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configure.ac
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dnl Process this file with autoconf to produce a configure script.
dnl
########################################################################
##
## Copyright (C) 1993-2025 The Octave Project Developers
##
## See the file COPYRIGHT.md in the top-level directory of this
## distribution or <https://octave.org/copyright/>.
##
## This file is part of Octave.
##
## Octave 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.
##
## Octave 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 Octave; see the file COPYING. If not, see
## <https://www.gnu.org/licenses/>.
##
########################################################################
### Initialize Autoconf
AC_PREREQ([2.65])
AC_INIT([GNU Octave], [11.0.0], [https://bugs.octave.org], [octave],
[https://www.octave.org])
### Declare version numbers
dnl Note that the version number is duplicated here and in AC_INIT because
dnl AC_INIT requires it to be static, not computed from shell variables.
## The description of the Octave version number in the etc/HACKING.md
## explains how to update these numbers for release and development
## versions.
OCTAVE_MAJOR_VERSION=11
OCTAVE_MINOR_VERSION=0
OCTAVE_PATCH_VERSION=0
dnl PACKAGE_VERSION is set by the AC_INIT VERSION argument.
OCTAVE_VERSION="$PACKAGE_VERSION"
OCTAVE_COPYRIGHT="Copyright (C) 1993-2025 The Octave Project Developers."
OCTAVE_RELEASE_DATE="2025-03-25"
## The "API version" is used as a way of checking that interfaces in the
## liboctave and libinterp libraries haven't changed in a backwardly
## incompatible way when loading .oct files. A better way to do this is with
## library versioning, but not all systems support it.
##
## NOTE: This macro will be removed in a future version of Octave!
## If you insist on checking for features using a version number, use the
## OCTAVE_MAJOR_VERSION, OCTAVE_MINOR_VERSION, and OCTAVE_PATCH_VERSION
## macros instead.
dnl
dnl FIXME: Since we also set libtool versions for liboctave and libinterp,
dnl perhaps we should be computing the "api version" from those versions numbers
dnl in some way instead of setting it independently here.
OCTAVE_API_VERSION="api-v60"
AC_SUBST(OCTAVE_MAJOR_VERSION)
AC_SUBST(OCTAVE_MINOR_VERSION)
AC_SUBST(OCTAVE_PATCH_VERSION)
AC_SUBST(OCTAVE_VERSION)
AC_SUBST(OCTAVE_COPYRIGHT)
AC_SUBST(OCTAVE_RELEASE_DATE)
AC_SUBST(OCTAVE_API_VERSION)
dnl FIXME: We should auto-insert the Mercurial changeset ID into the
dnl AC_REVISION field whenever configure.ac is modified.
dnl AC_REVISION($Revision: 1.603 $)
AC_CONFIG_SRCDIR([libinterp/octave.cc])
AC_CONFIG_HEADERS([config.h:config.in.h])
AC_CONFIG_AUX_DIR([build-aux])
AC_CONFIG_MACRO_DIR([m4])
### Initialize Automake
AM_INIT_AUTOMAKE([1.14 -Wno-portability -Wno-override tar-ustar subdir-objects dist-lzip dist-xz])
## Add option to enable silent rules and make silent the default behavior.
AM_SILENT_RULES([yes])
OCTAVE_CANONICAL_HOST
AC_DEFINE(OCTAVE_SOURCE, 1, [Define to 1 if this is Octave.])
AC_USE_SYSTEM_EXTENSIONS
### Make configure args available in variable form for other uses.
config_opts=$ac_configure_args
AC_SUBST(config_opts)
### Set default file locations.
## Where to install libraries like liboctave.a, liboctinterp.a, and other
## architecture-dependent binaries.
OCTAVE_SET_DEFAULT([octlibdir], '${libdir}/octave/${version}')
## Where to put executables to be run by Octave, rather than the user.
## This path usually includes the Octave version and configuration name, so
## that configurations for multiple versions of Octave may be installed at once.
## Windows search paths and relocation oddities require all binaries must be
## installed in the same directory.
case $host_os in
mingw* | msdosmsvc)
OCTAVE_SET_DEFAULT([archlibdir], '${bindir}') ;;
*)
OCTAVE_SET_DEFAULT([archlibdir],
'${libexecdir}/octave/${version}/exec/${canonical_host_type}') ;;
esac
## Where to put executables to be run by Octave, rather than the user, that
## are specific to this site.
OCTAVE_SET_DEFAULT([localarchlibdir],
'${libexecdir}/octave/site/exec/${canonical_host_type}')
OCTAVE_SET_DEFAULT([localapiarchlibdir],
'${libexecdir}/octave/${api_version}/site/exec/${canonical_host_type}')
OCTAVE_SET_DEFAULT([localverarchlibdir],
'${libexecdir}/octave/${version}/site/exec/${canonical_host_type}')
## Where to put object files that will by dynamically loaded.
## This path includes the Octave version and configuration name, so that
## configurations for multiple versions of Octave may be installed at once.
OCTAVE_SET_DEFAULT([octfiledir],
'${libdir}/octave/${version}/oct/${canonical_host_type}')
