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configure.ac
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# Process this file with autoconf to produce a configure script.
#
# Hand written file: used as input into GNU Autotools (autoconf).
# This is part of GNU Astronomy Utilities (gnuastro) package.
#
# We use some macros that are distributed as part of the GNU Autoconf
# Archive here. Those macros are all placed in the bootstrapped/m4/
# directory along with those that were imported from Gnulib. The
# ./bootstrap script includes that directory while its running Autoconf so
# we don't need to explicitly call that directory here.
#
# Original author:
# Mohammad Akhlaghi <[email protected]>
# Contributing author(s):
# Copyright (C) 2015-2021, Free Software Foundation, Inc.
#
# Gnuastro is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Gnuastro is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Gnuastro. If not, see <http://www.gnu.org/licenses/>.
# Definitions:
AC_PREREQ([2.69])
AC_INIT([GNU Astronomy Utilities],
m4_esyscmd([bootstrapped/build-aux/git-version-gen \
.tarball-version --prefix "gnuastro_v"]),
[[email protected]], [gnuastro],
[http://www.gnu.org/software/gnuastro/])
AC_CONFIG_AUX_DIR([bootstrapped/build-aux])
AM_INIT_AUTOMAKE([-Wall subdir-objects gnu])
AC_CONFIG_SRCDIR([lib/fits.c])
AC_CONFIG_HEADERS([config.h])
AC_CONFIG_MACRO_DIRS([bootstrapped/m4])
# Library version, see the GNU Libtool manual ("Library interface versions"
# section for the exact definition of each) for
GAL_CURRENT=13
GAL_REVISION=0
GAL_AGE=0
GAL_LT_VERSION="${GAL_CURRENT}:${GAL_REVISION}:${GAL_AGE}"
AC_SUBST(GAL_LT_VERSION)
# Checks for programs.
: ${CFLAGS=""}
: ${CXXFLAGS=""}
AC_PROG_CC
AC_PROG_CXX
AC_PROG_AWK
AC_PROG_SED
gl_EARLY
AM_PROG_AR
LT_INIT
# This macro will let the libraries know that we are now in the Gnuastro
# build system, not on the user's system. While we are building Gnuastro,
# we have the important installation information in 'config.h'. But in the
# user's own programs, this information is defined in
# 'gnuastro/config.h'. With this macro, the installed headers can decide
# if the latter should be included or not. Note that 'gnuastro/config.h'
# is only built at installation time and doesn't exist when building
# Gnuastro. Therefore, this macro must not be defined in a user's program.
AC_DEFINE([IN_GNUASTRO_BUILD], [1], [In building, not usage])
# See if 'make check' should be made with Valgrind. This should be done
# before checking the compilation flags because it can re-write
# 'enable-debug').
AC_ARG_ENABLE(check-with-valgrind,
[AS_HELP_STRING([--enable-check-with-valgrind],
[Run 'make check' programs within Valgrind])],
[AS_IF([test "x$enable_check_with_valgrind" != xno],
[enable_check_with_valgrind=yes])],
[enable_check_with_valgrind=no])
AS_IF([test "x$enable_check_with_valgrind" = "xyes"],
[
enable_debug=yes;
AC_CHECK_PROG(has_valgrind, valgrind, [yes], [no])
AS_IF([test "x$has_valgrind" = "xno"],
[AC_MSG_ERROR([Valgrind not found. Please install it or don't use '--enable-check-with-valgrind'])])
])
AM_CONDITIONAL([COND_CHECK_WITH_VALGRIND], [test "x$enable_check_with_valgrind" = "xyes"])
# Set the compilation flags.
AC_ARG_ENABLE(debug,
[AS_HELP_STRING([--enable-debug],
[No optimization, debug flags, no shared lib.])],
[AS_IF([test "x$enable_debug" != xno], [enable_debug=yes])],
[enable_debug=no])
AS_IF([test "x$enable_debug" = "xyes"],
[cflags_add="-g -O0"; enable_shared=no],
[cflags_add="-O3"])
CFLAGS="-Wall $cflags_add $CFLAGS"
CXXFLAGS="-Wall $cflags_add $CXXFLAGS"
# See if the C++ compiler was present. 'CXX' has already been set by
# 'AC_PROG_CXX' (above). According to the Autoconf manual: "if none of the
# [AC_PROG_CXX] checks succeed, then as a last resort [it will] set 'CXX'
# to 'g++'". Therefore, we can't rely on it to see if the compiler
# executable is actually usable. Therefore tests that rely on it will
# fail. Unfortunately some OSs (like Fedora), don't install 'g++' with
# 'gcc', so it may not always be present. To fix this, here we are just
# using 'AC_CHECK_PROG' to see if the 'CXX' executable is reachable in the
# search path and if it isn't, we'll disable the C++ check during 'make
# check' with an Automake conditional.
AC_CHECK_PROG(has_cxx, $CXX, "yes", "no")
AM_CONDITIONAL([COND_HASCXX], [test "x$has_cxx" = "xyes"])
