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 strip="strip"
  33 bigendian="no"
  34 mingw32="no"
  35 LIBSUF=".a"
  36 EXESUF=""
  37 DLLSUF=".so"
  38 tcc_sysincludepaths=""
  39 tcc_libpaths=""
  40 tcc_crtprefix=""
  41 tcc_elfinterp=""
  42 triplet=
  43 tcc_lddir=
  44 confvars=
  45 suggest="yes"
  46 cpu=
  47 cpuver=
  48 gcc_major=0
  49 gcc_minor=0
  50
  51 # OS specific
  52 targetos=`uname`
  53 case $targetos in
  54   Darwin)
  55     confvars="$confvars OSX"
  56     DLLSUF=".dylib"
  57     ;;
  58   MINGW*|MSYS*|CYGWIN*)
  59     mingw32=yes
  60     ;;
  61   DragonFly|OpenBSD|FreeBSD|NetBSD)
  62     confvars="$confvars ldl=no"
  63     ;;
  64   *)
  65     ;;
  66 esac
  67
  68 # find source path
  69 source_path=${0%configure}
  70 source_path=${source_path%/}
  71 source_path_used="yes"
  72 if test -z "$source_path" -o "$source_path" = "." ; then
  73     source_path=`pwd`
  74     source_path_used="no"
  75 fi
  76
  77 for opt do
  78   eval opt=\"$opt\"
  79   case "$opt" in
  80   --prefix=*) prefix=`echo $opt | cut -d '=' -f 2`
  81   ;;
  82   --exec-prefix=*) execprefix=`echo $opt | cut -d '=' -f 2`
  83   ;;
  84   --tccdir=*) tccdir=`echo $opt | cut -d '=' -f 2`
  85   ;;
  86   --bindir=*) bindir=`echo $opt | cut -d '=' -f 2`
  87   ;;
  88   --libdir=*) libdir=`echo $opt | cut -d '=' -f 2`
  89   ;;
  90   --includedir=*) includedir=`echo $opt | cut -d '=' -f 2`
  91   ;;
  92   --sharedir=*) sharedir=`echo $opt | cut -d '=' -f 2`
  93   ;;
  94   --mandir=*) mandir=`echo $opt | cut -d '=' -f 2`
  95   ;;
  96   --infodir=*) infodir=`echo $opt | cut -d '=' -f 2`
  97   ;;
  98   --docdir=*) docdir=`echo $opt | cut -d '=' -f 2`
  99   ;;
 100   --sysroot=*) sysroot=`echo $opt | cut -d '=' -f 2`
 101   ;;
 102   --source-path=*) source_path=`echo $opt | cut -d '=' -f 2`
 103   ;;
 104   --cross-prefix=*) cross_prefix=`echo $opt | cut -d '=' -f 2`
 105   ;;
 106   --cc=*) cc=`echo $opt | cut -d '=' -f 2`
 107   ;;
 108   --ar=*) ar=`echo $opt | cut -d '=' -f 2`
 109   ;;
 110   --extra-cflags=*) CFLAGS="${opt#--extra-cflags=}"
 111   ;;
 112   --extra-ldflags=*) LDFLAGS="${opt#--extra-ldflags=}"
 113   ;;
 114   --extra-libs=*) extralibs="${opt#--extra-libs=}"
 115   ;;
 116   --sysincludepaths=*) tcc_sysincludepaths=`echo $opt | cut -d '=' -f 2`
 117   ;;
 118   --libpaths=*) tcc_libpaths=`echo $opt | cut -d '=' -f 2`
 119   ;;
 120   --crtprefix=*) tcc_crtprefix=`echo $opt | cut -d '=' -f 2`
 121   ;;
 122   --elfinterp=*) tcc_elfinterp=`echo $opt | cut -d '=' -f 2`
 123   ;;
 124   --triplet=*) triplet=`echo $opt | cut -d '=' -f 2`
 125   ;;
 126   --cpu=*) cpu=`echo $opt | cut -d '=' -f 2`
 127   ;;
 128   --enable-cross) confvars="$confvars cross"
 129   ;;
 130   --disable-static) confvars="$confvars static=no"
 131   ;;
 132   --enable-static) confvars="$confvars static"
 133   ;;
 134   --disable-rpath) confvars="$confvars rpath=no"
 135   ;;
 136   --strip-binaries) confvars="$confvars strip"
 137   ;;
 138   --with-libgcc) confvars="$confvars libgcc"
 139   ;;
 140   --with-selinux) confvars="$confvars selinux"
 141   ;;
 142   --config-mingw32*) mingw32=$(echo "$opt=yes" | cut -d '=' -f 2)
 143   ;;
 144   --config-*) confvars="$confvars ${opt#--config-}"; suggest="no"
 145   ;;
 146   --help|-h) show_help="yes"
 147   ;;
 148   *) echo "configure: WARNING: unrecognized option $opt"
 149   ;;
 150   esac
 151 done
 152
 153 cc="${cross_prefix}${cc}"
 154 ar="${cross_prefix}${ar}"
 155 strip="${cross_prefix}${strip}"
 156
 157
 158 PPIF_TEMPLATE="
 159 int ppif(void) {
 160 #if %s
 161     return 0;
 162 #else
 163     PPIF_FALSE;
 164 #endif
 165 }
 166 "
 167
 168 # Succeeds when preprocessor condition `#if $1` is true.
