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, 8.10, 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
  14 dnl
  15 dnl Increment LIBREVISION if source code has changed at all
  16 dnl
  17 dnl If the API has changed, increment LIBCURRENT and set LIBREVISION to 0
  18 dnl
  19 dnl If the API changes compatibly (i.e. simply adding a new function
  20 dnl without changing or removing earlier interfaces), then increment LIBAGE.
  21 dnl
  22 dnl If the API changes incompatibly set LIBAGE back to 0
  23 dnl
  24
  25 LIBCURRENT=2
  26 LIBREVISION=2
  27 LIBAGE=1
  28
  29 sinclude(conftools/libtool.m4)
  30 sinclude(conftools/ac_c_bigendian_cross.m4)
  31
  32 AC_PROG_LIBTOOL
  33
  34 AC_SUBST(LIBCURRENT)
  35 AC_SUBST(LIBREVISION)
  36 AC_SUBST(LIBAGE)
  37
  38 dnl Checks for programs.
  39 AC_PROG_CC
  40 AC_PROG_INSTALL
  41
  42 if test "$GCC" = yes ; then
  43     dnl
  44     dnl Be careful about adding the -fexceptions option; some versions of
  45     dnl GCC don't support it and it causes extra warnings that are only
  46     dnl distracting; avoid.
  47     dnl
  48     OLDCFLAGS="$CFLAGS -Wall -Wmissing-prototypes -Wstrict-prototypes"
  49     CFLAGS="$OLDCFLAGS -fexceptions"
  50     AC_MSG_CHECKING(whether $CC accepts -fexceptions)
  51     AC_TRY_LINK( , ,
  52                    AC_MSG_RESULT(yes),
  53                    AC_MSG_RESULT(no); CFLAGS="$OLDCFLAGS")
  54     CXXFLAGS=`echo "$CFLAGS" | sed 's/ -Wmissing-prototypes -Wstrict-prototypes//'`
  55 fi
  56
  57 dnl Checks for header files.
  58 AC_HEADER_STDC
  59
  60 AC_CHECK_HEADER(sys/mman.h, [CFLAGS="$CFLAGS -D HAVE_MMAP"])
  61 AC_ARG_WITH(with_zlib,    [  --with-zlib             use zlib compression if present])
  62 dnl Checks for the zlib compression library.
  63 if test "x$with_zlib" != xno ; then
  64         AC_CHECK_HEADERS(zlib.h,
  65                 [AC_CHECK_LIB(z, zlibVersion,
  66                         [ok_zlib=yes],,
  67         )])
  68 fi
  69
  70 if test "x$ok_zlib" = xyes ; then
  71         LIBS="-lz $LIBS"
  72         AC_DEFINE(HAVE_ZLIB,[],[whether we have zlib])
  73 fi
  74
  75 AC_CHECK_HEADER(CUnit/CUnit.h, [AC_DEFINE(ENABLE_TESTS, [], [whether we should compile the test-suite])])
  76
  77 AC_CHECK_HEADER(sys/sendfile.h, [AC_DEFINE(LINUX_SENDFILE, [], [whether we have the linux sendfile api])])
  78 dnl TODO: we might need to check for the actual syntax....
  79
  80
  81 AC_CHECK_HEADERS(iconv.h)
  82
  83
  84 dnl Here is the check for a libc integrated iconv
  85 AC_ARG_ENABLE(iconv,
  86         [  --disable-iconv         do not use iconv charset conversion],
  87         ok_iconv=no, ok_iconv=yes)
  88
  89 AC_MSG_CHECKING(Checking to see if your system supports iconv)
  90 AC_TRY_RUN([
  91         #include <iconv.h>
  92         main() {
  93                 iconv_t ic = (iconv_t)(-1) ;
  94                 ic = iconv_open("UTF-8", "us-ascii");
  95                 iconv_close(ic);
  96                 exit(0);
  97         }
  98  ],
  99                 [
 100                   ok_iconv=yes
 101                   AC_MSG_RESULT([yes])
 102                 ],
 103                 [
 104                   ok_iconv=no
 105                   AC_MSG_RESULT([no])
 106                 ]
 107 )
 108
 109 dnl Check for iconv in external libiconv
 110 if test "$ok_iconv" = no; then
 111         AC_MSG_CHECKING(Checking for an external libiconv)
 112         OLD_LDFLAGS="$LDFLAGS"
 113         LDFLAGS="$LDFLAGS -liconv"
 114         AC_TRY_RUN([
 115                         #include <iconv.h>
 116                         main() {
 117                                 iconv_t ic = (iconv_t)(-1) ;
 118                                 ic = iconv_open("UTF-8", "us-ascii");
 119                                 iconv_close(ic);
 120                         }
 121                 ],
 122                         [
 123                           ok_iconv=yes
 124                           AC_MSG_RESULT([yes])
 125                         ],
 126                         [
 127                           ok_iconv=no
 128                           LDFLAGS="$OLD_LDFLAGS"
 129                           AC_MSG_RESULT([no])
 130                         ]
 131                 )
 132 fi
 133 if test "$ok_iconv" != "no"; then
 134         AC_MSG_RESULT(libcitadel will be built with character set conversion.)
 135         AC_DEFINE(HAVE_ICONV,[],[whether we have iconv for charset conversion])
 136 else
 137         AC_MSG_RESULT(libcitadel will be built without character set conversion.)
 138 fi
 139
 140 dnl disable backtrace if we don't want it.
 141 AC_ARG_WITH(backtrace,
 142                     [  --with-backtrace          enable backtrace dumps in the syslog],
 143                         [ if test "x$withval" != "xno" ; then
 144                              CFLAGS="$CFLAGS  -rdynamic "
 145                              LDFLAGS="$LDFLAGS  -rdynamic "
 146                              AC_CHECK_FUNCS(backtrace)
 147                           fi
 148                         ]
 149 )
 150
 151
 152 AC_ARG_WITH(with_zlib,    [  --with-zlib             use zlib compression if present])
 153 dnl Checks for the zlib compression library.
 154 if test "x$with_zlib" != xno ; then
 155         AC_CHECK_HEADERS(zlib.h,
 156                 [AC_CHECK_LIB(z, zlibVersion,
 157                         [ok_zlib=yes],,
 158         )])
 159 fi
 160
 161 if test "x$ok_zlib" = xyes ; then
 162         LIBS="-lz $LIBS"
 163         AC_DEFINE(HAVE_ZLIB,[],[whether we have zlib])
 164 fi
 165
 166
 167 dnl Checks for typedefs, structures, and compiler characteristics.
 168
 169 AC_SUBST(LIBS)
 170 AC_C_CONST
 171 AC_TYPE_SIZE_T
 172 AC_CHECK_FUNCS(memmove bcopy)
 173
 174 AC_CONFIG_FILES(Makefile libcitadel.pc tests/Makefile)
 175 AC_CONFIG_HEADER(sysdep.h)
 176 AC_OUTPUT
 177
 178 abs_srcdir="`cd $srcdir && pwd`"
 179 abs_builddir="`pwd`"
 180 if test "$abs_srcdir" != "$abs_builddir"; then
 181   make mkdir-init
 182 fi
 183 echo 'zlib compression:                ' $ok_zlib
 184 echo 'Character set conversion support:' $ok_iconv