc) confvars="$confvars libgcc"
 133   ;;
 134   --with-selinux) confvars="$confvars selinux"
 135   ;;
 136   --tcc-switches=*) tcc_switches=`echo $opt | cut -d '=' -f 2-`
 137   ;;
 138   --config-mingw32*) mingw32=$(echo "$opt=yes" | cut -d '=' -f 2)
 139   ;;
 140   --config-*) confvars="$confvars ${opt#--config-}"; suggest="no"
 141   ;;
 142   --help|-h) show_help="yes"
 143   ;;
 144   *) echo "configure: WARNING: unrecognized option $opt"
 145   ;;
 146   esac
 147 done
 148
 149 show_help() {
 150 cat << EOF
 151 Usage: configure [options]
 152 Options: [defaults in brackets after descriptions]
 153
 154 Standard options:
 155   --help                   print this message
 156   --prefix=PREFIX          install in PREFIX [$prefix]
 157   --exec-prefix=EPREFIX    install architecture-dependent files in EPREFIX
 158                            [same as prefix]
 159   --bindir=DIR             user executables in DIR [EPREFIX/bin]
 160   --libdir=DIR             object code libraries in DIR [EPREFIX/lib]
 161   --tccdir=DIR             installation directory [EPREFIX/lib/tcc]
 162   --includedir=DIR         C header files in DIR [PREFIX/include]
 163   --sharedir=DIR           documentation root DIR [PREFIX/share]
 164   --docdir=DIR             documentation in DIR [SHAREDIR/doc/tcc]
 165   --mandir=DIR             man documentation in DIR [SHAREDIR/man]
 166   --infodir=DIR            info documentation in DIR [SHAREDIR/info]
 167
 168 Advanced options (experts only):
 169   --source-path=PATH       path of source code [$source_path]
 170   --sysroot=PREFIX         prepend PREFIX to library/include paths [$sysroot]
 171   --cc=CC                  use C compiler CC [$cc]
 172   --ar=AR                  create archives using AR [$ar]
 173   --extra-cflags=          specify compiler flags [$CFLAGS]
 174   --extra-ldflags=         specify linker options [$LDFLAGS]
 175
 176   --debug                  include debug info with resulting binaries
 177   --disable-static         make libtcc.so instead of libtcc.a
 178   --enable-static          make libtcc.a instead of libtcc.dll (win32)
 179   --disable-rpath          disable use of -rpath with libtcc.so
 180   --with-libgcc            use libgcc_s.so.1 instead of libtcc1.a
 181   --with-selinux           use mmap for executable memory (tcc -run)
 182   --enable-cross           build cross compilers (see also 'make help')
 183
 184   --sysincludepaths=...    specify system include paths, colon separated
 185   --libpaths=...           specify system library paths, colon separated
 186   --crtprefix=...          specify locations of crt?.o, colon separated
 187   --elfinterp=...          specify elf interpreter
 188   --triplet=...            specify system library/include directory triplet
 189   --tcc-switches=...       specify implicit switches passed to tcc
 190
 191   --config-uClibc,-musl    enable system specific configurations
 192   --config-mingw32         build on windows using msys, busybox, etc.