# Check for pthreads and add the appropriate compilation flags. AX_PTHREAD
# comes from the GNU Autoconf Archive's ax_pthread.m4, see there for the
# documentation.
AX_PTHREAD([],[AC_MSG_ERROR([AC_PACKAGE_NAME Needs POSIX Threads (pthread)])])
CXXFLAGS="$CXXFLAGS $PTHREAD_CFLAGS"
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
LIBS="$PTHREAD_LIBS $LIBS"
CC="$PTHREAD_CC"
# See if the C++ compiler understands '-Qunused-arguments'. AX_PTHREAD adds
# puts this option in 'PTHREAD_CFLAGS' when the C compiler knows this
# option. We then pass it to CFLAGS and CXXFLAGS above. But as reported in
# bug #52490, it can happen that sometimes, the C++ compiler doesn't
# recognize it. So we need to do a separate check for C++.
cxxflags_tmp=
for flg in $CXXFLAGS
do
AS_IF([test "$flg" = \-Qunused-arguments],
[ AC_LANG(C++)
AX_CHECK_COMPILE_FLAG([-Qunused-arguments],
[cxx_Qunused_arguments=yes;
cxxflags_tmp="$cxxflags_tmp $flg"],
[cxx_Qunused_arguments=no])
AC_LANG(C) ],
[ cxxflags_tmp="$cxxflags_tmp $flg"])
done
CXXFLAGS="$cxxflags_tmp"
# Check if 'malloc(0)' returns valid pointer
AC_FUNC_MALLOC
# Check the size of necessary system specific types.
AC_CHECK_SIZEOF([size_t])
AC_SUBST(SIZEOF_SIZE_T, [$ac_cv_sizeof_size_t])
AC_DEFINE_UNQUOTED([GAL_CONFIG_SIZEOF_SIZE_T], [$ac_cv_sizeof_size_t],
[On 32bit will be 4, on 64 bit, will be 8])
AC_CHECK_SIZEOF([long])
AC_SUBST(SIZEOF_LONG, [$ac_cv_sizeof_long])
AC_DEFINE_UNQUOTED([GAL_CONFIG_SIZEOF_LONG], [$ac_cv_sizeof_long],
[On 32bit will be 4, on 64 bit, will be 8])
AC_CHECK_SIZEOF([int])
AC_SUBST(SIZEOF_INT, [$ac_cv_sizeof_int])
AC_DEFINE_UNQUOTED([GAL_CONFIG_SIZEOF_INT], [$ac_cv_sizeof_int],
[It may be 16bit or 32bit])
# By default we assume no warnings
anywarnings=no
# Remove any occurance of the current directory './', '.', or the full
# address of the current directory in PATH. The main problem is the
# 'libtool' executable which Gnuastro builds internally in the top build
# directory. However, we also need to know if the system has libtool or
# not.
AC_MSG_CHECKING(if PATH contains current directory)
oldPATH=$PATH
currpwd=$(pwd)
# The first call to SED will remove any occurance of the current directory:
# './', '.', or the full address.
#
# NOTE 1: We cannot simply remove all '.'s, because hidden directories
# (like the '~/.local' that is suggested for local
# installations) will also be altered.
#
# NOTE 2: An empty string in the list of strings (separated by ':')
# means the current directory. This includes cases like: '::',
# or a leading and trailing ':'. So after all the removals of
# the current directory, we will remove all such cases.
#
# NOTE 3: The SED separator can be any character immediately after 's',
# it doesn't just have to be the commonly used '/'. Since '$pwd'
# will possibly contain many '/'s, it is much more easier to use
# a differen separator ('|' in this call to SED).
PATH=$(AS_ECHO([$PATH]) | $SED -e 's|'"$currpwd"'||g' \
-e 's|\.\.*//*||g' \
-e 's|:\.\.*:|:|g' \
-e 's|\.*$||' \
-e 's|^\.*||' \
-e 's|::*|:|g' \
-e 's|^:||' \
-e 's|:$||' )
AS_IF([test $oldPATH = $PATH],
[ path_warning=no ],
[ path_warning=yes; anywarnings=yes ])
AC_MSG_RESULT( $path_warning )
# Libraries
# ---------
#
# After each library is found, AC_SEARCH_LIBS adds the -lLIBRARY flag to
# the LIBS variable which is then given to all the Makefiles. Each new flag
# is added to the left of the old one so order matters here. Note that the
# LIBS variable is also used in checking the next libraries, so the linking
# with their dependent libraries is done automatically with this order, and
# we don't have to explicitly set the dependency flags.
has_gsl=yes
has_libgit2=1
has_cmath=yes
has_wcslib=yes
has_cfitsio=yes
has_libtiff=yes
has_libjpeg=yes
has_gslcblas=yes
missing_mandatory=no
missing_optional_lib=no
# Keep the original LIBS to re-set in the end.
orig_LIBS="$LIBS"
