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configure.ac
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dnl Process this file with autoconf to produce a configure script.
dnl configure.in for gnuplot on Unix.
dnl
dnl NB: Change version/patchlevel immediately below
dnl and also in PATCHLEVEL and src/version.c
dnl
AC_INIT(gnuplot, 6.1.0)
AC_CONFIG_SRCDIR(src/graphics.c)
AC_PREREQ([2.69])
AC_CONFIG_HEADERS(config.h:config.hin)
dnl The line below is for use during development
AC_DEFINE(DEVELOPMENT_VERSION,1,[Provide contact info for gnuplot develoment])
dnl The line below is for packaging a release version
dnl AM_CONDITIONAL([DEVELOPMENT_VERSION], false)
AM_INIT_AUTOMAKE([1.10 subdir-objects])
AM_MAINTAINER_MODE
VERSION_MAJOR="6.1"
PATCHLEVEL="`cat $srcdir/PATCHLEVEL`"
AC_DEFINE_UNQUOTED(VERSION_MAJOR,["$VERSION_MAJOR"],[The main version number])
AC_DEFINE_UNQUOTED(PATCHLEVEL,["$PATCHLEVEL"],[The patch level, a.k.a. micro version number])
dnl configure.in body
dnl Compiler characteristics
dnl Check for the const and inline keywords and ANSI style stringification
AC_USE_SYSTEM_EXTENSIONS
AC_PROG_CC
AC_PROG_CPP
AC_PROG_OBJC
AC_C_CONST
AC_C_INLINE
AC_C_STRINGIZE
AC_PROG_LN_S
if test "${build}" != "${host}"
then
CC=${CC-${host_alias-gcc}}
CFLAGS=${CFLAGS-"-g -O2"}
CXX=${CXX-${host_alias-c++}}
CXXFLAGS=${CXXFLAGS-"-g -O2"}
CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
else
# The cross-compilation patch originally had CC_FOR_BUILD = "\$(CC)"
# but that causes a recursive definition in docs/Makefile. EAM Dec 2009.
CC_FOR_BUILD="${CC}"
AC_PROG_CC
# We must set the default linker to the linker used by gcc for the correct
# operation of libtool. If LD is not defined and we are using gcc, try to
# set the LD default to the ld used by gcc.
if test -z "$LD"
then
if test "$GCC" = yes
then
case $build in
*-*-mingw*)
gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
*)
gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
esac
case $gcc_prog_ld in
# Accept absolute paths.
[[\\/]* | [A-Za-z]:[\\/]*)]
LD="$gcc_prog_ld" ;;
esac
fi
fi
CXX=${CXX-"c++"}
CFLAGS=${CFLAGS-"-g -O2"}
CXXFLAGS=${CXXFLAGS-"-g -O2"}
fi
AM_PROG_CC_C_O
AC_SUBST(CC_FOR_BUILD)
dnl large file support
AC_CHECK_TYPES([off_t])
AC_FUNC_FSEEKO
AC_SYS_LARGEFILE
dnl timezone support
AC_CHECK_MEMBERS([struct tm.tm_gmtoff, struct tm.__tm_gmtoff],,,[
#include <sys/types.h>
#include <time.h>])
dnl explicit call to PKG_PROG_PKG_CONFIG because the first call to
dnl PKG_CHECK_MODULES{,_NOFAIL} may not happen
PKG_PROG_PKG_CONFIG
AC_ARG_WITH(libcerf,dnl
[ --without-libcerf build without special functions from libcerf (default enabled)],,
[test -z "${with_libcerf}" && with_libcerf=yes])
if test "${with_libcerf}" = yes ; then
dnl The libcerf library contains a set of complex-valued special functions
dnl related to the error function (cerf, erfi, Dawson's integral, Voigt profile).
dnl If libcerf is installed then we can use them.
PKG_CHECK_MODULES_NOFAIL([LIBCERF], [libcerf],
[
CPPFLAGS="$CPPFLAGS $LIBCERF_CFLAGS"
LDFLAGS="$LDFLAGS $LIBCERF_LIBS"
],
)
AC_SEARCH_LIBS([cdawson], [cerf],
[AC_DEFINE([HAVE_LIBCERF], 1, [define if you have libcerf])
have_libcerf=yes]
)
fi
AC_ARG_WITH(amos,dnl
[ --with-amos[=DIR] location of libamos or libopenspecfun (complex functions)],,
with_amos=yes)
if test -d "$with_amos"; then
LIBAMOS_LDFLAGS=-L$with_amos
fi
if test "${with_amos}" != no ; then
_ldflags="$LDFLAGS"
LDFLAGS="$LDFLAGS $LIBAMOS_LDFLAGS"
AC_MSG_CHECKING( for amos libraries using LDFLAGS: $LDFLAGS )
dnl The Amos routines (D. E. Amos, Sandia National Laboratories) calculate
dnl Bessel and related functions with complex argument and nonnegative order.
dnl These routines exist in various library packages including libopenspecfun.
AC_SEARCH_LIBS([zairy_], [amos openspecfun],
[AC_DEFINE([HAVE_AMOS], 1, [define if you have a library of Amos special functions])
have_amoslibrary=yes]
)
dnl The Amos routine cexint (Complex exponential integral) is not in the general
dnl collection of Bessel functions so it may or may not be present in the same
dnl library as the others.