 193   --config-backtrace=no    disable stack backtraces (with -run or -bt)
 194   --config-bcheck=no       disable bounds checker (-b)
 195   --config-predefs=no      do not compile tccdefs.h, instead just include
 196   --config-new_macho=no|yes Force apple object format (autodetect osx <= 10)
 197   --config-codesign=no     do not use codesign on apple to sign executables
 198   --dwarf=x                Use dwarf debug info instead of stabs (x=2..5)
 199
 200 Cross build options (experimental):
 201   --cpu=CPU                target CPU [$cpu]
 202   --targetos=...           target OS (Darwin,WIN32,Android/Termux) [$targetos]
 203   --cross-prefix=PREFIX    use PREFIX for compile tools [$cross_prefix]
 204 EOF
 205 exit 1
 206 }
 207
 208 default() # set variable unless already set
 209 {
 210     local v
 211     eval v=\"\$$1\"
 212     test -z "$v" && eval $1=\"$2\"
 213 }
 214
 215 default_conf() # add to confvars unless already present
 216 {
 217     local v=${1%=*}
 218     test "${confvars%$v*}" = "${confvars}" && confvars="$confvars $1"
 219 }
 220
 221 if test -z "$source_path" -o "$source_path" = "." ; then
 222   source_path=$(pwd)
 223   source_path_used="no"
 224 else
 225   source_path_used="yes"
 226 fi
 227
 228 # OS specific
 229 buildos=$(uname)
 230
 231 case $buildos in
 232   Windows_NT|MINGW*|MSYS*|CYGWIN*)
 233     buildos="WIN32"
 234   ;;
 235   Linux)
 236     if test "$(uname -o)" = "Android"; then
 237       buildos=Android
 238       if test -n "$TERMUX_VERSION"; then
 239         buildos=Termux
 240       fi
 241     fi
 242   ;;
 243 esac
 244
 245 if test "$mingw32" = "yes"; then
 246   default targetos WIN32
 247 else
 248   default targetos "$buildos"
 249 fi
 250
 251 cpu_sys=$(uname -m)
 252 default cpu "$cpu_sys"
 253 cpu_set="$cpu"
 254
 255 # check for crpss build
 256 if test "$cpu_set" != "$cpu_sys" \
 257   -o "$targetos" != "$buildos" \
 258   -o -n "$cross_prefix" ; then
 259   build_cross="yes"
 260   cc="${cross_prefix}${cc}"
 261   ar="${cross_prefix}${ar}"
 262 fi
 263
 264 case "$cpu" in
 265   x86|i386|i486|i586|i686|i86pc|BePC|i686-AT386)
 266     cpu="i386"
 267   ;;
 268   x86_64|amd64|x86-64)
 269     cpu="x86_64"
 270   ;;
 271   evbarm)
 272     case "`uname -p`" in
 273       aarch64|arm64)
 274         cpu="arm64"
 275         ;;
 276       earmv*)
 277         cpu="arm"
 278         ;;
 279     esac
 280   ;;
 281   aarch64|arm64|evbarm)
 282     cpu="arm64"
 283   ;;
 284   arm*)
 285     case "$cpu" in
 286       arm|armv4l)
 287         cpuver=4
 288       ;;
 289       armv5tel|armv5tejl)
 290         cpuver=5
 291       ;;
 292       armv6j|armv6l)
 293         cpuver=6
 294       ;;
 295       armv7|armv7a|armv7l)
 296         cpuver=7
 297       ;;
 298     esac
 299     cpu="arm"
 300   ;;
 301   alpha)
 302     cpu="alpha"
 303   ;;
 304   "Power Macintosh"|ppc|ppc64)
 305     cpu="ppc"
 306   ;;
 307   mips)
 308     cpu="mips"
 309   ;;
 310   s390)
 311     cpu="s390"
 312   ;;
 313   riscv64)
 314     cpu="riscv64"
 315   ;;
 316   *)
 317     echo "Unsupported CPU"
 318     exit 1
 319   ;;
 320 esac
 321
 322 case $targetos in
 323   Darwin)
 324     dwarf=4
 325     confvars="$confvars OSX"
 326     default_conf "codesign"
 327     DLLSUF=".dylib"
 328     if test -z "$build_cross"; then
 329       cc=`command -v cc`
 330       cc=`readlink $cc || echo clang`
 331       tcc_usrinclude="`xcrun --show-sdk-path`/usr/include"
 332       if test "${confvars%new_macho*}" = "${confvars}"; then
 333           # if new_macho was not specified and (known) ver <= 10, use old (=no)
 334           osxver=$(sw_vers -productVersion 2>/dev/null)  # X.Y.Z
 335           osxver=${osxver%%.*}  # major version (or empty on sw_vers error)
 336           [ "${osxver:-11}" -ge 11 ] || confvars="$confvars new_macho=no"
 337       fi
 338     fi
 339     # on OSX M1 with --cpu=x86_64, build a tcc to run under rosetta entirely
 340     if test "$cpu" = "x86_64" -a "$cpu_sys" = "arm64"; then
 341         CFLAGS="$CFLAGS -arch $cpu"
 342         LDFLAGS="$LDFLAGS -arch $cpu"
 343     fi
 344     ;;
 345   DragonFly|OpenBSD|FreeBSD|NetBSD)
 346     confvars="$confvars BSD ldl=no"
 347     ;;
 348   Android|Termux)
 349     if test "$targetos" = "Termux"; then
 350       targetos=Android
 351       default sysroot "/data/data/com.termux/files/usr"
 352     else
 353       default sysroot "/usr"
 354     fi
 355     default prefix "${sysroot}"
 356     confvars="$confvars Android new-dtags rpath=no"
 357     test "${cpu}" != "i386" && confvars="$confvars pie"
 358     default_conf "static=no"
 359     if test "${cpu}" = "arm"; then
 360       default triplet "arm-linux-androideabi"
 361       cpuver=7
 362     else
 363       default triplet "${cpu_set}-linux-android"
 364     fi
 365     test "${cpu%64}" != "${cpu}" && S="64" || S=""
 366     default tcc_sysincludepaths "{B}/include:{R}/include:{R}/include/${triplet}"
 367     default tcc_libpaths "{B}:{R}/lib:/system/lib${S}"
 368     default tcc_crtprefix "{R}/lib"
 369     default tcc_elfinterp "/system/bin/linker${S}"
 370     default tcc_switches "-Wl,-rpath=$sysroot/lib"
 371     ;;
 372   WIN32)
 373     mingw32="yes"
 374     confvars="$confvars WIN32"
 375     default prefix "C:/Program Files/tcc"
 376     default tccdir "${prefix}"
 377     default bindir "${tccdir}"
 378     default docdir "${tccdir}/doc"
 379     default libdir "${tccdir}/libtcc"
 380     test "$tccdir" = "$bindir" && tccdir_auto="yes"
 381     LIBSUF=".lib"
 382     EXESUF=".exe"
 383     DLLSUF=".dll"
 384     if test "$source_path_used" = "no"; then
 385       source_path="."
