-dnl Copyright (C) 2005, 2006 Free Software Foundation, Inc.
+dnl Copyright (C) 2005, 2006, 2007 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
-dnl Check longest integer in digits.
+dnl Prerequisites.
-AC_DEFUN([BLP_INT_DIGITS],
+dnl Instead of giving an error about each prerequisite as we encounter it,
+dnl group them all together at the end of the run, to be user-friendly.
+AC_DEFUN([PSPP_REQUIRED_PREREQ], [pspp_required_prereqs="$pspp_required_prereqs
+ $1"])
+AC_DEFUN([PSPP_OPTIONAL_PREREQ], [pspp_optional_prereqs="$pspp_optional_prereqs
+ $1"])
+AC_DEFUN([PSPP_CHECK_PREREQS],
[
-AC_MSG_CHECKING(number of digits in LONG_MIN (incl. sign))
-AC_CACHE_VAL(blp_int_digits,
- [AC_TRY_RUN([#include <stdio.h>
- #include <limits.h>
- int
- main()
- {
- int len;
- char s[80];
- sprintf(s, "%ld", LONG_MAX);
- len = strlen(s);
- sprintf(s, "%ld", LONG_MIN);
- if(strlen(s)>len) len=strlen(s);
- sprintf(s, "%lu", ULONG_MAX);
- if(strlen(s)>len) len=strlen(s);
- exit(len);
- }
- ],
- eval "blp_int_digits=19",
- eval "blp_int_digits=$?"
- if test "$blp_int_digits" -lt 11; then
- blp_int_digits=11
- fi,
- eval "blp_int_digits=19")
- ])
-AC_DEFINE_UNQUOTED([INT_DIGITS], $blp_int_digits,
- [Number of digits in longest `long' value, including sign.
- This is usually 11, for 32-bit `long's, or 19, for 64-bit
- `long's.])
-AC_MSG_RESULT($blp_int_digits) ])dnl
+ if test "$pspp_optional_prereqs" != ""; then
+ AC_MSG_WARN([The following optional prerequisites are not installed.
+You may wish to install them to obtain additional functionality:$pspp_optional_prereqs])
+fi
+ if test "$pspp_required_prereqs" != ""; then
+ AC_MSG_ERROR([The following required prerequisites are not installed.
+You must install them before PSPP can be built:$pspp_required_prereqs])
+fi
+])
+
+
+dnl Check that a new enough version of Perl is available.
+AC_DEFUN([PSPP_PERL],
+[
+ AC_PATH_PROG([PERL], perl, no)
+ AC_SUBST([PERL])dnl
+ if test "$PERL" != no && $PERL -e 'require 5.005_03;'; then :; else
+ PSPP_REQUIRED_PREREQ([Perl 5.005_03 (or later)])
+ fi
+])
+
+dnl Check that libplot is available.
+AC_DEFUN([PSPP_LIBPLOT],
+[
+ AC_ARG_WITH(
+ libplot,
+ [AS_HELP_STRING([--without-libplot],
+ [don't compile in support of charts (using libplot)])])
+
+ if test x"$with_libplot" != x"no" ; then
+ # Check whether we can link against libplot without any extra libraries.
+ AC_CHECK_LIB(plot, pl_newpl_r, [LIBPLOT_LIBS="-lplot"])
+
+ # Check whether we can link against libplot if we also link X.
+ if test x"$LIBPLOT_LIBS" = x""; then
+ AC_PATH_XTRA
+ extra_libs="-lXaw -lXmu -lXt $X_PRE_LIBS -lXext -lX11 $X_EXTRA_LIBS -lm"
+ AC_CHECK_LIB(plot, pl_newpl_r,
+ [LIBPLOT_LIBS="-lplot $extra_libs"
+ LDFLAGS="$LDFLAGS $X_LIBS"],,
+ [$extra_libs])
+ fi
+
+ # Still can't link?
+ if test x"$LIBPLOT_LIBS" = x""; then
+ PSPP_REQUIRED_PREREQ([libplot (or use --without-libplot)])
+ fi
+
+ # Set up to make everything work.
+ LIBS="$LIBPLOT_LIBS $LIBS"
+ AC_DEFINE(HAVE_LIBPLOT, 1,
+ [Define to 1 if you have the `libplot' library (-lplot).])
+ fi
+])
+
+dnl Check whether a C compiler option is accepted.