AC_SEARCH_LIBS([cexint_], [amos openspecfun],
[AC_DEFINE([HAVE_CEXINT], 1, [define if you have Amos function cexint])
have_cexint=yes && LIBS="$LIBS -L/home/local/lib64"]
)
fi
dnl Various programs
dnl X/Emacs for building .texi version of docs
test x"$EMACS" = xt && EMACS=
AC_CHECK_PROGS(EMACS, emacs xemacs, no)
dnl Allow manual specification of tex
AC_ARG_WITH(latex,[ --without-latex disable installation of latex support files],[],[with_latex="yes"])
if test "$with_latex" = yes; then
AC_CHECK_PROGS(PLAINTEX, tex, no)
AC_CHECK_PROGS(LATEX, latex latex2e, no)
AC_CHECK_PROGS(PDFLATEX, pdflatex, no)
test "$PLAINTEX" = "no" -o "$LATEX" = no -o "$PDFLATEX" = "no" && with_latex="no"
else
PLAINTEX="no"
LATEX="no"
PDFLATEX="no"
fi
AM_CONDITIONAL(HAVE_LATEX, test "$with_latex" != no)
AC_CHECK_PROGS(DVIPS, dvips, no)
AC_CHECK_PROGS(TROFF, troff, no)
AC_ARG_WITH(texdir,dnl
[--with-texdir=DIR where to install latex style files (default: ask kpsewhich)],
TEXDIR="$withval",
TEXDIR="no")
dnl Allow manual specification of kpsewhich
AC_CHECK_PROGS(KPSEWHICH, kpsewhich, no)
AC_CHECK_PROGS(TEXHASH, texhash, true)
dnl we only care about texdir if latex is enabled
if test "$with_latex" = yes; then
test "$KPSEWHICH" = "no" -a "$TEXDIR" = "no" && AC_MSG_ERROR(dnl
[texdir is not given and there is no kpsewhich, please tell where to install])
dnl texdir has priority
if test "$TEXDIR" = "no"; then
TEXDIR=`$KPSEWHICH --expand-var '$TEXMFLOCAL'`
if test "x$TEXDIR" = "x" -o "$TEXDIR" = "\$TEXMFLOCAL"; then
if test "x$prefix" != "xNONE"; then
TEXDIR=${prefix}/share/texmf
else
TEXDIR=${ac_default_prefix}/share/texmf
fi
fi
TEXDIR=${TEXDIR}/tex/latex/gnuplot
fi
fi
dnl X Window System files.
AC_SUBST(LIBRARIES_FOR_X)
AC_PATH_XTRA
dnl Needed for LynxOS until AC_PATH_XTRA is fixed
if test "$ac_cv_func_gethostbyname" = no; then
if test "$ac_cv_lib_nsl_gethostbyname" = no; then
AC_CHECK_LIB(bsd, gethostbyname, X_EXTRA_LIBS="$X_EXTRA_LIBS -lbsd")
fi
fi
if test "$no_x" != yes; then
CPPFLAGS="$CPPFLAGS $X_CFLAGS"
LIBRARIES_FOR_X="$X_LIBS -lX11 $X_EXTRA_LIBS"
AC_DEFINE(X11,1,[ Define if you are using the X11 window system. ])
AC_ARG_WITH(x-dcop,dnl
[--with-x-dcop gnuplot_x11 can use KDE3/DCOP for space-raises-console],
AC_DEFINE(USE_KDE3_DCOP,1,[ Define if gnuplot_x11 can use KDE3 DCOP to raise konsole]))
fi
AM_CONDITIONAL(BUILD_GNUPLOT_X11, test "$no_x" != yes)
dnl Operating systems.
dnl Check for MSDOS and djgpp, Apple MacOsX, BeOS
GP_MSDOS
GP_APPLE
GP_BEOS
GP_ALPHA
AM_CONDITIONAL(BUILD_SRC_BEOS_SUBDIR, test x$build_beos_subdir = xyes)
dnl _instead_ of -lm ...
AC_CHECK_FUNC(sin,,[AC_CHECK_LIB(m,sin)])
dnl Header files. ANSI first
dnl AC_HEADER_STDC
AC_CHECK_HEADERS(dirent.h errno.h float.h langinfo.h limits.h locale.h math.h \
stdlib.h string.h time.h sys/time.h sys/types.h \
sys/bsdtypes.h sys/ioctl.h sys/param.h sys/select.h sys/socket.h \
sys/stat.h sys/systeminfo.h sys/timeb.h sys/utsname.h \
libc.h malloc.h poll.h sgtty.h termios.h values.h dirent.h \
inttypes.h \
dlfcn.h dl.h
)
AC_HEADER_STDBOOL
if test "$ac_cv_header_sys_stat_h" = yes; then
AC_HEADER_STAT
fi
AC_HEADER_SYS_WAIT
dnl Check for external functions plugin infrastructure
AC_ARG_ENABLE(plugins,dnl
[ --disable-plugins disable support for importing external functions],,)
if test "$enable_plugins" != no; then
if test "$ac_cv_header_dl_h" = yes; then
AC_SEARCH_LIBS(shl_load, dld,
[AC_DEFINE(HAVE_EXTERNAL_FUNCTIONS,1,[ Define if external function plugins are to be supported. ])
have_external_functions=yes
])
fi
if test "$ac_cv_header_dlfcn_h" = yes; then
AC_SEARCH_LIBS(dlopen, dl,
[AC_DEFINE(HAVE_EXTERNAL_FUNCTIONS,1,[ Define if external function plugins are to be supported. ])
have_external_functions=yes
])
fi
fi
AM_CONDITIONAL(BUILD_PLUGIN, test "$have_external_functions" = yes)
dnl check if unistd actually declares anything.