 386     fi
 387     ;;
 388   *)
 389     ;;
 390 esac
 391
 392 if test "$mingw32" = "no"; then
 393   default prefix       "/usr/local"
 394   default execprefix   "${prefix}"
 395   default libdir       "${execprefix}/lib"
 396   default bindir       "${execprefix}/bin"
 397   default tccdir       "${libdir}/tcc"
 398   default includedir   "${prefix}/include"
 399   default sharedir     "${prefix}/share"
 400   default docdir       "${sharedir}/doc"
 401   default mandir       "${sharedir}/man"
 402   default infodir      "${sharedir}/info"
 403 fi
 404
 405 if test x"$show_help" = "xyes" ; then
 406     show_help
 407 fi
 408
 409 if test -z "$build_cross"; then
 410   CONFTEST=./conftest$EXESUF
 411   if ! $cc -o $CONFTEST $source_path/conftest.c ; then
 412     echo "configure: error: '$cc' failed to compile conftest.c."
 413   else
 414     cc_name="$($CONFTEST compiler)"
 415     gcc_major="$($CONFTEST version)"
 416     gcc_minor="$($CONFTEST minor)"
 417     bigendian="$($CONFTEST bigendian)"
 418     _triplet="$($CONFTEST triplet)"
 419   fi
 420   if test "$mingw32" = "no" ; then
 421       if test -z "$triplet" -a -n "$_triplet"; then
 422         if test -f "/usr/lib/$_triplet/crti.o"; then
 423           triplet="$_triplet"
 424         fi
 425       fi
 426       if test -z "$triplet"; then
 427         if test $cpu = "x86_64" -o $cpu = "arm64" -o $cpu = "riscv64" ; then
 428           if test -f "/usr/lib64/crti.o" ; then
 429             tcc_lddir="lib64"
 430           fi
 431         fi
 432       fi
 433       if test "$suggest" = "yes"; then
 434         if test -f "/lib/ld-uClibc.so.0" ; then
 435           echo "Perhaps you want ./configure --config-uClibc"
 436         fi
 437         if test -f "/lib/ld-musl-$cpu.so.1"; then
 438           echo "Perhaps you want ./configure --config-musl"
 439         fi
 440       fi
 441   fi
 442 else
 443   # can only make guesses about compiler and target
 444   if test "${cc%tcc*}" != "$cc"; then
 445     cc_name="tcc"
 446   elif test "${cc%clang*}" != "$cc"; then
 447     cc_name="clang"
 448   fi
 449   case $cpu in
 450     ppc|mips|s390)  bigendian=yes;;
 451   esac
 452   case $targetos in
 453     Linux)
 454       default triplet "$cpu_set-linux-gnu"
 455   esac
 456 fi
 457
 458 if test "$bigendian" = "yes" ; then
 459   confvars="$confvars BIGENDIAN"
 460 fi
 461
 462 if test "$mingw32" = "yes" -a "$cc_name" = "gcc"; then
 463   # avoid mingw dependencies such as 'libgcc_s_dw2-1.dll'
 464   default LDFLAGS "-static"
 465 fi
 466
 467 if test "$cpu" = "arm"; then
 468   if test "${triplet%eabihf}" != "$triplet" ; then
 469     confvars="$confvars arm_eabihf arm_vfp"
 470   elif test "${triplet%eabi}" != "$triplet" ; then
 471     confvars="$confvars arm_eabi arm_vfp"
 472   elif test -z "$build_cross"; then
 473     if test "${_triplet%eabihf}" != "$_triplet" ; then
 474       confvars="$confvars arm_eabihf arm_vfp"
 475     elif test "${_triplet%eabi}" != "$_triplet" ; then
 476       confvars="$confvars arm_eabi arm_vfp"