## Directories that Octave should search for object files that will be
## dynamically loaded and that are specific to this site (i.e., customizations),
## before consulting ${octfiledir}. This should be a colon-separated list of
## directories.
OCTAVE_SET_DEFAULT([localoctfiledir],
'${libdir}/octave/site/oct/${canonical_host_type}')
OCTAVE_SET_DEFAULT([localapioctfiledir],
'${libdir}/octave/site/oct/${api_version}/${canonical_host_type}')
OCTAVE_SET_DEFAULT([localveroctfiledir],
'${libdir}/octave/${version}/site/oct/${canonical_host_type}')
## Where to install Octave's include files.
OCTAVE_SET_DEFAULT([octincludedir], '${includedir}/octave-${version}/octave')
## Where to install the function files distributed with Octave.
## This includes the Octave version, so that the function files for different
## versions of Octave will be installed in separate directories.
OCTAVE_SET_DEFAULT([fcnfiledir], '${datadir}/octave/${version}/m')
## Directories that Octave should search for function files specific to this
## site (i.e., customizations), before consulting ${fcnfiledir}.
## This should be a colon-separated list of directories.
OCTAVE_SET_DEFAULT([localfcnfiledir], '${datadir}/octave/site/m')
OCTAVE_SET_DEFAULT([localapifcnfiledir],
'${datadir}/octave/site/${api_version}/m')
OCTAVE_SET_DEFAULT([localverfcnfiledir], '${datadir}/octave/${version}/site/m')
## Where to install extra files like NEWS and doc-cache.
OCTAVE_SET_DEFAULT([octetcdir], '${datadir}/octave/${version}/etc')
## Where to install the language files for the GUI.
OCTAVE_SET_DEFAULT([octlocaledir], '${datadir}/octave/${version}/locale')
## The full path to the default doc-cache file.
OCTAVE_SET_DEFAULT([doc_cache_file], '${octetcdir}/doc-cache')
## Where to install test files.
OCTAVE_SET_DEFAULT([octtestsdir], '${octetcdir}/tests')
## The full path to the default texi macros file.
OCTAVE_SET_DEFAULT([texi_macros_file], '${octetcdir}/macros.texi')
## Where Octave will search to find image files.
OCTAVE_SET_DEFAULT([imagedir], '${datadir}/octave/${version}/imagelib')
## Where Octave will search for example data files shipped with distribution.
OCTAVE_SET_DEFAULT([octdatadir], '${datadir}/octave/${version}/data')
## Where Octave will search for Qt help files shipped with distribution.
OCTAVE_SET_DEFAULT([octdocdir], '${datadir}/octave/${version}/doc')
## Where Octave will search for fallback font files shipped with distribution.
OCTAVE_SET_DEFAULT([octfontsdir], '${datadir}/octave/${version}/fonts')
## Where Octave will look for startup files.
OCTAVE_SET_DEFAULT([startupfiledir], '${fcnfiledir}/startup')
OCTAVE_SET_DEFAULT([localstartupfiledir], '${localfcnfiledir}/startup')
## Directory where site-wide (global) list of installed packages is kept
OCTAVE_SET_DEFAULT([localapipkgdir],
'${datadir}/octave/site/${api_version}')
## Where Octave will look for man and info files.
OCTAVE_SET_DEFAULT([man1dir], '${mandir}/man1')
OCTAVE_SET_DEFAULT([man1ext], '.1')
OCTAVE_SET_DEFAULT([infofile], '${infodir}/octave.info')
### Check for programs used in building, installing, and running Octave.
## Programs used in configuring Octave.
dnl Find pkg-config executable (sets $PKG_CONFIG)
PKG_PROG_PKG_CONFIG
## And where we will install our own .pc files.
PKG_INSTALLDIR
AC_SUBST([liboctave_pkgconfigdir], [$pkgconfigdir])
AC_SUBST([libinterp_pkgconfigdir], [$pkgconfigdir])
AC_SUBST([libmex_pkgconfigdir], [$pkgconfigdir])
## Programs used in Makefiles.
AC_PROG_AWK
AC_PROG_GREP
AC_PROG_EGREP
OCTAVE_PROG_FIND
OCTAVE_PROG_SED
OCTAVE_PROG_PERL
## Programs used to build parts of Octave.
OCTAVE_PROG_GPERF
OCTAVE_PROG_FLEX
AC_SUBST([LEX_OUTPUT_ROOT], [lex.octave_])
OCTAVE_PROG_BISON
OCTAVE_PROG_MAKEINFO
OCTAVE_PROG_TEXI2DVI
OCTAVE_PROG_TEXI2PDF
OCTAVE_PROG_TAR_REPRODUCIBLE
## Programs used when installing Octave.
AC_PROG_LN_S
AC_PROG_MKDIR_P
AC_PROG_INSTALL
INSTALL_SCRIPT="${INSTALL}"
AC_SUBST(INSTALL_SCRIPT)