# Basics of the library linking checks
# ------------------------------------
#
# Outputs of 'AC_LIB_HAVE_LINKFLAGS' (which checks for libraries):
#
# - LIB<NAME>: contains the raw 'libNAME.so' or 'libNAME.a' file for some
# libraries. This is necessary for static libraries, but is problematic
# for shared libraries (they will not be linked to the produced
# library: when you run 'ldd libgnuastro.so', you don't see those that
# were linked with a '.so' file here).
#
# To make things worse, when linking Gnuastro's programs with
# Gnuastro's library, libtool will put raw files ('.a' or '.so' files,
# not '-lNAME') before 'libgnuastro.la' (which depends on them). As a
# result, building shared programs with Gnuastro's library will
# fail. But this is desired for static libraries.
#
# - LTLIB<NAME>: has '-lNAME', along with any necessary RPATH flags for
# the local operating system.
#
# Major environment variables:
#
# - LIBS: is primarily used in the compilation checks of the configure
# script where the host's compiler has full control.
#
# - LDADD: is passed to the rules that build Gnuastro's library and
# programs through the 'CONFIG_LDADD' variable.
#
# Since nothing complex is built during the configure script, we'll just
# populate 'LIBS' with 'LTLIB<NAME>'. However, building the programs and
# library is very complex and we have an even more complex BuildProgram in
# Gnaustro. So we fill 'LDADD' conditionally: 1) for building static
# library/programs, we'll use 'LIB<NAME>'. 2) for building shared
# libraries, we'll use 'LTLIB<NAME>'.
# Why C math library (for things like 'log')? Even though '-lm' is also
# found for GSL below, on some systems (reported on Ubuntu), if we don't
# add it explicitly here, the build will crash because of a failure to link
# with the math functions.
AC_LIB_HAVE_LINKFLAGS([m], [], [#include <math.h>])
AS_IF([test "x$LIBM" = x], [],
[LIBS="$LIBM $LIBS"
AS_IF([ test "x$enable_shared" = "xno" ],
[LDADD="$LIBM $LDADD"],
[LDADD="$LTLIBM $LDADD"]) ])
AC_LIB_HAVE_LINKFLAGS([gsl], [gslcblas], [
#include <gsl/gsl_rng.h>
void junk(void) { gsl_rng_env_setup(); } ])
AS_IF([test "x$LIBGSL" = x],
[missing_mandatory=yes; has_gsl=no; has_gslcblas=no],
[LIBS="$LIBGSL $LIBS"
AS_IF([ test "x$enable_shared" = "xno" ],
[LDADD="$LIBGSL $LDADD"],
[LDADD="$LTLIBGSL $LDADD"]) ])
# Since version 0.42, if 'libcurl' is installed, CFITSIO will link with it
# and thus it will be necessary to explicitly link with libcurl also. If it
# doesn't exist on the system, then CFITSIO won't link with it and there is
# no problem for Gnuastro either. So there is no need to stop the configure
# script if libcurl isn't found.
#
# For static builds, linking libcurl (also built in static-only mode) will
# depend on linking with zlib. So we'll need to also search for that
# also. But if libcurl isn't built in static-only mode, then it will have
# undefined symbols for many libraries (for example libpsl, libidn2,
# librtmp, libldap). So if you intend to make Gnuastro statically, then
# build Libcurl in static-only mode so you won't have to check for all
# these extra libraries here.
#
# Similarly, if the Bzip2 library was activated when building CFITSIO, it
# will be necessary in a static build to CFITSIO.
AC_LIB_HAVE_LINKFLAGS([z], [], [#include <zlib.h>])
AS_IF([test "x$LIBZ" = x], [],
[LIBS="$LIBZ $LIBS"
AS_IF([ test "x$enable_shared" = "xno" ],
[LDADD="$LIBZ $LDADD"],
[LDADD="$LTLIBZ $LDADD"]) ])
AC_LIB_HAVE_LINKFLAGS([bz2], [], [#include <bzlib.h>])
AS_IF([test "x$LIBBZ2" = x], [],
[LIBS="$LIBBZ2 $LIBS"
AS_IF([ test "x$enable_shared" = "xno" ],
[LDADD="$LIBBZ2 $LDADD"],
[LDADD="$LTLIBBZ2 $LDADD"]) ])
AC_LIB_HAVE_LINKFLAGS([curl], [], [#include <curl/curl.h>])
AS_IF([test "x$LIBCURL" = x], [],
[LIBS="$LIBCURL $LIBS"
AS_IF([ test "x$enable_shared" = "xno" ],
[LDADD="$LIBCURL $LDADD"],
[LDADD="$LTLIBCURL $LDADD"]) ])
AC_LIB_HAVE_LINKFLAGS([cfitsio], [], [
#include <fitsio.h>
void junk(void) {
int status;
fitsfile *f;
ffopen(&f, "junk", READONLY, &status);} ])
AS_IF([test "x$LIBCFITSIO" = x],
[missing_mandatory=yes; has_cfitsio=no],
[LIBS="$LIBCFITSIO $LIBS"
AS_IF([ test "x$enable_shared" = "xno" ],
[LDADD="$LIBCFITSIO $LDADD"],
[LDADD="$LTLIBCFITSIO $LDADD"]) ])
AC_LIB_HAVE_LINKFLAGS([wcs], [], [
#include <wcslib/wcshdr.h>
void junk(void) {
int nreject, nwcs;
struct wcsprm *wcs;
char *header="JUNK";
wcspih(header, 1, 0, 0, &nreject, &nwcs, &wcs);
} ])
AS_IF([test "x$LIBWCS" = x],
[missing_mandatory=yes; has_wcslib=no],
[LIBS="$LIBWCS $LIBS"
AS_IF([ test "x$enable_shared" = "xno" ],
[LDADD="$LIBWCS $LDADD"],
[LDADD="$LTLIBWCS $LDADD"]) ])
AC_ARG_WITH([libjpeg],
[AS_HELP_STRING([--without-libjpeg],
[disable support for libjpeg])],
[], [with_libjpeg=yes])
AS_IF([test "x$with_libjpeg" != xno],
[ AC_LIB_HAVE_LINKFLAGS([jpeg], [], [
#include <stdio.h>
#include <stdlib.h>
#include <jpeglib.h>
void junk(void) {
struct jpeg_decompress_struct cinfo;
jpeg_create_decompress(&cinfo);
} ]) ])
AS_IF([test "x$LIBJPEG" = x],
[missing_optional_lib=yes; has_libjpeg=no; anywarnings=yes],
[LIBS="$LIBJPEG $LIBS"
AS_IF([ test "x$enable_shared" = "xno" ],
[LDADD="$LIBJPEG $LDADD"],
[LDADD="$LTLIBJPEG $LDADD"]) ])
AM_CONDITIONAL([COND_HASLIBJPEG], [test "x$has_libjpeg" = "xyes"])
AC_ARG_WITH([libtiff],
[AS_HELP_STRING([--without-libtiff],
[disable support for libtiff])],
[], [with_libtiff=yes])
AS_IF([test "x$with_libtiff" != xno],
[ AC_LIB_HAVE_LINKFLAGS([lzma], [], [#include <lzma.h>])
AC_LIB_HAVE_LINKFLAGS([tiff], [], [
#include <tiffio.h>
void junk(void) {TIFF *tif=TIFFOpen("junk", "r");} ])
])
AS_IF([test "x$LIBTIFF" = x],
[missing_optional_lib=yes; has_libtiff=no; anywarnings=yes],
[LIBS="$LIBTIFF $LIBS"
AS_IF([ test "x$enable_shared" = "xno" ],
[LDADD="$LIBTIFF $LDADD"],
[LDADD="$LTLIBTIFF $LDADD"]) ])
AM_CONDITIONAL([COND_HASLIBTIFF], [test "x$has_libtiff" = "xyes"])
