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arpack-ng/configure.ac
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Kyle GuinnandFranck HOUSSEN f73592dd1e Fix header and pkg-config file installation (#426) 
* Don't install pkg-config files for unbuilt libraries

The autotools build is configured to skip entire directories depending
on the configuration.  Each directory's Makefile is responsible for
installing what it needs, and moving the .pc files to the toplevel broke
that.

In the pkg-config files, leave ${includedir} unmodified from how
configure defines it.

* Install arpackicb.h only when ICB is ON.

---------

Co-authored-by: Franck HOUSSEN <fghoussen@users.noreply.github.com>
2025-10-31 15:05:59 +01:00

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AC_PREREQ(2.67)
AC_INIT([ARPACK-NG],[3.9.1],[https://github.com/opencollab/arpack-ng/issues/],[arpack-ng],[https://github.com/opencollab/arpack-ng/])
AC_CONFIG_SRCDIR([SRC/version.h])
AC_CONFIG_AUX_DIR([build-aux])
AC_CONFIG_MACRO_DIR([m4])
AM_INIT_AUTOMAKE([foreign])
AM_MAINTAINER_MODE
dnl Checks for standard programs.
dnl Autoconf was designed with the fundamental fact that compiler (= language support) is NOT an option.
AC_PROG_FC
AC_PROG_CC
AC_PROG_CXX
PKG_PROG_PKG_CONFIG
dnl Check for BLAS libraries
AX_BLAS([], [AC_MSG_ERROR([cannot find BLAS libraries])])
dnl Check for LAPACK libraries
AX_LAPACK([], [AC_MSG_ERROR([cannot find LAPACK libraries])])
AC_ARG_VAR(INTERFACE64, [set to 1 to use the 64-bit integer interface (ILP64) for ARPACK, BLAS and LAPACK])
if test x"$INTERFACE64" = x"1"; then
AC_LANG_PUSH([Fortran 77])
AX_CHECK_COMPILE_FLAG(-fdefault-integer-8, FFLAGS="$FFLAGS -fdefault-integer-8",
AX_CHECK_COMPILE_FLAG(-i8, FFLAGS="$FFLAGS -i8",
AC_MSG_WARN([configure does not know how to make your Fortran compiler use 64-bit integers: set it manually via FFLAGS.])))
AC_LANG_POP([Fortran 77])
AC_LANG_PUSH([Fortran])
AX_CHECK_COMPILE_FLAG(-fdefault-integer-8, FCFLAGS="$FCFLAGS -fdefault-integer-8",
AX_CHECK_COMPILE_FLAG(-i8, FCFLAGS="$FCFLAGS -i8",
AC_MSG_WARN([configure does not know how to make your Fortran compiler use 64-bit integers: set it manually via FCFLAGS.])))
AC_LANG_POP([Fortran])
else
INTERFACE64=0
fi
dnl Suffixes: LIBSUFFIX modify ONLY libraries names, ITF64SUFFIX modify BOTH libraries AND include directory names.
AC_ARG_VAR(LIBSUFFIX, [suffix to add to ARPACK libraries names])
AC_ARG_VAR(ITF64SUFFIX, [suffix to add to ARPACK include directory and libraries names (use with INTERFACE64)])
AC_ARG_VAR(SYMBOLSUFFIX, [suffix to add to ARPACK, BLAS and LAPACK function names])
ifdef([LT_INIT], [], [
errprint([error: you must have libtool 2.4.2 or a more recent version
])
m4exit([1])])
LT_PREREQ([2.4.2])
LT_INIT([win32-dll disable-static])
dnl Reminder: checking for ISO_C_BINDING must be done before MPI as MPI changes compilers.
dnl See if compiling with ISO_C_BINDING support
AC_ARG_ENABLE([icb],
[AS_HELP_STRING([--enable-icb],
[build support for *[ae]upd_c with ISO_C_BINDING])],
[],
[AS_VAR_SET([enable_icb], [no])])
if test x"$enable_icb" != x"no"; then
AC_LANG_PUSH([Fortran])
AC_MSG_CHECKING([for iso_c_binding module compilation])
AC_LINK_IFELSE(
[
AC_LANG_PROGRAM(
[],
[
USE iso_c_binding
IMPLICIT NONE
INTEGER(C_INT) :: a
a = 1
]
)
],
[AC_MSG_RESULT([yes])],
[
AC_MSG_RESULT([no])
AC_MSG_ERROR([Fortran compiler does not support iso_c_binding])
]
)
AC_LANG_POP([Fortran])
fi
dnl See if compiling eigenvalue-problems solver based on ICB and eigen.
