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 AC_INIT([libcitadel], m4_esyscmd_s([grep LIBCITADEL_VERSION lib/libcitadel.h | sed 's/[^0-9]*//g' ]),[http://uncensored.citadel.org])
   8 AC_CONFIG_SRCDIR(Makefile.in)
   9 AC_CONFIG_AUX_DIR(conftools)
  10 AC_CONFIG_SRCDIR(tests/Makefile.in)
  11
  12 dnl
  13 dnl Set LIBREVISION to the ever-ascending libcitadel version number.
  14 dnl
  15 dnl If the API has changed, increment LIBCURRENT.
  16 dnl
  17 dnl Set LIBAGE to 0.
  18 dnl
  19
  20 LIBCURRENT=4
  21 LIBREVISION=m4_esyscmd_s([grep LIBCITADEL_VERSION lib/libcitadel.h | sed 's/[^0-9]*//g' ])
  22 LIBAGE=0
  23
  24 sinclude(conftools/libtool.m4)
  25 sinclude(conftools/ac_c_bigendian_cross.m4)
  26
  27 AC_PROG_LIBTOOL
  28
  29 AC_SUBST(LIBCURRENT)
  30 AC_SUBST(LIBREVISION)
  31 AC_SUBST(LIBAGE)
  32
  33 dnl Checks for programs.
  34 AC_PROG_CC
  35 AC_PROG_INSTALL
  36
  37 if test "$GCC" = yes ; then
  38     dnl
  39     dnl Be careful about adding the -fexceptions option; some versions of
  40     dnl GCC don't support it and it causes extra warnings that are only
  41     dnl distracting; avoid.
  42     dnl
  43     OLDCFLAGS="$CFLAGS -Wall -Wmissing-prototypes -Wstrict-prototypes"
  44     CFLAGS="$OLDCFLAGS -fexceptions"
  45     AC_MSG_CHECKING(whether $CC accepts -fexceptions)
  46     AC_TRY_LINK( , ,
  47                    AC_MSG_RESULT(yes),
  48                    AC_MSG_RESULT(no); CFLAGS="$OLDCFLAGS")
  49     CXXFLAGS=`echo "$CFLAGS" | sed 's/ -Wmissing-prototypes -Wstrict-prototypes//'`
  50 fi
  51
  52 dnl Checks for header files.
  53 AC_HEADER_STDC
  54
  55 AC_CHECK_HEADER(sys/mman.h, [CFLAGS="$CFLAGS -D HAVE_MMAP"])
  56 AC_ARG_WITH(with_zlib,    [  --with-zlib             use zlib compression if present])
  57 dnl Checks for the zlib compression library.
  58 if test "x$with_zlib" != xno ; then
  59         AC_CHECK_HEADERS(zlib.h,
  60                 [AC_CHECK_LIB(z, zlibVersion,
  61                         [ok_zlib=yes],,
  62         )])
  63 fi
  64
  65 if test "x$ok_zlib" = xyes ; then
  66         LIBS="-lz $LIBS"
  67         AC_DEFINE(HAVE_ZLIB,[],[whether we have zlib])
  68 fi
  69
  70 AC_CHECK_HEADER(CUnit/CUnit.h, [AC_DEFINE(ENABLE_TESTS, [], [whether we should compile the test-suite])])
  71
  72 AC_CHECK_HEADER(sys/sendfile.h, [AC_DEFINE(LINUX_SENDFILE, [], [whether we have the linux sendfile api])])
  73 dnl TODO: we might need to check for the actual syntax....