# libgit2 (very old versions of libgit2 don't have the 'git_libgit2_init').
AC_ARG_WITH([libgit2],
[AS_HELP_STRING([--without-libgit2],
[disable support for libgit2])],
[], [with_libgit2=yes])
AS_IF([test "x$with_libgit2" != xno],
[ AC_LIB_HAVE_LINKFLAGS([git2], [], [
#include <git2.h>
void junk(void) {git_libgit2_init();} ])
])
AS_IF([test "x$LIBGIT2" = x],
[missing_optional_lib=yes; has_libgit2=0],
[LIBS="$LIBGIT2 $LIBS"
AS_IF([ test "x$enable_shared" = "xno" ],
[LDADD="$LIBGIT2 $LDADD"],
[LDADD="$LTLIBGIT2 $LDADD"]) ])
AC_DEFINE_UNQUOTED([GAL_CONFIG_HAVE_LIBGIT2], [$has_libgit2],
[libgit2 is installed on the system])
AS_IF([test "x$has_libgit2" = "x1"], [], [anywarnings=yes])
# End of library linking list
# ---------------------------
#
# If we are in static mode, convert any string ending in 'libpthread.a' to
# '-lpthread' (because pthread is part of the C library and atleast in
# Gnuastro's usage so far, can't be statically linked (gives errors on
# undefined symbols like '_dl_pagesize' or '_dl_init_static_tls').
AS_IF([test "x$enable_shared" = "xno"],
[ LDADD=$(AS_ECHO(["$LDADD"]) \
| $AWK '{for(i=1; i<=NF; ++i) { \
if( $i ~ /libpthread.a/ ) \
$i="-lpthread" } \
print $0}')
])
# Higher-level library tests
# --------------------------
#
# Once we know that a library exsits, we need to check if it has some
# features or not. This must be done _after_ checking the existance of
# _all_ the libraries, because they may add elements to 'LIBS'/'LDADD' that
# causes possibly different versions of the libraries to be read.
# GSL's 'gsl_interp_steffen' isn't a function. So we'll need to use
# 'AC_LINK_IFELSE'. However, AC_LINK_IFELSE doesn't use 'LDADD', so we'll
# have to temporarily add 'LDADD' to LIBS, then set it back to the
# original.
AC_MSG_CHECKING(if GSL supports Steffen splines)
AC_LINK_IFELSE([AC_LANG_PROGRAM(
[[#include <gsl/gsl_interp.h>]],
[[const gsl_interp_type *itype=gsl_interp_steffen;]])],
[AC_MSG_RESULT(yes)
gsl_version_old=no],
[AC_MSG_RESULT(no)
gsl_version_old=yes; anywarnings=yes;])
# If the CFITSIO library has the 'fits_is_reentrant' function (it was added
# since version 3.30 of April 2012).
AC_CHECK_LIB([cfitsio], [fits_is_reentrant], [has_fits_is_reentrant=1],
[has_fits_is_reentrant=0], [-lm])
AC_DEFINE_UNQUOTED([GAL_CONFIG_HAVE_FITS_IS_REENTRANT],
[$has_fits_is_reentrant],
[CFITSIO has the fits_is_reentrant function])
AC_SUBST(HAVE_FITS_IS_REENTRANT, [$has_fits_is_reentrant])
# If the WCS library has the 'wcslib_version' function.
AC_CHECK_LIB([wcs], [wcslib_version], [has_wcslib_version=1],
[has_wcslib_version=0], [-lcfitsio -lm])
AC_DEFINE_UNQUOTED([GAL_CONFIG_HAVE_WCSLIB_VERSION], [$has_wcslib_version],
[WCSLIB comes with wcslib_version])
AC_SUBST(HAVE_WCSLIB_VERSION, [$has_wcslib_version])
# If the WCS library supports distortion
AC_CHECK_HEADER([wcslib/dis.h], [has_wcslib_dis_h=1],
[has_wcslib_dis_h=0; anywarnings=yes])
AC_DEFINE_UNQUOTED([GAL_CONFIG_HAVE_WCSLIB_DIS_H], [$has_wcslib_dis_h],
[WCSLIB has distortion header in dis.h])
AC_SUBST(HAVE_WCSLIB_DIS_H, [$has_wcslib_dis_h])
AM_CONDITIONAL([COND_HASWCSDIS_H], [test "x$has_wcslib_dis_h" = "x1"])
# If the WCS library has the 'mjdref' element.
AC_CHECK_MEMBER([struct wcsprm.mjdref], [has_wcslib_mjdref=1],
[has_wcslib_mjdref=0], [[#include <wcslib/wcs.h>]])
AC_DEFINE_UNQUOTED([GAL_CONFIG_HAVE_WCSLIB_MJDREF], [$has_wcslib_mjdref],
[WCSLIB comes with wcsprm.mjdref])
AC_SUBST(HAVE_WCSLIB_MJDREF, [$has_wcslib_mjdref])