AC_ARG_ENABLE([eigen],
[AS_HELP_STRING([--enable-eigen],
[build eigenvalue-problems solver based on ICB and eigen])],
[AS_VAR_SET([enable_icb], [$enableval])],
[AS_VAR_SET([enable_eigen], [no])])
if test x"$enable_eigen" != x"no"; then
PKG_CHECK_MODULES([EIGEN3], [eigen3 >= 3.3])
AC_LANG_PUSH([C++])
CPPFLAGS_SAVE=$CPPFLAGS
CPPFLAGS=$EIGEN3_CFLAGS
AC_CHECK_HEADER([Eigen/Sparse],
[],
[AC_MSG_ERROR([Eigen/Sparse not found])])
AC_CHECK_HEADER([Eigen/IterativeLinearSolvers],
[],
[AC_MSG_ERROR([Eigen/IterativeLinearSolvers not found])])
AC_CHECK_HEADER([Eigen/SparseLU],
[],
[AC_MSG_ERROR([Eigen/SparseLU not found])])
AC_CHECK_HEADER([Eigen/SparseQR],
[],
[AC_MSG_ERROR([Eigen/SparseQR not found])])
AC_CHECK_HEADER([Eigen/SparseCholesky],
[],
[AC_MSG_ERROR([Eigen/SparseCholesky not found])])
AC_CHECK_HEADER([Eigen/Dense],
[],
[AC_MSG_ERROR([Eigen/Dense not found])])
AC_CHECK_HEADER([Eigen/LU],
[],
[AC_MSG_ERROR([Eigen/LU not found])])
AC_CHECK_HEADER([Eigen/QR],
[],
[AC_MSG_ERROR([Eigen/QR not found])])
AC_CHECK_HEADER([Eigen/Cholesky],
[],
[AC_MSG_ERROR([Eigen/Cholesky not found])])
CPPFLAGS=$CPPFLAGS_SAVE
AC_LANG_POP([C++])
fi
dnl See if compiling parpack
AC_ARG_ENABLE([mpi],
[AS_HELP_STRING(
[--enable-mpi],
[build parallel version of arpack with MPI])],
[],
[AS_VAR_SET([enable_mpi], [no])])
AS_IF([test x"$enable_mpi" != x"no"], [
FCFLAGS_SAVE=$FCFLAGS
FCFLAGS=""
FFLAGS_SAVE=$FFLAGS
FFLAGS=""
AC_LANG_PUSH([Fortran 77])
AX_MPI([], AC_MSG_ERROR([could not compile a Fortran MPI test program]))
AC_SUBST([MPI_Fortran_LIBS], [$MPILIBS])
F77=$MPIF77
AC_LANG_POP([Fortran 77])
FCFLAGS=$FCFLAGS_SAVE
FFLAGS=$FFLAGS_SAVE
dnl Check if we can use ISO_C_BINDING provided by MPI.
AC_LANG_PUSH([Fortran 77])
AC_MSG_CHECKING([for MPI support for iso_c_binding])
AC_LINK_IFELSE(
[
AC_LANG_PROGRAM(
[],
[
USE :: mpi_f08
IMPLICIT NONE
type(MPI_Comm) comm
type(MPI_Status) status
]
)
],
[
AC_MSG_RESULT([yes])
FCFLAGS=$FCFLAGS" -DHAVE_MPI_ICB"
FFLAGS=$FFLAGS" -DHAVE_MPI_ICB"
AS_VAR_SET([enable_mpi_icb], [yes])
],
[
AC_MSG_RESULT([no])
AC_MSG_WARN([MPI library does not support iso_c_binding])
AS_VAR_SET([enable_mpi_icb], [no])
]
)
AC_LANG_POP([Fortran 77])
dnl As MPI can be used with or without ISO_C_BINDING (#ifdef), we need to preprocess code before compiling.