 169 # if $2 is not empty, prints to stderr `checking whether $2... <yes/no>`
 170 # Works also when $cc is a cross compiler to any foreign platform.
 171 # E.g. ppif "defined(__GNUC__) && (GCC_MAJOR >= 3)"
 172 #   or ppif "defined(_WIN32)" "target is Windows"
 173 ppif() {
 174     [ -z "${2-}" ] || printf "checking whether %s... " "$2" >&2
 175     printf "$PPIF_TEMPLATE" "$1" > ppif.c \
 176     && $cc -o ppif.o -c ppif.c 2>/dev/null
 177     ppif_rv=$?
 178     rm ppif.c ppif.o 2>/dev/null
 179     [ -z "${2-}" ] || { [ 0 = $ppif_rv ] && echo yes || echo no; } >&2
 180     return $ppif_rv
 181 }
 182
 183
 184 if test -z "$cpu" ; then
 185     if test -n "$ARCH" ; then
 186         cpu="$ARCH"
 187     elif ppif "defined(__x86_64__)"; then
 188         cpu="x86_64"
 189     elif ppif "defined(__i386__)"; then
 190         cpu="i386"
 191     else
 192         cpu=`uname -m`
 193     fi
 194 fi
 195
 196 case "$cpu" in
 197   x86|i386|i486|i586|i686|i86pc|BePC|i686-AT386)
 198     cpu="i386"
 199   ;;
 200   x86_64|amd64|x86-64)
 201     cpu="x86_64"
 202   ;;
 203   arm*)
 204     case "$cpu" in
 205       arm|armv4l)
 206         cpuver=4
 207       ;;
 208       armv5tel|armv5tejl)
 209         cpuver=5
 210       ;;
 211       armv6j|armv6l)
 212         cpuver=6
 213       ;;
 214       armv7a|armv7l)
 215         cpuver=7
 216       ;;
 217     esac
 218     cpu="arm"
 219   ;;
 220   aarch64)
 221     cpu="aarch64"
 222   ;;
 223   alpha)
 224     cpu="alpha"
 225   ;;
 226   "Power Macintosh"|ppc|ppc64)
 227     cpu="ppc"
 228   ;;
 229   mips)
 230     cpu="mips"
 231   ;;
 232   s390)
 233     cpu="s390"
 234   ;;
 235   riscv64)
 236     cpu="riscv64"
 237   ;;
 238   *)
 239     echo "Unsupported CPU"
 240     exit 1
 241   ;;
 242 esac
 243
 244 # Checking for CFLAGS
 245 if test -z "$CFLAGS"; then
 246     CFLAGS="-Wall -g -O2"
 247 fi
 248
 249 if test "$mingw32" = "yes" ; then
 250     if test "$source_path_used" = "no"; then
 251       source_path="."
