X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=blobdiff_plain;f=acinclude.m4;h=5c39bc05b9b1d498954885580b62ca4f887af168;hp=f4368eb4fe1fa1d0838d82857a4704790b75b0ac;hb=e29584838dc377a2c2b00731a0ffdbdc3425f214;hpb=01d8c0983f416d0df74255b2c429a5c69a3121cf diff --git a/acinclude.m4 b/acinclude.m4 index f4368eb4..5c39bc05 100644 --- a/acinclude.m4 +++ b/acinclude.m4 @@ -8,12 +8,12 @@ dnl Generally, it is a bad idea to put specialized header files for a library dnl into a generic directory like /usr/local/include/. Instead, one should put dnl them into a subdirectory. GiNaC does it, NTL does it. Unfortunately, CLN dnl doesn't do so but some people choose to do it by hand. In these cases we -dnl need to #include , otherwise #include . This macro +dnl need to #include , otherwise #include . This macro dnl tries to be clever and find out the correct way by defining the variable dnl HAVE_CLN_CLN_H in config.h: AC_DEFUN(GINAC_CHECK_CLN_H, [AC_PROVIDE([$0]) - AC_CHECK_HEADERS(CLN/cln.h, , + AC_CHECK_HEADERS(cln/cln.h, , AC_CHECK_HEADERS(cln.h, , AC_MSG_ERROR([cannot find header for Bruno Haible's CLN]); ) @@ -25,20 +25,20 @@ dnl C++ is more strongly typed than C. Therefore we need to work with the dnl more fundamental AC_TRY_LINK instead. AC_DEFUN(GINAC_CHECK_LIBCLN, [AC_PROVIDE([$0]) - AC_MSG_CHECKING([how to link with libcln]) + AC_MSG_CHECKING([for doublefactorial in -lcln]) saved_LIBS="${LIBS}" AC_CACHE_VAL(ginac_cv_lib_cln_link, [LIBS="-lcln" - case "${ac_cv_header_CLN_cln_h}" in + case "${ac_cv_header_cln_cln_h}" in "yes") - AC_TRY_LINK([#include ], - [factorial(1);], + AC_TRY_LINK([#include ], + [doublefactorial(2);], ginac_cv_lib_cln_link="-lcln", ginac_cv_lib_cln_link="fail") ;; *) - AC_TRY_LINK([#include ], - [factorial(1);], + AC_TRY_LINK([#include ], + [doublefactorial(2);], ginac_cv_lib_cln_link="-lcln", ginac_cv_lib_cln_link="fail") ;; @@ -47,71 +47,78 @@ AC_DEFUN(GINAC_CHECK_LIBCLN, case "${ginac_cv_lib_cln_link}" in dnl linking worked: "-lcln") - LIBS="-lcln ${saved_LIBS}" - AC_MSG_RESULT([-lcln]) - GINAC_CHECK_LIBCLN_SANITY + LIBS="${ginac_cv_lib_cln_link} ${saved_LIBS}" + AC_MSG_RESULT("yes") ;; dnl linking failed: "fail") LIBS="${saved_LIBS}" - AC_MSG_RESULT([]) - AC_MSG_WARN([linking with libcln failed]) - ;; -dnl should never ever get here: - *) - LIBS="${saved_LIBS}" + AC_MSG_RESULT([no]) + GINAC_ERROR([I could not successfully link a test-program against libcln and run it. + You either need to set \$LDFLAGS or install/update the CLN library.]) ;; esac ]) -dnl Check if the CLN library suits our needs, i.e. if it is new enough, by -dnl trying to run into a little bug which was present till version 1.0.1 and -dnl then removed. -AC_DEFUN(GINAC_CHECK_LIBCLN_SANITY, - [AC_PROVIDE([$0]) - AC_MSG_CHECKING([whether libcln behaves sane]) - AC_CACHE_VAL(ginac_cv_lib_cln_integrity, - [ - case "${ac_cv_header_CLN_cln_h}" in - "yes") - AC_TRY_RUN([#include -int main() { -cl_RA q(3); q = q/2; cl_RA p(3); p = p/2; -if (q+p != 3) return 1; else return 0; -}], - ginac_cv_lib_cln_integrity="sane", - ginac_cv_lib_cln_integrity="insane", - ginac_cv_lib_cln_integrity="guessing sane") - ;; - *) - AC_TRY_RUN([#include -int main() { -cl_RA q(3); q = q/2; cl_RA p(3); p = p/2; -if (q+p != 3) return 1; else return 0; -}], - ginac_cv_lib_cln_integrity="sane", - ginac_cv_lib_cln_integrity="insane", - ginac_cv_lib_cln_integrity="guessing sane") - ;; - esac - ]) - case "${ginac_cv_lib_cln_integrity}" in -dnl exit status was 0: - "sane") - AC_MSG_RESULT([yes]) - ;; -dnl exit status was not 0: - "insane") - AC_MSG_RESULT([no]) - AC_MSG_WARN([maybe version of libcln is older than 1.0.2?]) - ;; -dnl test-program was not run because we are cross-compiling: - "guessing sane") - AC_MSG_RESULT([hopefully]) - ;; -dnl should never ever get here: - *) - AC_MSG_WARN([you found a bug in the configure script!]) - ;; - esac +dnl Usage: GINAC_TERMCAP +dnl libreadline is based on the termcap functions. +dnl Some systems have tgetent(), tgetnum(), tgetstr(), tgetflag(), tputs(), +dnl tgoto() in libc, some have it in libtermcap, some have it in libncurses. +dnl When both libtermcap and libncurses exist, we prefer the latter, because +dnl libtermcap is being phased out. +AC_DEFUN(GINAC_TERMCAP, +[LIBTERMCAP= +AC_CHECK_FUNCS(tgetent) +if test "x$ac_cv_func_tgetent" = "xyes"; then + : +else + AC_CHECK_LIB(ncurses, tgetent, LIBTERMCAP="-lncurses") + if test -z "$LIBTERMCAP"; then + AC_CHECK_LIB(termcap, tgetent, LIBTERMCAP="-ltermcap") + fi +fi +AC_SUBST(LIBTERMCAP) ]) + +dnl Usage: GINAC_ERROR(message) +dnl This macro displays the warning "message" and sets the flag ginac_error +dnl to yes. +AC_DEFUN(GINAC_ERROR,[ +ginac_error_txt="$ginac_error_txt +** $1 +" +ginac_error=yes]) + +dnl Usage: GINAC_WARNING(message) +dnl This macro displays the warning "message" and sets the flag ginac_warning +dnl to yes. +AC_DEFUN(GINAC_WARNING,[ +ginac_warning_txt="$ginac_warning_txt +== $1 +" +ginac_warning=yes]) + +dnl Usage: GINAC_CHECK_ERRORS +dnl (preferably to be put at end of configure.in) +dnl This macro displays a warning message if GINAC_ERROR or GINAC_WARNING +dnl has occured previously. +AC_DEFUN(GINAC_CHECK_ERRORS,[ +if test "x${ginac_error}" = "xyes"; then + echo "**** The following problems have been detected by configure." + echo "**** Please check the messages below before running \"make\"." + echo "**** (see the section 'Common Problems' in the INSTALL file)" + echo "$ginac_error_txt" + if test "x${ginac_warning_txt}" != "x"; then + echo "${ginac_warning_txt}" + fi + echo "deleting cache ${cache_file}" + rm -f $cache_file + else + if test x$ginac_warning = xyes; then + echo "=== The following minor problems have been detected by configure." + echo "=== Please check the messages below before running \"make\"." + echo "=== (see the section 'Common Problems' in the INSTALL file)" + echo "$ginac_warning_txt" + fi + echo "Configuration of GiNaC $VERSION done. Now type \"make\"." +fi])