[BUG FIX] Install: generating crossed cmake/pc files. (#219)

* TravisCI: fix ILP64 job. No need for security.debian.org.

* [BUG FIX] Install: generating crossed cmake/pc files.
Add cmake/autotool variables in autotool/cmake to generate pc/cmake files.

.travis.yml

@@ -193,6 +193,7 @@ jobs:
        cat /etc/apt/sources.list                                                                                     && \
        sed -e 's/stretch/testing/'            -i /etc/apt/sources.list                                               && \
        sed -e 's/main/main non-free contrib/' -i /etc/apt/sources.list                                               && \
+       sed -e '/security.debian.org/d'        -i /etc/apt/sources.list                                               && \
        cat /etc/apt/sources.list                                                                                     && \
        export DEBIAN_FRONTEND=noninteractive                                                                         && \
        apt-get -y                                                                 update                             && \

CMakeLists.txt

@@ -650,6 +650,7 @@ set(PACKAGE_VERSION ${arpack_ng_VERSION})
 set(PACKAGE_URL "https://github.com/opencollab/arpack-ng/")
 set(LAPACK_LIBS ${LAPACK_LIBRARIES})
 set(BLAS_LIBS ${BLAS_LIBRARIES})
+set(EIGEN3_CFLAGS ${EIGEN3_INCLUDE_DIR})
 configure_file(arpack.pc.in arpack${LIBSUFFIX}.pc @ONLY)
 install(FILES ${CMAKE_CURRENT_BINARY_DIR}/arpack${LIBSUFFIX}.pc
         DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)

configure.ac

@@ -240,6 +240,9 @@ m4_ifdef([PKG_INSTALLDIR], [PKG_INSTALLDIR], [AC_SUBST([pkgconfigdir], [${libdir
 AC_CONFIG_FILES([arpack$LIBSUFFIX.pc:arpack.pc.in], [], [LIBSUFFIX="$LIBSUFFIX"])
 
 AC_SUBST([CMAKE_INSTALL_PREFIX], ["$prefix"])
+AC_SUBST([BLAS_LIBRARIES], ["$BLAS_LIBS"])
+AC_SUBST([LAPACK_LIBRARIES], ["$LAPACK_LIBS"])
+AC_SUBST([EIGEN3_INCLUDE_DIR], ["$EIGEN3_CFLAGS"])
 AC_CONFIG_FILES([arpack-ng-config.cmake:arpack-ng-config.cmake.in], [], [])
 
 AC_SUBST([arpack_ng_VERSION], ["$VERSION"])