 252     fi
 253     if test "$cc" = gcc; then
 254       test -z "$LDFLAGS" && LDFLAGS="-static"
 255     fi
 256     test -z "$prefix" && prefix="C:/Program Files/tcc"
 257     test -z "$tccdir" && tccdir="${prefix}"
 258     test -z "$bindir" && bindir="${tccdir}"
 259     test -z "$docdir" && docdir="${tccdir}/doc"
 260     test -z "$libdir" && libdir="${tccdir}/libtcc"
 261     confvars="$confvars WIN32"
 262     LIBSUF=".lib"
 263     EXESUF=".exe"
 264     DLLSUF=".dll"
 265 else
 266     if test -z "$prefix" ; then
 267       prefix="/usr/local"
 268     fi
 269     if test -z "$sharedir" ; then
 270       sharedir="${prefix}/share"
 271     fi
 272     if test x"$execprefix" = x""; then
 273       execprefix="${prefix}"
 274     fi
 275     if test x"$libdir" = x""; then
 276       libdir="${execprefix}/lib"
 277     fi
 278     if test x"$bindir" = x""; then
 279       bindir="${execprefix}/bin"
 280     fi
 281     if test x"$docdir" = x""; then
 282       docdir="${sharedir}/doc"
 283     fi
 284     if test x"$mandir" = x""; then
 285       mandir="${sharedir}/man"
 286     fi
 287     if test x"$infodir" = x""; then
 288       infodir="${sharedir}/info"
 289     fi
 290     if test x"$tccdir" = x""; then
 291       tccdir="${libdir}/tcc"
 292     fi
 293     if test x"$includedir" = x""; then
 294       includedir="${prefix}/include"
 295     fi
 296 fi # mingw32
 297
 298 if test x"$show_help" = "xyes" ; then
 299 cat << EOF
 300 Usage: configure [options]
 301 Options: [defaults in brackets after descriptions]
 302
 303 Standard options:
 304   --help                   print this message
 305   --prefix=PREFIX          install in PREFIX [$prefix]
 306   --exec-prefix=EPREFIX    install architecture-dependent files in EPREFIX
 307                            [same as prefix]
 308   --bindir=DIR             user executables in DIR [EPREFIX/bin]
 309   --libdir=DIR             object code libraries in DIR [EPREFIX/lib]
 310   --tccdir=DIR             installation directory [EPREFIX/lib/tcc]
 311   --includedir=DIR         C header files in DIR [PREFIX/include]
 312   --sharedir=DIR           documentation root DIR [PREFIX/share]
 313   --docdir=DIR             documentation in DIR [SHAREDIR/doc/tcc]
 314   --mandir=DIR             man documentation in DIR [SHAREDIR/man]
 315   --infodir=DIR            info documentation in DIR [SHAREDIR/info]
 316
 317 Advanced options (experts only):
 318   --source-path=PATH       path of source code [$source_path]
 319   --cross-prefix=PREFIX    use PREFIX for compile tools [$cross_prefix]
 320   --sysroot=PREFIX         prepend PREFIX to library/include paths []
 321   --cc=CC                  use C compiler CC [$cc]
 322   --ar=AR                  create archives using AR [$ar]
 323   --extra-cflags=          specify compiler flags [$CFLAGS]
 324   --extra-ldflags=         specify linker options []
 325   --cpu=CPU                CPU [$cpu]
 326   --strip-binaries         strip symbol tables from resulting binaries
 327   --disable-static         make libtcc.so instead of libtcc.a
 328   --enable-static          make libtcc.a instead of libtcc.dll (win32)
 329   --disable-rpath          disable use of -rpath with the above
 330   --with-libgcc            use libgcc_s.so.1 instead of libtcc1.a
 331   --enable-cross           build cross compilers
 332   --with-selinux           use mmap for executable memory (with tcc -run)
 333   --sysincludepaths=...    specify system include paths, colon separated
 334   --libpaths=...           specify system library paths, colon separated
 335   --crtprefix=...          specify locations of crt?.o, colon separated
 336   --elfinterp=...          specify elf interpreter
 337   --triplet=...            specify system library/include directory triplet
 338   --config-uClibc,-musl,-mingw32... enable system specific configurations
 339 EOF
 340 #echo "NOTE: The object files are build at the place where configure is launched"
 341 exit 1
 342 fi
 343
 344 if test -z "$cross_prefix" ; then
 345   CONFTEST=./conftest$EXESUF
 346   if ! $cc -o $CONFTEST $source_path/conftest.c 2>/dev/null ; then
 347     echo "configure: error: '$cc' failed to compile conftest.c."
