mk-conf.sh

   1 #!/bin/sh -
   2 #@ Please see `INSTALL' and `conf.rc' instead.
   3
   4 LC_ALL=C
   5 export LC_ALL
   6
   7 # Predefined CONFIG= urations take precedence over anything else
   8 if [ -n "${CONFIG}" ]; then
   9    case ${CONFIG} in
  10    MINIMAL)
  11       WANT_SOCKETS=0
  12       WANT_IDNA=0
  13       WANT_READLINE=0 WANT_EDITLINE=0 WANT_NCL=0
  14       WANT_IMAP_SEARCH=0
  15       WANT_REGEX=0
  16       WANT_SPAM=0
  17       WANT_DOCSTRINGS=0
  18       WANT_QUOTE_FOLD=0
  19       WANT_COLOUR=0
  20       ;;
  21    MEDIUM)
  22       WANT_SOCKETS=0
  23       WANT_IDNA=0
  24       WANT_READLINE=0 WANT_EDITLINE=0
  25       WANT_IMAP_SEARCH=0
  26       WANT_SPAM=0
  27       WANT_QUOTE_FOLD=0
  28       WANT_COLOUR=0
  29       ;;
  30    NETSEND)
  31       WANT_IMAP=0
  32       WANT_POP3=0
  33       WANT_READLINE=0 WANT_EDITLINE=0
  34       WANT_IMAP_SEARCH=0
  35       WANT_SPAM=0
  36       WANT_QUOTE_FOLD=0
  37       WANT_COLOUR=0
  38       ;;
  39    *)
  40       echo >&2 "Unknown CONFIG= setting: ${CONFIG}"
  41       echo >&2 'Possible values: MINIMAL, MEDIUM, NETSEND'
  42       exit 1
  43    esac
  44 fi
  45
  46 # Inter-relationships
  47 option_update() {
  48    if nwantfeat SOCKETS; then
  49       WANT_IPV6=0 WANT_SSL=0
  50       WANT_IMAP=0 WANT_GSSAPI=0 WANT_POP3=0 WANT_SMTP=0
  51    fi
  52    if nwantfeat IMAP && nwantfeat POP3 && nwantfeat SMTP; then
  53       WANT_SOCKETS=0 WANT_IPV6=0 WANT_SSL=0
  54    fi
  55    if nwantfeat IMAP; then
  56       WANT_GSSAPI=0
  57    fi
  58    # If we don't need MD5 except for producing boundary and message-id strings,
  59    # leave it off, plain old srand(3) should be enough for that purpose.
  60    if nwantfeat SOCKETS; then
  61       WANT_MD5=0
  62    fi
  63    if wantfeat DEBUG; then
  64       WANT_NOALLOCA=1
  65    fi
  66 }
  67
  68 # Check out compiler ($CC) and -flags ($CFLAGS)
  69 compiler_flags() {
  70    i=`uname -s`
  71    _CFLAGS=
  72
  73    # $CC is overwritten when empty or a default "cc", even without WANT_AUTOCC
  74    optim= dbgoptim=
  75    if [ -z "${CC}" ] || [ "${CC}" = cc ]; then
  76       _CFLAGS=
  77       if { CC="`command -v clang`"; }; then
  78          :
  79       elif { CC="`command -v gcc`"; }; then
  80          :
  81       elif { CC="`command -v c89`"; }; then
  82          [ "${i}" = UnixWare ] && _CFLAGS=-v optim=-O dbgoptim=
  83       elif { CC="`command -v c99`"; }; then
  84          :
  85       else
  86          echo >&2 'ERROR'
  87          echo >&2 ' I cannot find a compiler!'
  88          echo >&2 ' Neither of clang(1), gcc(1), c89(1) and c99(1).'
  89          echo >&2 ' Please set the CC environment variable, maybe CFLAGS also.'
  90          exit 1
  91       fi
  92    fi
  93    export CC
  94
  95    ccver=`${CC} --version 2>/dev/null`
  96    stackprot=no
  97    if { i=${ccver}; echo "${i}"; } | ${grep} -q -i -e gcc -e clang; then
  98    #if echo "${i}" | ${grep} -q -i -e gcc -e 'clang version 1'; then
  99       optim=-O2 dbgoptim=-O
 100       stackprot=yes
 101       _CFLAGS="${_CFLAGS} -Wall -Wextra -pedantic"
 102       _CFLAGS="${_CFLAGS} -fno-unwind-tables -fno-asynchronous-unwind-tables"
 103       _CFLAGS="${_CFLAGS} -fstrict-aliasing"
 104       _CFLAGS="${_CFLAGS} -Wbad-function-cast -Wcast-align -Wcast-qual"
 105       _CFLAGS="${_CFLAGS} -Winit-self -Wmissing-prototypes"
 106       _CFLAGS="${_CFLAGS} -Wshadow -Wunused -Wwrite-strings"
 107       if { i=${ccver}; echo "${i}"; } | ${grep} -q -e 'clang version 1'; then
 108          :
 109       else
 110          _CFLAGS="${_CFLAGS} -fstrict-overflow -Wstrict-overflow=5"
 111          if wantfeat AMALGAMATION && nwantfeat DEBUG; then
 112             _CFLAGS="${_CFLAGS} -Wno-unused-function"
 113          fi
 114          if { i=${ccver}; echo "${i}"; } | ${grep} -q -i -e clang; then
 115             _CFLAGS="${_CFLAGS} -Wno-unused-result" # TODO handle the right way
 116          fi
 117       fi
 118       if wantfeat AMALGAMATION; then
 119          _CFLAGS="${_CFLAGS} -pipe"
 120       fi
 121       if wantfeat DEBUG; then
 122          _CFLAGS="${_CFLAGS} -std=c89"
 123          _CFLAGS="${_CFLAGS} -Wno-long-long" # ISO C89 has no 'long long'...
 124       fi
 125 #   elif { i=${ccver}; echo "${i}"; } | ${grep} -q -i -e clang; then
 126 #      stackprot=yes
 127 #      optim=-O3 dbgoptim=-O
 128 #      _CFLAGS='-std=c89 -g -Weverything -Wno-long-long'
 129 #      if wantfeat AMALGAMATION; then
 130 #         _CFLAGS="${_CFLAGS} -pipe"
 131 #      fi
 132 #      if wantfeat DEBUG; then
 133 #         _CFLAGS="${_CFLAGS} -std=c89"
 134 #         _CFLAGS="${_CFLAGS} -Wno-long-long" # ISO C89 has no 'long long'...
