dnl
dnl configure.in -- for sam2p
dnl by [email protected] at Thu Nov  1 22:46:51 CET 2001
dnl Mon Mar  4 08:56:35 CET 2002
dnl
dnl Dat: autoheader stops reading the file at the 1st error
dnl Imp: concat (TCL, Ruby)
dnl Imp: stringify
dnl Imp: C and C++
dnl Imp: warnings
dnl OK : traditional C
dnl Imp: ctype
dnl Imp: check for socklen_t

dnl Process this file with autoconf to produce a configure script.

AC_INIT(gensi.cpp)
AC_CONFIG_HEADER(config.h)
AC_PTS_ENABLE_DEBUG

AC_MSG_CHECKING([for --enable-lzw])
AC_ARG_ENABLE(lzw,
 [  --enable-lzw            enable built-in LZW (de)compression (def: no)],
 [], [])
if test x1 = x"`perl -e 'print time>1056165811'`"; then
 # After 19 June 2003: default: yes
 if test x"$enable_lzw" = x"no"; then
   AC_MSG_RESULT(no)
 else
   AC_MSG_RESULT(yes)
   AC_DEFINE(USE_BUILTIN_LZW)
   dnl AC_MSG_WARN(LZW was patented till 19 June 2003; ask permission from Unisys to use it!)
 fi
else
 if test x"$enable_lzw" = x"yes"; then
   AC_MSG_RESULT(yes)
   AC_DEFINE(USE_BUILTIN_LZW)
   AC_MSG_WARN(LZW is patented till 19 June 2003; ask permission from Unisys to use it!)
 else
   AC_MSG_RESULT(no)
 fi
fi

dnl Sun Jul  7 23:58:11 CEST 2002
AC_MSG_CHECKING([for --enable-zip])
AC_ARG_ENABLE(zip,
 [  --enable-zip            enable built-in ZIP compression (def: yes)],
 [], [])
if test x"$enable_zip" = x"no"; then
 AC_MSG_RESULT(no)
else
 AC_MSG_RESULT(yes)
 AC_DEFINE(USE_BUILTIN_ZIP)
fi

dnl Sun Jul  7 23:58:11 CEST 2002
AC_MSG_CHECKING([for --enable-fax])
AC_ARG_ENABLE(fax,
 [  --enable-fax            enable built-in Fax compression (def: yes)],
 [], [])
if test x"$enable_fax" = x"no"; then
 AC_MSG_RESULT(no)
else
 AC_MSG_RESULT(yes)
 AC_DEFINE(USE_BUILTIN_FAXE)
fi

AC_MSG_CHECKING([for --enable-gif])
AC_ARG_ENABLE(gif,
 [  --enable-gif            enable reading and writing GIF images (def: no)],
 [], [])
if test x"$enable_gif" = x"yes"; then
 AC_MSG_RESULT(yes)
 AC_DEFINE(USE_IN_GIF)
 AC_DEFINE(USE_OUT_GIF)
 AC_MSG_WARN(GIF is a resistered trademark of Compuserve; ask permission from them to use it!)
else
 AC_MSG_RESULT(no)
fi

dnl Checks for programs.
dnl AC_PROG_CC
AC_LANG_CPLUSPLUS
CXXFLAGS=" "
dnl ^^^ set it to non-empty, so AC_PROG_CXX won't include `-g'
CCC="$CCC g++"
dnl ^^^ check g++ before c++ (see acspecific.m4, grep AC_PROG_CXX)
AC_PROG_CXX

AC_SUBST(GFLAG)
if test x"$ac_cv_prog_cxx_g" = xyes; then GFLAG=-g; else GFLAG=""; fi
dnl ac_cv_prog_cc_g also

