configure

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2014 Ingo Schwarze <schwarze@openbsd.org>
   4 #
   5 # Permission to use, copy, modify, and distribute this software for any
   6 # purpose with or without fee is hereby granted, provided that the above
   7 # copyright notice and this permission notice appear in all copies.
   8 #
   9 # THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  10 # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  11 # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  12 # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  13 # WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  14 # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  15 # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  16
  17 set -e
  18
  19 [ -e config.log ] && mv config.log config.log.old
  20 [ -e config.h   ] && mv config.h config.h.old
  21
  22 # Output file descriptor usage:
  23 # 1 (stdout): config.h, Makefile.local
  24 # 2 (stderr): original stderr, usually to the console
  25 # 3: config.log
  26
  27 exec 3> config.log
  28 echo "config.log: writing..."
  29
  30 # --- default settings -------------------------------------------------
  31 # Initialize all variables here,
  32 # such that nothing can leak in from the environment.
  33
  34 VERSION="1.13.1"
  35 echo "VERSION=\"${VERSION}\"" 1>&2
  36 echo "VERSION=\"${VERSION}\"" 1>&3
  37
  38 OSNAME=
  39
  40 CC=`printf "all:\\n\\t@echo \\\$(CC)\\n" | make -f -`
  41 CFLAGS="-g -W -Wall -Wstrict-prototypes -Wno-unused-parameter -Wwrite-strings"
  42 DBLIB=
  43 STATIC="-static"
  44
  45 BUILD_DB=1
  46 BUILD_CGI=0
  47
  48 HAVE_DIRENT_NAMLEN=
  49 HAVE_FGETLN=
  50 HAVE_FTS=
  51 HAVE_GETSUBOPT=
  52 HAVE_MMAP=
  53 HAVE_REALLOCARRAY=
  54 HAVE_STRCASESTR=
  55 HAVE_STRLCAT=
  56 HAVE_STRLCPY=
  57 HAVE_STRPTIME=
  58 HAVE_STRSEP=
  59 HAVE_WCHAR=
  60
  61 HAVE_SQLITE3=
  62 HAVE_SQLITE3_ERRSTR=
  63 HAVE_OHASH=
  64 HAVE_MANPATH=
  65
  66 PREFIX="/usr/local"
  67 BINDIR=
  68 SBINDIR=
  69 INCLUDEDIR=
  70 LIBDIR=
  71 MANDIR=
  72 EXAMPLEDIR=
  73
  74 WWWPREFIX="/var/www"
  75 HTDOCDIR=
  76 CGIBINDIR=
  77
  78 INSTALL="install"
  79 INSTALL_PROGRAM=
  80 INSTALL_LIB=
  81 INSTALL_MAN=
  82 INSTALL_DATA=
  83
  84 # --- manual settings from configure.local -----------------------------
  85
  86 if [ -e ./configure.local ]; then
  87         echo "configure.local: reading..." 1>&2
  88         echo "configure.local: reading..." 1>&3
  89         cat ./configure.local 1>&3
  90         . ./configure.local
  91 else
  92         echo "configure.local: no (fully automatic configuration)" 1>&2
  93         echo "configure.local: no (fully automatic configuration)" 1>&3
  94 fi
  95 echo 1>&3
  96
  97 # --- tests for config.h  ----------------------------------------------
  98
  99 COMP="${CC} ${CFLAGS} -Wno-unused -Werror"
 100
 101 # Check whether this HAVE_ setting is manually overridden.
 102 # If yes, use the override, if no, do not decide anything yet.
 103 # Arguments: lower-case test name, manual value
 104 ismanual() {
 105         [ -z "${2}" ] && return 1
 106         echo "${1}: manual (${2})" 1>&2
 107         echo "${1}: manual (${2})" 1>&3
 108         echo 1>&3
 109         return 0
 110 }
 111
 112 # Run a single autoconfiguration test.
 113 # In case of success, enable the feature.
 114 # In case of failure, do not decide anything yet.
 115 # Arguments: lower-case test name, upper-case test name, additional CFLAGS
 116 singletest() {
 117         cat 1>&3 << __HEREDOC__
 118 ${1}: testing...