 348   else
 349     gcc_major="$($CONFTEST version)"
 350     gcc_minor="$($CONFTEST minor)"
 351   fi
 352   bigendian="$($CONFTEST bigendian)"
 353   if test "$mingw32" = "no" ; then
 354
 355       if test -z "$triplet"; then
 356         tt="$($CONFTEST triplet)"
 357         if test -n "$tt" -a -f "/usr/lib/$tt/crti.o" ; then
 358           triplet="$tt"
 359         fi
 360       fi
 361
 362       if test -z "$triplet"; then
 363         if test $cpu = "x86_64" -o $cpu = "aarch64" -o $cpu = "riscv64" ; then
 364           if test -f "/usr/lib64/crti.o" ; then
 365             tcc_lddir="lib64"
 366           fi
 367         fi
 368       fi
 369
 370       if test "$cpu" = "arm" ; then
 371         if test "${triplet%eabihf}" != "$triplet" ; then
 372            confvars="$confvars arm_eabihf arm_vfp"
 373         elif test "${triplet%eabi}" != "$triplet" ; then
 374            confvars="$confvars arm_eabi"
 375         fi
 376         if grep -s -q "^Features.* \(vfp\|iwmmxt\) " /proc/cpuinfo ; then
 377            confvars="$confvars arm_vfp"
 378         fi
 379       fi
 380
 381       if test "$suggest" = "yes"; then
 382         if test -f "/lib/ld-uClibc.so.0" ; then
 383           echo "Perhaps you want ./configure --config-uClibc"
 384         fi
 385         if test -f "/lib/ld-musl-$cpu.so.1"; then
 386           echo "Perhaps you want ./configure --config-musl"
 387         fi
 388       fi
 389   fi
 390 else
 391   # if cross compiling, cannot launch a program, so make a static guess
 392   case $cpu in
 393     ppc|mips|s390)  bigendian=yes;;
 394   esac
 395 fi
 396
 397 if test "$bigendian" = "yes" ; then
 398   confvars="$confvars BIGENDIAN"
 399 fi
 400
 401 # a final configuration tuning
 402 if ! echo "$cc" | grep -q "tcc"; then
 403   OPT1="-Wdeclaration-after-statement -fno-strict-aliasing"
 404   # we want -Wno- but gcc does not always reject unknown -Wno- options
 405   OPT2="-Wpointer-sign -Wsign-compare -Wunused-result -Wformat-truncation"
 406   if echo "$cc" | grep -q "clang"; then
 407     OPT1="$OPT1 -fheinous-gnu-extensions"
 408     OPT2="$OPT2 -Wstring-plus-int"
 409   fi
 410   $cc $OPT1 $OPT2 -o a.out -c -xc - < /dev/null > cc_msg.txt 2>&1
 411   for o in $OPT1; do # enable these options
 412     if ! grep -q -- $o cc_msg.txt; then CFLAGS="$CFLAGS $o"; fi
 413   done
 414   for o in $OPT2; do # disable these options
 415     if ! grep -q -- $o cc_msg.txt; then CFLAGS="$CFLAGS -Wno-${o#-W*}"; fi
 416   done
 417   # cat cc_msg.txt
 418   # echo $CFLAGS
 419   rm -f cc_msg.txt a.out
 420 fi
 421
 422 fcho() { if test -n "$2"; then echo "$1$2"; fi }
 423
 424 fcho "Binary directory    " "$bindir"
 425 fcho "TinyCC directory    " "$tccdir"
 426 fcho "Library directory   " "$libdir"
 427 fcho "Include directory   " "$includedir"
 428 fcho "Manual directory    " "$mandir"
 429 fcho "Info directory      " "$infodir"
 430 fcho "Doc directory       " "$docdir"
 431 fcho "Target root prefix  " "$sysroot"
 432 echo "Source path         $source_path"
 433 echo "C compiler          $cc ($gcc_major.$gcc_minor)"
 434 echo "Target OS           $targetos"
 435 echo "CPU                 $cpu"
 436 fcho "Triplet             " "$triplet"
 437 fcho "Config              " "${confvars# }"
 438 echo "Creating config.mak and config.h"
 439
 440 cat >config.mak <<EOF
 441 # Automatically generated by configure - do not modify
 442 prefix=$prefix
