1 dnl Copyright (C) 2005, 2006, 2007, 2009 Free Software Foundation, Inc.
2 dnl This file is free software; the Free Software Foundation
3 dnl gives unlimited permission to copy and/or distribute it,
4 dnl with or without modifications, as long as this notice is preserved.
8 dnl Summarize all the missing prerequisites at the end of the run to
9 dnl increase user-friendliness.
10 AC_DEFUN([PSPP_REQUIRED_PREREQ],
11 [AC_MSG_WARN([You must install $1 before building PSPP.])
12 pspp_required_prereqs="$pspp_required_prereqs
14 AC_DEFUN([PSPP_OPTIONAL_PREREQ], [pspp_optional_prereqs="$pspp_optional_prereqs
16 AC_DEFUN([PSPP_CHECK_PREREQS],
18 if test "$pspp_optional_prereqs" != ""; then
19 AC_MSG_WARN([The following optional prerequisites are not installed.
20 You may wish to install them to obtain additional functionality:$pspp_optional_prereqs])
22 if test "$pspp_required_prereqs" != ""; then
23 AC_MSG_ERROR([The following required prerequisites are not installed.
24 You must install them before PSPP can be built:$pspp_required_prereqs])
29 dnl Check that a new enough version of Perl is available.
32 AC_PATH_PROG([PERL], perl, no)
34 if test "$PERL" != no && $PERL -e 'require 5.005_03;'; then :; else
35 PSPP_REQUIRED_PREREQ([Perl 5.005_03 (or later)])
38 # The PSPP autobuilder appends a build number to the PSPP version number,
39 # e.g. "0.7.2-build40". But Perl won't parse version numbers that contain
40 # anything other than digits and periods, so "-build" causes an error. So we
41 # define $(VERSION_FOR_PERL) that drops everything from the hyphen onward.
42 VERSION_FOR_PERL=`echo "$VERSION" | sed 's/-.*//'`
43 AC_SUBST([VERSION_FOR_PERL])
46 dnl PSPP_CHECK_CC_OPTION([OPTION], [ACTION-IF-ACCEPTED], [ACTION-IF-REJECTED])
47 dnl Check whether the given C compiler OPTION is accepted.
48 dnl If so, execute ACTION-IF-ACCEPTED, otherwise ACTION-IF-REJECTED.
49 AC_DEFUN([PSPP_CHECK_CC_OPTION],
51 m4_define([pspp_cv_name], [pspp_cv_[]m4_translit([$1], [-], [_])])dnl
52 AC_CACHE_CHECK([whether $CC accepts $1], [pspp_cv_name],
53 [pspp_save_CFLAGS="$CFLAGS"
55 AC_COMPILE_IFELSE([AC_LANG_PROGRAM(,)], [pspp_cv_name[]=yes], [pspp_cv_name[]=no])
56 CFLAGS="$pspp_save_CFLAGS"])
57 if test $pspp_cv_name = yes; then
58 m4_if([$2], [], [;], [$2])
60 m4_if([$3], [], [:], [$3])
64 dnl PSPP_ENABLE_OPTION([OPTION])
65 dnl Check whether the given C compiler OPTION is accepted.
66 dnl If so, add it to CFLAGS.
67 dnl Example: PSPP_ENABLE_OPTION([-Wdeclaration-after-statement])
68 AC_DEFUN([PSPP_ENABLE_OPTION],
69 [PSPP_CHECK_CC_OPTION([$1], [CFLAGS="$CFLAGS $1"])])
71 dnl Check for readline and history libraries.
73 dnl Modified for PSPP, based on readline.m4 serial 3 from
74 dnl gnulib, which was written by Simon Josefsson, with help from Bruno
75 dnl Haible and Oskar Liljeblad.
77 AC_DEFUN([PSPP_READLINE],
79 dnl Prerequisites of AC_LIB_LINKFLAGS_BODY.
80 AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
81 AC_REQUIRE([AC_LIB_RPATH])
83 dnl Search for libreadline and define LIBREADLINE, LTLIBREADLINE and
84 dnl INCREADLINE accordingly.
85 AC_LIB_LINKFLAGS_BODY([readline])
86 AC_LIB_LINKFLAGS_BODY([history])
88 dnl Add $INCREADLINE to CPPFLAGS before performing the following checks,
89 dnl because if the user has installed libreadline and not disabled its use
90 dnl via --without-libreadline-prefix, he wants to use it. The AC_LINK_IFELSE
91 dnl will then succeed.