# If the WCS library has the OBSFIX macro.
AC_CHECK_DECL(OBSFIX, [has_wcslib_obsfix=1],
[has_wcslib_obsfix=0], [[#include <wcslib/wcsfix.h>]])
AC_DEFINE_UNQUOTED([GAL_CONFIG_HAVE_WCSLIB_OBSFIX], [$has_wcslib_obsfix],
[WCSLIB comes with OBSFIX macro])
AC_SUBST(HAVE_WCSLIB_OBSFIX, [$has_wcslib_obsfix])
# If the WCS library has the 'wcsccs' function.
AC_CHECK_LIB([wcs], [wcsccs], [has_wcslib_wcsccs=1],
[has_wcslib_wcsccs=0; anywarnings=yes], [-lcfitsio -lm])
AC_DEFINE_UNQUOTED([GAL_CONFIG_HAVE_WCSLIB_WCSCCS], [$has_wcslib_wcsccs],
[WCSLIB comes with wcsccs])
AC_SUBST(HAVE_WCSLIB_WCSCCS, [$has_wcslib_wcsccs])
# If the pthreads library has 'pthread_barrier_wait'.
AC_CHECK_LIB([pthread], [pthread_barrier_wait], [has_pthread_barrier=1],
[has_pthread_barrier=0])
AC_DEFINE_UNQUOTED([GAL_CONFIG_HAVE_PTHREAD_BARRIER], [$has_pthread_barrier],
[System has pthread_barrier])
AC_SUBST(HAVE_PTHREAD_BARRIER, [$has_pthread_barrier])
# Programs
# --------
# Help2man:
AC_CHECK_PROG(has_help2man, help2man, [yes], [no])
AM_CONDITIONAL([COND_HASHELP2MAN], [test "x$has_help2man" = "xyes"])
# cURL:
AC_CHECK_PROG(has_curl, curl, [yes], [no])
AS_IF([test "x$has_curl" = "xno"], [anywarnings=yes])
# Check the libtool executable on the system. Note that Gnuastro also ships
# with a version of Libtool. We don't want Gnuastro's Libtool, here we want
# to see if the system has libtool independent of Gnuastro so BuildProgram
# can use it later. We also need to check some shells to run libtool within
# them.
AC_CHECK_PROG(has_libtool, libtool, [yes], [no])
AC_CHECK_PROG(has_bash, bash, [yes], [no])
AC_CHECK_PROG(has_zsh, zsh, [yes], [no])
# If Libtool is present, make sure it is GNU Libtool
AS_IF([test "x$has_libtool" = "xyes"],
[ AC_MSG_CHECKING(if libtool executable is GNU)
AS_IF( libtool --version 2> /dev/null | grep GNU 2>&1 > /dev/null,
[has_gnulibtool=yes], [has_gnulibtool=no])
AC_MSG_RESULT( $has_gnulibtool )],
[ has_gnulibtool=no ])
# When either the 'libtool' executable isn't GNU or it doesn't exist, then
# look for 'glibtool'.
AS_IF([test "x$has_gnulibtool" = "xyes"],
[ gnulibtool_exec=libtool ],
[ AC_CHECK_PROG(has_glibtool, glibtool, [yes], [no])
AS_IF( [test "x$has_glibtool" = "xyes"],
[has_gnulibtool=yes; gnulibtool_exec=glibtool],
[has_gnulibtool=no; anywarnings=yes] ) ])
# Older versions of GNU Libtool have problems with the 'dash' shell (a
# minimalist shell) and will crash (due to not having the '+=' operator),
# see bug #54430. So we need to check if the system's libtool and shell
# (called by 'sh' as in C's 'system' function within BuildProgram) can work
# with each other. If not, we need to search for Bash and tell BuildProgram
# to use Bash instead of the default. But older versions of Bash also don't
# support this operator, so we'll have to check with Bash is well.
libtool_shell="none"
AS_IF([test "x$has_gnulibtool" = "xyes"],
[
AC_MSG_CHECKING(for shell to use with libtool)
# Make a C source file and run Libtool on it with the specified
# shells.
outname=libtool_shell_test
cprog=libtool_shell_test.c
AS_ECHO(["#include <stdio.h>"]) > $cprog
AS_ECHO(["int main(void){printf(\"success\\n\"); return 0;}"]) >> $cprog
ltargs="--quiet --tag=CC --mode=link $CC $cprog -O3 -o $outname"
# Check the shells, starting with known shells and ultimately
# trying with 'sh' (can be any shell).
AS_IF([test "x$has_bash" = "xyes"],
[AS_IF(bash -c "$gnulibtool_exec $ltargs" > /dev/null 2>&1,
[libtool_shell="bash"],
[bash_version=$BASH_VERSION]) ],
[AS_IF([test "x$has_zsh" = "xyes"],
[AS_IF(zsh -c "$gnulibtool_exec $ltargs" > /dev/null 2>&1,
[libtool_shell="zsh"]) ],
[AS_IF(sh -c "$gnulibtool_exec $ltargs" > /dev/null 2>&1,
[libtool_shell="sh"]) ]) ])
# Clean up: note that no output might have been generated (when no
# proper shell was found). Therefore, for deleting the output file,
# we'll call 'rm' with '-f' so it doesn't complain with an error in
# such cases.
rm $cprog
rm -f $outname
AC_MSG_RESULT($libtool_shell)
])