 443 bindir=\$(DESTDIR)$bindir
 444 tccdir=\$(DESTDIR)$tccdir
 445 libdir=\$(DESTDIR)$libdir
 446 includedir=\$(DESTDIR)$includedir
 447 mandir=\$(DESTDIR)$mandir
 448 infodir=\$(DESTDIR)$infodir
 449 docdir=\$(DESTDIR)$docdir
 450 CC=$cc
 451 GCC_MAJOR=$gcc_major
 452 GCC_MINOR=$gcc_minor
 453 AR=$ar
 454 STRIP=$strip -s -R .comment -R .note
 455 CFLAGS=$CFLAGS
 456 LDFLAGS=$LDFLAGS
 457 LIBSUF=$LIBSUF
 458 EXESUF=$EXESUF
 459 DLLSUF=$DLLSUF
 460 EOF
 461
 462 print_inc() {
 463   if test -n "$2"; then
 464     echo "#ifndef $1" >> $TMPH
 465     echo "# define $1 \"$2\"" >> $TMPH
 466     echo "#endif" >> $TMPH
 467   fi
 468 }
 469
 470 print_mak() {
 471   if test -n "$2"; then
 472     echo "NATIVE_DEFINES+=-D$1=\"\\\"$2\\\"\"" >> config.mak
 473   fi
 474 }
 475
 476 print_mak_int() {
 477   if test -n "$2"; then
 478     echo "NATIVE_DEFINES+=-D$1=$2" >> config.mak
 479   fi
 480 }
 481
 482 echo "/* Automatically generated by configure - do not modify */" > $TMPH
 483
 484 print_inc CONFIG_SYSROOT "$sysroot"
 485 print_inc CONFIG_TCCDIR "$tccdir"
 486 print_mak CONFIG_TCC_SYSINCLUDEPATHS "$tcc_sysincludepaths"
 487 print_mak CONFIG_TCC_LIBPATHS "$tcc_libpaths"
 488 print_mak CONFIG_TCC_CRTPREFIX "$tcc_crtprefix"
 489 print_mak CONFIG_TCC_ELFINTERP "$tcc_elfinterp"
 490 print_mak CONFIG_LDDIR "$tcc_lddir"
 491 print_mak CONFIG_TRIPLET "$triplet"
 492 print_mak_int TCC_CPU_VERSION "$cpuver"
 493
 494 if test "$cpu" = "aarch64" ; then
 495   echo "ARCH=arm64" >> config.mak
 496 else
 497   echo "ARCH=$cpu" >> config.mak
 498 fi
 499 echo "TARGETOS=$targetos" >> config.mak
 500
 501 for v in $confvars ; do
 502   if test "${v%=*}" = "$v"; then
 503     echo "CONFIG_$v=yes" >> config.mak
 504   else
 505     echo "CONFIG_$v" >> config.mak
 506   fi
 507 done
 508
 509 version=`head $source_path/VERSION`
 510 echo "VERSION = $version" >> config.mak
 511 echo "#define TCC_VERSION \"$version\"" >> $TMPH
 512 echo "@set VERSION $version" > config.texi
 513
 514 if test "$source_path_used" = "yes" ; then
 515     case $source_path in
 516        /*) echo "TOPSRC=$source_path";;
 517         *) echo "TOPSRC=\$(TOP)/$source_path";;
 518      esac >>config.mak
 519 else
 520      echo 'TOPSRC=$(TOP)' >>config.mak
 521 fi
 522
 523 diff $TMPH config.h >/dev/null 2>&1
 524 if test $? -ne 0 ; then
 525     mv -f $TMPH config.h
 526 else
 527     echo "config.h is unchanged"
 528 fi
 529
 530 rm -f $TMPN* $CONFTEST
 531
 532 # ---------------------------------------------------------------------------
 533 # build tree in object directory if source path is different from current one
 534
 535 fn_makelink()
 536 {
 537     tgt=$1/$2
 538     case $2 in
 539     */*) dn=${2%/*}
 540          test -d $dn || mkdir -p $dn
 541          case $1 in
 542          /*) ;;
 543           *) while test $dn ; do
 544                 tgt=../$tgt; dn=${dn#${dn%%/*}}; dn=${dn#/}
 545              done
 546              ;;
 547          esac
 548          ;;
 549     esac
 550
 551     ln -sfn $tgt $2 || ( echo "ln failed. Using cp instead."; cp -f $1/$2 $2 )
 552 }
 553
 554 if test "$source_path_used" = "yes" ; then
 555   FILES="Makefile lib/Makefile tests/Makefile tests/tests2/Makefile tests/pp/Makefile"
 556   for f in $FILES ; do
 557     fn_makelink $source_path $f
 558   done
 559 fi
 560
 561 # ---------------------------------------------------------------------------