## Programs used when running Octave.
OCTAVE_PROG_GHOSTSCRIPT
OCTAVE_PROG_GNUPLOT
OCTAVE_PROG_PAGER
OCTAVE_PROG_PYTHON
## Programs used to generate icons file formats.
OCTAVE_PROG_ICOTOOL
OCTAVE_PROG_RSVG_CONVERT
AM_CONDITIONAL([AMCOND_HAVE_ICON_TOOLS],
[test -n "$ICOTOOL" && test -n "$RSVG_CONVERT"])
### Determine path separator.
sepchar=':'
AC_ARG_WITH([sepchar],
[AS_HELP_STRING([--with-sepchar=<char>],
[use <char> as the path separation character])])
case $with_sepchar in
yes | "")
case $host_os in
mingw* | msdosmsvc)
sepchar=';' ;;
esac
;;
no)
AC_MSG_ERROR([You are required to define a path separation character])
;;
*)
sepchar=$with_sepchar
;;
esac
AC_SUBST(sepchar)
AC_DEFINE_UNQUOTED(SEPCHAR, ['$sepchar'],
[Define this to be the path separator for your system, as a character constant.])
AC_DEFINE_UNQUOTED(SEPCHAR_STR, ["$sepchar"],
[Define this to be the path separator for your system, as a string.])
### Define the path to the shell on the host system.
dnl Most systems will ensure /bin/sh is the default shell so this can be safely
dnl ignored by almost everyone. However, there are exceptions, such as
dnl Android, where this will need to be set.
SHELL_PATH=/bin/sh
AC_ARG_WITH([shell],
[AS_HELP_STRING([--with-shell=SHELL],
[use SHELL as the shell interpreter (default: /bin/sh)])])
case $with_shell in
no)
AC_MSG_ERROR([A shell interpreter is required])
;;
yes | "")
;;
*)
SHELL_PATH=$with_shell
;;
esac
AC_DEFINE_UNQUOTED([SHELL_PATH], ["$SHELL_PATH"],
[Define this to be the path to the shell command interpreter.])
### Determine which C++ compiler to use (we expect to find g++ or clang++).
# AC_PROG_CXX attempts to find the compiler flags for activating support for
# C++11. As of autoconf version 2.71, the source code that it uses for that
# test includes parts that are invalid in C++20.
# We are using AX_CXX_COMPILE_STDCXX to determine the potentially needed flags
# for the C++ version that Octave requires. So, skip the (unnecessary and
# broken) test for C++11 in AC_PROG_CXX by setting the following (undocumented)
# flag:
ac_cv_prog_cxx_cxx11=""
AC_PROG_CXX
AC_PROG_CXXCPP
## Ensure that the C++ compiler fully supports C++17.
## Preferably with GNU extensions if flags are required.
AX_CXX_COMPILE_STDCXX(17, [], mandatory)
ENABLE_STD_PMR_POLYMORPHIC_ALLOCATOR=yes
AC_ARG_ENABLE(std-pmr-polymorphic-allocator,
[AS_HELP_STRING([--disable-std-pmr-polymorphic-allocator],
[build libraries without support for std::pmr::polymorphic_allocator, less efficient transfer of arrays to external MEX files])],
[case $enableval in
yes) ENABLE_STD_PMR_POLYMORPHIC_ALLOCATOR=yes ;;
no) ENABLE_STD_PMR_POLYMORPHIC_ALLOCATOR=no ;;
*) AC_MSG_ERROR([bad value $enableval for --enable-std-pmr-polymorphic-allocator]) ;;
esac])
AC_ARG_WITH([qt],
[AS_HELP_STRING([--with-qt=VER], [use the Qt major version VER])
dnl Second help string must not be indented for correct alignment
AS_HELP_STRING([--without-qt], [don't use Qt libraries, disable Qt GUI])],
[case $withval in
yes | "")
;;
no)
QT_VERSIONS=
;;
*)
QT_VERSIONS="$withval"
;;
esac])
### Determine C++ compiler capabilities.
if test $ENABLE_STD_PMR_POLYMORPHIC_ALLOCATOR = yes; then
OCTAVE_CHECK_STD_PMR_POLYMORPHIC_ALLOCATOR
else
HAVE_STD_PMR_POLYMORPHIC_ALLOCATOR="no"
fi
### Determine which C compiler to use (we expect to find gcc or clang).
AC_PROG_CC
AC_PROG_CPP
## Save and restore CFLAGS and CXXFLAGS globally.
dnl These variables are for users, so we shouldn't be touching them.
dnl Instead, we should set the corresponding AM_ flags (currently by way of the
dnl XTRA_ variables). However, for the duration of the configure script, we
dnl may set CFLAGS and CXXFLAGS so that subsequent tests succeed. Temporary
dnl settings like this are currently done for pthreads and openmp, for example.
original_octave_configure_CFLAGS="$CFLAGS"
original_octave_configure_CXXFLAGS="$CXXFLAGS"
## Check for MSVC
have_msvc=no
case $host_os in
msdosmsvc)
have_msvc=yes
;;
mingw*)
AC_MSG_CHECKING([for MSVC compiler])
AC_PREPROC_IFELSE([AC_LANG_SOURCE([[
#if ! defined (_MSC_VER)
#error "Not MSVC compiler"
#endif
]])],
have_msvc=yes, have_msvc=no)
AC_MSG_RESULT([$have_msvc])
;;
esac
### gnulib initialization: part 1
dnl Must take place immediately after a compiler is determined
gl_EARLY
### Record version number when using g++.
GXX_VERSION=
if test "$GXX" = yes; then
AC_CACHE_CHECK([g++ compiler version number],
[octave_cv_gxx_version],
[octave_cv_gxx_version=[`$CXX -v 2>&1 | $GREP "^.*g.. version" | $SED -e 's/^.*g.. version *//' -e 's/cygnus-//' -e 's/egcs-//' -e 's/ .*//'`]
])
GXX_VERSION=$octave_cv_gxx_version
fi
AC_SUBST(GXX_VERSION)
### Record version number when using gcc.
dnl It might be different from the g++ version number.