 135 #      fi
 136    elif [ -z "${optim}" ]; then
 137       optim=-O1 dbgoptim=-O
 138    fi
 139
 140    if nwantfeat DEBUG; then
 141       _CFLAGS="${optim} -DNDEBUG ${_CFLAGS}"
 142    else
 143       _CFLAGS="${dbgoptim} -g -ftrapv ${_CFLAGS}";
 144       if [ "${stackprot}" = yes ]; then
 145          _CFLAGS="${_CFLAGS} -fstack-protector-all "
 146             _CFLAGS="${_CFLAGS} -Wstack-protector -D_FORTIFY_SOURCE=2"
 147       fi
 148    fi
 149    _CFLAGS="${_CFLAGS} ${ADDCFLAGS}"
 150    # XXX -Wl,-z,relro -Wl,-z,now -Wl,-z,noexecstack: need detection
 151    _LDFLAGS="${_LDFLAGS} ${ADDLDFLAGS}" # XXX -Wl,--sort-common,[-O1]
 152    export _CFLAGS _LDFLAGS
 153
 154    # $CFLAGS and $LDFLAGS are only overwritten if explicitly wanted
 155    if wantfeat AUTOCC; then
 156       CFLAGS=$_CFLAGS
 157       LDFLAGS=$_LDFLAGS
 158       export CFLAGS LDFLAGS
 159    fi
 160 }
 161
 162 ##  --  >8  --  8<  --  ##
 163
 164 ## Notes:
 165 ## - Heirloom sh(1) (and same origin) have problems with ': >' redirection,
 166 ##   so use "printf '' >" instead
 167 ## - Heirloom sh(1) and maybe more execute loops with redirection in a subshell
 168 ##   (but don't export eval's from within), therefore we need to (re)include
 169 ##   variable assignments at toplevel instead (via reading temporary files)
 170
 171 ## First of all, create new configuration and check wether it changed ##
 172
 173 conf=./conf.rc
 174 lst=./config.lst
 175 h=./config.h
 176 mk=./mk.mk
 177
 178 newlst=./config.lst-new
 179 newmk=./config.mk-new
 180 newh=./config.h-new
 181 tmp0=___tmp
 182 tmp=./${tmp0}1$$
 183
 184 # We need some standard utilities
 185 unset -f command
 186 check_tool() {
 187    n=$1 i=$2 opt=${3:-0}
 188    if type "${i}" >/dev/null 2>&1; then
 189       eval ${n}=${i}
 190       return 1
 191    fi
 192    if [ ${opt} -eq 0 ]; then
 193       echo >&2 "ERROR: no trace of the utility \`${n}'"
 194       exit 1
 195    fi
 196    return 0
 197 }
 198
 199 # Check those tools right now that we need before including ${conf}
 200 check_tool rm "${rm:-`command -v rm`}"
 201 check_tool sed "${sed:-`command -v sed`}"
 202
 203 # Only incorporate what wasn't overwritten from command line / CONFIG
 204 trap "${rm} -f ${tmp}; exit" 1 2 15
 205 trap "${rm} -f ${tmp}" 0
 206 ${rm} -f ${tmp}
 207
 208 < ${conf} ${sed} -e '/^[ \t]*#/d' -e '/^$/d' -e 's/[ \t]*$//' |
 209 while read line; do
 210    i=`echo ${line} | ${sed} -e 's/=.*$//'`
 211    eval j=\$${i} jx=\${${i}+x}
 212    if [ -n "${j}" ] || [ "${jx}" = x ]; then
 213       line="${i}=\"${j}\""
 214    fi
 215    echo ${line}
 216 done > ${tmp}
 217 . ./${tmp}
 218
 219 check_tool awk "${awk:-`command -v awk`}"
 220 check_tool cat "${cat:-`command -v cat`}"
 221 check_tool chmod "${chmod:-`command -v chmod`}"
 222 check_tool cp "${cp:-`command -v cp`}"
 223 check_tool cmp "${cmp:-`command -v cmp`}"
 224 check_tool grep "${grep:-`command -v grep`}"
 225 check_tool mkdir "${mkdir:-`command -v mkdir`}"
 226 check_tool mv "${mv:-`command -v mv`}"
 227 # rm(1), sed(1) above
 228 check_tool tee "${tee:-`command -v tee`}"
 229
 230 check_tool make "${MAKE:-`command -v make`}"
 231 check_tool strip "${STRIP:-`command -v strip`}" 1
 232 HAVE_STRIP=${?}
 233
 234 wantfeat() {
 235    eval i=\$WANT_${1}
 236    [ "${i}" = "1" ]
 237 }
 238 nwantfeat() {
 239    eval i=\$WANT_${1}
 240    [ "${i}" != "1" ]
 241 }
 242
 243 option_update
 244
 245 # (No function since some shells loose non-exported variables in traps)
 246 trap "${rm} -f ${tmp} ${newlst} ${newmk} ${newh}; exit" 1 2 15
 247 trap "${rm} -f ${tmp} ${newlst} ${newmk} ${newh}" 0
 248 ${rm} -f ${newlst} ${newmk} ${newh}
 249
 250 # (Could: use FD redirection, add eval(1) and don't re-'. ./${newlst}')
 251 while read line; do
 252    i=`echo ${line} | ${sed} -e 's/=.*$//'`
 253    eval j=\$${i}
 254    if [ -z "${j}" ] || [ "${j}" = 0 ]; then
 255       printf "/*#define ${i}*/\n" >> ${newh}
 256    elif [ "${j}" = 1 ]; then
 257       printf "#define ${i}\n" >> ${newh}
 258    else
 259       printf "#define ${i} \"${j}\"\n" >> ${newh}
 260    fi
 261    printf "${i} = ${j}\n" >> ${newmk}
 262    printf "${i}=\"${j}\"\n"
 263 done < ${tmp} > ${newlst}
 264 . ./${newlst}
 265
 266 printf "#define UAGENT \"${SID}${NAIL}\"\n" >> ${newh}
 267 printf "UAGENT = ${SID}${NAIL}\n" >> ${newmk}
 268
 269 compiler_flags
 270
 271 printf "CC = ${CC}\n" >> ${newmk}
 272 printf "_CFLAGS = ${_CFLAGS}\nCFLAGS = ${CFLAGS}\n" >> ${newmk}
 273 printf "_LDFLAGS = ${_LDFLAGS}\nLDFLAGS = ${LDFLAGS}\n" >> ${newmk}
 274 printf "AWK = ${awk}\nCMP = ${cmp}\nCHMOD = ${chmod}\nCP = ${cp}\n" >> ${newmk}
 275 printf "GREP = ${grep}\nMKDIR = ${mkdir}\nRM = ${rm}\nSED = ${sed}\n" \
 276    >> ${newmk}
 277 printf "STRIP = ${strip}\nHAVE_STRIP = ${HAVE_STRIP}\n" >> ${newmk}
 278 # (We include the cc(1)/ld(1) environment only for update detection..)
 279 printf "CC=\"${CC}\"\n" >> ${newlst}
 280 printf "_CFLAGS=\"${_CFLAGS}\"\nCFLAGS=\"${CFLAGS}\"\n" >> ${newlst}
 281 printf "_LDFLAGS=\"${_LDFLAGS}\"\nLDFLAGS=\"${LDFLAGS}\"\n" >> ${newlst}
 282 printf "AWK=${awk}\nCMP=${cmp}\nCHMOD=${chmod}\nCP=${cp}\n" >> ${newlst}
 283 printf "GREP=${grep}\nMKDIR=${mkdir}\nRM=${rm}\nSED=${sed}\n" >> ${newlst}
 284 printf "STRIP=${strip}\nHAVE_STRIP=${HAVE_STRIP}\n" >> ${newlst}
 285
 286 if [ -f ${lst} ] && ${cmp} ${newlst} ${lst} >/dev/null 2>&1; then
 287    exit 0
 288 fi
 289 [ -f ${lst} ] && echo 'configuration updated..' || echo 'shiny configuration..'