 477     elif grep -s -q "^Features.* \(vfp\|iwmmxt\) " /proc/cpuinfo ; then
 478       confvars="$confvars arm_vfp"
 479     fi
 480   fi
 481 fi
 482
 483 if test -n "$dwarf"; then
 484   confvars="$confvars dwarf=$dwarf"
 485 fi
 486
 487 # a final configuration tuning
 488 if test "$cc_name" != "tcc"; then
 489   OPT1="-Wdeclaration-after-statement -fno-strict-aliasing"
 490   # we want -Wno- but gcc does not always reject unknown -Wno- options
 491   OPT2="-Wpointer-sign -Wsign-compare -Wunused-result -Wformat-truncation"
 492   OPT2="$OPT2 -Wstringop-truncation"
 493   if test "$cc_name" = "clang"; then
 494     OPT1="$OPT1 -fheinous-gnu-extensions"
 495     OPT2="$OPT2 -Wstring-plus-int -Wdeprecated-declarations"
 496   fi
 497   $cc $OPT1 $OPT2 -o a.out -c -xc - < /dev/null > cc_msg.txt 2>&1
 498   for o in $OPT1; do # enable these options
 499     if ! grep -q -- $o cc_msg.txt; then CFLAGS="$CFLAGS $o"; fi
 500   done
 501   for o in $OPT2; do # disable these options
 502     if ! grep -q -- $o cc_msg.txt; then CFLAGS="$CFLAGS -Wno-${o#-W*}"; fi
 503   done
 504   # cat cc_msg.txt
 505   # echo $CFLAGS
 506   rm -f cc_msg.txt a.out
 507 else # cc is tcc
 508   test "$ar_set" || ar="$cc -ar"
 509 fi
 510
 511 fcho() { if test -n "$2"; then echo "$1$2"; fi }
 512
 513 fcho "Binary directory    " "$bindir"
 514 fcho "TinyCC directory    " "$tccdir"
 515 fcho "Library directory   " "$libdir"
 516 fcho "Include directory   " "$includedir"
 517 fcho "Manual directory    " "$mandir"
 518 fcho "Info directory      " "$infodir"
 519 fcho "Doc directory       " "$docdir"
 520 fcho "Target root prefix  " "$sysroot"
 521 fcho "/usr/include dir    " "$tcc_usrinclude"
 522 echo "Source path         $source_path"
 523 echo "Build OS            $(uname -m -s)"
 524 echo "C compiler          $cc ($gcc_major.$gcc_minor)"
 525 echo "Target OS           $targetos"
 526 echo "CPU                 $cpu"
 527 fcho "Triplet             " "$triplet"
 528 fcho "Libs                " "$tcc_libpaths"
 529 fcho "Sysinclude          " "$tcc_sysincludepaths"
 530 fcho "Crt                 " "$tcc_crtprefix"
 531 fcho "Elfinterp           " "$tcc_elfinterp"
 532 fcho "Switches            " "$tcc_switches"
 533 fcho "Config              " "${confvars# }"
 534 echo "Creating config.mak and config.h"
 535
 536 cat >config.mak <<EOF
 537 # Automatically generated by configure - do not modify
 538 prefix=$prefix
 539 bindir=\$(DESTDIR)$bindir
 540 tccdir=\$(DESTDIR)$tccdir
 541 libdir=\$(DESTDIR)$libdir
 542 includedir=\$(DESTDIR)$includedir
 543 mandir=\$(DESTDIR)$mandir
 544 infodir=\$(DESTDIR)$infodir
 545 docdir=\$(DESTDIR)$docdir
 546 CC=$cc
 547 CC_NAME=$cc_name
 548 GCC_MAJOR=$gcc_major
 549 GCC_MINOR=$gcc_minor
 550 AR=$ar
 551 CFLAGS=$CFLAGS
 552 LDFLAGS=$LDFLAGS
 553 LIBSUF=$LIBSUF
 554 EXESUF=$EXESUF
 555 DLLSUF=$DLLSUF
 556 EOF
 557
 558 print_inc() {
 559   local v="$2"
 560   if test -n "$v"; then
 561     test "$3" = "num" || v="\"$v\""
 562     echo "#ifndef $1" >> $TMPH
 563     echo "# define $1 $v" >> $TMPH
 564     echo "#endif" >> $TMPH
 565   fi
 566 }