92 am_save_CPPFLAGS="$CPPFLAGS"
93 AC_LIB_APPENDTOVAR([CPPFLAGS], [$INCREADLINE $INCHISTORY])
95 AC_CACHE_CHECK(for readline, gl_cv_lib_readline, [
98 dnl On some systems, -lreadline doesn't link without an additional
99 dnl -lncurses or -ltermcap.
100 dnl Try -lncurses before -ltermcap, because libtermcap is unsecure
101 dnl by design and obsolete since 1994. Try -lcurses last, because
102 dnl libcurses is unusable on some old Unices.
103 for extra_lib in "" ncurses termcap curses; do
104 LIBS="$am_save_LIBS $LIBREADLINE $LIBHISTORY"
105 if test -n "$extra_lib"; then
106 LIBS="$LIBS -l$extra_lib"
108 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <stdio.h>
109 #include <readline/readline.h>
110 #include <readline/history.h>]], [[readline((char*)0); add_history((char*)0);]])],[gl_cv_lib_readline=yes],[])
111 if test "$gl_cv_lib_readline" = yes; then
112 if test -n "$extra_lib"; then
113 LIBREADLINE="$LIBREADLINE $LIBHISTORY -l$extra_lib"
114 LTLIBREADLINE="$LTLIBREADLINE $LTLIBHISTORY -l$extra_lib"
122 if test "$gl_cv_lib_readline" = yes; then
123 AC_DEFINE(HAVE_READLINE, 1, [Define if you have the readline library.])
124 AC_MSG_CHECKING([how to link with libreadline])
125 AC_MSG_RESULT([$LIBREADLINE])
127 dnl If $LIBREADLINE didn't lead to a usable library, we don't
128 dnl need $INCREADLINE either.
129 CPPFLAGS="$am_save_CPPFLAGS"
134 PSPP_OPTIONAL_PREREQ([libreadline (which may itself require libncurses or libtermcap)])
136 AC_SUBST(LIBREADLINE)
137 AC_SUBST(LTLIBREADLINE)
140 dnl Check for build tools. Adapted from bfd library.
142 AC_DEFUN([PSPP_CC_FOR_BUILD],
143 [# Put a plausible default for CC_FOR_BUILD in Makefile.
144 if test -z "$CC_FOR_BUILD"; then
145 if test "x$cross_compiling" = "xno"; then
151 AC_SUBST(CC_FOR_BUILD)
152 # Also set EXEEXT_FOR_BUILD.
153 if test "x$cross_compiling" = "xno"; then
154 EXEEXT_FOR_BUILD='$(EXEEXT)'
156 AC_CACHE_CHECK([for build system executable suffix], pspp_cv_build_exeext,
158 echo 'int main () { return 0; }' > conftest.c
159 pspp_cv_build_exeext=
160 ${CC_FOR_BUILD} -o conftest conftest.c 1>&5 2>&5
161 for file in conftest.*; do
163 *.c | *.o | *.obj | *.ilk | *.pdb) ;; # (
164 *) pspp_cv_build_exeext=`echo $file | sed -e s/conftest//` ;;
168 test x"${pspp_cv_build_exeext}" = x && pspp_cv_build_exeext=no])
170 test x"${pspp_cv_build_exeext}" != xno && EXEEXT_FOR_BUILD=${pspp_cv_build_exeex
173 AC_SUBST(EXEEXT_FOR_BUILD)])
175 dnl Check for LC_PAPER, _NL_PAPER_WIDTH, _NL_PAPER_HEIGHT.
176 AC_DEFUN([PSPP_LC_PAPER],
177 [AC_CACHE_CHECK(for LC_PAPER, pspp_cv_lc_paper, [
182 #include <langinfo.h>
184 [(void) LC_PAPER; (void) _NL_PAPER_WIDTH; (void) _NL_PAPER_HEIGHT])],
185 [pspp_cv_lc_paper=yes])
187 if test "$pspp_cv_lc_paper" = yes; then
188 AC_DEFINE(HAVE_LC_PAPER, 1, [Define if you have LC_PAPER.])
193 # PSPP_LINK2_IFELSE(SOURCE1, SOURCE2, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
194 # -------------------------------------------------------------
195 # Based on AC_LINK_IFELSE, but tries to link both SOURCE1 and SOURCE2
198 # Test that resulting file is executable; see the problem reported by mwoehlke
199 # in <http://lists.gnu.org/archive/html/bug-coreutils/2006-10/msg00048.html>.
200 # But skip the test when cross-compiling, to prevent problems like the one
201 # reported by Chris Johns in
202 # <http://lists.gnu.org/archive/html/autoconf/2007-03/msg00085.html>.