 119 ${COMP} ${3} -o test-${1} test-${1}.c
 120 __HEREDOC__
 121
 122         if ${COMP} ${3} -o "test-${1}" "test-${1}.c" 1>&3 2>&3; then
 123                 echo "${1}: ${CC} succeeded" 1>&3
 124         else
 125                 echo "${1}: ${CC} failed with $?" 1>&3
 126                 echo 1>&3
 127                 return 1
 128         fi
 129
 130         if ./test-${1} 1>&3 2>&3; then
 131                 echo "${1}: yes" 1>&2
 132                 echo "${1}: yes" 1>&3
 133                 echo 1>&3
 134                 eval HAVE_${2}=1
 135                 rm "test-${1}"
 136                 return 0
 137         else
 138                 echo "${1}: execution failed with $?" 1>&3
 139                 echo 1>&3
 140                 rm "test-${1}"
 141                 return 1
 142         fi
 143 }
 144
 145 # Run a complete autoconfiguration test, including the check for
 146 # a manual override and disabling the feature on failure.
 147 # Arguments: lower case name, upper case name, additional CFLAGS
 148 runtest() {
 149         eval _manual=\${HAVE_${2}}
 150         ismanual "${1}" "${_manual}" && return 0
 151         singletest "${1}" "${2}" "${3}" && return 0
 152         echo "${1}: no" 1>&2
 153         eval HAVE_${2}=0
 154         return 1
 155 }
 156
 157 # --- library functions ---
 158 runtest dirent-namlen   DIRENT_NAMLEN   || true
 159 runtest fgetln          FGETLN          || true
 160 runtest fts             FTS             || true
 161 runtest getsubopt       GETSUBOPT       || true
 162 runtest mmap            MMAP            || true
 163 runtest reallocarray    REALLOCARRAY    || true
 164 runtest strcasestr      STRCASESTR      || true
 165 runtest strlcat         STRLCAT         || true
 166 runtest strlcpy         STRLCPY         || true
 167 runtest strptime        STRPTIME        || true
 168 runtest strsep          STRSEP          || true
 169 runtest wchar           WCHAR           || true
 170
 171 # --- sqlite3 ---
 172 DETECTLIB=
 173 if [ ${BUILD_DB} -eq 0 ]; then
 174         echo "BUILD_DB=0 (manual)" 1>&2
 175         echo "BUILD_DB=0 (manual)" 1>&3
 176         echo 1>&3
 177         HAVE_SQLITE3=0
 178 elif ismanual sqlite3 "${HAVE_SQLITE3}"; then
 179         DETECTLIB="-lsqlite3"
 180 elif [ -n "${DBLIB}" ]; then
 181         runtest sqlite3 SQLITE3 "${DBLIB}" || true
 182 elif singletest sqlite3 SQLITE3 "-lsqlite3"; then
 183         DETECTLIB="-lsqlite3"
 184 elif runtest sqlite3 SQLITE3 \
 185                 "-I/usr/local/include -L/usr/local/lib -lsqlite3"; then
 186         DETECTLIB="-L/usr/local/lib -lsqlite3"
 187         CFLAGS="${CFLAGS} -I/usr/local/include"
 188 fi
 189 if [ ${BUILD_DB} -gt 0 -a ${HAVE_SQLITE3} -eq 0 ]; then
 190         echo "BUILD_DB=0 (no sqlite3)" 1>&2
 191         echo "BUILD_DB=0 (no sqlite3)" 1>&3
 192         echo 1>&3
 193         BUILD_DB=0
 194 fi
 195
 196 # --- sqlite3_errstr ---
 197 if [ ${BUILD_DB} -eq 0 ]; then
 198         HAVE_SQLITE3_ERRSTR=1
 199 elif ismanual sqlite3_errstr "${HAVE_SQLITE3_ERRSTR}"; then
 200         :
 201 elif [ -n "${DBLIB}" ]; then
 202         runtest sqlite3_errstr SQLITE3_ERRSTR "${DBLIB}" || true
 203 else
