libcitadel/configure.in

   1 dnl   configuration script for libcitadel
   2 dnl   Process this file with autoconf to produce a configure script.
   3 dnl
   4
   5 dnl Ensure that libcitadel is configured with autoconf 2.52 or newer
   6 AC_PREREQ(2.52)
   7
   8 AC_INIT(libcitadel, 3.8.13, http://uncensored.citadel.org)
   9
  10 AC_CONFIG_SRCDIR(Makefile.in)
  11 AC_CONFIG_AUX_DIR(conftools)
  12 AC_CONFIG_SRCDIR(tests/Makefile.in)
  13 m4_include([m4/local.m4])
  14
  15 dnl
  16 dnl Increment LIBREVISION if source code has changed at all
  17 dnl
  18 dnl If the API has changed, increment LIBCURRENT and set LIBREVISION to 0
  19 dnl
  20 dnl If the API changes compatibly (i.e. simply adding a new function
  21 dnl without changing or removing earlier interfaces), then increment LIBAGE.
  22 dnl
  23 dnl If the API changes incompatibly set LIBAGE back to 0
  24 dnl
  25
  26 LIBCURRENT=3
  27 LIBREVISION=813
  28 LIBAGE=0
  29
  30 sinclude(conftools/libtool.m4)
  31 sinclude(conftools/ac_c_bigendian_cross.m4)
  32
  33 AC_PROG_LIBTOOL
  34
  35 AC_SUBST(LIBCURRENT)
  36 AC_SUBST(LIBREVISION)
  37 AC_SUBST(LIBAGE)
  38
  39 dnl Checks for programs.
  40 AC_PROG_CC
  41 AC_PROG_INSTALL
  42
  43 if test "$GCC" = yes ; then
  44     dnl
  45     dnl Be careful about adding the -fexceptions option; some versions of
  46     dnl GCC don't support it and it causes extra warnings that are only
  47     dnl distracting; avoid.
  48     dnl
  49     OLDCFLAGS="$CFLAGS -Wall -Wmissing-prototypes -Wstrict-prototypes"
  50     CFLAGS="$OLDCFLAGS -fexceptions"
  51     AC_MSG_CHECKING(whether $CC accepts -fexceptions)
  52     AC_TRY_LINK( , ,
  53                    AC_MSG_RESULT(yes),
  54                    AC_MSG_RESULT(no); CFLAGS="$OLDCFLAGS")
  55     CXXFLAGS=`echo "$CFLAGS" | sed 's/ -Wmissing-prototypes -Wstrict-prototypes//'`
  56 fi
  57
  58 dnl Checks for header files.
  59 AC_HEADER_STDC
  60
  61 AC_CHECK_HEADER(sys/mman.h, [CFLAGS="$CFLAGS -D HAVE_MMAP"])
  62 AC_ARG_WITH(with_zlib,    [  --with-zlib             use zlib compression if present])
  63 dnl Checks for the zlib compression library.
  64 if test "x$with_zlib" != xno ; then
  65         AC_CHECK_HEADERS(zlib.h,
  66                 [AC_CHECK_LIB(z, zlibVersion,
  67                         [ok_zlib=yes],,
  68         )])
  69 fi
  70
  71 if test "x$ok_zlib" = xyes ; then
  72         LIBS="-lz $LIBS"
  73         AC_DEFINE(HAVE_ZLIB,[],[whether we have zlib])
  74 fi
  75
  76 AC_CHECK_HEADER(CUnit/CUnit.h, [AC_DEFINE(ENABLE_TESTS, [], [whether we should compile the test-suite])])
  77
  78 AC_CHECK_HEADER(sys/sendfile.h, [AC_DEFINE(LINUX_SENDFILE, [], [whether we have the linux sendfile api])])
  79 dnl TODO: we might need to check for the actual syntax....