AC_MSG_CHECKING(for unistd.h)
AC_EGREP_HEADER(execv, unistd.h,
[AC_DEFINE(HAVE_UNISTD_H) AC_MSG_RESULT(yes)],
AC_MSG_RESULT(no))
dnl check if errno.h header declares errno
AC_MSG_CHECKING(if errno variable is declared)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdio.h>
#ifdef HAVE_ERRNO_H
#include <errno.h>
#endif]], [[errno=0]])],[AC_MSG_RESULT(yes)],[AC_DEFINE(EXTERN_ERRNO,1,[ Define if <errno.h> declares errno. ])
AC_MSG_RESULT(no)])
dnl Types.
AC_TYPE_SIZE_T
AC_MSG_CHECKING(for time_t in time.h)
AC_EGREP_HEADER(time_t,time.h,
[AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_TIME_T_IN_TIME_H,1,
[ Define if time_t is declared in time.h. ])])
dnl Functions. Standard first, then others
dnl ANSI/ISO and their predecessors
dnl sunos 4 has on_exit() in place of atexit()
dnl gamma is called lgamma linux
dnl we prefer lgamma over gamma, see specfun.c
dnl math lib is already available, see operating systems part
AC_CHECK_FUNCS(atexit memcpy memmove memset \
on_exit bcopy bzero \
setvbuf strerror strchr strrchr strstr \
index rindex \
erf erfc gamma lgamma tgamma \
getcwd poll pclose popen fdopen select sleep stpcpy strlcpy \
strcspn strdup strndup strnlen strcasecmp stricmp strncasecmp strnicmp \
sysinfo tcgetattr vfprintf doprnt uname usleep \
cbrt jn
)
dnl HBB 20030624: see if signgam is declared by math.h
AC_CHECK_DECLS([signgam],,,
[#if HAVE_MATH_H
#include <math.h>
#endif
])
dnl check for C99 complex types
dnl and minimal set of complex math functions
AC_CHECK_HEADERS(complex.h)
AC_CHECK_FUNCS(csqrt cexp cabs clog)
dnl check for C99 floating point exception handling
AC_CHECK_HEADERS(fenv.h)
dnl check, if we have sigsetjmp and siglongjmp.
dnl a trivial AC_CHECK_FUNCS(sigsetjmp) won't do
dnl because sigsetjmp() might be a macro declared
dnl in <setjmp.h>. (joze)
AC_MSG_CHECKING(for sigsetjmp)
AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <setjmp.h>]], [[jmp_buf env; sigsetjmp(env, 1);]])],[AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_SIGSETJMP,1,
[ Define if we have sigsetjmp(). ])],[AC_MSG_RESULT(no)])
if test "$ac_cv_func_pclose" = yes -a "$ac_cv_func_popen" = yes ; then
AC_DEFINE(PIPES,1,[ Define if you do have the popen and pclose functions. ])
fi
AC_MSG_CHECKING(if malloc(0) returns 0)
AC_RUN_IFELSE([AC_LANG_PROGRAM([[#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
]],
[[if(malloc(0)==0) return 1;]])],
[malloc_zero_returns_zero=no],
[malloc_zero_returns_zero=yes],
[malloc_zero_returns_zero=yes])
AC_MSG_RESULT([$malloc_zero_returns_zero])
AS_IF([test x$malloc_zero_returns_zero = xyes],
[AC_DEFINE([MALLOC_ZERO_RETURNS_ZERO],[1],[Define to 1 if malloc(0)==0])])
dnl Argument types of select()
AC_FUNC_SELECT_ARGTYPES
dnl .gih help file location
eval gp_datadir=$datadir
if test "$gp_datadir" = NONE/share; then
datadir="/usr/local/share"
fi
pkgdatadir="$datadir/$PACKAGE"
AC_ARG_WITH(gihdir,dnl
[ --with-gihdir=DIR location of .gih help text file
(default PREFIX/share/PACKAGE/VERSION)],
GIHDIR="$withval",
GIHDIR="$pkgdatadir/$VERSION_MAJOR")
dnl Use builtin readline or GNU readline or NetBSD editline
AC_ARG_WITH(readline,dnl
[ --with-readline=builtin use the built-in readline
--with-readline=gnu use the GNU readline library (default if present)
--with-readline=bsd use the NetBSD editline library
--with-readline=DIR specify the location of readline/editline
--without-readline same as --with-readline=builtin], ,
test -z "$with_readline" && with_readline=gnu)
AS_IF([test "x${with_readline}" = "xno"], with_readline="builtin", )
dnl Gnuplot history
AC_ARG_ENABLE(history-file,dnl
[ --disable-history-file do not use history file],,
test -z "$enable_history_file" && enable_history_file=yes)
dnl GNU readline and the required terminal library
if test "$with_readline" != no; then
_libs="$LIBS"
if test "$with_readline" != builtin; then
dnl check for terminal library
dnl this is a very cool solution from octave's configure.in
gp_tcap=""
for termlib in ncurses curses termcap terminfo termlib; do
AC_CHECK_LIB(${termlib}, tputs, [gp_tcap="$gp_tcap -l$termlib"])
case "$gp_tcap" in
*-l${termlib}*)
break
;;
esac
done
dnl explicit path to readline/editline
if test "$with_readline" != gnu -a "$with_readline" != bsd; then
if test -d $with_readline/include; then
CPPFLAGS="$CPPFLAGS -I$with_readline/include"
fi
if test -d $with_readline/lib; then
LDFLAGS="$LDFLAGS -L$with_readline/lib"
fi
dnl Could be either libedit or readline!