 290
 291 ${mv} -f ${newlst} ${lst}
 292 ${mv} -f ${newh} ${h}
 293 ${mv} -f ${newmk} ${mk}
 294
 295 ## Compile and link checking ##
 296
 297 tmp2=./${tmp0}2$$
 298 tmp3=./${tmp0}3$$
 299 log=./config.log
 300 lib=./config.lib
 301 inc=./config.inc
 302 src=./config.c
 303 makefile=./config.mk
 304
 305 # (No function since some shells loose non-exported variables in traps)
 306 trap "${rm} -f ${lst} ${h} ${mk} ${lib} ${inc} ${src} ${makefile}; exit" 1 2 15
 307 trap "${rm} -rf ${tmp0}.* ${tmp0}* ${makefile}" 0
 308
 309 exec 5>&2 > ${log} 2>&1
 310 printf '' > ${lib}
 311 printf '' > ${inc}
 312 # ${src} is only created if WANT_AMALGAMATION
 313 ${rm} -f ${src}
 314 ${cat} > ${makefile} << \!
 315 .SUFFIXES: .o .c .x .y
 316 .c.o:
 317         $(CC) $(XINCS) -c $<
 318 .c.x:
 319         $(CC) $(XINCS) -E $< >$@
 320 .c:
 321         $(CC) $(XINCS) -o $@ $< $(XLIBS)
 322 .y: ;
 323 !
 324
 325 msg() {
 326    fmt=$1
 327
 328    shift
 329    printf "*** ${fmt}\\n" "${@}"
 330    printf "${fmt}" "${@}" >&5
 331 }
 332
 333 _check_preface() {
 334    variable=$1 topic=$2 define=$3
 335
 336    echo '**********'
 337    msg "checking ${topic} ... "
 338    echo "/* checked ${topic} */" >> ${h}
 339    ${rm} -f ${tmp} ${tmp}.o
 340    echo '*** test program is'
 341    ${tee} ${tmp}.c
 342    #echo '*** the preprocessor generates'
 343    #${make} -f ${makefile} ${tmp}.x
 344    #${cat} ${tmp}.x
 345    echo '*** results are'
 346 }
 347
 348 compile_check() {
 349    variable=$1 topic=$2 define=$3
 350
 351    _check_preface "${variable}" "${topic}" "${define}"
 352
 353    if ${make} -f ${makefile} XINCS="${INCS}" ./${tmp}.o &&
 354          [ -f ./${tmp}.o ]; then
 355       msg "yes\\n"
 356       echo "${define}" >> ${h}
 357       eval have_${variable}=yes
 358       return 0
 359    else
 360       echo "/* ${define} */" >> ${h}
 361       msg "no\\n"
 362       eval unset have_${variable}
 363       return 1
 364    fi
 365 }
 366
 367 _link_mayrun() {
 368    run=$1 variable=$2 topic=$3 define=$4 libs=$5 incs=$6
 369
 370    _check_preface "${variable}" "${topic}" "${define}"
 371
 372    if ${make} -f ${makefile} XINCS="${INCS} ${incs}" \
 373             XLIBS="${LIBS} ${libs}" ./${tmp} &&
 374          [ -f ./${tmp} ] &&
 375          { [ ${run} -eq 0 ] || ./${tmp}; }; then
 376       echo "*** adding INCS<${incs}> LIBS<${libs}>"
 377       msg "yes\\n"
 378       echo "${define}" >> ${h}
 379       LIBS="${LIBS} ${libs}"
 380       echo "${libs}" >> ${lib}
 381       INCS="${INCS} ${incs}"
 382       echo "${incs}" >> ${inc}
 383       eval have_${variable}=yes
 384       return 0
 385    else
 386       msg "no\\n"
 387       echo "/* ${define} */" >> ${h}
 388       eval unset have_${variable}
 389       return 1
 390    fi
 391 }
 392
 393 link_check() {
 394    _link_mayrun 0 "${1}" "${2}" "${3}" "${4}" "${5}"
 395 }
 396
 397 run_check() {
 398    _link_mayrun 1 "${1}" "${2}" "${3}" "${4}" "${5}"
 399 }
 400
 401 # Build a basic set of INCS and LIBS according to user environment.
 402 # On pkgsrc(7) systems automatically add /usr/pkg/*
 403 if [ -n "${C_INCLUDE_PATH}" ]; then
 404    i=${IFS}
 405    IFS=:
 406    set -- ${C_INCLUDE_PATH}
 407    IFS=${i}
 408    # for i; do -- new in POSIX Issue 7 + TC1
 409    for i
 410    do
 411       [ "${i}" = '/usr/pkg/include' ] && continue
 412       INCS="${INCS} -I${i}"
 413    done
 414 fi
 415 [ -d /usr/pkg/include ] && INCS="${INCS} -I/usr/pkg/include"
 416 echo "${INCS}" >> ${inc}
 417
 418 if [ -n "${LD_LIBRARY_PATH}" ]; then
 419    i=${IFS}
 420    IFS=:
 421    set -- ${LD_LIBRARY_PATH}
 422    IFS=${i}
 423    # for i; do -- new in POSIX Issue 7 + TC1
 424    for i
 425    do
 426       [ "${i}" = '/usr/pkg/lib' ] && continue
 427       LIBS="${LIBS} -L${i}"
 428    done
 429 fi
 430 [ -d /usr/pkg/lib ] && LIBS="${LIBS} -L/usr/pkg/lib"
 431 echo "${LIBS}" >> ${lib}
 432
 433 ##
 434
 435 # Better set _GNU_SOURCE (if we are on Linux only?); 'surprised it did without
 436 echo '#define _GNU_SOURCE' >> ${h}
 437
 438 if link_check hello 'if a hello world program can be built' << \!
 439 #include <stdio.h>
 440
 441 int main(int argc, char *argv[])
 442 {
 443    (void)argc;
 444    (void)argv;
 445    puts("hello world");
 446    return 0;
 447 }
 448 !
 449 then
 450    :
 451 else
 452    echo >&5 'This oooops is most certainly not related to me.'
 453    echo >&5 "Read the file ${log} and check your compiler environment."
 454    ${rm} -f ${lst} ${h} ${mk}
 455    exit 1
 456 fi
 457
 458 if link_check termios 'for termios.h and tc*() family' << \!
 459 #include <termios.h>
 460 int main(void)
 461 {
 462    struct termios tios;
 463    tcgetattr(0, &tios);
 464    tcsetattr(0, TCSADRAIN | TCSAFLUSH, &tios);
 465    return 0;
 466 }
 467 !
 468 then
 469    :
 470 else
 471    echo >&5 'We require termios.h and the tc*() family of functions.'
 472    echo >&5 "That much Unix we indulge ourselfs."
 473    ${rm} -f ${lst} ${h} ${mk}
 474    exit 1
 475 fi
 476
 477 link_check setenv 'for setenv()/unsetenv()' '#define HAVE_SETENV' << \!
 478 #include <stdlib.h>
 479 int main(void)
 480 {
 481    setenv("s-nail", "to be made nifty!", 1);
 482    unsetenv("s-nail");
 483    return 0;
 484 }
 485 !
 486
 487 link_check snprintf 'for snprintf()' '#define HAVE_SNPRINTF' << \!
