diff options
Diffstat (limited to 'gdb/configure.ac')
| -rw-r--r-- | gdb/configure.ac | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/gdb/configure.ac b/gdb/configure.ac index feb28f3..73decd0 100644 --- a/gdb/configure.ac +++ b/gdb/configure.ac @@ -1054,6 +1054,154 @@ AC_SUBST(PYTHON_CFLAGS) AC_SUBST(PYTHON_CPPFLAGS) AC_SUBST(PYTHON_LIBS) +# -------------------- # +# Check for libguile. # +# -------------------- # + +dnl We check guile with pkg-config. + +AC_PATH_PROG(pkg_config_prog_path, pkg-config, missing) + +dnl Utility to simplify finding libguile. +dnl $1 = pkg-config-program +dnl $2 = space-separate list of guile versions to try +dnl $3 = yes|no, indicating whether to flag errors or ignore them +dnl $4 = the shell variable to assign the result to +dnl If libguile is found we store "yes" here. + +AC_DEFUN([AC_TRY_LIBGUILE], +[ + pkg_config=$1 + guile_version_list=$2 + flag_errors=$3 + define([have_libguile_var],$4) + if test "${pkg_config}" = "missing"; then + AC_ERROR(pkg-config program not found) + fi + if test ! -f "${pkg_config}"; then + AC_ERROR(pkg-config program ${pkg_config} not found) + fi + found_usable_guile=checking + AC_MSG_CHECKING([for usable guile from ${pkg_config}]) + for guile_version in ${guile_version_list}; do + ${pkg_config} --exists ${guile_version} 2>/dev/null + if test $? != 0; then + continue + fi + dnl pkg-config says the package exists, so if we get an error now, + dnl that's bad. + new_CPPFLAGS=`${pkg_config} --cflags ${guile_version}` + if test $? != 0; then + AC_ERROR(failure running pkg-config --cflags ${guile_version}) + fi + new_LIBS=`${pkg_config} --libs ${guile_version}` + if test $? != 0; then + AC_ERROR(failure running pkg-config --libs ${guile_version}) + fi + dnl If we get this far, great. + found_usable_guile=${guile_version} + break + done + if test "${found_usable_guile}" = "checking"; then + if test "${flag_errors}" = "yes"; then + AC_ERROR(unable to find usable guile version from "${guile_version_list}") + else + found_usable_guile=no + fi + fi + dnl One final sanity check. + dnl The user could have said --with-guile=python-2.7. + if test "${found_usable_guile}" != no; then + save_CPPFLAGS=$CPPFLAGS + save_LIBS=$LIBS + CPPFLAGS="$CPPFLAGS $new_CPPFLAGS" + LIBS="$LIBS $new_LIBS" + AC_LINK_IFELSE(AC_LANG_PROGRAM([[#include "libguile.h"]], + [[scm_init_guile ();]]), + [have_libguile_var=yes + GUILE_CPPFLAGS=$new_CPPFLAGS + GUILE_LIBS=$new_LIBS], + [found_usable_guile=no]) + CPPFLAGS=$save_CPPFLAGS + LIBS=$save_LIBS + if test "${found_usable_guile}" = no; then + if test "${flag_errors}" = yes; then + AC_MSG_FAILURE(linking guile version ${guile_version} test program failed) + fi + fi + fi + AC_MSG_RESULT([${found_usable_guile}]) +]) + +dnl There are several different values for --with-guile: +dnl +dnl no - Don't include guile support. +dnl yes - Include guile support, error if it's missing. +dnl The pkg-config program must be in $PATH. +dnl auto - Same as "yes", but if guile is missing from the system, +dnl fall back to "no". +dnl guile-version [guile-version-choice-2 ...] - +dnl A space-separated list of guile package versions to try. +dnl These are passed to pkg-config as-is. +dnl E.g., guile-2.0 or guile-2.2-uninstalled +dnl This requires making sure PKG_CONFIG_PATH is set appropriately. +dnl /path/to/pkg-config - +dnl Use this pkg-config program. +dnl NOTE: This needn't be the "real" pkg-config program. +dnl It could be a shell script. It is invoked as: +dnl pkg-config --exists $version +dnl pkg-config --cflags $version +dnl pkg-config --libs $version +dnl $version will be the default guile version (currently guile-2.0), +dnl but the program is free to ignore this. + +AC_ARG_WITH(guile, + AS_HELP_STRING([--with-guile@<:@=GUILE@:>@], [include guile support (auto/yes/no/<guile-version>/<pkg-config-program>)]), + [], [with_guile=auto]) +AC_MSG_CHECKING([whether to use guile]) +AC_MSG_RESULT([$with_guile]) + +try_guile_versions="guile-2.0" +have_libguile=no +case "${with_guile}" in +no) + AC_MSG_WARN([guile support disabled; some features will be unavailable.]) + ;; +auto) + AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${try_guile_versions}, no, have_libguile) + ;; +yes) + AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${try_guile_versions}, yes, have_libguile) + ;; +[[\\/]]* | ?:[[\\/]]*) + AC_TRY_LIBGUILE(${with_guile}, ${try_guile_versions}, yes, have_libguile) + ;; +"" | */*) + # Disallow --with=guile="" and --with-guile=foo/bar. + AC_ERROR(invalid value for --with-guile) + ;; +*) + # A space separate list of guile versions to try, in order. + AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${with_guile}, yes, have_libguile) + ;; +esac + +if test "${have_libguile}" != no; then + AC_DEFINE(HAVE_GUILE, 1, [Define if Guile interpreter is being linked in.]) + CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_GUILE_OBS)" + CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_GUILE_DEPS)" + CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_GUILE_SRCS)" + CONFIG_INSTALL="$CONFIG_INSTALL install-guile" + ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_GUILE_CFLAGS)" +else + # Even if Guile support is not compiled in, we need to have these files + # included. + CONFIG_OBS="$CONFIG_OBS guile.o" + CONFIG_SRCS="$CONFIG_SRCS guile/guile.c" +fi +AC_SUBST(GUILE_CPPFLAGS) +AC_SUBST(GUILE_LIBS) + # --------------------- # # Check for libmcheck. # # --------------------- # |