  80
  81
  82 AC_MSG_CHECKING([whether your system knows about splice()])
  83 AC_TRY_COMPILE([
  84 #define _GNU_SOURCE
  85 #include <unistd.h>
  86 #include <fcntl.h>
  87 ],
  88 [
  89         ssize_t sent, pipesize;
  90         int fd, SplicePipe[2];
  91         pipesize = splice(fd, NULL,
  92                           SplicePipe[1], NULL,
  93                           1,
  94                           SPLICE_F_MORE | SPLICE_F_MOVE|SPLICE_F_NONBLOCK);
  95 ],
  96                 [
  97                   ok_splice=yes
  98                   AC_DEFINE(LINUX_SPLICE, [], [whether we have the linux splice api])
  99                   AC_MSG_RESULT([yes])
 100                 ],
 101                 [
 102                   ok_splice=no
 103                   AC_MSG_RESULT([no])
 104                 ]
 105 )
 106
 107 AC_MSG_CHECKING([whether your system likes memcpy + HKEY])
 108 AC_TRY_COMPILE([
 109 #define _GNU_SOURCE
 110 #include <ctype.h>
 111 #include <errno.h>
 112 #include <string.h>
 113 #include <unistd.h>
 114 #include <string.h>
 115 #include <stdio.h>
 116 #include <sys/select.h>
 117 #include <fcntl.h>
 118 #include <sys/types.h>
 119
 120 #include "lib/libcitadel.h"
 121 ],
 122 [
 123         char foo[22];
 124         memcpy(foo, HKEY("foo"));
 125
 126 ],
 127                 [
 128
 129                   AC_MSG_RESULT([yes])
 130                 ],
 131                 [
 132                   AC_DEFINE(UNDEF_MEMCPY, [], [whether we need to undefine memcpy])
 133                   AC_MSG_RESULT([no])
 134                 ]
 135 )
 136
 137
 138 AC_CHECK_HEADERS(iconv.h)
 139
 140
 141 dnl Here is the check for a libc integrated iconv
 142 AC_ARG_ENABLE(iconv,
 143         [  --disable-iconv         do not use iconv charset conversion],
 144         ok_iconv=no, ok_iconv=yes)
 145
 146 AC_MSG_CHECKING(Checking to see if your system supports iconv)
 147 AC_TRY_RUN([
 148         #include <iconv.h>
 149         main() {
 150                 iconv_t ic = (iconv_t)(-1) ;
 151                 ic = iconv_open("UTF-8", "us-ascii");
 152                 iconv_close(ic);
 153                 exit(0);
 154         }
 155  ],
 156                 [
 157                   ok_iconv=yes
 158                   AC_MSG_RESULT([yes])
 159                 ],
 160                 [
 161                   ok_iconv=no
 162                   AC_MSG_RESULT([no])
 163                 ]
 164 )
 165
 166 dnl Check for iconv in external libiconv
 167 if test "$ok_iconv" = no; then
 168         AC_MSG_CHECKING(Checking for an external libiconv)
 169         OLD_LDFLAGS="$LDFLAGS"
 170         LDFLAGS="$LDFLAGS -liconv"
 171         AC_TRY_RUN([
 172                         #include <iconv.h>
 173                         main() {
 174                                 iconv_t ic = (iconv_t)(-1) ;
 175                                 ic = iconv_open("UTF-8", "us-ascii");
 176                                 iconv_close(ic);
 177                         }
 178                 ],
 179                         [
 180                           ok_iconv=yes
 181                           AC_MSG_RESULT([yes])
 182                         ],
 183                         [
 184                           ok_iconv=no
 185                           LDFLAGS="$OLD_LDFLAGS"
 186                           AC_MSG_RESULT([no])
 187                         ]
 188                 )
 189 fi
 190 if test "$ok_iconv" != "no"; then
 191         AC_MSG_RESULT(libcitadel will be built with character set conversion.)
 192         AC_DEFINE(HAVE_ICONV,[],[whether we have iconv for charset conversion])
 193 else
 194         AC_MSG_RESULT(libcitadel will be built without character set conversion.)
 195 fi
 196
 197 dnl disable backtrace if we don't want it.
 198 AC_ARG_WITH(backtrace,
 199                     [  --with-backtrace          enable backtrace dumps in the syslog],
 200                         [ if test "x$withval" != "xno" ; then
 201                              CFLAGS="$CFLAGS  -rdynamic "
 202                              LDFLAGS="$LDFLAGS  -rdynamic "
 203                              AC_CHECK_FUNCS(backtrace)
 204                           fi
 205                         ]
 206 )
 207
 208
 209 AC_ARG_WITH(with_zlib,    [  --with-zlib             use zlib compression if present])
 210 dnl Checks for the zlib compression library.
 211 if test "x$with_zlib" != xno ; then
 212         AC_CHECK_HEADERS(zlib.h,
 213                 [AC_CHECK_LIB(z, zlibVersion,
 214                         [ok_zlib=yes],,
 215         )])
 216 fi
 217
 218 if test "x$ok_zlib" = xyes ; then
 219         LIBS="-lz $LIBS"
 220         AC_DEFINE(HAVE_ZLIB,[],[whether we have zlib])
 221 fi
 222
 223
 224 dnl Checks for typedefs, structures, and compiler characteristics.
 225
 226 AC_SUBST(LIBS)
 227 AC_C_CONST
 228 AC_TYPE_SIZE_T
 229 AC_CHECK_FUNCS(memmove bcopy)
 230
 231 AC_CONFIG_FILES(Makefile libcitadel.pc tests/Makefile)
 232 AC_CONFIG_HEADER(sysdep.h)
 233 AC_OUTPUT
 234
 235 abs_srcdir="`cd $srcdir && pwd`"
 236 abs_builddir="`pwd`"
 237 if test "$abs_srcdir" != "$abs_builddir"; then
 238   make mkdir-init
 239 fi
 240 echo 'zlib compression:                ' $ok_zlib
 241 echo 'Character set conversion support:' $ok_iconv