 488 #include <stdio.h>
 489 int main(void)
 490 {
 491    char b[20];
 492    snprintf(b, sizeof b, "%s", "string");
 493    return 0;
 494 }
 495 !
 496
 497 link_check putc_unlocked 'for putc_unlocked()' '#define HAVE_PUTC_UNLOCKED' <<\!
 498 #include <stdio.h>
 499 int main(void)
 500 {
 501    putc_unlocked('@', stdout);
 502    return 0;
 503 }
 504 !
 505
 506 link_check fchdir 'for fchdir()' '#define HAVE_FCHDIR' << \!
 507 #include <unistd.h>
 508 int main(void)
 509 {
 510    fchdir(0);
 511    return 0;
 512 }
 513 !
 514
 515 link_check pipe2 'for pipe2()' '#define HAVE_PIPE2' << \!
 516 #include <fcntl.h>
 517 #include <unistd.h>
 518 int main(void)
 519 {
 520    int fds[2];
 521    pipe2(fds, O_CLOEXEC);
 522    return 0;
 523 }
 524 !
 525
 526 link_check mmap 'for mmap()' '#define HAVE_MMAP' << \!
 527 #include <sys/types.h>
 528 #include <sys/mman.h>
 529 int main(void)
 530 {
 531    mmap(0, 0, 0, 0, 0, 0);
 532    return 0;
 533 }
 534 !
 535
 536 link_check mremap 'for mremap()' '#define HAVE_MREMAP' << \!
 537 #include <sys/types.h>
 538 #include <sys/mman.h>
 539 int main(void)
 540 {
 541    mremap(0, 0, 0, MREMAP_MAYMOVE);
 542    return 0;
 543 }
 544 !
 545
 546 link_check setlocale 'for setlocale()' '#define HAVE_SETLOCALE' << \!
 547 #include <locale.h>
 548 int main(void)
 549 {
 550    setlocale(LC_ALL, "");
 551    return 0;
 552 }
 553 !
 554
 555 if [ "${have_setlocale}" = yes ]; then
 556    link_check c90amend1 'for ISO/IEC 9899:1990/Amendment 1:1995' \
 557       '#define HAVE_C90AMEND1' << \!
 558 #include <limits.h>
 559 #include <stdlib.h>
 560 #include <wchar.h>
 561 #include <wctype.h>
 562 int main(void)
 563 {
 564         char mbb[MB_LEN_MAX + 1];
 565    wchar_t      wc;
 566    iswprint(L'c');
 567    towupper(L'c');
 568    mbtowc(&wc, "x", 1);
 569    mbrtowc(&wc, "x", 1, NULL);
 570         (void)wctomb(mbb, wc);
 571    return (mblen("\0", 1) == 0);
 572 }
 573 !
 574
 575    if [ "${have_c90amend1}" = yes ]; then
 576       link_check wcwidth 'for wcwidth()' '#define HAVE_WCWIDTH' << \!
 577 #include <wchar.h>
 578 int main(void)
 579 {
 580    wcwidth(L'c');
 581    return 0;
 582 }
 583 !
 584    fi
 585
 586    link_check nl_langinfo 'for nl_langinfo()' '#define HAVE_NL_LANGINFO' << \!
 587 #include <langinfo.h>
 588 #include <stdlib.h>
 589 int main(void)
 590 {
 591    nl_langinfo(DAY_1);
 592    return (nl_langinfo(CODESET) == NULL);
 593 }
 594 !
 595 fi # have_setlocale
 596
 597 link_check mkstemp 'for mkstemp()' '#define HAVE_MKSTEMP' << \!
 598 #include <stdlib.h>
 599 int main(void)
 600 {
 601    mkstemp("x");
 602    return 0;
 603 }
 604 !
 605
 606 # Note: run_check, thus we also get only the desired implementation...
 607 run_check realpath 'for realpath()' '#define HAVE_REALPATH' << \!
 608 #include <stdlib.h>
 609 int main(void)
 610 {
 611    char *x = realpath(".", NULL), *y = realpath("/", NULL);
 612    return (x != NULL && y != NULL) ? 0 : 1;
 613 }
 614 !
 615
 616 link_check wordexp 'for wordexp()' '#define HAVE_WORDEXP' << \!
 617 #include <wordexp.h>
 618 int main(void)
 619 {
 620    wordexp((char *)0, (wordexp_t *)0, 0);
 621    return 0;
 622 }
 623 !
 624
 625 ##
 626
 627 if wantfeat DEBUG; then
 628    echo '#define HAVE_DEBUG' >> ${h}
 629 fi
 630
 631 if wantfeat AMALGAMATION; then
 632    echo '#define HAVE_AMALGAMATION' >> ${h}
 633 fi
 634
 635 if nwantfeat NOALLOCA; then
 636    # Due to NetBSD PR lib/47120 it seems best not to use non-cc-builtin
 637    # versions of alloca(3) since modern compilers just can't be trusted
 638    # not to overoptimize and silently break some code
 639    link_check alloca 'for __builtin_alloca()' \
 640       '#define HAVE_ALLOCA __builtin_alloca' << \!
 641 int main(void)
 642 {
 643    void *vp = __builtin_alloca(1);
 644    return (!! vp);
 645 }
 646 !
 647 fi
 648
 649 if nwantfeat NOGETOPT; then
 650    link_check getopt 'for getopt()' '#define HAVE_GETOPT' << \!
 651 #include <unistd.h>
 652 int main(int argc, char **argv)
 653 {
 654 #if defined __GLIBC__ || defined __linux__
 655    Argument and option reordering is not a desired feature.
 656 #else
 657    getopt(argc, argv, "oPt");
 658 #endif
 659    return (((long)optarg + optind) & 0x7F);
 660 }
 661 !
 662 fi
 663
 664 ##
 665
 666 if wantfeat ICONV; then
 667    ${cat} > ${tmp2}.c << \!
 668 #include <iconv.h>
 669 int main(void)
 670 {
 671    iconv_t      id;
 672
 673    id = iconv_open("foo", "bar");
 674    return 0;
 675 }
 676 !
 677    < ${tmp2}.c link_check iconv 'for iconv functionality' \
 678          '#define HAVE_ICONV' ||
 679       < ${tmp2}.c link_check iconv \
 680          'for iconv functionality in libiconv' \
 681          '#define HAVE_ICONV' '-liconv'
 682 else
 683    echo '/* WANT_ICONV=0 */' >> ${h}
 684 fi # wantfeat ICONV
 685
 686 if wantfeat SOCKETS; then
 687    compile_check arpa_inet_h 'for <arpa/inet.h>' \
 688       '#define HAVE_ARPA_INET_H' << \!
 689 #include "config.h"
 690 #include <sys/types.h>
 691 #include <sys/socket.h>
 692 #include <netdb.h>
 693 #include <netinet/in.h>
 694 #include <arpa/inet.h>
 695 !
 696
 697    ${cat} > ${tmp2}.c << \!
 698 #include "config.h"
 699 #include <sys/types.h>
 700 #include <sys/socket.h>
 701 #include <netdb.h>
 702 #include <netinet/in.h>
 703 #ifdef HAVE_ARPA_INET_H
 704 #include <arpa/inet.h>
 705 #endif
 706
 707 int main(void)
 708 {
 709    struct sockaddr      s;
 710    socket(AF_INET, SOCK_STREAM, 0);
 711    connect(0, &s, 0);
 712    gethostbyname("foo");
 713    return 0;
 714 }
 715 !