if test ! -d $with_readline/include/readline; then
if test -d $with_readline/include/editline; then
AC_MSG_WARN([$with_readline contains libedit, not readline!])
with_readline=bsd
else
AC_MSG_ERROR([No readline found in $with_readline])
fi
fi
fi
if test "$with_readline" = bsd; then
AC_CHECK_LIB(edit, readline,
[TERMLIBS="-ledit $TERMLIBS"],
[AC_MSG_WARN([Could not find BSD editline library ])
with_readline=builtin],)
if test "$ac_cv_lib_edit_readline" = yes; then
AC_DEFINE(HAVE_LIBEDITLINE,1,
[ Define if you are using the BSD editline library. ])
AC_CHECK_HEADERS(editline/readline.h,,
AC_MSG_WARN([found BSD editline library but not readline.h please add path to readline.h to CPPFLAGS in Makefile]))
if test "$enable_history_file" = yes; then
AC_DEFINE(GNUPLOT_HISTORY,1,
[ Define if you want to use a gnuplot history file. ])
fi
fi
else # !bsd
AC_CHECK_LIB(readline, remove_history,
[TERMLIBS="-lreadline $gp_tcap $TERMLIBS"],,[${gp_tcap}])
if test "$ac_cv_lib_readline_remove_history" = no; then
dnl OSX keeps history functions in a separate library
AC_CHECK_LIB(history, remove_history,
[TERMLIBS="-lreadline -lhistory $gp_tcap $TERMLIBS"],
[ AC_MSG_WARN([GNU readline not found - falling back to builtin readline])
with_readline=builtin ]
,[${gp_tcap}])
fi
dnl Work around some functions missing from the OSX readline library.
dnl Would it be better to simply switch to with_readline=bsd in this case?
AC_SEARCH_LIBS(rl_ding, readline, ,
AC_DEFINE(MISSING_RL_DING,1,[ Define if your libreadline has no rl_ding]),
[${TERMLIBS}])
AC_SEARCH_LIBS(rl_forced_update_display, readline, ,
AC_DEFINE(MISSING_RL_FORCED_UPDATE_DISPLAY,1,[ Define if your libreadline has no rl_force_update_display]),
[${TERMLIBS}])
AC_SEARCH_LIBS(rl_reset_after_signal, readline,
AC_DEFINE(HAVE_READLINE_RESET,1,[ Define if your libreadline has rl_reset_after_signal]),
,
[${TERMLIBS}])
AC_SEARCH_LIBS(_rl_signal_handler, readline,
AC_DEFINE(HAVE_READLINE_SIGNAL_HANDLER,1,[ Define if your libreadline has _rl_signal_handler]),
,
[${TERMLIBS}])
AC_SEARCH_LIBS(rl_pending_signal, readline,
AC_DEFINE(HAVE_READLINE_PENDING_SIGNAL,1,[ Define if your libreadline has rl_pending_signal]),
,
[${TERMLIBS}])
# Warning: rl_complete_with_tilde_expansion is an int, not a function.
# I.e., it is not callable. AC_CHECK_LIB seems to work anyhow, but...
AC_SEARCH_LIBS(rl_complete_with_tilde_expansion, readline, ,
AC_DEFINE(MISSING_RL_TILDE_EXPANSION,1,[ Define if your libreadline has no rl_complete_with_tilde_expansion]),
[${TERMLIBS}])
if [test "$ac_cv_lib_readline_remove_history" != no || test "$ac_cv_lib_history_remove_history" != no]; then
if test "$with_readline" = bsd; then
AC_DEFINE(HAVE_LIBEDITLINE,1,
[ Define if you are using the BSD editline library. ])
else
AC_DEFINE(HAVE_LIBREADLINE,1,
[ Define if you are using the GNU readline library. ])
fi
AC_CHECK_HEADERS(readline/readline.h,,
AC_MSG_WARN([found GNU readline library but not readline.h
please add path to readline.h to CPPFLAGS in Makefile]))
AC_CHECK_HEADERS(readline/history.h,,
AC_MSG_WARN([found GNU readline library but not history.h
please add path to history.h to CPPFLAGS in Makefile]))
if test "$enable_history_file" = yes; then
AC_DEFINE(GNUPLOT_HISTORY,1,
[ Define if you want to use a gnuplot history file. ])
fi
fi # ! ac_cv_lib_readline_readline = no
fi # ! with_readline = bsd
fi # ! with_readline != builtin
if test "$with_readline" = builtin; then
AC_CHECK_FUNCS(wcwidth)
AC_CHECK_HEADERS(wchar.h,,
AC_MSG_WARN([please add path to wchar.h to CPPFLAGS in Makefile]))
AC_DEFINE(READLINE,1,
[ Define if you want to use the included readline function. ])
if test "$enable_history_file" = yes; then
AC_DEFINE(GNUPLOT_HISTORY,1,
[ Define if you want to use a gnuplot history file. ])
fi
fi
LIBS="$_libs"
fi
dnl end readline
dnl the "qsort" provided by macOS is not stable (items that evaluate equal are not
dnl guaranteed to retain their original ordering).