GCC_VERSION=
if test "$GCC" = yes; then
AC_CACHE_CHECK([gcc compiler version number],
[octave_cv_gcc_version],
[octave_cv_gcc_version=[`$CC -v 2>&1 | $GREP "^.*gcc version" | $SED -e 's/^.*g.. version *//' -e 's/cygnus-//' -e 's/egcs-//' -e 's/ .*//'`]
])
GCC_VERSION=$octave_cv_gcc_version
fi
AC_SUBST(GCC_VERSION)
## It seems that there are some broken inline assembly functions in GNU libc.
## Since it is uncertain how to test whether Octave is linked against GNU libc,
## just disable them for all platforms.
AC_MSG_NOTICE([defining __NO_MATH_INLINES avoids buggy GNU libc exp function])
AC_DEFINE(__NO_MATH_INLINES, 1,
[Define to 1 if your version of GNU libc has buggy inline assembly code for math functions like exp.])
### Determine the compiler flag necessary to create dependencies.
## Assume GCC.
INCLUDE_DEPS=yes
DEPEND_FLAGS="-M"
DEPEND_EXTRA_SED_PATTERN=""
if test "$GCC" != yes; then
case $canonical_host_type in
sparc-sun-solaris2* | i386-pc-solaris2*)
DEPEND_FLAGS="-xM1"
DEPEND_EXTRA_SED_PATTERN="-e '/\/opt\/SUNWspro/d'"
;;
*-*-msdosmsvc)
;;
*-*-mingw*)
if test $have_msvc = no; then
INCLUDE_DEPS=no
fi
;;
*)
INCLUDE_DEPS=no
;;
esac
fi
AC_SUBST(INCLUDE_DEPS)
AC_SUBST(DEPEND_FLAGS)
AC_SUBST(DEPEND_EXTRA_SED_PATTERN)
### Check for math library.
dnl If found, this will add -lm to LIBS.
dnl Keep this check before the check for the Fortran compiler,
dnl in case -lm is needed to compile Fortran programs.
AC_CHECK_LIB(m, sin)
### Determine the Fortran compiler and how to invoke it.
## Prefer gfortran, but the user's F77 environment variable will override.
AC_PROG_F77([gfortran])
if test -z "$F77"; then
## No gfortran found, search for any other installed compiler.
AC_PROG_F77
fi
if test "$F77" = g77; then
AC_MSG_ERROR([g77 is not a supported Fortran compiler. Select another compiler by setting the environment variable F77 and re-running configure.])
fi
AC_MSG_CHECKING([whether a usable Fortran compiler was found])
if test -n "$F77"; then
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
AC_MSG_ERROR([a Fortran compiler is required to build Octave])
fi
AC_F77_LIBRARY_LDFLAGS
AC_F77_DUMMY_MAIN
AC_F77_WRAPPERS
## Must appear after checks for Fortran compiler.
OCTAVE_CHECK_FORTRAN_SYMBOL_AND_CALLING_CONVENTIONS
## Must appear after checks for all compilers.
OCTAVE_DEFINE_MKOCTFILE_DYNAMIC_LINK_OPTIONS
### Use a 64-bit integer type for array dimensions and indexing, if possible.
AC_CHECK_SIZEOF([int])
AC_DEFINE_UNQUOTED(OCTAVE_SIZEOF_INT, [$ac_cv_sizeof_int],
[Define to the size of int.])
AC_CHECK_SIZEOF([void *])
if test $ac_cv_sizeof_void_p -ge 8; then
ENABLE_64=yes
else
ENABLE_64=no
fi
AC_ARG_ENABLE(64,
[AS_HELP_STRING([--disable-64],
[don't use 64-bit integers for array dimensions and indexing])],
[case $enableval in
yes) ENABLE_64=yes ;;
no) ENABLE_64=no ;;
*) AC_MSG_ERROR([bad value $enableval for --enable-64]) ;;
esac])
if test $ENABLE_64 = yes; then
if test $ac_cv_sizeof_void_p -ge 8; then
OCTAVE_IDX_TYPE=int64_t
else
warn_64_bit="--enable-64 option given but pointers are less than 64-bits wide; disabling 64-bit indexing"
OCTAVE_CONFIGURE_WARNING([warn_64_bit])
OCTAVE_IDX_TYPE=int32_t
ENABLE_64=no
fi
else
OCTAVE_IDX_TYPE=int32_t
fi
AC_SUBST(ENABLE_64)
if test $ENABLE_64 = yes; then
octave_sizeof_octave_idx_type=8
AC_DEFINE(OCTAVE_ENABLE_64, 1,
[Define to 1 to use 64-bit integers for array dimensions and indexing.])
else
octave_sizeof_octave_idx_type=4
fi
AC_DEFINE_UNQUOTED(OCTAVE_SIZEOF_IDX_TYPE, [$octave_sizeof_octave_idx_type],
[Define to the size of the octave_idx_type (8 or 4).])