 716
 717    < ${tmp2}.c link_check sockets 'for sockets in libc' \
 718          '#define HAVE_SOCKETS' ||
 719       < ${tmp2}.c link_check sockets 'for sockets in libnsl' \
 720          '#define HAVE_SOCKETS' '-lnsl' ||
 721       < ${tmp2}.c link_check sockets \
 722          'for sockets in libsocket and libnsl' \
 723          '#define HAVE_SOCKETS' '-lsocket -lnsl' ||
 724       WANT_SOCKETS=0
 725
 726    # XXX Shouldn't it be a hard error if there is no socket support, then?
 727    option_update
 728 else
 729    echo '/* WANT_SOCKETS=0 */' >> ${h}
 730 fi # wantfeat SOCKETS
 731
 732 wantfeat SOCKETS &&
 733 link_check setsockopt 'for setsockopt()' '#define HAVE_SETSOCKOPT' << \!
 734 #include <sys/socket.h>
 735 #include <stdlib.h>
 736 int main(void)
 737 {
 738    int sockfd = 3;
 739    setsockopt(sockfd, SOL_SOCKET, SO_KEEPALIVE, NULL, 0);
 740    return 0;
 741 }
 742 !
 743
 744 wantfeat SOCKETS && [ -n "${have_setsockopt}" ] &&
 745 link_check so_sndtimeo 'for SO_SNDTIMEO' '#define HAVE_SO_SNDTIMEO' << \!
 746 #include <sys/socket.h>
 747 #include <stdlib.h>
 748 int main(void)
 749 {
 750    struct timeval tv;
 751    int sockfd = 3;
 752    tv.tv_sec = 42;
 753    tv.tv_usec = 21;
 754    setsockopt(sockfd, SOL_SOCKET, SO_SNDTIMEO, &tv, sizeof tv);
 755    setsockopt(sockfd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof tv);
 756    return 0;
 757 }
 758 !
 759
 760 wantfeat SOCKETS && [ -n "${have_setsockopt}" ] &&
 761 link_check so_linger 'for SO_LINGER' '#define HAVE_SO_LINGER' << \!
 762 #include <sys/socket.h>
 763 #include <stdlib.h>
 764 int main(void)
 765 {
 766    struct linger li;
 767    int sockfd = 3;
 768    li.l_onoff = 1;
 769    li.l_linger = 42;
 770    setsockopt(sockfd, SOL_SOCKET, SO_LINGER, &li, sizeof li);
 771    return 0;
 772 }
 773 !
 774
 775 if wantfeat IPV6; then
 776    link_check ipv6 'for IPv6 functionality' '#define HAVE_IPV6' << \!
 777 #include "config.h"
 778 #include <sys/types.h>
 779 #include <sys/socket.h>
 780 #include <netdb.h>
 781 #include <netinet/in.h>
 782 #ifdef HAVE_ARPA_INET_H
 783 #include <arpa/inet.h>
 784 #endif
 785
 786 int main(void)
 787 {
 788    struct addrinfo      a, *ap;
 789    getaddrinfo("foo", "0", &a, &ap);
 790    return 0;
 791 }
 792 !
 793 else
 794    echo '/* WANT_IPV6=0 */' >> ${h}
 795 fi # wantfeat IPV6
 796
 797 if wantfeat IMAP; then
 798    echo '#define HAVE_IMAP' >> ${h}
 799 else
 800    echo '/* WANT_IMAP=0 */' >> ${h}
 801 fi
 802
 803 if wantfeat POP3; then
 804    echo '#define HAVE_POP3' >> ${h}
 805 else
 806    echo '/* WANT_POP3=0 */' >> ${h}
 807 fi
 808
 809 if wantfeat SMTP; then
 810    echo '#define HAVE_SMTP' >> ${h}
 811 else
 812    echo '/* WANT_SMTP=0 */' >> ${h}
 813 fi
 814
 815 if wantfeat SSL; then
 816    link_check openssl 'for sufficiently recent OpenSSL' \
 817       '#define HAVE_SSL
 818       #define HAVE_OPENSSL' '-lssl -lcrypto' << \!
 819 #include <openssl/ssl.h>
 820 #include <openssl/err.h>
 821 #include <openssl/x509v3.h>
 822 #include <openssl/x509.h>
 823 #include <openssl/rand.h>
 824
 825 #if defined OPENSSL_NO_SSL2 && defined OPENSSL_NO_SSL3 &&\
 826       defined OPENSSL_NO_TLS1
 827 # error We need one of (SSLv2 and) SSLv3 and TLS1.
 828 #endif
 829
 830 int main(void)
 831 {
 832    SSLv23_client_method();
 833 #ifndef OPENSSL_NO_SSL3
 834    SSLv3_client_method();
 835 #endif
 836 #ifndef OPENSSL_NO_TLS1
 837    TLSv1_client_method();
 838 # ifdef TLS1_1_VERSION
 839    TLSv1_1_client_method();
 840 # endif
 841 # ifdef TLS1_2_VERSION
 842    TLSv1_2_client_method();
 843 # endif
 844 #endif
 845    PEM_read_PrivateKey(0, 0, 0, 0);
 846    return 0;
 847 }
 848 !
 849
 850    if [ "${have_openssl}" = 'yes' ]; then
 851       compile_check stack_of 'for OpenSSL STACK_OF()' \
 852          '#define HAVE_STACK_OF' << \!
 853 #include <openssl/ssl.h>
 854 #include <openssl/err.h>
 855 #include <openssl/x509v3.h>
 856 #include <openssl/x509.h>
 857 #include <openssl/rand.h>
 858
 859 int main(void)
 860 {
 861    STACK_OF(GENERAL_NAME) *gens = NULL;
 862    printf("%p", gens);  /* to make it used */
 863    return 0;
 864 }
 865 !
 866
 867       if wantfeat MD5; then
 868          run_check openssl_md5 'for MD5 digest in OpenSSL' \
 869          '#define HAVE_OPENSSL_MD5' << \!
 870 #include <string.h>
 871 #include <openssl/md5.h>
 872
 873 int main(void)
 874 {
 875    char const dat[] = "abrakadabrafidibus";
 876    char dig[16], hex[16 * 2];
 877    MD5_CTX ctx;
 878    size_t i, j;
 879
 880    memset(dig, 0, sizeof(dig));
 881    memset(hex, 0, sizeof(hex));
 882    MD5_Init(&ctx);
 883    MD5_Update(&ctx, dat, sizeof(dat) - 1);
 884    MD5_Final(dig, &ctx);
 885
 886 #define hexchar(n) ((n) > 9 ? (n) - 10 + 'a' : (n) + '0')
 887    for (i = 0; i < sizeof(hex) / 2; i++) {
 888       j = i << 1;
 889       hex[j] = hexchar((dig[i] & 0xf0) >> 4);
 890       hex[++j] = hexchar(dig[i] & 0x0f);
 891    }
 892    return !!memcmp("6d7d0a3d949da2e96f2aa010f65d8326", hex, sizeof(hex));
 893 }
 894 !