dnl This option allows you to replace it with mergesort, if found,
dnl or add code in gnuplot to make the sort stable with respect to pm3d depthorder
AC_CHECK_FUNCS(mergesort, have_stable_sort=yes)
AC_CHECK_FUNCS(gnu_get_libc_version, have_stable_sort=yes)
AC_ARG_ENABLE(stable-sort, dnl
[ --enable-stable-sort guarantee that pm3d depth-sorting retains object order],
[AC_DEFINE(WITH_STABLE_SORT,1,
[ Define if qsort on your O/S is unstable and that bothers you. ])
]
,)
dnl check presence of z library
dnl TODO: path to zlib includes; -lz -lm specified multiple times
dnl we don't do anything about missing png/gd includes either
AC_CHECK_LIB(z,deflate,
[TERMLIBS="$TERMLIBS -lz"
AC_DEFINE(HAVE_LIBZ,1,[ Define if you have zlib. ])
AC_CHECK_HEADER(zlib.h,,
[AC_MSG_WARN([found z library but not zlib.h
please add path to zlib.h to CPPFLAGS in Makefile])])],
AC_MSG_WARN([zlib is required - see http://www.gzip.org/zlib/]))
dnl check presence of gd library
dnl we don't check for libfreetype and libjpeg locations - if gd requires
dnl them, the gdlib-config script or the gdlibc.pc contains all the required information
AC_ARG_WITH(gd,dnl
[ --with-gd[=DIR] (DIR is location of include/gd.h and lib/libgd.so)],,
with_gd=yes)
if test -d "$with_gd"; then
libgd_LDFLAGS=-L$with_gd/lib
libgd_CFLAGS=-I$with_gd/include
libgd_LIBS=-lgd
AC_MSG_WARN(([Looking for $with_gd/include/gd.h and $with_gd/lib/libgd.so]))
elif test "$with_gd" != no; then
PKG_CHECK_MODULES_NOFAIL(libgd, [gdlib])
# If pkg-config did return libgd configuration then
# libgd_{CFLAGS,LDFLAGS,LIBS} is set
fi
if test "$with_gd" != no; then
# Verify that libgd works, but backup the previous compilation variables to
# be able to revert in the case that libgd is not functional
_cppflags="$CPPFLAGS"
_ldflags="$LDFLAGS"
_libs="$LIBS"
CPPFLAGS="$CPPFLAGS $libgd_CFLAGS"
LDFLAGS="$LDFLAGS $libgd_LDFLAGS"
LIBS="$LIBS $libgd_LIBS"
AC_CHECK_LIB(gd,gdImageCreateTrueColor,
[dnl found gd library
AC_DEFINE(HAVE_LIBGD,1,[ Define if you have gd library. ])
AC_CHECK_HEADERS(gd.h,,
AC_MSG_WARN([please add path to gd.h to CPPFLAGS in Makefile]))
dnl gif support in libgd
AC_CHECK_LIB(gd,gdImageGif,
[AC_DEFINE(HAVE_GD_GIF,1,[ Define if libgd supports gif. ])])
AC_CHECK_LIB(gd,gdImageGifAnimBegin,
[AC_DEFINE(GIF_ANIMATION,1,[ Define if libgd supports animated gifs. ])])
dnl jpeg support in libgd
AC_CHECK_LIB(gd,gdImageJpeg,
[AC_DEFINE(HAVE_GD_JPEG,1,[ Define if libgd supports jpeg. ])])
dnl freetype support in libgd
AC_CHECK_LIB(gd,gdImageStringFT,
AC_DEFINE(HAVE_GD_TTF,1,
[ Define if libgd supports TrueType fonts through libfreetype. ]))
dnl png support in libgd
AC_CHECK_LIB(gd,gdImagePng,
[AC_DEFINE(HAVE_GD_PNG,1,[ Define if libgd supports png. ])])
],[dnl gd library not found
AC_MSG_WARN([libgd not found or too old, version >= 2.0 is required])
with_gd=no
])
dnl piece it all together
if test "$with_gd" = no; then
CPPFLAGS="$_cppflags"
LDFLAGS="$_ldflags"
LIBS="$_libs"
else
LIBS="$_libs"
TERMLIBS="$TERMLIBS -lgd $libgd_LIBS"
fi
fi
dnl end gd
dnl The iconv library can be used to switch character encodings.
dnl So far this is only used by gd.trm and emf.trm.
AC_SEARCH_LIBS([iconv_open], [iconv],
[AC_CHECK_HEADER([iconv.h],
[AC_DEFINE([HAVE_ICONV], 1, [define if you have libiconv and iconv.h])]
)]
)
dnl check presence of lua/TikZ support
AC_ARG_WITH(lua,dnl
[ --without-lua disable lua/TikZ terminal (default enabled)],,
[test -z "${with_lua}" && with_lua=yes])
dnl Some distributions allow for parallel installation of different
dnl lua versions. We test for that in order of pereference.
if test "${with_lua}" = yes ; then
LUA=lua
PKG_CHECK_MODULES([LUA], [lua], LUAFOUND=yes,
[PKG_CHECK_MODULES([LUA], [lua5.3], LUA=lua5.3,
[PKG_CHECK_MODULES([LUA], [lua5.2], LUA=lua5.2,
[PKG_CHECK_MODULES([LUA], [lua5.1], LUA=lua5.1,
[LUAFOUND=no])])])])
if test $pkg_failed != no; then
AC_MSG_WARN([Could not find support for lua using pkg-config.])
