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# Process this file with autoconf to produce a configure script.
# note: keep version number in sync with harminv.h
AC_INIT(harminv, 1.4.1, stevenj@alum.mit.edu)
AM_INIT_AUTOMAKE([foreign silent-rules 1.11])
AM_SILENT_RULES(yes)
AC_CONFIG_SRCDIR(harminv.c)
AM_CONFIG_HEADER(config.h)
AC_CONFIG_MACRO_DIR([m4])
AM_MAINTAINER_MODE
# Shared-library version number; indicates api compatibility, and is
# *not* the same as the "human" version number. CURRENT:REVISION:AGE
SHARED_VERSION_INFO="3:0:0"
AC_SUBST(SHARED_VERSION_INFO)
AM_ENABLE_SHARED(no) dnl shared libs cause too many headaches to be default
##############################################################################
AC_ARG_ENABLE(debug, [AC_HELP_STRING([--enable-debug,compile for debugging])],
enable_debug=$enableval, enable_debug=no)
if test "$enable_debug" = "yes"; then
CFLAGS="-g"
CXXFLAGS="-g"
FFLAGS="-g"
AC_DEFINE(DEBUG,1,[define to enable debugging code])
fi
##############################################################################
# Checks for programs.
AC_PROG_CC
AC_PROG_MAKE_SET
AC_PROG_INSTALL
# Fortran libraries are (probably) required for BLAS and LAPACK:
AC_F77_LIBRARY_LDFLAGS
AC_F77_DUMMY_MAIN
AC_F77_WRAPPERS
# Add lots of compiler warnings to check for if we are using gcc:
# (The variable $GCC is set to "yes" by AC_PROG_CC if we are using gcc.)
if test "$GCC" = "yes" && test "$USE_MAINTAINER_MODE" = yes; then
CFLAGS="$CFLAGS -Wall -W -Wbad-function-cast -Wcast-qual -Wpointer-arith -Wcast-align -pedantic"
fi
# Checks for header files.
AC_CHECK_HEADERS(unistd.h getopt.h)
###########################################################################
AC_ARG_WITH(cxx, [ --with-cxx=<dir> force use of C++ and complex<double>], with_cxx=$withval, with_cxx=no)
if test "x$with_cxx" = "xno"; then
AC_PROG_CC_C99
have_c_complex=yes
AC_CHECK_HEADERS(complex.h)
AC_CACHE_CHECK([for C complex keyword], acx_cv_c_complex,
[acx_cv_c_complex=unsupported
for acx_kw in complex _Complex __complex__; do
AC_TRY_COMPILE([#include <complex.h>], [float $acx_kw foo;],
[acx_cv_c_complex=$acx_kw; break])
done
])
if test "$acx_cv_c_complex" = "unsupported"; then
AC_MSG_WARN([C doesn't support complex numbers; switching to C++.])
have_c_complex=no
else
if test "$acx_cv_c_complex" != "complex"; then
AC_DEFINE_UNQUOTED(complex, $acx_cv_c_complex, [Define to equivalent of C99 complex keyword. Do not define if complex is supported directly.])
fi
AC_CACHE_CHECK([for C complex I constant], acx_cv_c_complex_I,
[acx_cv_c_complex_I=unsupported
for acx_kw in I "(1.0i)"; do
AC_TRY_COMPILE([#include <complex.h>],
[float $acx_cv_c_complex foo = $acx_kw;],
[acx_cv_c_complex_I=$acx_kw; break])
done
])
if test "$acx_cv_c_complex_I" = "unsupported"; then
AC_MSG_ERROR([C doesn't support complex numbers.])
have_c_complex=no
else
if test "$acx_cv_c_complex_I" != "I"; then
AC_DEFINE_UNQUOTED(I, $acx_cv_c_complex_I, [Define to equivalent of C99 complex I constant. Do not define if I is supported directly.])
fi
fi
AC_CACHE_CHECK([for CX_LIMITED_RANGE_ON macro], acx_cv_c_cx_limited_range_on,
[acx_cv_c_cx_limited_range_on=no
AC_TRY_COMPILE([#include <complex.h>],
[CX_LIMITED_RANGE_ON;], [acx_cv_c_cx_limited_range_on=yes])])
if test "$acx_cv_c_cx_limited_range_on" = "no"; then
AC_DEFINE(CX_LIMITED_RANGE_ON, 0, [Define to no-op if C99 macro is not available.])
fi
fi # C has complex keyword
fi # $with_cxx = no
if test "$have_c_complex" = "yes"; then
AC_CHECK_FUNCS(carg)
fi
###########################################################################
AC_PROG_CXX
if test "$with_cxx" = "yes" -o "$have_c_complex" = "no"; then
CC="$CXX"
CFLAGS="$CXXFLAGS"
fi
###########################################################################
AC_CHECK_TYPES([long double])
###########################################################################
AC_PROG_LIBTOOL
###########################################################################
AC_CHECK_LIB(m, sqrt)
###########################################################################
# Checks for BLAS/LAPACK libraries:
AX_BLAS([], [AC_MSG_ERROR([BLAS library not found])])
AX_LAPACK([], [AC_MSG_ERROR([LAPACK library not found])])
LIBS="$LAPACK_LIBS $BLAS_LIBS $LIBS $FLIBS"
###########################################################################
AC_CONFIG_FILES([Makefile harminv.pc])
AC_OUTPUT