 895       fi # wantfeat MD5
 896    fi
 897 else
 898    echo '/* WANT_SSL=0 */' >> ${h}
 899 fi # wantfeat SSL
 900
 901 if wantfeat GSSAPI; then
 902    ${cat} > ${tmp2}.c << \!
 903 #include <gssapi/gssapi.h>
 904
 905 int main(void)
 906 {
 907    gss_import_name(0, 0, GSS_C_NT_HOSTBASED_SERVICE, 0);
 908    gss_init_sec_context(0,0,0,0,0,0,0,0,0,0,0,0,0);
 909    return 0;
 910 }
 911 !
 912    ${sed} -e '1s/gssapi\///' < ${tmp2}.c > ${tmp3}.c
 913
 914    if command -v krb5-config >/dev/null 2>&1; then
 915       i=`command -v krb5-config`
 916       GSSAPI_LIBS="`CFLAGS= ${i} --libs gssapi`"
 917       GSSAPI_INCS="`CFLAGS= ${i} --cflags`"
 918       i='for GSSAPI via krb5-config(1)'
 919    else
 920       GSSAPI_LIBS='-lgssapi'
 921       GSSAPI_INCS=
 922       i='for GSSAPI in gssapi/gssapi.h, libgssapi'
 923    fi
 924    < ${tmp2}.c link_check gssapi \
 925          "${i}" '#define HAVE_GSSAPI' \
 926          "${GSSAPI_LIBS}" "${GSSAPI_INCS}" ||\
 927       < ${tmp3}.c link_check gssapi \
 928          'for GSSAPI in gssapi.h, libgssapi' \
 929          '#define HAVE_GSSAPI
 930          #define        GSSAPI_REG_INCLUDE' \
 931          '-lgssapi' ||\
 932       < ${tmp2}.c link_check gssapi 'for GSSAPI in libgssapi_krb5' \
 933          '#define HAVE_GSSAPI' \
 934          '-lgssapi_krb5' ||\
 935       < ${tmp3}.c link_check gssapi \
 936          'for GSSAPI in libgssapi, OpenBSD-style (pre 5.3)' \
 937          '#define HAVE_GSSAPI
 938          #define        GSSAPI_REG_INCLUDE' \
 939          '-lgssapi -lkrb5 -lcrypto' \
 940          '-I/usr/include/kerberosV' ||\
 941       < ${tmp2}.c link_check gssapi 'for GSSAPI in libgss' \
 942          '#define HAVE_GSSAPI' \
 943          '-lgss' ||\
 944       link_check gssapi 'for GSSAPI in libgssapi_krb5, old-style' \
 945          '#define HAVE_GSSAPI
 946          #define GSSAPI_OLD_STYLE' \
 947          '-lgssapi_krb5' << \!
 948 #include <gssapi/gssapi.h>
 949 #include <gssapi/gssapi_generic.h>
 950
 951 int main(void)
 952 {
 953    gss_import_name(0, 0, gss_nt_service_name, 0);
 954    gss_init_sec_context(0,0,0,0,0,0,0,0,0,0,0,0,0);
 955    return 0;
 956 }
 957 !
 958 else
 959    echo '/* WANT_GSSAPI=0 */' >> ${h}
 960 fi # wantfeat GSSAPI
 961
 962 if wantfeat IDNA; then
 963    link_check idna 'for GNU Libidn' '#define HAVE_IDNA' '-lidn' << \!
 964 #include <idna.h>
 965 #include <idn-free.h>
 966 #include <stringprep.h>
 967 int main(void)
 968 {
 969    char *utf8, *idna_ascii, *idna_utf8;
 970    utf8 = stringprep_locale_to_utf8("does.this.work");
 971    if (idna_to_ascii_8z(utf8, &idna_ascii, IDNA_USE_STD3_ASCII_RULES)
 972          != IDNA_SUCCESS)
 973       return 1;
 974    idn_free(idna_ascii);
 975    /* (Rather link check only here) */
 976    idna_utf8 = stringprep_convert(idna_ascii, "UTF-8", "de_DE");
 977    return 0;
 978 }
 979 !
 980 else
 981    echo '/* WANT_IDNA=0 */' >> ${h}
 982 fi
 983
 984 if wantfeat REGEX; then
 985    link_check regex 'for regular expressions' '#define HAVE_REGEX' << \!
 986 #include <regex.h>
 987 #include <stdlib.h>
 988 int main(void)
 989 {
 990    int status;
 991    regex_t re;
 992    if (regcomp(&re, ".*bsd", REG_EXTENDED | REG_ICASE | REG_NOSUB) != 0)
 993       return 1;
 994    status = regexec(&re, "plan9", 0,NULL, 0);
 995    regfree(&re);
 996    return !(status == REG_NOMATCH);
 997 }
 998 !
 999 else
1000    echo '/* WANT_REGEX=0 */' >> ${h}
1001 fi
1002
1003 if wantfeat READLINE; then
1004    __edrdlib() {
1005       link_check readline "for readline(3) (${1})" \
1006          '#define HAVE_READLINE' "${1}" << \!
1007 #include <stdio.h>
1008 #include <readline/history.h>
1009 #include <readline/readline.h>
1010 int main(void)
1011 {
1012    char *rl;
1013    HISTORY_STATE *hs;
1014    HIST_ENTRY **he;
1015    int i;
1016    using_history();
1017    read_history("");
1018    stifle_history(242);
1019    rl = readline("Enter a line:");
1020    if (rl && *rl)
1021       add_history(rl);
1022    write_history("");
1023    rl_extend_line_buffer(10);
1024    rl_point = rl_end = 10;
1025    rl_pre_input_hook = (rl_hook_func_t*)NULL;
1026    rl_forced_update_display();
1027    clear_history();
1028    hs = history_get_history_state();
1029    i = hs->length;
1030    he = history_list();
1031    if (i > 0)
1032       rl = he[0]->line;
1033    rl_free_line_state();
1034    rl_cleanup_after_signal();
1035    rl_reset_after_signal();
1036    return 0;
1037 }
1038 !
1039    }
1040
1041    __edrdlib -lreadline ||
1042       __edrdlib '-lreadline -ltermcap'
1043    [ -n "${have_readline}" ] && WANT_TABEXPAND=1
1044 fi
1045
1046 if wantfeat EDITLINE && [ -z "${have_readline}" ]; then
1047    __edlib() {
1048       link_check editline "for editline(3) (${1})" \
1049          '#define HAVE_EDITLINE' "${1}" << \!
1050 #include <histedit.h>
1051 static char * getprompt(void) { return (char*)"ok"; }
1052 int main(void)
1053 {
1054    EditLine *el_el = el_init("TEST", stdin, stdout, stderr);
1055    HistEvent he;
1056    History *el_hcom = history_init();
1057    history(el_hcom, &he, H_SETSIZE, 242);
1058    el_set(el_el, EL_SIGNAL, 0);
1059    el_set(el_el, EL_TERMINAL, NULL);
1060    el_set(el_el, EL_HIST, &history, el_hcom);
1061    el_set(el_el, EL_EDITOR, "emacs");
1062    el_set(el_el, EL_PROMPT, &getprompt);
1063    el_source(el_el, NULL);
1064    history(el_hcom, &he, H_GETSIZE);
1065    history(el_hcom, &he, H_CLEAR);
1066    el_end(el_el);
1067    /* TODO add loader and addfn checks */
1068    history_end(el_hcom);
1069    return 0;
1070 }
1071 !
