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configure.ac
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configure.ac
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# initialize things
AC_INIT([image2k],[0.1])
AC_CONFIG_AUX_DIR(build-aux)
AC_CONFIG_MACRO_DIR([build-aux/m4])
AC_CONFIG_SRCDIR([src/image2k.c])
AM_INIT_AUTOMAKE([-Wall -Werror foreign])
# declare some tools
AC_PROG_CC
AC_PROG_CC_STDC
AC_PROG_CPP
AM_PROG_AR
AC_PROG_GREP
AC_PROG_MKDIR_P
# initialize libtool (must be done *after* AM_PROG_AR)
LT_INIT
# from Writing R Extensions: get the right compiler and flags for R
: ${R_HOME=`R RHOME`}
if test -z "${R_HOME}"; then
echo "could not determine R_HOME"
exit 1
fi
R_CC=`"${R_HOME}/bin/R" CMD config CC`
R_CFLAGS=`"${R_HOME}/bin/R" CMD config CFLAGS`
R_CPPFLAGS=`"${R_HOME}/bin/R" CMD config --cppflags`
R_LDFLAGS=`"${R_HOME}/bin/R" CMD config --ldflags`
AC_SUBST(R_CC)
AC_SUBST(R_CFLAGS)
AC_SUBST(R_CPPFLAGS)
AC_SUBST(R_LDFLAGS)
# now, check for Imlib2 and/or MagickWand.
# a good reference to PKG_CHECK_MODULES:
# https://www.flameeyes.eu/autotools-mythbuster/pkgconfig/pkg_check_modules.html
have_imlib2=1
PKG_CHECK_MODULES([IMLIB2],
[imlib2],
[AC_DEFINE([HAVE_IMLIB2], [1], [Have Imlib2])],
[have_imlib2=0])
AC_SUBST(IMLIB2_CFLAGS)
AC_SUBST(IMLIB2_LIBS)
CPPFLAGS="${CPPFLAGS} ${IMLIB2_CFLAGS}"
LIBS="${LIBS} ${IMLIB2_LIBS}"
AC_SUBST(have_imlib2)
have_magickwand=1
PKG_CHECK_MODULES([MAGICKWAND],
[MagickWand],
[AC_DEFINE([HAVE_MAGICKWAND], [1], [Have MagickWand])],
[have_magickwand=0])
AC_SUBST(MAGICKWAND_CFLAGS)
AC_SUBST(MAGICKWAND_LIBS)
CPPFLAGS="${CPPFLAGS} ${MAGICKWAND_CFLAGS}"
LIBS="${LIBS} ${MAGICKWAND_LIBS}"
AC_SUBST(have_magickwand)
# error if we can find neither Imlib2 nor MagickWand...
if test x${have_imlib2} \!= x1 && test x${have_magickwand} \!= x1; then
AC_MSG_ERROR([
---------------------------------------------------
Neither Imlib2 nor MagickWand (an optional part of
ImageMagick) are available on this system (as
configured). Unable to build this package.
---------------------------------------------------])
fi
# need X11, as some of the include files (in MagickWand, i think) try
# to include from there.
AC_PATH_X
if test -n "${x_includes}"; then
X_CFLAGS="-I${x_includes}"
AC_SUBST(X_CFLAGS)
CPPFLAGS="${CPPFLAGS} -I${x_includes}"
fi
if test -n "${x_libraries}"; then
X_LIBS="-L${x_libraries} -lX11"
AC_SUBST(X_LIBS)
LIBS="${LIBS} -L${x_libraries} -lX11"
else
LIBS="${LIBS} -lX11"
fi
# declare output files
AC_CONFIG_HEADERS([src/config.h])
AC_CONFIG_FILES([
DESCRIPTION
Makefile
man/image2k-package.Rd
R/image2k.R
src/Makefile
tests/rmd5image.R
])
# create the output
AC_OUTPUT