204 m4_define([PSPP_LINK2_IFELSE],
205 [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])dnl
206 mv conftest.$ac_ext conftest1.$ac_ext
207 m4_ifvaln([$2], [AC_LANG_CONFTEST([$2])])dnl
208 mv conftest.$ac_ext conftest2.$ac_ext
209 rm -f conftest1.$ac_objext conftest2.$ac_objext conftest$ac_exeext
210 pspp_link2='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest1.$ac_ext conftest2.$ac_ext $LIBS >&5'
211 AS_IF([_AC_DO_STDERR($pspp_link2) && {
212 test -z "$ac_[]_AC_LANG_ABBREV[]_werror_flag" ||
213 test ! -s conftest.err
214 } && test -s conftest$ac_exeext && {
215 test "$cross_compiling" = yes ||
216 AS_TEST_X([conftest$ac_exeext])
219 [echo "$as_me: failed source file 1 of 2 was:" >&5
220 sed 's/^/| /' conftest1.$ac_ext >&5
221 echo "$as_me: failed source file 2 of 2 was:" >&5
222 sed 's/^/| /' conftest2.$ac_ext >&5
224 dnl Delete also the IPA/IPO (Inter Procedural Analysis/Optimization)
225 dnl information created by the PGI compiler (conftest_ipa8_conftest.oo),
226 dnl as it would interfere with the next link command.
227 rm -rf conftest.dSYM conftest1.dSYM conftest2.dSYM
228 rm -f core conftest.err conftest1.err conftest2.err
229 rm -f conftest1.$ac_objext conftest2.$ac_objext conftest*_ipa8_conftest*.oo
230 rm -f conftest$ac_exeext
231 rm -f m4_ifval([$1], [conftest1.$ac_ext]) m4_ifval([$2], [conftest1.$ac_ext])[]dnl
232 ])# PSPP_LINK2_IFELSE
234 # GSL uses "extern inline" without determining whether the compiler uses
235 # GCC inline rules or C99 inline rules. If it uses the latter then GSL
236 # will be broken without passing -fgnu89-inline to GCC.
237 AC_DEFUN([PSPP_GSL_NEEDS_FGNU89_INLINE],
238 [# GSL only uses "inline" at all if HAVE_INLINE is defined as a macro.
239 # In turn, gnulib's gl_INLINE is one macro that does that. We need to
240 # make sure that it has run by the time we run this test, otherwise we'll
241 # get a false result.
242 AC_REQUIRE([gl_INLINE])
243 PSPP_CHECK_CC_OPTION(
245 [AC_CACHE_CHECK([whether GSL needs -fgnu89-inline to link],
246 pspp_cv_gsl_needs_fgnu89_inline, [
248 [AC_LANG_PROGRAM([#include <gsl/gsl_math.h>
249 ], [GSL_MAX_INT(1,2);])],
250 [AC_LANG_SOURCE([#include <gsl/gsl_math.h>
252 [pspp_cv_gsl_needs_fgnu89_inline=no],
253 [pspp_cv_gsl_needs_fgnu89_inline=yes])])
254 if test "$pspp_cv_gsl_needs_fgnu89_inline" = "yes"; then
255 CFLAGS="$CFLAGS -fgnu89-inline"
259 AC_DEFUN([PSPP_CHECK_CLICKSEQUENCE],
260 [AC_REQUIRE([AM_INIT_AUTOMAKE]) # Defines MAKEINFO
261 AC_CACHE_CHECK([whether makeinfo supports @clicksequence],
262 [pspp_cv_have_clicksequence],
263 [cat > conftest.texi <<EOF
264 @setfilename conftest.info
265 @clicksequence{File @click{} Open}
267 echo "configure:__oline__: running $MAKEINFO conftest.texi >&AS_MESSAGE_LOG_FD" >&AS_MESSAGE_LOG_FD
268 eval "$MAKEINFO conftest.texi >&AS_MESSAGE_LOG_FD 2>&1"
270 echo "configure:__oline__: \$? = $retval" >&AS_MESSAGE_LOG_FD
271 if test $retval = 0; then
272 pspp_cv_have_clicksequence=yes
274 pspp_cv_have_clicksequence=no
276 rm -f conftest.texi conftest.info])
277 if test $pspp_cv_have_clicksequence = no; then
278 AM_MAKEINFOFLAGS="$AM_MAKEINFOFLAGS -DMISSING_CLICKSEQUENCE"
279 AC_SUBST([AM_MAKEINFOFLAGS])