AC_LANG_PUSH([Fortran 77])
AX_CHECK_COMPILE_FLAG(-cpp, FFLAGS="$FFLAGS -cpp",
AX_CHECK_COMPILE_FLAG(-fpp, FFLAGS="$FFLAGS -fpp",
AC_MSG_WARN([configure does not know how to preprocess Fortran code: set it manually via FFLAGS.])))
AC_LANG_POP([Fortran 77])
AC_LANG_PUSH([Fortran])
AX_CHECK_COMPILE_FLAG(-cpp, FCFLAGS="$FCFLAGS -cpp",
AX_CHECK_COMPILE_FLAG(-fpp, FCFLAGS="$FCFLAGS -fpp",
AC_MSG_WARN([configure does not know how to preprocess Fortran code: set it manually via FCFLAGS.])))
AC_LANG_POP([Fortran])
])
dnl TODO: this needs full re-write of parpack to support ILP64...
if test x"$INTERFACE64" = x"1"; then
if test x"$enable_mpi" != x"no"; then
AC_MSG_ERROR([Parallel arpack does not support ILP64.])
fi
fi
if test x"$enable_icb" != x"no"; then
if test x"$enable_mpi" != x"no"; then
FCFLAGS_SAVE=$FCFLAGS
FCFLAGS=""
FFLAGS_SAVE=$FFLAGS
FFLAGS=""
AC_LANG_PUSH([Fortran])
AX_MPI([], AC_MSG_ERROR([could not compile a Fortran MPI test program]))
FC=$MPIFC
AC_FC_LIBRARY_LDFLAGS dnl set FCLIBS
AC_SUBST([MPI_Fortran_LIBS], ["$MPILIBS $FCLIBS"])
AC_LANG_POP([Fortran])
AC_LANG_PUSH([C])
AX_MPI([], AC_MSG_ERROR([could not compile a C MPI test program]))
AC_SUBST([MPI_C_LIBS], ["$MPILIBS $FCLIBS"])
CC=$MPICC
AC_LANG_POP([C])
AC_LANG_PUSH([C++])
AX_MPI([], AC_MSG_ERROR([could not compile a C++ MPI test program]))
AC_SUBST([MPI_CXX_LIBS], ["$MPILIBS $FCLIBS"])
CXX=$MPICXX
AC_LANG_POP([C++])
AC_LANG_PUSH([C])
AC_MSG_CHECKING([for MPI_Comm_c2f function])
AC_LINK_IFELSE(
[
AC_LANG_PROGRAM(
[[#include <mpi.h>]],
[[MPI_Comm c_comm; MPI_Comm_c2f(c_comm)]]
)
],
[AC_MSG_RESULT([yes])],
[
AC_MSG_RESULT([no])
AC_MSG_ERROR([symbol MPI_Comm_c2f does not exist])
]
)
AC_LANG_POP([C])
FCFLAGS=$FCFLAGS_SAVE
FFLAGS=$FFLAGS_SAVE
fi
AX_CXX_COMPILE_STDCXX(11)
else
# ICB saves you from old-fashion-boring-cumbersome-fortran/C crap... For arpack symbols (only).
if test x"$SYMBOLSUFFIX" != x""; then
dnl Need to rely on non-F77 features
AC_FC_LINE_LENGTH(unlimited)
FFLAGS="$FFLAGS $ac_cv_fc_line_length"
AC_LANG_PUSH([Fortran 77])
AX_CHECK_COMPILE_FLAG(-cpp, FFLAGS="$FFLAGS -cpp",
AX_CHECK_COMPILE_FLAG(-fpp, FFLAGS="$FFLAGS -fpp",
AC_MSG_WARN([configure does not know how to enable your Fortran compiler's preprocessor: set it manually via FFLAGS.])))