  74
  75
  76 AC_MSG_CHECKING([whether your system knows about splice()])
  77 AC_TRY_COMPILE([
  78 #define _GNU_SOURCE
  79 #include <unistd.h>
  80 #include <fcntl.h>
  81 ],
  82 [
  83         ssize_t sent, pipesize;
  84         int fd, SplicePipe[2];
  85         pipesize = splice(fd, NULL,
  86                           SplicePipe[1], NULL,
  87                           1,
  88                           SPLICE_F_MORE | SPLICE_F_MOVE|SPLICE_F_NONBLOCK);
  89 ],
  90                 [
  91                   ok_splice=yes
  92                   AC_DEFINE(LINUX_SPLICE, [], [whether we have the linux splice api])
  93                   AC_MSG_RESULT([yes])
  94                 ],
  95                 [
  96                   ok_splice=no
  97                   AC_MSG_RESULT([no])
  98                 ]
  99 )
 100
 101 AC_MSG_CHECKING([whether your system likes memcpy + HKEY])
 102 AC_TRY_COMPILE([
 103 #define _GNU_SOURCE
 104 #include <ctype.h>
 105 #include <errno.h>
 106 #include <string.h>
 107 #include <unistd.h>
 108 #include <string.h>
 109 #include <stdio.h>
 110 #include <sys/select.h>
 111 #include <fcntl.h>
 112 #include <sys/types.h>
 113
 114 #include "lib/libcitadel.h"
 115 ],
 116 [
 117         char foo[22];
 118         memcpy(foo, HKEY("foo"));
 119
 120 ],
 121                 [
 122
 123                   AC_MSG_RESULT([yes])
 124                 ],
 125                 [
 126                   AC_DEFINE(UNDEF_MEMCPY, [], [whether we need to undefine memcpy])
 127                   AC_MSG_RESULT([no])
 128                 ]
 129 )
 130
 131
 132 AC_CHECK_HEADERS(iconv.h)
 133
 134
 135 dnl Here is the check for a libc integrated iconv
 136 AC_ARG_ENABLE(iconv,
 137         [  --disable-iconv         do not use iconv charset conversion],
 138         ok_iconv=no, ok_iconv=yes)
 139
 140 AC_MSG_CHECKING(Checking to see if your system supports iconv)
 141 AC_TRY_RUN([
 142         #include <iconv.h>
 143         main() {
 144                 iconv_t ic = (iconv_t)(-1) ;
 145                 ic = iconv_open("UTF-8", "us-ascii");
 146                 iconv_close(ic);
 147                 exit(0);
 148         }
 149  ],
 150                 [
 151                   ok_iconv=yes
 152                   AC_MSG_RESULT([yes])
 153                 ],
 154                 [
 155                   ok_iconv=no
 156                   AC_MSG_RESULT([no])
 157                 ]
 158 )
 159
 160 dnl Check for iconv in external libiconv
 161 if test "$ok_iconv" = no; then
 162         AC_MSG_CHECKING(Checking for an external libiconv)
 163         OLD_LDFLAGS="$LDFLAGS"
 164         LDFLAGS="$LDFLAGS -liconv"
 165         AC_TRY_RUN([
 166                         #include <iconv.h>
 167                         main() {
 168                                 iconv_t ic = (iconv_t)(-1) ;
 169                                 ic = iconv_open("UTF-8", "us-ascii");
 170                                 iconv_close(ic);
 171                         }
 172                 ],
 173                         [
 174                           ok_iconv=yes
 175                           AC_MSG_RESULT([yes])
 176                         ],
 177                         [
 178                           ok_iconv=no
 179                           LDFLAGS="$OLD_LDFLAGS"
 180                           AC_MSG_RESULT([no])
 181                         ]
 182                 )
 183 fi
 184 if test "$ok_iconv" != "no"; then
 185         AC_MSG_RESULT(libcitadel will be built with character set conversion.)
 186         AC_DEFINE(HAVE_ICONV,[],[whether we have iconv for charset conversion])
 187 else
 188         AC_MSG_RESULT(libcitadel will be built without character set conversion.)
 189 fi
 190
 191 dnl disable backtrace if we don't want it.
 192 AC_ARG_WITH(backtrace,
 193                     [  --with-backtrace          enable backtrace dumps in the syslog],
 194                         [ if test "x$withval" != "xno" ; then
 195                              CFLAGS="$CFLAGS  -rdynamic "
 196                              LDFLAGS="$LDFLAGS  -rdynamic "
 197                              AC_CHECK_FUNCS(backtrace)
 198                           fi
 199                         ]
 200 )
 201
 202
 203 AC_ARG_WITH(with_zlib,    [  --with-zlib             use zlib compression if present])
 204 dnl Checks for the zlib compression library.
 205 if test "x$with_zlib" != xno ; then
 206         AC_CHECK_HEADERS(zlib.h,
 207                 [AC_CHECK_LIB(z, zlibVersion,
 208                         [ok_zlib=yes],,
 209         )])
 210 fi
 211
 212 if test "x$ok_zlib" = xyes ; then
 213         LIBS="-lz $LIBS"
 214         AC_DEFINE(HAVE_ZLIB,[],[whether we have zlib])
 215 fi
 216
 217
 218 dnl Checks for typedefs, structures, and compiler characteristics.
 219
 220 AC_SUBST(LIBS)
 221 AC_C_CONST
 222 AC_TYPE_SIZE_T
 223 AC_CHECK_FUNCS(memmove bcopy)
 224
 225 AC_CONFIG_FILES(Makefile libcitadel.pc tests/Makefile)
 226 AC_CONFIG_HEADER(sysdep.h)
 227 AC_OUTPUT
 228
 229 abs_srcdir="`cd $srcdir && pwd`"
 230 abs_builddir="`pwd`"
 231 if test "$abs_srcdir" != "$abs_builddir"; then
 232   make mkdir-init
 233 fi
 234 echo 'zlib compression:                ' $ok_zlib
 235 echo 'Character set conversion support:' $ok_iconv