 567
 568 print_mak() {
 569   local v="$2"
 570   if test -n "$v"; then
 571     test "$3" = "num" || v="\"\\\"$v\\\"\""
 572     echo "NATIVE_DEFINES+=-D$1=$v" >> config.mak
 573   fi
 574 }
 575
 576 echo "/* Automatically generated by configure - do not modify */" > $TMPH
 577
 578 print_inc CONFIG_SYSROOT "$sysroot"
 579 test "$tccdir_auto" = "yes" || print_inc CONFIG_TCCDIR "$tccdir"
 580 print_inc DWARF_VERSION "$dwarf" num
 581 print_mak CONFIG_USR_INCLUDE "$tcc_usrinclude"
 582 print_mak CONFIG_TCC_SYSINCLUDEPATHS "$tcc_sysincludepaths"
 583 print_mak CONFIG_TCC_LIBPATHS "$tcc_libpaths"
 584 print_mak CONFIG_TCC_CRTPREFIX "$tcc_crtprefix"
 585 print_mak CONFIG_TCC_ELFINTERP "$tcc_elfinterp"
 586 print_mak CONFIG_TCC_SWITCHES "$tcc_switches"
 587 print_mak CONFIG_LDDIR "$tcc_lddir"
 588 print_mak CONFIG_TRIPLET "$triplet"
 589 print_mak TCC_CPU_VERSION "$cpuver" num
 590
 591 echo "ARCH=$cpu" >> config.mak
 592 echo "TARGETOS=$targetos" >> config.mak
 593 echo "BUILDOS=$buildos" >> config.mak
 594
 595 predefs="1"
 596 for v in $confvars ; do
 597   test "$v" = "predefs=no" && predefs=""
 598   if test "${v%=*}" = "$v"; then
 599     echo "CONFIG_$v=yes" >> config.mak
 600   else
 601     echo "CONFIG_$v" >> config.mak
 602   fi
 603 done
 604 print_inc CONFIG_TCC_PREDEFS "$predefs" num
 605
 606 version=`head $source_path/VERSION`
 607 echo "VERSION = $version" >> config.mak
 608 echo "#define TCC_VERSION \"$version\"" >> $TMPH
 609 echo "@set VERSION $version" > config.texi
 610
 611 if test "$source_path_used" = "yes" ; then
 612     case $source_path in
 613        /*) echo "TOPSRC=$source_path";;
 614         *) echo "TOPSRC=\$(TOP)/$source_path";;
 615      esac >>config.mak
 616 else
 617      echo 'TOPSRC=$(TOP)' >>config.mak
 618 fi
 619 cat >>$TMPH <<EOF
 620 #define GCC_MAJOR $gcc_major
 621 #define GCC_MINOR $gcc_minor
 622 #define CC_NAME CC_${cc_name}
 623 EOF
 624
 625 diff $TMPH config.h >/dev/null 2>&1
 626 if test $? -ne 0 ; then
 627     mv -f $TMPH config.h
 628 else
 629     echo "config.h is unchanged"
 630 fi
 631
 632 rm -f $TMPN* $CONFTEST
 633
 634 # ---------------------------------------------------------------------------
 635 # build tree in object directory if source path is different from current one
 636
 637 fn_makelink()
 638 {
 639     tgt=$1/$2
 640     case $2 in
 641     */*) dn=${2%/*}
 642          test -d $dn || mkdir -p $dn
 643          case $1 in
 644          /*) ;;
 645           *) while test $dn ; do
 646                 tgt=../$tgt; dn=${dn#${dn%%/*}}; dn=${dn#/}
 647              done
 648              ;;
 649          esac
 650          ;;
 651     esac
 652
 653     ln -sfn $tgt $2 || ( echo "ln failed. Using cp instead."; cp -f $1/$2 $2 )
 654 }
 655
 656 if test "$source_path_used" = "yes" ; then
 657   FILES="Makefile lib/Makefile tests/Makefile tests/tests2/Makefile tests/pp/Makefile"
 658   for f in $FILES ; do
 659     fn_makelink $source_path $f
 660   done
 661 fi
 662
 663 # ---------------------------------------------------------------------------