with_lua=no
fi
if test "$with_lua" != no; then
TERMLIBS="$TERMLIBS $LUA_LIBS"
CPPFLAGS="$CPPFLAGS $LUA_CFLAGS"
else
dnl if pkg-config didn't work, we migh still find it manually
AC_SEARCH_LIBS(luaL_openlibs, lua lua5.3 lua5.2 lua5.1,
with_lua=yes, with_lua=no)
fi
if test "$with_lua" = yes; then
AC_DEFINE(HAVE_LUA,1, [ Define if you want the lua/TikZ terminal. ])
AC_CHECK_HEADERS(lua.h,,
AC_MSG_WARN([please add path to lua.h to CPPFLAGS in Makefile]))
fi
AC_SUBST(LUA)
fi
AM_CONDITIONAL(BUILD_LUA, test "${with_lua}" = yes)
dnl end lua
dnl check presence of caca library
AC_ARG_WITH(caca,dnl
[ --with-caca[=DIR] where to find the caca library],,
with_caca=no)
if test "$with_caca" != no; then
if test -d "$with_caca"; then
dnl path to libcaca was specified manually
caca_CPPFLAGS="-I$with_caca/include"
caca_LDFLAGS="-L$with_caca/lib -Wl,-rpath -Wl,$with_caca/lib"
caca_LIBS="-lcaca"
with_caca=yes
else
dnl try to use pkg-config first
PKG_CHECK_MODULES(caca, [caca], [with_caca=yes], [with_caca=no])
if test $pkg_failed != no; then
dnl try to locate libcaca using its config tool
AC_PATH_PROG([CACA_CONFIG], [caca-config])
if test -n "$CACA_CONFIG"; then
caca_CPPFLAGS=`$CACA_CONFIG --cflags`
caca_LDFLAGS=`$CACA_CONFIG --ldflags`
caca_LIBS=`$CACA_CONFIG --libs`
with_caca=yes
else
dnl libcaca was not found
AC_MSG_WARN([libcaca not found or too old, version >= 0.99.beta15 is required])
with_caca=no
fi
fi
fi
dnl test usability
_cppflags="$CPPFLAGS"
_ldflags="$LDFLAGS"
CPPFLAGS="$caca_CPPFLAGS $CPPFLAGS"
LDFLAGS="$caca_LDFLAGS $LDFLAGS"
AC_CHECK_LIB(caca,caca_get_version,
[dnl found caca library, test for version >= 0.99.beta15 (libcucul merged back)
AC_CHECK_LIB([caca],[caca_export_canvas_to_memory],,
[AC_DEFINE(USE_CACA_EXPORT_MEMORY,1,[ Define if your libcaca does not have caca_export_canvas_to_memory but the old caca_export_memory])],[])
AC_CHECK_DECL([CACA_DEPRECATED],
[AC_DEFINE(HAVE_LIBCACA,1,[ Define if you have the caca library. ])],
[AC_MSG_WARN([libcaca header not found or too old, version >= 0.99.beta15 is required])
with_caca=no],
[[#include <caca.h>]])
],
[dnl caca library not found
AC_MSG_WARN([libcaca not found or too old, version >= 0.99.beta15 is required])
with_caca=no
])
dnl piece it all together
if test "$with_caca" = no; then
CPPFLAGS="$_cppflags"
LDFLAGS="$_ldflags"
else
TERMLIBS="$TERMLIBS $caca_LIBS"
fi
fi
dnl end caca
dnl Process rest of with and enable options
dnl EXPERIMENTAL support for concave hulls via Delaunay triangulation and chi-shapes
AC_ARG_ENABLE(chi-shapes,dnl
[ --disable-chi-shapes no support for Delaunay triangulation or chi-shapes],,)
if test "$enable_chi_shapes" != no; then
AC_DEFINE(WITH_CHI_SHAPES,1,
[ Define to support Delaunay triangulation and chi-shapes ])
fi
dnl without-extra-coordinate may leave a hole in "struct coordinate"
AC_ARG_ENABLE(extra-coordinate,dnl
[ --disable-extra-coordinate leave possible hole in struct coordinate],,)
if test "$enable_extra_coordinate" != no -o "$enable_chi_shapes" != no; then
AC_DEFINE(WITH_EXTRA_COORDINATE,1,
[ Define to make use of otherwise empty space in struct coordinate ])
fi
dnl enable multi-byte font support in x11 terminal
AC_ARG_ENABLE(x11-mbfonts,dnl
[ --disable-x11-mbfonts disable multi-byte font support for x11 ],,
test -z "$enable_x11_mbfonts" && enable_x11_mbfonts=yes)
if test "$enable_x11_mbfonts" = yes; then
_ldflags="$LDFLAGS"
LDFLAGS="$LDFLAGS $LIBRARIES_FOR_X"
AC_MSG_CHECKING([for multi-byte support in x11])
AC_CHECK_LIB(X11, XmbDrawString,
AC_DEFINE(USE_X11_MULTIBYTE,1,[ Define to enable multi-byte font support for x11 ]),
enable_x11_mbfonts=no )
LDFLAGS="$_ldflags"
fi
dnl x11_external
AC_ARG_ENABLE(x11_external,dnl
[ --disable-x11-external disable drawing to windows belonging to external apps],,
test -z "$enable_x11_external" && enable_x11_external=yes)
if test "$enable_x11_external" = yes; then
AC_DEFINE(EXTERNAL_X11_WINDOW,1,[ Define if you want to supply pre-existing X11 windows. ])
fi
dnl disable the "space raises console" behaviour
AC_ARG_ENABLE(raise-console,dnl
[ --disable-raise-console spacebar in plot window does not raise console],,
test -z "$enable_raise_console" && enable_raise_console=yes)
if test "$enable_raise_console" != yes; then
AC_DEFINE(DISABLE_SPACE_RAISES_CONSOLE,1,
[ Define to treat spacebar like any other keystroke. ])
fi
dnl wxWidgets terminal
dnl wxWidgets terminal needs C++
dnl These tests cannot be called conditionally.