AC_SUBST(OCTAVE_IDX_TYPE)
AC_DEFINE_UNQUOTED(OCTAVE_IDX_TYPE, [$OCTAVE_IDX_TYPE],
[Define to the type of octave_idx_type (64 or 32 bit signed integer).])
### Check for LLVM or Apple libc++ library.
OCTAVE_LLVM_LIBCXX
### Check for pthread library.
AX_PTHREAD
dnl Include pthread libs and flags early in case other config tests need them.
dnl They seem to be required for the OpenGL tests on Debian systems.
LIBS="$PTHREAD_LIBS $LIBS"
XTRA_CFLAGS="$XTRA_CFLAGS $PTHREAD_CFLAGS"
XTRA_CXXFLAGS="$XTRA_CXXFLAGS $PTHREAD_CFLAGS"
dnl Set these for any other tests that may require them.
dnl They will be reset before output files are generated.
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
CXXFLAGS="$CXXFLAGS $PTHREAD_CFLAGS"
dnl Clang compiler will produce bogus warning during linking only.
AM_CONDITIONAL([AMCOND_CLANG_PTHREAD_WARNING],
[test $ax_cv_PTHREAD_CLANG = yes])
dnl Check if glibc uses wrong stack size
OCTAVE_CHECK_BROKEN_PTHREAD_STACKSIZE
AM_CONDITIONAL([OCTAVE_CHECK_BROKEN_PTHREAD_STACKSIZE],
[test $octave_cv_broken_pthread_stacksize = yes])
### Test whether the compiler supports OpenMP.
dnl This is enabled by default to allow the option of using OpenMP in
dnl loadable modules.
ENABLE_OPENMP=no
check_for_openmp=yes
AC_ARG_ENABLE([openmp],
[AS_HELP_STRING([--disable-openmp],
[disable OpenMP SMP multi-threading])],
[if test "$enableval" = no; then check_for_openmp=no; fi], [])
if test $check_for_openmp = yes; then
AC_LANG_PUSH(C)
AX_OPENMP([XTRA_CFLAGS="$XTRA_CFLAGS $OPENMP_CFLAGS"; ENABLE_OPENMP=yes], [])
AC_LANG_POP(C)
AC_LANG_PUSH(C++)
AX_OPENMP([XTRA_CXXFLAGS="$XTRA_CXXFLAGS $OPENMP_CXXFLAGS"; ENABLE_OPENMP=yes], [])
AC_LANG_POP(C++)
fi
dnl Set these for any other tests that may require them.
dnl They will be reset before output files are generated.
CFLAGS="$CFLAGS $OPENMP_CFLAGS"
CXXFLAGS="$CXXFLAGS $OPENMP_CXXFLAGS"
dnl Define here since it is skipped if the first argument to AX_OPENMP
dnl is not empty.
if test $ENABLE_OPENMP = yes; then
AC_CHECK_HEADERS([omp.h])
AC_CHECK_FUNCS([omp_get_num_threads])
AC_DEFINE(OCTAVE_ENABLE_OPENMP, 1, [Define to 1 if OpenMP is enabled])
fi
### Start determination of shared vs. static libraries.
## Use -static if compiling on Alpha OSF/1 1.3 systems.
case $canonical_host_type in
alpha*-dec-osf1.3)
LD_STATIC_FLAG=-static
;;
esac
if test -n "$LD_STATIC_FLAG"; then
AC_MSG_NOTICE([defining LD_STATIC_FLAG to be $LD_STATIC_FLAG])
fi
AC_SUBST(LD_STATIC_FLAG)
## Check for programs necessary for shared libraries (ar, libtool)
OCTAVE_PROG_AR
ifdef([LT_INIT], [], [
errprint([error: you must have libtool 2.2.2 or a more recent version
])
m4exit([1])])
LT_PREREQ([2.2.2])
LT_INIT([disable-static dlopen win32-dll])
if test $enable_shared = yes; then
SHARED_LIBS=yes
else
SHARED_LIBS=no
# Note: Octave doesn't build currently without shared libraries. And it
# might not work or make sense at all to build static Octave libraries.
# All existing logic for this use-case is still in place in case
# someone would like to base on that to build static versions of the
# libraries.
AC_MSG_ERROR([Building shared libraries is required!])
