dnl -*- sh -*-
dnl
dnl   This file requires m4 macros that I define in my acsite.m4 file.
dnl   A copy is in the autoconf directory.
dnl

AC_INIT(src/slang.c)
#AC_PREFIX_DEFAULT($MY_PREFIX_DEAULT)

# Installation location
AC_PREFIX_DEFAULT("/usr/local"
if test -f "/usr/include/slang.h"; then
ac_default_prefix="/usr"
fi
)

AC_CONFIG_AUX_DIR(autoconf)
AC_CANONICAL_HOST

JD_INIT
JD_ANSI_CC

AC_PROG_MAKE_SET
AC_PROG_RANLIB
AC_PROG_INSTALL

#Check these header since they cause trouble
AC_CHECK_HEADERS( \
stdlib.h \
unistd.h \
memory.h \
termios.h \
malloc.h \
locale.h \
fcntl.h \
sys/fcntl.h \
sys/types.h \
sys/wait.h \
sys/utsname.h \
sys/times.h \
)

AC_TYPE_MODE_T
AC_TYPE_PID_T
AC_TYPE_UID_T

AC_HEADER_DIRENT

AC_CHECK_FUNCS(\
memset \
memcpy \
putenv \
getcwd \
setlocale \
tcgetattr \
tcsetattr \
cfgetospeed \
sigaction \
sigemptyset \
sigprocmask \
sigaddset \
vfscanf \
lstat readlink \
kill \
snprintf vsnprintf \
getppid getegid geteuid getuid getgid setgid setpgid setuid \
chown popen mkfifo \
atexit on_exit umask uname \
times gmtime \
strtod \
issetugid \
)

AC_CHECK_LIB(m, acosh, [AC_DEFINE(HAVE_ACOSH)])
AC_CHECK_LIB(m, asinh, [AC_DEFINE(HAVE_ASINH)])
AC_CHECK_LIB(m, atanh, [AC_DEFINE(HAVE_ATANH)])

JD_ELF_COMPILER
JD_IEEE_CFLAGS

ELF_CFLAGS="$ELF_CFLAGS $IEEE_CFLAGS"
CFLAGS="$CFLAGS $IEEE_CFLAGS"

JD_SET_RPATH($libdir)

AC_CHECK_SIZEOF(short, 2)
AC_CHECK_SIZEOF(int, 4)
AC_CHECK_SIZEOF(long, 4)
AC_CHECK_SIZEOF(float, 4)
AC_CHECK_SIZEOF(double, 8)

JD_TERMCAP
JD_GCC_WARNINGS

JD_SET_OBJ_SRC_DIR(src)

JD_GET_MODULES(src/modules.unx)
JD_CREATE_MODULE_ORULES

AC_MSG_CHECKING(SLANG_VERSION)
slang_version=`grep "^#define  *SLANG_VERSION " $srcdir/src/slang.h |
               awk '{ print [$]3 }'`
slang_major_version=`echo $slang_version |
 awk '{ print int([$]1/10000) }'`
slang_minor_version=`echo $slang_version $slang_major_version |
 awk '{ print int(([$]1 - [$]2*10000)/100) }'`
slang_mminor_version=`echo $slang_version $slang_major_version $slang_minor_version |
 awk '{ print ([$]1 - [$]2*10000 - [$]3*100) }'`

slang_minor_version="$slang_minor_version.$slang_mminor_version"
slang_version="$slang_major_version.$slang_minor_version"
AC_MSG_RESULT($slang_version)
AC_SUBST(slang_major_version)
AC_SUBST(slang_minor_version)
AC_SUBST(slang_version)

AC_CONFIG_HEADER(src/sysconf.h:src/config.hin)

AC_CONFIG_SUBDIRS(demo)

AC_OUTPUT(Makefile:autoconf/Makefile.in src/Makefile slsh/Makefile modules/Makefile)

JD_CREATE_EXEC_RULE(calc)
JD_CREATE_EXEC_RULE(untic)
JD_APPEND_RULES(src/Makefile)
JD_APPEND_ELFRULES(src/Makefile)

echo ""
echo "Configuration complete.  You may need to edit src/Makefile."
echo "You are compiling SLANG with the following compiler configuration:"
echo "       CC =" "$CC"
echo "   CFLAGS =" "$CFLAGS"
echo "  LDFLAGS =" "$LDFLAGS $DYNAMIC_LINK_FLAGS"
echo ""
echo "   ELF_CC =" "$ELF_CC"
echo " ELF_LINK =" "$ELF_LINK"
echo "ELF_CFLAGS=" "$ELF_CFLAGS"
echo ""
echo "                  prefix:" "$prefix"
echo "             exec_prefix:" "$exec_prefix"
echo "    Installation Lib Dir:" "$libdir"
echo "Installation Include Dir:" "$includedir"
echo ""
echo "See also src/sl-feat.h for various features."
echo "Type 'make' to build normal library."
echo "On ELF systems, type 'make elf' to create ELF shared library."