dnl These tests are non-fatal on autoconf 2.58 and 2.59,
dnl but it may change in future versions, so we redefine AC_MSG_ERROR.
dnl Even if there is no C++ compiler on the system,
dnl autoconf will set CXX as g++ : this must be reverted.
m4_pushdef([AC_MSG_ERROR],[cxxerror=yes])
AC_PROG_CXX
m4_popdef([AC_MSG_ERROR])
if test "x${cxxerror}" != "xyes"; then
AC_LANG_PUSH([C++])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <iostream>]],
[[const char hw[] = "Hello, World\n"; std::cout << hw;]])],
[cxxerror=no
AC_PROG_CXXCPP],
[cxxerror=yes
CXX=$CC])
AC_LANG_POP([C++])
fi
AC_ARG_ENABLE(wxwidgets,dnl
[ --disable-wxwidgets wxWidgets terminal (default enabled)],,
[test -z "${enable_wxwidgets}" && enable_wxwidgets=yes])
if test "${enable_wxwidgets}" = yes ; then
dnl variable used to determine if all checks pass
enable_wxwidgets_ok=yes
dnl Check for the C++ compiler
if test "x${cxxerror}" = "xyes"; then
AC_MSG_WARN([No C++ compiler found. The wxWidgets terminal will not be compiled.])
enable_wxwidgets_ok=no
fi
dnl The user can specify another path for wx-config
WXWIDGETS_PATH="${PATH}"
AC_ARG_WITH(wx,dnl
[--with-wx=DIR Where to find wx-config, the wxWidgets configuration program
(default search in $PATH)],
[ if test "${with_wx}" != "no" ; then
WXWIDGETS_PATH="${with_wx}:${PATH}"
fi ])
dnl Look for wx-config in the path
AC_PATH_PROG(WX_CONFIG, wx-config, no, ${WXWIDGETS_PATH})
if test "${WX_CONFIG}" = "no"; then
AC_MSG_WARN([wxWidgets can't be found. You can try --with-wx=DIR to give the right path to wx-config. The wxWidgets terminal will not be compiled.])
enable_wxwidgets_ok=no
else
dnl Ckeck for wxWidgets version
WXWIDGETS_VERSION=`${WX_CONFIG} --release`
if expr 2.6 \> ${WXWIDGETS_VERSION} >/dev/null; then
AC_MSG_WARN([Your development package for wxWidgets is too old, you need at least version 2.6. The wxWidgets terminal will not be compiled.])
enable_wxwidgets_ok=no
fi
if expr ${WXWIDGETS_VERSION} \> 2.8 >/dev/null; then
AC_DEFINE(WX_NEEDS_XINITTHREADS, 1, [wxWidgets >= 2.9 wants calling program to invoke XInit()])
fi
dnl Make sure we're using more than the 'base' wxWidgets. Those
if expr `${WX_CONFIG} --basename` : '.*base' >/dev/null; then
AC_MSG_WARN([You only have the 'base' flavor of wxWidgets. A full wxWidgets library is required. On Debian/Ubuntu, please make sure that you have a 'libwx...-dev' package other than just 'libwxbase...-dev' installed. The wxWidgets terminal will not be compiled.])
enable_wxwidgets_ok=no
fi
fi
dnl Check for Cairo
PKG_CHECK_MODULES_NOFAIL(CAIROPANGO, [cairo >= 0.9.0 pango >= 1.22 pangocairo >= 1.10])
if test $pkg_failed != no; then
AC_MSG_WARN([The wxWidgets terminal will not be compiled.])
enable_wxwidgets_ok=no
fi
fi
if test "${enable_wxwidgets_ok}" = yes ; then
WX_CXXFLAGS="`$WX_CONFIG --cxxflags | sed 's/-fno-exceptions//'` $CAIROPANGO_CFLAGS"
WX_LIBS="`$WX_CONFIG --libs` $CAIROPANGO_LIBS $LIBRARIES_FOR_X"
dnl Check for fork(), used for the 'persist' effect
AC_FUNC_FORK
dnl Check if wxWidgets uses gtk on this platform
WX_TOOLKIT="`$WX_CONFIG --query-toolkit`"
if test "${WX_TOOLKIT}" = gtk2 ; then
PKG_CHECK_MODULES(GTK, [gtk+-2.0], have_gtk=yes, have_gtk=no)
want_gtk=yes
elif test "${WX_TOOLKIT}" = gtk3 ; then
PKG_CHECK_MODULES(GTK, [gtk+-3.0], have_gtk=yes, have_gtk=no)
want_gtk=yes
fi
if test "${have_gtk}" = yes ; then
AC_DEFINE(HAVE_GTK, 1, [define if your wxWidgets uses the gtk toolkit])
WX_CXXFLAGS="$WX_CXXFLAGS $GTK_CFLAGS"
WX_LIBS="$WX_LIBS $GTK_LIBS"
fi
dnl Default to single-threaded
dnl AC_ARG_WITH(wx-multithreaded, dnl
dnl [--with-wx-multithreaded use multithreaded wxgtk (known problems, not recommended)],
dnl , WX_CXXFLAGS="$WX_CXXFLAGS -DWXT_MONOTHREADED"
dnl )
CPPFLAGS="$CPPFLAGS $CAIROPANGO_CFLAGS"
CXXFLAGS="$CXXFLAGS $WX_CXXFLAGS"
AC_SUBST(WX_LIBS)
AC_DEFINE(WXWIDGETS, 1, [ Define if you want the wxwidgets terminal. ])
fi
AM_CONDITIONAL(BUILD_WXWIDGETS, test "${enable_wxwidgets_ok}" = yes)
dnl End wxWidgets terminal
dnl Allow to disable terminals requiring bitmap support.