fi
AC_SUBST(SHARED_LIBS)
if test $enable_static = yes; then
STATIC_LIBS=yes
else
STATIC_LIBS=no
fi
AC_SUBST(STATIC_LIBS)
XTRA_EXTERNAL_SH_LDFLAGS=
case $host_os in
msdosmsvc | mingw* | cygwin*)
FLIBS="$FLIBS -lkernel32"
XTRA_EXTERNAL_SH_LDFLAGS="-Wl,liboctave/external/external.def"
;;
esac
AC_SUBST(XTRA_EXTERNAL_SH_LDFLAGS)
if test $STATIC_LIBS = no && test $SHARED_LIBS = no; then
AC_MSG_ERROR([You can't disable building both static AND shared libraries!])
fi
### More configure argument checking related to linking
case $host_os in
msdosmsvc | mingw* | cygwin* | AIX | BeOS | OS/2 )
DEFAULT_NO_UNDEFINED_LDFLAG="-no-undefined"
;;
*)
DEFAULT_NO_UNDEFINED_LDFLAG=""
;;
esac
AC_ARG_ENABLE([no-undefined],
[AS_HELP_STRING([--enable-no-undefined],
[pass -no-undefined to libtool when linking Octave and its shared libraries. This is done by default for msdosmsvc, mingw*, cygwin*, AIX, BeOS, or OS/2 hosts.])],
[case $enableval in
yes) NO_UNDEFINED_LDFLAG="-no-undefined" ;;
no) NO_UNDEFINED_LDFLAG="" ;;
*) AC_MSG_ERROR([bad value $enableval for --enable-no-undefined]) ;;
esac],
[NO_UNDEFINED_LDFLAG="$DEFAULT_NO_UNDEFINED_LDFLAG"])
AC_SUBST(NO_UNDEFINED_LDFLAG)
case $host_os in
cygwin* )
DEFAULT_LINK_ALL_DEPS="yes"
;;
*)
DEFAULT_LINK_ALL_DEPS="no"
;;
esac
AC_ARG_ENABLE([link-all-dependencies],
[AS_HELP_STRING([--enable-link-all-dependencies],
[link Octave and its shared libraries with all dependencies, not just those immediately referenced (should not be needed on most systems). This is done by default for cygwin* hosts.])],
[case $enableval in
yes) link_all_deps=yes ;;
no) link_all_deps=no ;;
*) AC_MSG_ERROR([bad value $enableval for --enable-link-all-dependencies])
;;
esac],
[link_all_deps="$DEFAULT_LINK_ALL_DEPS"])
AM_CONDITIONAL([AMCOND_LINK_ALL_DEPS], [test $link_all_deps = yes])
AC_ARG_VAR([OCTAVE_CLI_LTLDFLAGS],
[additional flags when linking octave-cli with libtool])
AC_ARG_VAR([OCTAVE_GUI_LTLDFLAGS],
[additional flags when linking octave-gui with libtool])
### Check for BLAS and LAPACK libraries.
## Need to adjust FFLAGS to include correct integer size.
save_FFLAGS="$FFLAGS"
FFLAGS="$FFLAGS $F77_INTEGER_8_FLAG"
OCTAVE_BLAS
AX_LAPACK
## Restore FFLAGS.
FFLAGS="$save_FFLAGS"
## If necessary, try again with -ff2c in FFLAGS
if test $ax_blas_ok = no; then
save_FFLAGS="$FFLAGS"
FFLAGS="-ff2c $FFLAGS $F77_INTEGER_8_FLAG"
OCTAVE_BLAS
AX_LAPACK
## Restore FFLAGS, with -ff2c if that was helpful
if test $ax_blas_ok = yes; then
FFLAGS="-ff2c $save_FFLAGS"
else
FFLAGS="$save_FFLAGS"
fi
fi
## On OSX, try again with a wrapper library (without -ff2c!)
if test $ax_blas_ok = no; then
case $host_os in
darwin*)
## test if wrapper functions help
octave_blaswrap_save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -DUSE_BLASWRAP"
AC_LANG_PUSH(C)
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
#include "liboctave/util/blaswrap.c"
]])],
[mv conftest.$ac_objext blaswrap.$ac_objext
octave_blaswrap_save_BLAS_LIBS="$BLAS_LIBS"
BLAS_LIBS="blaswrap.$ac_objext -framework vecLib"
save_FFLAGS="$FFLAGS"
FFLAGS="$FFLAGS $F77_INTEGER_8_FLAG"
OCTAVE_BLAS
AX_LAPACK
## Restore FFLAGS.
FFLAGS="$save_FFLAGS"
dnl remove temp file
rm -f blaswrap.$ac_objext],
[AC_MSG_FAILURE([cannot compile liboctave/util/blaswrap.c])])
AC_LANG_POP(C)
CFLAGS="$octave_blaswrap_save_CFLAGS"
if test $ax_blas_ok = no; then
BLAS_LIBS="$octave_blaswrap_save_BLAS_LIBS"
else
## wrapper in liboctave/util, remove from BLAS_LIBS
BLAS_LIBS=`echo $BLAS_LIBS | $SED -e 's/blaswrap.[[^ ]]* //g'`
AC_DEFINE(USE_BLASWRAP, 1,
[Define to 1 if BLAS functions need to be wrapped (potentially needed for 64-bit OSX only).])