1072    }
1073
1074    __edlib -ledit ||
1075       __edlib '-ledit -ltermcap'
1076    [ -n "${have_editline}" ] && WANT_TABEXPAND=0
1077 fi
1078
1079 if wantfeat NCL && [ -z "${have_editline}" ] && [ -z "${have_readline}" ] &&\
1080       [ -n "${have_c90amend1}" ]; then
1081    have_ncl=1
1082    echo '#define HAVE_NCL' >> ${h}
1083 else
1084    echo '/* WANT_{READLINE,EDITLINE,NCL}=0 */' >> ${h}
1085 fi
1086
1087 # Generic have-a-command-line-editor switch for those who need it below
1088 if [ -n "${have_ncl}" ] || [ -n "${have_editline}" ] ||\
1089       [ -n "${have_readline}" ]; then
1090    have_cle=1
1091 fi
1092
1093 if [ -n "${have_cle}" ] && wantfeat TABEXPAND; then
1094    echo '#define HAVE_TABEXPAND' >> ${h}
1095 else
1096    echo '/* WANT_TABEXPAND=0 */' >> ${h}
1097 fi
1098
1099 if [ -n "${have_cle}" ] && wantfeat HISTORY; then
1100    echo '#define HAVE_HISTORY' >> ${h}
1101 else
1102    echo '/* WANT_HISTORY=0 */' >> ${h}
1103 fi
1104
1105 if wantfeat SPAM; then
1106    echo '#define HAVE_SPAM' >> ${h}
1107    if command -v spamc >/dev/null 2>&1; then
1108       echo "#define SPAMC_PATH \"`command -v spamc`\"" >> ${h}
1109    fi
1110 else
1111    echo '/* WANT_SPAM=0 */' >> ${h}
1112 fi
1113
1114 if wantfeat DOCSTRINGS; then
1115    echo '#define HAVE_DOCSTRINGS' >> ${h}
1116 else
1117    echo '/* WANT_DOCSTRINGS=0 */' >> ${h}
1118 fi
1119
1120 if wantfeat QUOTE_FOLD &&\
1121       [ -n "${have_c90amend1}" ] && [ -n "${have_wcwidth}" ]; then
1122    echo '#define HAVE_QUOTE_FOLD' >> ${h}
1123 else
1124    echo '/* WANT_QUOTE_FOLD=0 */' >> ${h}
1125 fi
1126
1127 if wantfeat COLOUR; then
1128    echo '#define HAVE_COLOUR' >> ${h}
1129 else
1130    echo '/* WANT_COLOUR=0 */' >> ${h}
1131 fi
1132
1133 if wantfeat IMAP_SEARCH; then
1134    echo '#define HAVE_IMAP_SEARCH' >> ${h}
1135 else
1136    echo '/* WANT_IMAP_SEARCH=0 */' >> ${h}
1137 fi
1138
1139 if wantfeat MD5; then
1140    echo '#define HAVE_MD5' >> ${h}
1141 else
1142    echo '/* WANT_MD5=0 */' >> ${h}
1143 fi
1144
1145 ## Summarizing ##
1146
1147 # Since we cat(1) the content of those to cc/"ld", convert them to single line
1148 squeeze_em() {
1149    < "${1}" > "${2}" ${awk} \
1150    'BEGIN {ORS = " "} /^[^#]/ {print} {next} END {ORS = ""; print "\n"}'
1151 }
1152 ${rm} -f ${tmp}
1153 squeeze_em ${inc} ${tmp}
1154 ${mv} ${tmp} ${inc}
1155 squeeze_em ${lib} ${tmp}
1156 ${mv} ${tmp} ${lib}
1157
1158 # config.h
1159 ${mv} ${h} ${tmp}
1160 printf '#ifndef _CONFIG_H\n# define _CONFIG_H\n' > ${h}
1161 ${cat} ${tmp} >> ${h}
1162
1163 printf '\n/* The "feature string", for "simplicity" and lex.c */\n' >> ${h}
1164 printf '#ifdef _MAIN_SOURCE\n' >> ${h}
1165 printf '# ifdef HAVE_AMALGAMATION\nstatic\n# endif\n' >> ${h}
1166 printf 'char const features[] = "MIME"\n' >> ${h}
1167 printf '# ifdef HAVE_DOCSTRINGS\n   ",DOCSTRINGS"\n# endif\n' >> ${h}
1168 printf '# ifdef HAVE_ICONV\n   ",ICONV"\n# endif\n' >> ${h}
1169 printf '# ifdef HAVE_SETLOCALE\n   ",LOCALES"\n# endif\n' >> ${h}
1170 printf '# ifdef HAVE_C90AMEND1\n   ",MULTIBYTE CHARSETS"\n# endif\n' >> ${h}
1171 printf '# ifdef HAVE_NL_LANGINFO\n   ",TERMINAL CHARSET"\n# endif\n' >> ${h}
1172 printf '# ifdef HAVE_SOCKETS\n   ",NETWORK"\n# endif\n' >> ${h}
1173 printf '# ifdef HAVE_IPV6\n   ",IPv6"\n# endif\n' >> ${h}
1174 printf '# ifdef HAVE_SSL\n   ",S/MIME,SSL/TLS"\n# endif\n' >> ${h}
1175 printf '# ifdef HAVE_IMAP\n   ",IMAP"\n# endif\n' >> ${h}
1176 printf '# ifdef HAVE_GSSAPI\n   ",GSSAPI"\n# endif\n' >> ${h}
1177 printf '# ifdef HAVE_POP3\n   ",POP3"\n# endif\n' >> ${h}
1178 printf '# ifdef HAVE_SMTP\n   ",SMTP"\n# endif\n' >> ${h}
1179 printf '# ifdef HAVE_SPAM\n   ",SPAM"\n# endif\n' >> ${h}
1180 printf '# ifdef HAVE_IDNA\n   ",IDNA"\n# endif\n' >> ${h}
1181 printf '# ifdef HAVE_IMAP_SEARCH\n   ",IMAP-searches"\n# endif\n' >> ${h}
1182 printf '# ifdef HAVE_REGEX\n   ",REGEX"\n# endif\n' >> ${h}
1183 printf '# ifdef HAVE_READLINE\n   ",READLINE"\n# endif\n' >> ${h}
1184 printf '# ifdef HAVE_EDITLINE\n   ",EDITLINE"\n# endif\n' >> ${h}
1185 printf '# ifdef HAVE_NCL\n   ",NCL"\n# endif\n' >> ${h}
1186 printf '# ifdef HAVE_TABEXPAND\n   ",TABEXPAND"\n# endif\n' >> ${h}
1187 printf '# ifdef HAVE_HISTORY\n   ",HISTORY MANAGEMENT"\n# endif\n' >> ${h}
1188 printf '# ifdef HAVE_QUOTE_FOLD\n   ",QUOTE-FOLD"\n# endif\n' >> ${h}
1189 printf '# ifdef HAVE_COLOUR\n   ",COLOUR"\n# endif\n' >> ${h}
1190 printf '# ifdef HAVE_DEBUG\n   ",DEBUG"\n# endif\n' >> ${h}
1191 printf ';\n#endif /* _MAIN_SOURCE */\n' >> ${h}
1192
1193 printf '#endif /* _CONFIG_H */\n' >> ${h}
1194 ${rm} -f ${tmp}
1195
1196 # Create the real mk.mk
1197 ${rm} -rf ${tmp0}.* ${tmp0}*
1198 printf 'OBJ_SRC = ' >> ${mk}
1199 if nwantfeat AMALGAMATION; then
1200    echo *.c >> ${mk}
1201    echo 'OBJ_DEP =' >> ${mk}
1202 else
1203    j=`echo "${src}" | sed 's/^.\///'`
1204    echo "${j}" >> ${mk}
1205    printf 'OBJ_DEP = main.c ' >> ${mk}
1206    printf '#define _MAIN_SOURCE\n' >> ${src}
1207    printf '#include "nail.h"\n#include "main.c"\n' >> ${src}
1208    for i in *.c; do
1209       if [ "${i}" = "${j}" ] || [ "${i}" = main.c ]; then
1210          continue
1211       fi
1212       printf "${i} " >> ${mk}
1213       printf "#include \"${i}\"\n" >> ${src}
1214    done
1215    echo >> ${mk}
1216 fi
1217
1218 echo "LIBS = `${cat} ${lib}`" >> ${mk}
1219 echo "INCLUDES = `${cat} ${inc}`" >> ${mk}
1220 echo >> ${mk}
1221 ${cat} ./mk-mk.in >> ${mk}
1222
1223 ## Finished! ##
1224
1225 ${cat} > ${tmp2}.c << \!