 204         runtest sqlite3_errstr SQLITE3_ERRSTR "${DETECTLIB}" || true
 205 fi
 206
 207 # --- ohash ---
 208 if [ ${BUILD_DB} -eq 0 ]; then
 209         HAVE_OHASH=1
 210 elif ismanual ohash "${HAVE_OHASH}"; then
 211         :
 212 elif [ -n "${DBLIB}" ]; then
 213         runtest ohash OHASH "${DBLIB}" || true
 214 elif singletest ohash OHASH; then
 215         :
 216 elif runtest ohash OHASH "-lutil"; then
 217         DETECTLIB="${DETECTLIB} -lutil"
 218 fi
 219
 220 # --- DBLIB ---
 221 if [ ${BUILD_DB} -eq 0 ]; then
 222         DBLIB=
 223 elif [ -z "${DBLIB}" ]; then
 224         DBLIB="${DETECTLIB}"
 225         echo "DBLIB=\"${DBLIB}\"" 1>&2
 226         echo "DBLIB=\"${DBLIB}\"" 1>&3
 227         echo 1>&3
 228 fi
 229
 230 # --- manpath ---
 231 if [ ${BUILD_DB} -eq 0 ]; then
 232         HAVE_MANPATH=0
 233 elif ismanual manpath "${HAVE_MANPATH}"; then
 234         :
 235 elif manpath 1>&3 2>&3; then
 236         echo "manpath: yes" 1>&2
 237         echo "manpath: yes" 1>&3
 238         echo 1>&3
 239         HAVE_MANPATH=1
 240 else
 241         echo "manpath: no" 1>&2
 242         echo "manpath: no" 1>&3
 243         echo 1>&3
 244         HAVE_MANPATH=0
 245 fi
 246
 247 # --- write config.h ---
 248
 249 exec > config.h
 250
 251 cat << __HEREDOC__
 252 #ifndef MANDOC_CONFIG_H
 253 #define MANDOC_CONFIG_H
 254
 255 #if defined(__linux__) || defined(__MINT__)
 256 #define _GNU_SOURCE /* getsubopt(), strcasestr(), strptime() */
 257 #endif
 258
 259 __HEREDOC__
 260
 261 [ ${HAVE_FGETLN} -eq 0 -o ${HAVE_REALLOCARRAY} -eq 0 -o \
 262   ${HAVE_STRLCAT} -eq 0 -o ${HAVE_STRLCPY} -eq 0 ] \
 263         && echo "#include <sys/types.h>"
 264 [ ${HAVE_FGETLN} -eq 0 ] && echo "#include <stdio.h>"
 265
 266 echo
 267 echo "#define VERSION \"${VERSION}\""
 268 [ -n "${OSNAME}" ] && echo "#define OSNAME \"${OSNAME}\""
 269
 270 cat << __HEREDOC__
 271 #define HAVE_DIRENT_NAMLEN ${HAVE_DIRENT_NAMLEN}
 272 #define HAVE_FGETLN ${HAVE_FGETLN}
 273 #define HAVE_FTS ${HAVE_FTS}
 274 #define HAVE_GETSUBOPT ${HAVE_GETSUBOPT}
 275 #define HAVE_MMAP ${HAVE_MMAP}
 276 #define HAVE_REALLOCARRAY ${HAVE_REALLOCARRAY}
 277 #define HAVE_STRCASESTR ${HAVE_STRCASESTR}
 278 #define HAVE_STRLCAT ${HAVE_STRLCAT}
 279 #define HAVE_STRLCPY ${HAVE_STRLCPY}
 280 #define HAVE_STRPTIME ${HAVE_STRPTIME}
 281 #define HAVE_STRSEP ${HAVE_STRSEP}
 282 #define HAVE_WCHAR ${HAVE_WCHAR}
 283 #define HAVE_SQLITE3 ${HAVE_SQLITE3}
 284 #define HAVE_SQLITE3_ERRSTR ${HAVE_SQLITE3_ERRSTR}
 285 #define HAVE_OHASH ${HAVE_OHASH}
 286 #define HAVE_MANPATH ${HAVE_MANPATH}
 287
 288 #if !defined(__BEGIN_DECLS)
 289 #  ifdef __cplusplus
 290 #  define       __BEGIN_DECLS           extern "C" {
 291 #  else
 292 #  define       __BEGIN_DECLS
 293 #  endif
 294 #endif
 295 #if !defined(__END_DECLS)
 296 #  ifdef __cplusplus
 297 #  define       __END_DECLS             }
 298 #  else
 299 #  define       __END_DECLS
 300 #  endif
 301 #endif
 302
 303 __HEREDOC__
 304
 305 [ ${HAVE_FGETLN} -eq 0 ] && \
 306         echo "extern    char     *fgetln(FILE *, size_t *);"
 307
 308 if [ ${HAVE_GETSUBOPT} -eq 0 ]; then
 309         echo "extern    int       getsubopt(char **, char * const *, char **);"