fi
;;
esac
fi
if test $ax_blas_ok = no || test $ax_lapack_ok = no; then
AC_MSG_ERROR([BLAS and LAPACK libraries are required])
fi
case $ax_cv_blas_integer_size in
4)
HAVE_64_BIT_BLAS=no
;;
8)
HAVE_64_BIT_BLAS=yes
;;
*)
AC_MSG_ERROR([unrecognized BLAS library integer size])
;;
esac
OCTAVE_CHECK_SIZEOF_FORTRAN_INTEGER
if test $octave_cv_sizeof_fortran_integer -ne $ax_cv_blas_integer_size; then
if test $ax_cv_blas_integer_size -eq 8; then
case $F77 in
*gfortran*)
case $F77_INTEGER_8_FLAG in
*-fdefault-integer-8*)
;;
*)
case $FFLAGS in
*-fdefault-integer-8*)
AC_MSG_NOTICE([setting -fdefault-integer-8 in F77_INTEGER_8_FLAG instead of FFLAGS])
FFLAGS=`echo $FFLAGS | $SED 's/-fdefault-integer-8//g'`
F77_INTEGER_8_FLAG="-fdefault-integer-8"
;;
*)
AC_MSG_NOTICE([adding -fdefault-integer-8 to F77_INTEGER_8_FLAG])
F77_INTEGER_8_FLAG="-fdefault-integer-8"
## Invalidate the cache and try again.
$as_unset octave_cv_sizeof_fortran_integer
;;
esac
;;
esac
;;
esac
if test -z "$octave_cv_sizeof_fortran_integer"; then
OCTAVE_CHECK_SIZEOF_FORTRAN_INTEGER
fi
fi
## We intentionally don't attempt to fix things up if the default
## Fortran integer size is 8 but BLAS appears to use 4-byte integers.
if test $octave_cv_sizeof_fortran_integer -ne $ax_cv_blas_integer_size; then
AC_MSG_ERROR([your Fortran compiler must have an option for setting the default integer size to be the same size as your BLAS library uses ($ax_cv_blas_integer_size bytes). See the file INSTALL for more information.])
fi
fi
AC_SUBST(F77_INTEGER_8_FLAG)
case $octave_cv_sizeof_fortran_integer in
8)
OCTAVE_F77_INT_TYPE=int64_t
;;
4)
OCTAVE_F77_INT_TYPE=int32_t
;;
esac
AC_SUBST(OCTAVE_F77_INT_TYPE)
AC_DEFINE_UNQUOTED(OCTAVE_F77_INT_TYPE, [$OCTAVE_F77_INT_TYPE],
[Define to the type of octave_f77_int_type (64 or 32 bit signed integer).])
AC_DEFINE_UNQUOTED(OCTAVE_SIZEOF_F77_INT_TYPE,
[$octave_cv_sizeof_fortran_integer],
[Define to the size of the octave_f77_int_type (8 or 4).])
OCTAVE_F77_FLAG([-ffloat-store], [
AC_MSG_RESULT([setting F77_FLOAT_STORE_FLAG to -ffloat-store])
F77_FLOAT_STORE_FLAG=-ffloat-store
AC_SUBST(F77_FLOAT_STORE_FLAG)
])
if test $ac_cv_f77_compiler_gnu = yes; then
OCTAVE_F77_FLAG([-std=legacy])
fi
BUILD_EXTERNAL_LIBXERBLA=
case $host_os in
msdosmsvc | mingw*)
BUILD_EXTERNAL_LIBXERBLA=yes
;;
esac
AM_CONDITIONAL([AMCOND_BUILD_EXTERNAL_LIBXERBLA],
[test -n "$BUILD_EXTERNAL_LIBXERBLA"])
### Set options for dynamic linking if enabled.
dnl Options set only only if we are building shared libs and some API for
dnl dynamic linking has been detected.
dnl FIXME: A lot of the following duplicates the functionality of
dnl code generated by the dlopen option for LT_INIT.
RDYNAMIC_FLAG=
DL_API_MSG=""
dlopen_api=no
loadlibrary_api=no
case $lt_cv_dlopen in
dlopen)
dlopen_api=yes
DL_API_MSG="dlopen"
AC_DEFINE(HAVE_DLOPEN_API, 1,
[Define to 1 if system has dlopen, dlsym, dlerror, and dlclose for dynamic linking.])
OCTAVE_CXX_FLAG([-rdynamic], [RDYNAMIC_FLAG=-rdynamic])
;;
LoadLibrary)
loadlibrary_api=yes
DL_API_MSG="LoadLibrary"
AC_DEFINE(HAVE_LOADLIBRARY_API, 1,
[Define to 1 if system has LoadLibrary for dynamic linking.])
;;
*)
AC_MSG_ERROR([Octave requires some way to perform dynamic linking.])