AC_PTS_PROG_CXXFLAGS(fs, -fsigned-char)
AC_PTS_PROG_CXXFLAGS(nrne, -fno-rtti -fno-exceptions)
dnl ^^^ `g++ -fno-rtti': disables `typeinfo' (??) and run-time type identification
dnl ^^^ `g++ -fno-exceptions': disables catch and throw
AC_PTS_PROG_CXXFLAGSB(apwaw, -ansi -pedantic -Wall -W)
AC_PTS_PROG_CXXFLAGSB(wextra, -Wextra)
dnl vvv gcc-3.2 gives too many stupid warnings with -Wtraditional
dnl AC_PTS_PROG_CXXFLAGSB(-Wtraditional)
AC_PTS_PROG_CXXFLAGSB(ptscxxopts, -felide-constructors -Wstrict-prototypes dnl
-Wpointer-arith -Wcast-align -Winline dnl
-Wcast-qual -Wmissing-prototypes)
AC_PTS_CHECK_IGNORING(nebfcmd,-W -Wall -Wnested-externs -Wbad-function-cast -Wmissing-declarations)
if test x"$ac_cv_pts_ignoring_nebfcmd" = xyes
then ac_cv_prog_cxx_nebfcmd=no
fi
AC_PTS_PROG_CXXFLAGSB(nebfcmd,-Wnested-externs -Wbad-function-cast -Wmissing-declarations)
dnl vvv g++ version egcs-2.91.60 + gcc version 2.7.2.3 requires
dnl     `g++ -fno-rtti -fno-exceptions' for AC_PTS_GCC_LINKS_CXX to be `yes'
AC_PTS_GCC_LINKS_CXX

AC_PTS_WARN_PROG(cjpeg, [cjpeg is required for /Compression/IJG])
AC_PTS_WARN_PROG(djpeg, [djpeg is required for loading JPEG files])
AC_PTS_WARN_PROG(tif22pnm, [tif22pnm is required for loading TIFF files])
AC_PTS_WARN_PROG(tifftopnm, [tifftopnm might become useful for loading TIFF files])
AC_PTS_WARN_PROG(pngtopnm, [pngtopnm might become useful for loading PNG files])
dnl AC_PTS_WARN_PROG(gs, [gs is required for /Compression/Fax, and might become recommended for /Compression/ZIP])
AC_PTS_WARN_PROG(gs, [gs is recommended for viewing PS files[,] and might become recommended for /Compression/ZIP])
AC_PTS_WARN_PROG(lzw_codec, [lzw_codec might become recommended for /Compression/LZW])
AC_PTS_WARN_PROG(gzip, [gzip might become useful for /Compression/ZIP])
AC_PTS_WARN_PROG(zip, [zip might become useful for /Compression/ZIP])
AC_PTS_ERR_PROG(bash, [bash is required for compiling this program])
AC_PTS_ERR_PROG(make, [make is required for compiling this program])
AC_PTS_ERR_PROG(perl, [perl is required for compiling this program])
dnl AC_PTS_ERR_PROG(touch, [touch is required for compiling this program])
dnl ^^^ as of 0.37, touch is not required

#AC_CHECK_PROG(ac_pts_cjpeg, cjpeg, yes)

dnl Checks for C/C++ language features
AC_PTS_HAVE_STDC
AC_PTS_HAVE_SWITCH_ENUM_BUG
AC_PTS_ENSURE_ASCII_SYSTEM
AC_C_CONST
AC_PTS_C_VOLATILE
AC_PTS_HAVE_STATIC_CONST

dnl Checks for libraries.

dnl Checks for header files.
dnl AC_CHECK_HEADERS(stdio.h); exit 42
dnl AC_CHECK_HEADERS(stdio.h stdlib.h unistd.h string.h strings.h)

dnl Dat: getc_in_stdio fails for uClibc-0.9.14 _and_ `i386-uclibc-gcc -ansi'
CXXFLAGS_save="$CXXFLAGS"
CXXFLAGS="$CXXFLAGS -ansi"
AC_PTS_CHECK_HEADER(stdio.h,  getc,    getc_in_stdio,    [return argc>42? getc(stdin)*0+1:0;])
AC_PTS_CHECK_HEADER(stdio.h,  fgetc,   fgetc_in_stdio,   [return argc>42?fgetc(stdin)*0+1:0;])
AC_PTS_CHECK_HEADER(stdio.h,  putc,    putc_in_stdio,    [return argc>42? putc(' ',stdout)*0+1:0;])
AC_PTS_CHECK_HEADER(stdio.h,  fputc,   fputc_in_stdio,   [return argc>42?fputc(' ',stdout)*0+1:0;])
CXXFLAGS="$CXXFLAGS_save"