 310         echo "extern    char     *suboptarg;"
 311 fi
 312
 313 [ ${HAVE_REALLOCARRAY} -eq 0 ] && \
 314         echo "extern    void     *reallocarray(void *, size_t, size_t);"
 315
 316 [ ${BUILD_DB} -gt 0 -a ${HAVE_SQLITE3_ERRSTR} -eq 0 ] &&
 317         echo "extern    const char *sqlite3_errstr(int);"
 318
 319 [ ${HAVE_STRCASESTR} -eq 0 ] && \
 320         echo "extern    char     *strcasestr(const char *, const char *);"
 321
 322 [ ${HAVE_STRLCAT} -eq 0 ] && \
 323         echo "extern    size_t    strlcat(char *, const char *, size_t);"
 324
 325 [ ${HAVE_STRLCPY} -eq 0 ] && \
 326         echo "extern    size_t    strlcpy(char *, const char *, size_t);"
 327
 328 [ ${HAVE_STRSEP} -eq 0 ] && \
 329         echo "extern    char     *strsep(char **, const char *);"
 330
 331 echo
 332 echo "#endif /* MANDOC_CONFIG_H */"
 333
 334 echo "config.h: written" 1>&2
 335 echo "config.h: written" 1>&3
 336
 337 # --- tests for Makefile.local -----------------------------------------
 338
 339 exec > Makefile.local
 340
 341 [ -z "${BINDIR}"     ] && BINDIR="${PREFIX}/bin"
 342 [ -z "${SBINDIR}"    ] && SBINDIR="${PREFIX}/sbin"
 343 [ -z "${INCLUDEDIR}" ] && INCLUDEDIR="${PREFIX}/include/mandoc"
 344 [ -z "${LIBDIR}"     ] && LIBDIR="${PREFIX}/lib/mandoc"
 345 [ -z "${MANDIR}"     ] && MANDIR="${PREFIX}/man"
 346 [ -z "${EXAMPLEDIR}" ] && EXAMPLEDIR="${PREFIX}/share/examples/mandoc"
 347
 348 [ -z "${HTDOCDIR}"   ] && HTDOCDIR="${WWWPREFIX}/htdocs"
 349 [ -z "${CGIBINDIR}"  ] && CGIBINDIR="${WWWPREFIX}/cgi-bin"
 350
 351 [ -z "${INSTALL_PROGRAM}" ] && INSTALL_PROGRAM="${INSTALL} -m 0555"
 352 [ -z "${INSTALL_LIB}"     ] && INSTALL_LIB="${INSTALL} -m 0444"
 353 [ -z "${INSTALL_MAN}"     ] && INSTALL_MAN="${INSTALL} -m 0444"
 354 [ -z "${INSTALL_DATA}"    ] && INSTALL_DATA="${INSTALL} -m 0444"
 355
 356 if [ ${BUILD_DB} -eq 0 -a ${BUILD_CGI} -gt 0 ]; then
 357         echo "BUILD_CGI=0 (no BUILD_DB)" 1>&2
 358         echo "BUILD_CGI=0 (no BUILD_DB)" 1>&3
 359         BUILD_CGI=0
 360 fi
 361
 362 BUILD_TARGETS="base-build"
 363 [ ${BUILD_DB}  -gt 0 ] && BUILD_TARGETS="${BUILD_TARGETS} db-build"
 364 [ ${BUILD_CGI} -gt 0 ] && BUILD_TARGETS="${BUILD_TARGETS} cgi-build"
 365
 366 cat << __HEREDOC__
 367 VERSION         = ${VERSION}
 368 BUILD_TARGETS   = ${BUILD_TARGETS}
 369 CFLAGS          = ${CFLAGS}
 370 DBLIB           = ${DBLIB}
 371 STATIC          = ${STATIC}
 372 PREFIX          = ${PREFIX}
 373 BINDIR          = ${BINDIR}
 374 SBINDIR         = ${SBINDIR}
 375 INCLUDEDIR      = ${INCLUDEDIR}
 376 LIBDIR          = ${LIBDIR}
 377 MANDIR          = ${MANDIR}
 378 EXAMPLEDIR      = ${EXAMPLEDIR}
 379 WWWPREFIX       = ${WWWPREFIX}
 380 HTDOCDIR        = ${HTDOCDIR}
 381 CGIBINDIR       = ${CGIBINDIR}
 382 INSTALL         = ${INSTALL}
 383 INSTALL_PROGRAM = ${INSTALL_PROGRAM}
 384 INSTALL_LIB     = ${INSTALL_LIB}
 385 INSTALL_MAN     = ${INSTALL_MAN}
 386 INSTALL_DATA    = ${INSTALL_DATA}
 387 __HEREDOC__
 388
 389 [ ${BUILD_DB} -gt 0 ] && \
 390         echo "MAN_OBJS  = \$(MANDOC_OBJS) \$(APROPOS_OBJS)"
 391
 392 echo "Makefile.local: written" 1>&2
 393 echo "Makefile.local: written" 1>&3
 394
 395 exit 0