;;
esac
DL_LIBS="$lt_cv_dlopen_libs"
if test $SHARED_LIBS = yes; then
LIBOCTINTERP="-loctinterp"
LIBOCTAVE="-loctave"
LIBOCTMEX="-loctmex"
else
LIBOCTINTERP="${top_builddir}/libinterp/liboctinterp.a"
LIBOCTAVE="${top_builddir}/liboctave/liboctave.a"
LIBOCTMEX="${top_builddir}/liboctave/liboctmex.a"
fi
AC_SUBST(RDYNAMIC_FLAG)
AC_SUBST(LIBOCTINTERP)
AC_SUBST(LIBOCTAVE)
AC_SUBST(LIBOCTMEX)
if test "$cross_compiling" = yes && test -n "$ac_tool_prefix"; then
CROSS_TOOL_PREFIX="$ac_tool_prefix"
MKOCTFILE_AR=`echo "$AR" | $SED "s,$CROSS_TOOL_PREFIX,,"`
MKOCTFILE_CC=`echo "$CC" | $SED "s,$CROSS_TOOL_PREFIX,,"`
MKOCTFILE_CXX=`echo "$CXX" | $SED "s,$CROSS_TOOL_PREFIX,,"`
MKOCTFILE_F77=`echo "$F77" | $SED "s,$CROSS_TOOL_PREFIX,,"`
MKOCTFILE_RANLIB=`echo "$RANLIB" | $SED "s,$CROSS_TOOL_PREFIX,,"`
else
MKOCTFILE_AR="$AR"
MKOCTFILE_CC="$CC"
MKOCTFILE_CXX="$CXX"
MKOCTFILE_F77="$F77"
MKOCTFILE_RANLIB="$RANLIB"
fi
AC_MSG_NOTICE([defining CROSS_TOOL_PREFIX to be $CROSS_TOOL_PREFIX])
AC_MSG_NOTICE([defining MKOCTFILE_AR to be $MKOCTFILE_AR])
AC_MSG_NOTICE([defining MKOCTFILE_CC to be $MKOCTFILE_CC])
AC_MSG_NOTICE([defining MKOCTFILE_CXX to be $MKOCTFILE_CXX])
AC_MSG_NOTICE([defining MKOCTFILE_F77 to be $MKOCTFILE_F77])
AC_MSG_NOTICE([defining MKOCTFILE_RANLIB to be $MKOCTFILE_RANLIB])
AC_SUBST(CROSS_TOOL_PREFIX)
AC_SUBST(MKOCTFILE_AR)
AC_SUBST(MKOCTFILE_CC)
AC_SUBST(MKOCTFILE_CXX)
AC_SUBST(MKOCTFILE_F77)
AC_SUBST(MKOCTFILE_RANLIB)
### Enable internal checks
## The checks slow down the execution and are redundant,
## but useful for debugging or verifying GNU Octave.
ENABLE_INTERNAL_CHECKS=no
AC_ARG_ENABLE([internal-checks],
[AS_HELP_STRING([--enable-internal-checks],
[Enable internal checks that are redundant but useful to debug or verify GNU Octave])],
[if test "$enableval" = yes; then ENABLE_INTERNAL_CHECKS=yes; fi], [])
if test $ENABLE_INTERNAL_CHECKS = yes; then
AC_DEFINE(OCTAVE_ENABLE_INTERNAL_CHECKS, 1,
[Define to 1 to enable internal checks.])
fi
### Determine extra CFLAGS, CXXFLAGS that may be necessary for Octave.
## On Intel systems with gcc, we need to compile with -mieee-fp to get full
## support for IEEE floating point.
##
## On Alpha/OSF systems, we require -mieee or -ieee for full support.
ieee_fp_flag=
case $canonical_host_type in
i[[3456789]]86-*-*)
if test "$GCC" = yes; then
OCTAVE_CC_FLAG([-mieee-fp], [
ieee_fp_flag=-mieee-fp
XTRA_CFLAGS="$XTRA_CFLAGS -mieee-fp"
AC_MSG_NOTICE([adding -mieee-fp to XTRA_CFLAGS])])
fi
if test "$GXX" = yes; then
OCTAVE_CXX_FLAG([-mieee-fp], [
ieee_fp_flag=-mieee-fp
XTRA_CXXFLAGS="$XTRA_CXXFLAGS -mieee-fp"
AC_MSG_NOTICE([adding -mieee-fp to XTRA_CXXFLAGS])])
fi
;;
alpha*-*-*)
if test "$GCC" = yes; then
OCTAVE_CC_FLAG([-mieee], [
ieee_fp_flag=-mieee
XTRA_CFLAGS="$XTRA_CFLAGS -mieee"
AC_MSG_NOTICE([adding -mieee to XTRA_CFLAGS])])
else
OCTAVE_CC_FLAG([-ieee], [
ieee_fp_flag=-ieee
XTRA_CFLAGS="$XTRA_CFLAGS -ieee"
AC_MSG_NOTICE([adding -ieee to XTRA_CFLAGS])])
fi
if test "$GXX" = yes; then
OCTAVE_CXX_FLAG([-mieee], [
ieee_fp_flag=-mieee
XTRA_CXXFLAGS="$XTRA_CXXFLAGS -mieee"
AC_MSG_NOTICE([adding -mieee to XTRA_CXXFLAGS])])
else
OCTAVE_CXX_FLAG([-ieee], [
ieee_fp_flag=-ieee
XTRA_CXXFLAGS="$XTRA_CXXFLAGS -ieee"
AC_MSG_NOTICE([adding -ieee to XTRA_CXXFLAGS])])