dnl Process this file with autoconf to produce a configure script.
AC_INIT(version.h)

AM_INIT_AUTOMAKE(reiserfsprogs, 3.6.9)

dnl We install in /sbin, the utils are to be available on boot
dnl AC_PREFIX(/)

AM_CONFIG_HEADER(include/config.h)

AC_SUBST(sbindir)

PRESET_CFLAGS=$CFLAGS
AC_PROG_CC
if test "x" = "x$PRESET_CFLAGS"; then
    CFLAGS="${RPM_OPT_FLAGS} $CFLAGS -Wall"
fi

dnl Checks for programs.
AC_PROG_RANLIB
dnl AC_PROG_AWK
dnl AC_PROG_INSTALL
dnl AC_PROG_LN_S

dnl Checks for libraries.

dnl Checks for header files.
AC_HEADER_STDC
AC_CHECK_HEADERS(fcntl.h limits.h malloc.h sys/ioctl.h unistd.h)

dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_C_INLINE
AC_TYPE_SIZE_T
AC_STRUCT_ST_RDEV

dnl Checks for library functions.
AC_PROG_GCC_TRADITIONAL
AC_FUNC_MEMCMP
AC_FUNC_STRFTIME
AC_FUNC_VPRINTF
AC_CHECK_FUNCS(strerror strstr strtol)

dnl Never enable this. It is for debugging only
AC_ARG_ENABLE(io-failure-emulation,
[  --enable-io-failure-emulation      Never use that. It is for debugging only],
[ if test "$enableval" = "yes" ; then
    echo -e "\nCarefull! IO failure emulation is ON\n"
    AC_DEFINE(IO_FAILURE_EMULATION, 1, [gets set when configure --enable-io-failure-emulation])
  fi
])

AC_DEFUN(AC_PREPARE_CREDITS,
[

AC_MSG_CHECKING(for CREDITS)

AC_TRY_RUN([
#define _GNU_SOURSE
#include <stdio.h>
#include <errno.h>
#include <string.h>

int main (void) {
    FILE *fin, *fout;
    char *line = NULL;
    unsigned int len = 0;
    int start, count;
    
    if ((fin = fopen("CREDITS", "r")) == NULL) {
	fprintf(stderr, "Error occured while openning the file 'CREDITS': "
	    "%s.\n", strerror(errno));

	return 1;
    }

    if ((fout = fopen("include/credits.h", "w")) == NULL) {
	fprintf(stderr, "Error occured while openning the file 'credits.h': "
	    "%s.\n", strerror(errno));
	
	return 1;
    }
     
    /* Replicate the header. */
    while (getline(&line, &len, fin) != -1) {
	fprintf(fout, line);
	
	if (!strcmp(line, "\n"))
	    break;
    }
    
    fprintf(fout, "char *credits[] = {\n");
    
    start = 2; count = 0;
    
    while (getline(&line, &len, fin) != -1) {
	if (!strcmp(line, "\n") || strlen(line) < 1) {
	    start = 1;
	    count++;
	} else {
	    if (!start)
		fprintf(fout, "\t\\\" "\n");
	    else if (start == 1)
		fprintf(fout, ",\n\n");
	    
	    line[strlen(line) - 1] = 0;
	    fprintf(fout, "\t\"%s\\\n\"", line);
	    start = 0;
	}
    }
    
    fprintf(fout, "\n};\n");
    fprintf(fout, "#define CREDITS_COUNT %d\n", count);
    
    free(line);
    fclose(fin);
    fclose(fout);
    
    return 0;
}
], AC_MSG_RESULT(yes), AC_MSG_RESULT(no) ; exit)
])

AC_PREPARE_CREDITS()

AC_OUTPUT(
    include/Makefile 
    mkreiserfs/Makefile 
    resize_reiserfs/Makefile 
    fsck/Makefile 
    lib/Makefile 
    Makefile 
    reiserfscore/Makefile 
    debugreiserfs/Makefile 
    tune/Makefile 
    tests/Makefile 
    tests/PROGS/Makefile)