AC_ARG_WITH(bitmap_terminals,dnl
[ --with-bitmap-terminals dot-matrix printers and pbm])
AS_IF([test "x${with_bitmap_terminals}" = "xyes"],,
AC_DEFINE(NO_BITMAP_SUPPORT,1,
[ Define to disable terminals that depend on code in bitmap.c ]))
AM_CONDITIONAL(BUILD_BITMAP, test "${with_bitmap_terminals}" = yes)
dnl Allow to disable support for tektronix terminal emulators
AC_ARG_WITH(tektronix,dnl
[ --without-tektronix tektronix terminal emulators (default enabled)])
AS_IF([test "x${with_tektronix}" != "xno"],
AC_DEFINE(WITH_TEKTRONIX,1,
[ Define to include support for tektronix terminal emulators ],))
dnl Allow to include gpic terminal
AC_ARG_WITH(gpic,dnl
[ --with-gpic gpic terminal])
AS_IF([test "x${with_gpic}" = "xyes"],
AC_DEFINE(HAVE_GPIC,1,
[ Define to include support for gpic terminal ],))
dnl Allow to include tgif terminal
AC_ARG_WITH(tgif,dnl
[ --with-tgif tgif terminal])
AS_IF([test "x${with_tgif}" = "xyes"],
AC_DEFINE(HAVE_TGIF,1,
[ Define to include support for tgif terminal ],))
dnl Allow to include metafont terminal
AC_ARG_WITH(metafont,dnl
[ --with-metafont metafont terminal])
AS_IF([test "x${with_metafont}" = "xyes"],
AC_DEFINE(HAVE_METAFONT,1,
[ Define to include support for metafont terminal ],))
dnl Allow to include metapost terminal
AC_ARG_WITH(metapost,dnl
[ --with-metapost metapost terminal])
AS_IF([test "x${with_metapost}" = "xyes"],
AC_DEFINE(HAVE_METAPOST,1,
[ Define to include support for metapost terminal ],))
AM_CONDITIONAL(DOC_METAPOST, test "x${with_metapost}" = "xyes")
dnl ReGIS terminal
AC_ARG_WITH(regis,dnl
[ --with-regis ReGIS terminal])
AS_IF([test "x${with_regis}" = "xyes"],
AC_DEFINE(HAVE_REGIS,1,
[ Define to include support for ReGIS terminal ],))
AC_ARG_WITH(cairo,dnl
[ --without-cairo cairo-based terminals (default enabled)],,
[test -z "${with_cairo}" && with_cairo=yes])
if test "${with_cairo}" = yes ; then
dnl cairo terminals
PKG_CHECK_MODULES_NOFAIL(CAIROPDF,dnl
[cairo >= 1.2 cairo-pdf >= 1.2 pango >= 1.22 pangocairo >= 1.10 glib-2.0 >= 2.28])
if test $pkg_failed != no; then
AC_MSG_WARN([The cairo terminals will not be compiled.])
with_cairo=no
else
AC_DEFINE(HAVE_CAIROPDF,1, [ Define if you want the cairo-based terminals. ])
CPPFLAGS="$CPPFLAGS $CAIROPDF_CFLAGS"
LIBS="$LIBS $CAIROPDF_LIBS"
with_cairo=yes
PKG_CHECK_MODULES(CAIROEPS, [cairo >= 1.6.0],
AC_DEFINE([HAVE_CAIROEPS], 1, [libcairo support for eps (cairo >= 1.6)]),
AC_MSG_WARN([Your version of cairo is too old to support epscairo output]))
fi
fi
build_gpcairo=no
if test "${enable_wxwidgets_ok}" = yes; then
build_gpcairo=yes
fi
if test "${with_cairo}" = yes; then
build_gpcairo=yes
fi
AM_CONDITIONAL(BUILD_GPCAIRO, test "${build_gpcairo}" = yes)
dnl If neither libgd nor cairo is present, we need another way to read in image files.
dnl Try libstbi
if test "$with_gd" = no && test "$with_cairo" = no; then
AC_CHECK_LIB(stbi, stbi_load_from_file,
[AC_DEFINE(HAVE_STBI,1,[ Define to use libstbi as a fallback for reading image data])
with_stbi=yes && TERMLIBS="$TERMLIBS -lstbi"
AC_CHECK_HEADERS(stb_image.h,,
AC_MSG_WARN([please add path to stb_image.h to CPPFLAGS in Makefile]))
])
fi
dnl end check for libstbi
dnl webp terminal
if test "${with_cairo}" = yes; then
with_webp=yes
PKG_CHECK_MODULES_NOFAIL(WEBP, [libwebp libwebpmux],
[
CPPFLAGS="$CPPFLAGS $WEBP_CFLAGS"
TERMLIBS="$TERMLIBS $WEBP_LIBS"
AC_DEFINE(HAVE_WEBP,1, [ Define to build the webp terminal. ])
],
with_webp=no
)
fi
dnl Enable polar mode gridded surface plots
AC_ARG_ENABLE(polar-grid,dnl
[ --enable-polar-grid include support for gridded polar surface plots],
[if test "$enableval" != no; then
AC_DEFINE(USE_POLAR_GRID,1,
[ Define to support polar gridded surface plots])
fi],
AC_DEFINE(USE_POLAR_GRID,1,