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