# If a good shell to call Libtool could be found, then Libtool is usable
# within a program (BuildProgram in this case).
AS_IF([test "x$libtool_shell" = "xnone"],
[
anywarnings=yes;
usable_libtool=no;
AS_IF([test "x$bash_version" = x], [junk=1],
[AS_ECHO(["GNU Bash was found but not a suitable version: $bash_version"]) ])
],
[
usable_libtool=yes
AC_DEFINE_UNQUOTED([GAL_CONFIG_GNULIBTOOL_SHELL], ["$libtool_shell"],
[Shell program to use with GNU Libtool])
AC_DEFINE_UNQUOTED([GAL_CONFIG_GNULIBTOOL_EXEC], ["$gnulibtool_exec"],
[The executable to call GNU Libtool])
])
# Check Ghostscript: "-dPDFFitPage" option to Ghostscript, used by the
# library to convert from EPS to PDF, has been introduced in Ghostscript
# 9.10. Make sure we have at least that version.
#
# Below, only when Ghostscript exists, we check its version and only if its
# version is larger than 9.10, does Gnuastro finally assume the existence
# of Ghostscript. AX_COMPARE_VERSION comes from the GNU Autoconf Archive's
# ax_compare_version.m4.
AC_CHECK_PROG(has_ghostscript, gs, [yes], [no])
AS_IF([test "x$has_ghostscript" = "xyes"],
[AC_MSG_CHECKING(Ghostscript version)
gsversion=$(gs --version)
AX_COMPARE_VERSION([9.10], [gt], [$gsversion], [has_ghostscript=no])
AC_MSG_RESULT( $gsversion )])
# Note: 'has_ghostscript' can be set to 'no' within the AS_IF above, so
# 'anywarnings' cannot be an [RUN-IF-FALSE] argument to the AS_IF above.
AS_IF([test "x$has_ghostscript" = "xno"], [anywarnings=yes])
AM_CONDITIONAL([COND_HASGHOSTSCRIPT], [test "x$has_ghostscript" = "xyes"])
# If any necessary dependency is missing inform the user and abort.
AS_IF([test "x$missing_mandatory" = "xyes"],
[
# List missing packages: print the GSL CBLAS message only if GSL is
# present. Otherwise, it is just confusing for the users (CBLAS
# will be installed with GSL). The CBLAS message is only
# interesting if the GSL test has passed.
AS_ECHO([""])
AS_ECHO(["Missing MANDATORY dependencies (necessary to continue):"])
AS_IF([test "x$has_cmath" = "xno"],
[ AS_ECHO([" - C library (math): This may be the cause of all other failures."]) ])
AS_IF([test "x$has_gsl" = "xno"],
[ AS_ECHO([" - GNU Scientific Library (GSL): https://www.gnu.org/software/gsl"]) ],
[ AS_IF([test "x$has_gslcblas" = "xno"],
[ AS_ECHO([" - The BLAS support of GNU Scientific Library (GSL). This should have"])
AS_ECHO([" been installed along with GSL. Try re-installing GSL."]) ]) ])
AS_IF([test "x$has_cfitsio" = "xno"],
[ AS_ECHO([" - CFITSIO: https://heasarc.gsfc.nasa.gov/fitsio"]) ])
AS_IF([test "x$has_wcslib" = "xno"],
[ AS_ECHO([" - WCSLIB: http://www.atnf.csiro.au/people/mcalabre/WCS"]) ])
# Optional dependencies:
AS_IF([test "x$anywarnings" = xyes],
[
AS_ECHO([""])
AS_ECHO(["OPTIONAL warnings/dependencies (for improved functionality):"])
AS_IF([test "x$gsl_version_old" = "xyes"],
[ AS_ECHO([" - Old GSL version: https://www.gnu.org/s/gsl"]) ])
AS_IF([test "x$has_libjpeg" = "xno"],
[ AS_ECHO([" - Missing Libjpeg (JPEG files): http://ijg.org"]) ])
AS_IF([test "x$has_libtiff" = "xno"],
[ AS_ECHO([" - Missing Libtiff (TIFF files): http://libtiff.maptools.org"]) ])
AS_IF([test "x$has_libgit2" = "x0"],
[ AS_ECHO([" - Missing Libgit2: https://libgit2.org"]) ])
AS_IF([test "x$has_curl" = "x0"],
[ AS_ECHO([" - Missing cURL: https://curl.haxx.se"]) ])
AS_IF([test "x$usable_libtool" = "xno"],
[ AS_ECHO([" - Unusable GNU Libtool: https://www.gnu.org/s/libtool"])
AS_IF([test "x$has_gnulibtool" = "xyes"],
[ AS_ECHO([" -- GNU Libtool is present, tested shells not supported."]) ])
AS_IF([test "x$has_libtool" = "xyes"],
[ AS_ECHO([" -- A libtool implementation was found, but it isn't GNU."]) ])
])
AS_IF([test "x$has_ghostscript" = "xno"],
[ AS_ECHO([" - Missing GPL Ghostscript (v9.10 or later): https://www.ghostscript.com"])])
])
# Suggestions on fixing the problem.
AS_ECHO([""])
AS_ECHO(["You can use your package manager for easy and fast installation of all"])
AS_ECHO(["dependencies in one command. See the link below:"])
AS_ECHO([" https://www.gnu.org/s/gnuastro/manual/html_node/Dependencies-from-package-managers.html"])
AS_ECHO([""])
AS_ECHO(["If you have already installed a dependency (for example in '/install/path'),"])
AS_ECHO(["but this script can't link with it, add the path to the LDFLAGS, CPPFLAGS and"])
AS_ECHO(["LD_LIBRARY_PATH environment variables before running configure. For example"])
AS_ECHO(["with the following commands (just correct the '/install/path' part)."])