AC_LANG_POP([Fortran 77])
SCALARFUNS="naitr napps naup2 naupd nconv neigh neupd ngets statn saitr sapps saup2 saupd sconv seigt seupd sgets stats getv0 sortc sortr sesrt stqrb"
COMPLEXFUNS="naitr napps naup2 naupd neigh neupd ngets statn getv0 sortc"
FUNS1="$SCALARFUNS"
for f in $FUNS1
do
FFLAGS="$FFLAGS -Ds$f=s$f$SYMBOLSUFFIX -Dd$f=d$f$SYMBOLSUFFIX"
done
FUNS2="$COMPLEXFUNS"
for f in $FUNS2
do
FFLAGS="$FFLAGS -Dc$f=c$f$SYMBOLSUFFIX -Dz$f=z$f$SYMBOLSUFFIX"
done
fi
dnl Both a lowercase and uppercase variable are needed
dnl since the macro changes the case of the whole expression
symbolsuffix=$SYMBOLSUFFIX
AC_F77_FUNC(snaupd$SYMBOLSUFFIX, snaupdsuff)
AC_F77_FUNC(sneupd$SYMBOLSUFFIX, sneupdsuff)
AC_F77_FUNC(dnaupd$SYMBOLSUFFIX, dnaupdsuff)
AC_F77_FUNC(dneupd$SYMBOLSUFFIX, dneupdsuff)
dnl Needed for BLAS check and for tests (even when suffix is empty)
CPPFLAGS="$CPPFLAGS -Dsnaupd=$snaupdsuff -Dsneupd=$sneupdsuff -Ddnaupd=$dnaupdsuff -Ddneupd=$dneupdsuff"
fi
dnl As BLAS/LAPACK does not provide ICB, we may have to deal with symbols the old-fashion-boring-cumbersome-fortran/C way...
if test x"$SYMBOLSUFFIX" != x""; then
dnl Need to rely on non-F77 features
AC_FC_LINE_LENGTH(unlimited)
FFLAGS="$FFLAGS $ac_cv_fc_line_length"
AC_LANG_PUSH([Fortran 77])
AX_CHECK_COMPILE_FLAG(-cpp, FFLAGS="$FFLAGS -cpp",
AX_CHECK_COMPILE_FLAG(-fpp, FFLAGS="$FFLAGS -fpp",
AC_MSG_WARN([configure does not know how to enable your Fortran compiler's preprocessor: set it manually via FFLAGS.])))
AC_LANG_POP([Fortran 77])
BLASFUNS1="axpy copy gemv geqr2 lacpy lae2 lahqr lanhs larnv lartg lascl laset lasrt scal trevc trmm trsen gbmv gbtrf gbtrs gttrf gttrs pttrf pttrs"
BLASFUNS2="dot ger labad laev2 lamch lanst lanv2 lapy2 larf larfg lasr nrm2 orm2r rot steqr swap"
BLASFUNS3="dotc geru unm2r"
BLASFUNS4="COPY LABAD LAMCH LANHS LANV2 LARFG ROT GEMV"
BLASFUNS5="scnrm2 dznrm2 csscal zdscal"
FUNS1="$BLASFUNS1 $BLASFUNS2"
for f in $FUNS1
do
FFLAGS="$FFLAGS -Ds$f=s$f$SYMBOLSUFFIX -Dd$f=d$f$SYMBOLSUFFIX"
done
FUNS2="$BLASFUNS1 $BLASFUNS3"
for f in $FUNS2
do
FFLAGS="$FFLAGS -Dc$f=c$f$SYMBOLSUFFIX -Dz$f=z$f$SYMBOLSUFFIX"
done
for f in $BLASFUNS4
do
FFLAGS="$FFLAGS -DS$f=S$f$SYMBOLSUFFIX -DD$f=D$f$SYMBOLSUFFIX"
done
for f in $BLASFUNS5
do
FFLAGS="$FFLAGS -D$f=$f$SYMBOLSUFFIX -D$f=$f$SYMBOLSUFFIX"
done
dnl Both a lowercase and uppercase variable are needed
dnl since the macro changes the case of the whole expression
symbolsuffix=$SYMBOLSUFFIX
AC_F77_FUNC(sgemm$SYMBOLSUFFIX, sgemmsuff)
AC_F77_FUNC(cheev$SYMBOLSUFFIX, cheevsuff)
dnl Needed for BLAS check and for tests (even when suffix is empty)
CPPFLAGS="$CPPFLAGS -Dsgemm=$sgemmsuff -Dcheev=$cheevsuff"
fi
dnl Set conditional for Makefiles.