AC_PTS_CHECK_HEADER(stdio.h,  sprintf, sprintf_in_stdio, [char s[42]="X"; sprintf(s, "Hello, World!"); return *s!='H';] )
AC_PTS_CHECK_HEADER(stdlib.h, atoi,    atoi_in_stdlib,   [return atoi("42")!=42;])
AC_PTS_CHECK_HEADER(unistd.h, write,   write_in_unistd,  [return write(1,"what",0)!=0;])
AC_PTS_CHECK_HEADER(stdlib.h, system,  system_in_stdlib, [/*>255 OK*/return system("true")!=0;])
AC_PTS_CHECK_HEADER(sys/stat.h, lstat, lstat_in_sys_stat,[struct stat st; return 0!=lstat("/",&st);])
AC_PTS_CHECK_STRING
AC_PTS_CHECK_MALLOC
AC_FUNC_ALLOCA
AC_PTS_CFG_PRINTFGLEN
AC_PTS_CFG_P_TMPDIR
AC_PTS_HAVE_POPEN_
if test $ac_cv_pts_have_popen_ = yes; then
 ac_cv_pts_have_popen_b=no
fi
AC_PTS_HAVE_POPEN_B
AC_PTS_HAVE_VSNPRINTF
AC_PTS_HAVE_SYSTEMF

dnl Checks for integral/pointer sizes.

dnl AC_C_CHAR_UNSIGNED

AC_PTS_CHECK_POINTERS
dnl AC_PTS_CHECK_INTEGRALS -- alread in AC_PTS_CHECK_POINTERS
dnl AC_REQUIRE([AC_PTS_CHECK_POINTERS])
dnl AC_REQUIRE([AC_PTS_CHECK_INTEGRALS])
dnl Dat: POINTERS, INTEGRALS order would result in `(cached)' without AC_REQUIRE
dnl DAT: newer autoconfs disallow AC_REQUIRE(...) outside macros

dnl ac_cv_alma=korte # Dat: automagically inserted into config.cache
dnl AC_DEFINE(PTS_INT128_T, 42) # Dat: includes to conftest.h, config.h

dnl cat confdefs.h # Dat: contains already AC_DEFINE()d symbols

dnl Checks for typedefs, structures, and compiler characteristics.
dnl AC_TYPE_SIZE_T
AC_PTS_CHECK_INTEGRAL_TYPE(size_t, unsigned)
dnl AC_PTS_CHECK_INTEGRAL_TYPE(time_t, unsigned)
dnl AC_PTS_CHECK_INTEGRAL_TYPE(mode_t, int)
dnl AC_PTS_CHECK_INTEGRAL_TYPE(off_t, long)
dnl AC_PTS_CHECK_INTEGRAL_TYPE(pid_t, int)
dnl AC_PTS_CHECK_INTEGRAL_TYPE(dev_t, unsigned long)
dnl dnl ^^^ Dat: unsigned PTS_INT64_T on Linux i386
dnl AC_PTS_CHECK_INTEGRAL_TYPE(uid_t, unsigned)
dnl AC_PTS_CHECK_INTEGRAL_TYPE(gid_t, unsigned)
dnl AC_PTS_CHECK_INTEGRAL_TYPE(size_tt, signed)
dnl Dat: AC_TYPE_SIGNAL is OK, there should be no AC_PTS_CHECK_* substitute
dnl AC_PTS_TYPE_GETGROUPS
dnl ^^^ doesn't work wth CPPFLAGS=-traditional
AC_PTS_CHECK_SIZEOF(bool, -1)
dnl ^^^ Dat: 0 #if (PC: 1, Digital Unix: 8, Solaris: 4)
dnl ^^^ Dat: autoconf-2.54 AC_CHECK_SIZEOF checks sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h inttypes.h stdint.h unistd.h

dnl Checks for library functions.
dnl (None!)

dnl Finishing.

dnl AC_OUTPUT(config.h) -- bad!!
dnl skipping AC_OUTPUT -- bad!!
AC_OUTPUT(Makehelp)

dnl AC_PTS_RUN_OK([perl -x -S ./ccdep.pl $CXX], [], [AC_MSG_ERROR(cannot compute depends)])
rm -f Makedep
AC_PTS_RUN_OK([make Makedep.force], [], [AC_MSG_ERROR(cannot compute depends)])
AC_PTS_OK
echo "configure done. Now you should run: make; make install"

dnl end of configure.in

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