AS_ECHO([" $ export LDFLAGS=\"\$LDFLAGS -L/install/path/lib\""])
AS_ECHO([" $ export CPPFLAGS=\"\$CPPFLAGS -I/install/path/include\""])
AS_ECHO([" $ export LD_LIBRARY_PATH=\"\$LD_LIBRARY_PATH:/install/path/lib\""])
AS_ECHO([""])
AS_ECHO(["[TIP:] Put these commands in your startup file (for example '~/.bashrc') to"])
AS_ECHO(["avoid similar problems later. See the link below to learn more:"])
AS_ECHO([" https://www.gnu.org/s/gnuastro/manual/html_node/Installation-directory.html"])
AS_ECHO([""])
AS_ECHO([""])
AC_MSG_ERROR([Mandatory dependency(s) missing, === SEE MESSAGE ABOVE ===.])
])
# Gnulib checks:
gl_INIT
# Check if Gnulib tests should be done:
AC_ARG_ENABLE([gnulibcheck],
[AS_HELP_STRING([--enable-gnulibcheck],
[In 'make check', also test GNU Gnulib.])],
[enable_gnulibcheck=yes], [enable_gnulibcheck=no])
AM_CONDITIONAL([COND_GNULIBCHECK], [test $enable_gnulibcheck = yes])
# Gnulib checks for the proper name for the C99 equivalent 'restrict'
# keyword and puts it in the 'ac_cv_c_restrict' variable. If none exists,
# it will put a 'no' inside of this variable. As described in the output
# 'bootstrapped/m4/gnulib-common.m4', this is only necessary until Autoconf
# 2.70 is released. Afterwards, we can use AC_C_RESTRICT.
AS_IF([test "x$ac_cv_c_restrict" = "xno"],
[gal_restrict_replace=], [gal_restrict_replace=$ac_cv_c_restrict])
AC_SUBST(RESTRICT_REPLACEMENT, [$gal_restrict_replace])
# Set the one general parameters:
AC_DEFINE_UNQUOTED([CONF_POSTFIX], [".conf"], [Configuration file post fix.])
AC_DEFINE_UNQUOTED([USERCONFIG_DIR], [".local/etc"], [User data dir.])
AC_DEFINE_UNQUOTED([CONF_SHOWFMT], [" %-20s"],
[Configuration file name format.])
# Read arguments about which programs to install. After checking if
# the argument was actually called, remove any value the user might
# have given by setting them to "yes" if they are not "no". These
# options don't accept arguments.
ayes=false
AC_ARG_ENABLE([arithmetic],
[AS_HELP_STRING([--enable-arithmetic],
[Install Arithmetic and other enabled programs.])],
[AS_IF([test "x$enable_arithmetic" != xno],
[enable_arithmetic=yes; ayes=true])],
[enable_arithmetic=notset])
AC_ARG_ENABLE([buildprog],
[AS_HELP_STRING([--enable-buildprog],
[Install BuildProgram and other enabled programs.])],
[AS_IF([test "x$enable_buildprog" != xno],
[enable_buildprog=yes; ayes=true])],
[enable_buildprog=notset])
AC_ARG_ENABLE([convertt],
[AS_HELP_STRING([--enable-convertt],
[Install ConvertType and other enabled programs.])],
[AS_IF([test "x$enable_convertt" != xno],
[enable_convertt=yes; ayes=true])],
[enable_convertt=notset])
AC_ARG_ENABLE([convolve],
[AS_HELP_STRING([--enable-convolve],
[Install Convolve and other enabled programs.])],
[AS_IF([test "x$enable_convolve" != xno],
[enable_cognvolve=yes; ayes=true])],
[enable_convolve=notset])
AC_ARG_ENABLE([cosmiccal],
[AS_HELP_STRING([--enable-cosmiccal],
[Install CosmicCalculator and other enabled programs.])],
[AS_IF([test "x$enable_cosmiccal" != xno],
[enable_cosmiccal=yes; ayes=true])],
[enable_cosmiccal=notset])
AC_ARG_ENABLE([crop],
[AS_HELP_STRING([--enable-crop],
[Install Crop and other enabled programs.])],
[AS_IF([test "x$enable_crop" != xno],
[enable_crop=yes; ayes=true])],
[enable_crop=notset])
AC_ARG_ENABLE([fits],
[AS_HELP_STRING([--enable-fits],
[Install Fits and other enabled programs.])],
[AS_IF([test "x$enable_fits" != xno],
[enable_fits=yes; ayes=true])],
[enable_fits=notset])
AC_ARG_ENABLE([match],
[AS_HELP_STRING([--enable-match],
[Install Match and other enabled programs.])],
[AS_IF([test "x$enable_match" != xno],
[enable_match=yes; ayes=true])],
[enable_match=notset])
AC_ARG_ENABLE([mkcatalog],
[AS_HELP_STRING([--enable-mkcatalog],
[Install MakeCatalog and other enabled programs.])],
[AS_IF([test "x$enable_mkcatalog" != xno],
[enable_mkcatalog=yes; ayes=true])],
[enable_mkcatalog=notset])
AC_ARG_ENABLE([mknoise],
[AS_HELP_STRING([--enable-mknoise],
[Install MakeNoise and other enabled programs.])],
[AS_IF([test "x$enable_mknoise" != xno],
[enable_mknoise=yes; ayes=true])],
[enable_mknoise=notset])
AC_ARG_ENABLE([mkprof],
[AS_HELP_STRING([--enable-mkprof],
[Install MakeProfile and other enabled programs.])],
[AS_IF([test "x$enable_mkprof" != xno],
[enable_mkprof=yes; ayes=true])],
[enable_mkprof=notset])
AC_ARG_ENABLE([noisechisel],
[AS_HELP_STRING([--enable-noisechisel],
[Install NoiseChisel and other enabled programs.])],
[AS_IF([test "x$enable_noisechisel" != xno],
[enable_noisechisel=yes; ayes=true])],
[enable_noisechisel=notset])
AC_ARG_ENABLE([query],