AM_CONDITIONAL([MPI], [test x"$enable_mpi" != x"no"])
AM_CONDITIONAL([BLACS], [false])
AM_CONDITIONAL([ICB], [test x"$enable_icb" != x"no"])
AM_CONDITIONAL([EIGEN], [test x"$enable_eigen" != x"no"])
m4_ifdef([PKG_INSTALLDIR], [PKG_INSTALLDIR], [AC_SUBST([pkgconfigdir], ['${libdir}/pkgconfig'])])
AC_SUBST([ARPACK_PC_LIBS_PRIVATE], ["$LAPACK_LIBS $BLAS_LIBS"])
AC_SUBST([PARPACK_PC_LIBS_PRIVATE], ["$LAPACK_LIBS $BLAS_LIBS $MPI_Fortran_LIBS"])
AC_CONFIG_FILES([
SRC/arpack$LIBSUFFIX$ITF64SUFFIX.pc:SRC/arpack.pc.in
PARPACK/SRC/MPI/parpack$LIBSUFFIX$ITF64SUFFIX.pc:PARPACK/SRC/MPI/parpack.pc.in
], [], [LIBSUFFIX="$LIBSUFFIX"; ITF64SUFFIX="$ITF64SUFFIX"])
dnl We do NOT want arpackng*.cmake files to be created: @MPI@ can not be replaced.
AC_CONFIG_FILES([tstAutotoolsInstall.sh], [chmod +x tstAutotoolsInstall.sh], [abs_top_builddir="$abs_top_builddir"])
AC_CONFIG_FILES([
arpackdef.h
arpackicb.h
cmake/arpackng-config-version.cmake
cmake/arpackng-config.cmake
Makefile
ICB/Makefile
UTIL/Makefile
SRC/Makefile
TESTS/Makefile
EXAMPLES/Makefile
EXAMPLES/BAND/Makefile
EXAMPLES/COMPLEX/Makefile
EXAMPLES/NONSYM/Makefile
EXAMPLES/SIMPLE/Makefile
EXAMPLES/SVD/Makefile
EXAMPLES/SYM/Makefile
EXAMPLES/MATRIX_MARKET/Makefile
PARPACK/Makefile
PARPACK/SRC/MPI/Makefile
PARPACK/SRC/BLACS/Makefile
PARPACK/UTIL/MPI/Makefile
PARPACK/UTIL/BLACS/Makefile
PARPACK/TESTS/MPI/Makefile
PARPACK/EXAMPLES/MPI/Makefile
PARPACK/EXAMPLES/BLACS/Makefile
])
AC_CONFIG_LINKS([
TESTS/testA.mtx:TESTS/testA.mtx
EXAMPLES/MATRIX_MARKET/An.mtx:EXAMPLES/MATRIX_MARKET/An.mtx
EXAMPLES/MATRIX_MARKET/As.mtx:EXAMPLES/MATRIX_MARKET/As.mtx
EXAMPLES/MATRIX_MARKET/Az.mtx:EXAMPLES/MATRIX_MARKET/Az.mtx
EXAMPLES/MATRIX_MARKET/B.mtx:EXAMPLES/MATRIX_MARKET/B.mtx
EXAMPLES/MATRIX_MARKET/Bz.mtx:EXAMPLES/MATRIX_MARKET/Bz.mtx
EXAMPLES/MATRIX_MARKET/issue215.mtx:EXAMPLES/MATRIX_MARKET/issue215.mtx
EXAMPLES/MATRIX_MARKET/issue401.mtx:EXAMPLES/MATRIX_MARKET/issue401.mtx
])
AC_OUTPUT
AC_MSG_RESULT([
--------------------------------------------------
Configuration summary for $PACKAGE_STRING
--------------------------------------------------
Installation prefix : $prefix
MPI enabled : $enable_mpi (ICB provided $enable_mpi_icb)
ICB enabled : $enable_icb
INTERFACE64 : $INTERFACE64
F77 : $F77
FFLAGS : $FFLAGS
FC : $FC
FCFLAGS : $FCFLAGS
CC : $CC
CFLAGS : $CFLAGS
CXX : $CXX
CXXFLAGS : $CXXFLAGS
CPPFLAGS : $CPPFLAGS
MPI_Fortran_LIBS : $MPI_Fortran_LIBS
MPI_C_LIBS : $MPI_C_LIBS
MPI_CXX_LIBS : $MPI_CXX_LIBS
BLAS : $BLAS_LIBS
LAPACK : $LAPACK_LIBS
EIGEN : $EIGEN3_CFLAGS
LIBS : $LIBS
LDADD : $LDADD
--------------------------------------------------
Configuration OK
--------------------------------------------------
])
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