+dnl If so, add it to CFLAGS.
+dnl Example: PSPP_ENABLE_OPTION(-Wdeclaration-after-statement)
+AC_DEFUN([PSPP_ENABLE_OPTION],
+[
+ m4_define([pspp_cv_name], [pspp_cv_[]m4_translit([$1], [-], [_])])dnl
+ AC_CACHE_CHECK([whether $CC accepts $1], [pspp_cv_name],
+ [pspp_save_CFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS $1"
+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM(,)], [pspp_cv_name[]=yes], [pspp_cv_name[]=no])
+ CFLAGS="$pspp_save_CFLAGS"])
+ if test $pspp_cv_name = yes; then
+ CFLAGS="$CFLAGS $1"
+ fi
+])
dnl Check for readline and history libraries.
-dnl Modified for PSPP by Ben Pfaff, based on readline.m4 serial 3 from
+dnl Modified for PSPP, based on readline.m4 serial 3 from
dnl gnulib, which was written by Simon Josefsson, with help from Bruno
dnl Haible and Oskar Liljeblad.
if test "$gl_cv_lib_readline" = yes; then
AC_DEFINE(HAVE_READLINE, 1, [Define if you have the readline library.])
- fi
-
- if test "$gl_cv_lib_readline" = yes; then
AC_MSG_CHECKING([how to link with libreadline])
AC_MSG_RESULT([$LIBREADLINE])
else
LTLIBREADLINE=
LIBHISTORY=
LTLIBHISTORY=
+ PSPP_OPTIONAL_PREREQ([libreadline (which may itself require libncurses or libtermcap)])
fi
AC_SUBST(LIBREADLINE)
AC_SUBST(LTLIBREADLINE)
])
-dnl aclocal.m4 ends here
+dnl Check for build tools. Adapted from bfd library.
+
+AC_DEFUN([PSPP_CC_FOR_BUILD],
+[# Put a plausible default for CC_FOR_BUILD in Makefile.
+if test -z "$CC_FOR_BUILD"; then
+ if test "x$cross_compiling" = "xno"; then
+ CC_FOR_BUILD='$(CC)'
+ else
+ CC_FOR_BUILD=cc
+ fi
+fi
+AC_SUBST(CC_FOR_BUILD)
+# Also set EXEEXT_FOR_BUILD.
+if test "x$cross_compiling" = "xno"; then
+ EXEEXT_FOR_BUILD='$(EXEEXT)'
+else
+ AC_CACHE_CHECK([for build system executable suffix], pspp_cv_build_exeext,
+ [rm -f conftest*
+ echo 'int main () { return 0; }' > conftest.c
+ pspp_cv_build_exeext=
+ ${CC_FOR_BUILD} -o conftest conftest.c 1>&5 2>&5
+ for file in conftest.*; do
+ case $file in # (
+ *.c | *.o | *.obj | *.ilk | *.pdb) ;; # (
+ *) pspp_cv_build_exeext=`echo $file | sed -e s/conftest//` ;;
+ esac
+ done
+ rm -f conftest*
+ test x"${pspp_cv_build_exeext}" = x && pspp_cv_build_exeext=no])
+ EXEEXT_FOR_BUILD=""
+ test x"${pspp_cv_build_exeext}" != xno && EXEEXT_FOR_BUILD=${pspp_cv_build_exeex
+t}
+fi
+AC_SUBST(EXEEXT_FOR_BUILD)])
+
+dnl Check for LC_PAPER, _NL_PAPER_WIDTH, _NL_PAPER_HEIGHT.
+AC_DEFUN([PSPP_LC_PAPER],
+[AC_CACHE_CHECK(for LC_PAPER, pspp_cv_lc_paper, [
+ pspp_cv_lc_paper=no
+ AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM(
+ [#include <locale.h>
+#include <langinfo.h>
+],
+ [(void) LC_PAPER; (void) _NL_PAPER_WIDTH; (void) _NL_PAPER_HEIGHT])],
+ [pspp_cv_lc_paper=yes])
+ ])
+ if test "$pspp_cv_lc_paper" = yes; then
+ AC_DEFINE(HAVE_LC_PAPER, 1, [Define if you have LC_PAPER.])
+ fi
+])
+
+dnl acinclude.m4 ends here
projects / pspp-builds.git / blobdiff