[AS_HELP_STRING([--enable-query],
[Install query and other enabled packages.])],
[AS_IF([test "x$enable_query" != xno],
[enable_query=yes; ayes=true])],
[enable_query=notset])
AC_ARG_ENABLE([segment],
[AS_HELP_STRING([--enable-segment],
[Install Segment and other enabled programs.])],
[AS_IF([test "x$enable_segment" != xno],
[enable_segment=yes; ayes=true])],
[enable_segment=notset])
AC_ARG_ENABLE([statistics],
[AS_HELP_STRING([--enable-statistics],
[Install Statistics and other enabled programs.])],
[AS_IF([test "x$enable_statistics" != xno],
[enable_statistics=yes; ayes=true])],
[enable_statistics=notset])
AC_ARG_ENABLE([table],
[AS_HELP_STRING([--enable-table],
[Install Table and other enabled programs.])],
[AS_IF([test "x$enable_table" != xno],
[enable_table=yes; ayes=true])],
[enable_table=notset])
#AC_ARG_ENABLE([TEMPLATE],
# [AS_HELP_STRING([--enable-TEMPLATE],
# [Install TEMPLATE and other enabled packages.])],
# [AS_IF([test "x$enable_TEMPLATE" != xno],
# [enable_TEMPLATE=yes; ayes=true])],
# [enable_TEMPLATE=notset])
AC_ARG_ENABLE([warp],
[AS_HELP_STRING([--enable-warp],
[Install Warp and other enabled programs.])],
[AS_IF([test "x$enable_warp" != xno],
[enable_warp=yes; ayes=true])],
[enable_warp=notset])
# If we had a "ayes" variable to be "true" if there was a 'yes'. So any
# program that is not explicitly requested must be ignored and vice versa
# (if no programs were explicitly requested, then enable all that weren't
# disabled).
AS_IF([test $ayes = true ],
[
AS_IF([test $enable_arithmetic = notset], [enable_arithmetic=no])
AS_IF([test $enable_buildprog = notset], [enable_buildprog=no])
AS_IF([test $enable_convertt = notset], [enable_convertt=no])
AS_IF([test $enable_convolve = notset], [enable_convolve=no])
AS_IF([test $enable_cosmiccal = notset], [enable_cosmiccal=no])
AS_IF([test $enable_crop = notset], [enable_crop=no])
AS_IF([test $enable_fits = notset], [enable_fits=no])
AS_IF([test $enable_match = notset], [enable_match=no])
AS_IF([test $enable_mkcatalog = notset], [enable_mkcatalog=no])
AS_IF([test $enable_mknoise = notset], [enable_mknoise=no])
AS_IF([test $enable_mkprof = notset], [enable_mkprof=no])
AS_IF([test $enable_noisechisel = notset], [enable_noisechisel=no])
AS_IF([test $enable_query = notset], [enable_query=no])
AS_IF([test $enable_segment = notset], [enable_segment=no])
AS_IF([test $enable_statistics = notset], [enable_statistics=no])
AS_IF([test $enable_table = notset], [enable_table=no])
# AS_IF([test $enable_TEMPLATE = notset], [enable_TEMPLATE=no])
AS_IF([test $enable_warp = notset], [enable_warp=no])
],
[
AS_IF([test $enable_arithmetic = notset], [enable_arithmetic=yes])
AS_IF([test $enable_buildprog = notset], [enable_buildprog=yes])
AS_IF([test $enable_convertt = notset], [enable_convertt=yes])
AS_IF([test $enable_convolve = notset], [enable_convolve=yes])
AS_IF([test $enable_cosmiccal = notset], [enable_cosmiccal=yes])
AS_IF([test $enable_crop = notset], [enable_crop=yes])
AS_IF([test $enable_fits = notset], [enable_fits=yes])
AS_IF([test $enable_match = notset], [enable_match=yes])
AS_IF([test $enable_mkcatalog = notset], [enable_mkcatalog=yes])
AS_IF([test $enable_mknoise = notset], [enable_mknoise=yes])
AS_IF([test $enable_mkprof = notset], [enable_mkprof=yes])
AS_IF([test $enable_noisechisel = notset], [enable_noisechisel=yes])
AS_IF([test $enable_query = notset], [enable_query=yes])
AS_IF([test $enable_segment = notset], [enable_segment=yes])
AS_IF([test $enable_statistics = notset], [enable_statistics=yes])
AS_IF([test $enable_table = notset], [enable_table=yes])
# AS_IF([test $enable_TEMPLATE = notset], [enable_TEMPLATE=yes])
AS_IF([test $enable_warp = notset], [enable_warp=yes])
]
)
# BuildProgram depends on the presence of GNU Libtool, if it isn't present,
# then don't build it.
AS_IF([test "x$usable_libtool" = "xno"], [enable_buildprog=no])
# Make the enable_package values available for the Makefile:
AM_CONDITIONAL([COND_ARITHMETIC], [test $enable_arithmetic = yes])
AM_CONDITIONAL([COND_BUILDPROG], [test $enable_buildprog = yes])
AM_CONDITIONAL([COND_CONVERTT], [test $enable_convertt = yes])
AM_CONDITIONAL([COND_CONVOLVE], [test $enable_convolve = yes])
AM_CONDITIONAL([COND_COSMICCAL], [test $enable_cosmiccal = yes])
AM_CONDITIONAL([COND_CROP], [test $enable_crop = yes])
AM_CONDITIONAL([COND_FITS], [test $enable_fits = yes])
AM_CONDITIONAL([COND_MATCH], [test $enable_match = yes])
AM_CONDITIONAL([COND_MKCATALOG], [test $enable_mkcatalog = yes])
AM_CONDITIONAL([COND_MKNOISE], [test $enable_mknoise = yes])