1226 #include "config.h"
1227 #ifdef HAVE_NL_LANGINFO
1228 # include <langinfo.h>
1229 #endif
1230 :
1231 :The following optional features are enabled:
1232 #ifdef HAVE_ICONV
1233 : + Character set conversion using iconv()
1234 #endif
1235 #ifdef HAVE_SETLOCALE
1236 : + Locale support: Printable characters depend on the environment
1237 # ifdef HAVE_C90AMEND1
1238 : + Multibyte character support
1239 # endif
1240 # ifdef HAVE_NL_LANGINFO
1241 : + Automatic detection of terminal character set
1242 # endif
1243 #endif
1244 #ifdef HAVE_SOCKETS
1245 : + Network support
1246 #endif
1247 #ifdef HAVE_IPV6
1248 : + Support for Internet Protocol v6 (IPv6)
1249 #endif
1250 #ifdef HAVE_SSL
1251 # ifdef HAVE_OPENSSL
1252 : + S/MIME and SSL/TLS using OpenSSL
1253 # endif
1254 #endif
1255 #ifdef HAVE_IMAP
1256 : + IMAP protocol
1257 #endif
1258 #ifdef HAVE_GSSAPI
1259 : + IMAP GSSAPI authentication
1260 #endif
1261 #ifdef HAVE_POP3
1262 : + POP3 protocol
1263 #endif
1264 #ifdef HAVE_SMTP
1265 : + SMTP protocol
1266 #endif
1267 #ifdef HAVE_SPAM
1268 : + Interaction with spam filters
1269 #endif
1270 #ifdef HAVE_IDNA
1271 : + IDNA (internationalized domain names for applications) support
1272 #endif
1273 #ifdef HAVE_IMAP_SEARCH
1274 : + IMAP-style search expressions
1275 #endif
1276 #ifdef HAVE_REGEX
1277 : + Regular expression searches
1278 #endif
1279 #if defined HAVE_READLINE || defined HAVE_EDITLINE || defined HAVE_NCL
1280 : + Command line editing
1281 # ifdef HAVE_TABEXPAND
1282 : + + Tabulator expansion
1283 # endif
1284 # ifdef HAVE_HISTORY
1285 : + + History management
1286 # endif
1287 #endif
1288 #ifdef HAVE_QUOTE_FOLD
1289 : + Extended *quote-fold*ing
1290 #endif
1291 #ifdef HAVE_COLOUR
1292 : + Coloured message display (simple)
1293 #endif
1294 :
1295 :The following optional features are disabled:
1296 #ifndef HAVE_ICONV
1297 : - Character set conversion using iconv()
1298 #endif
1299 #ifndef HAVE_SETLOCALE
1300 : - Locale support: Only ASCII characters are recognized
1301 #endif
1302 # ifndef HAVE_C90AMEND1
1303 : - Multibyte character support
1304 # endif
1305 # ifndef HAVE_NL_LANGINFO
1306 : - Automatic detection of terminal character set
1307 # endif
1308 #ifndef HAVE_SOCKETS
1309 : - Network support
1310 #endif
1311 #ifndef HAVE_IPV6
1312 : - Support for Internet Protocol v6 (IPv6)
1313 #endif
1314 #if !defined HAVE_SSL
1315 : - SSL/TLS (network transport authentication and encryption)
1316 #endif
1317 #ifndef HAVE_IMAP
1318 : - IMAP protocol
1319 #endif
1320 #ifndef HAVE_GSSAPI
1321 : - IMAP GSSAPI authentication
1322 #endif
1323 #ifndef HAVE_POP3
1324 : - POP3 protocol
1325 #endif
1326 #ifndef HAVE_SMTP
1327 : - SMTP protocol
1328 #endif
1329 #ifndef HAVE_SPAM
1330 : - Interaction with spam filters
1331 #endif
1332 #ifndef HAVE_IDNA
1333 : - IDNA (internationalized domain names for applications) support
1334 #endif
1335 #ifndef HAVE_IMAP_SEARCH
1336 : - IMAP-style search expressions
1337 #endif
1338 #ifndef HAVE_REGEX
1339 : - Regular expression searches
1340 #endif
1341 #if !defined HAVE_READLINE && !defined HAVE_EDITLINE && !defined HAVE_NCL
1342 : - Command line editing and history
1343 #endif
1344 #ifndef HAVE_QUOTE_FOLD
1345 : - Extended *quote-fold*ing
1346 #endif
1347 #ifndef HAVE_COLOUR
1348 : - Coloured message display (simple)
1349 #endif
1350 :
1351 :Remarks:
1352 #ifndef HAVE_SNPRINTF
1353 : . The function snprintf() could not be found. mailx will be compiled to use
1354 : sprintf() instead. This might overflow buffers if input values are larger
1355 : than expected. Use the resulting binary with care or update your system
1356 : environment and start the configuration process again.
1357 #endif
1358 #ifndef HAVE_FCHDIR
1359 : . The function fchdir() could not be found. mailx will be compiled to use
1360 : chdir() instead. This is not a problem unless the current working
1361 : directory of mailx is moved while the IMAP cache is used.
1362 #endif
1363 #ifndef HAVE_GETOPT
1364 : . Using a minimal builtin POSIX-like getopt()
1365 #endif
1366 #ifdef HAVE_DEBUG
1367 : . Debug enabled binary: not meant to be used by end-users: THANKS!
1368 #endif
1369 :
1370 !
1371
1372 ${make} -f ${makefile} ${tmp2}.x
1373 < ${tmp2}.x >&5 ${sed} -e '/^[^:]/d; /^$/d; s/^://'
1374
1375 # vim:set fenc=utf-8:s-it-mode