From ece685fa5731827ee01925d839387d534c9ab3cb Mon Sep 17 00:00:00 2001 From: David Pirotte Date: Wed, 17 Aug 2016 22:44:36 -0300 Subject: [PATCH 02/11] Prepare to use GUile's autoconf support macros * m4/guile.m4: New file. Note that we don't want to rely on the same file installed by guile, because, if the user grab guile-cairo before to install guile itself, or guile has just not been installed or removed, despite the user sware to god it's there :), then guile-cairo configure script would fail with an error, instead of nicely reporting that Guile is missing. --- m4/guile.m4 | 413 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 413 insertions(+) create mode 100644 m4/guile.m4 diff --git a/m4/guile.m4 b/m4/guile.m4 new file mode 100644 index 0000000..d173930 --- /dev/null +++ b/m4/guile.m4 @@ -0,0 +1,413 @@ +## Autoconf macros for working with Guile. +## +## Copyright (C) 1998,2001, 2006, 2010, 2012, 2013 - 2015 Free +## Software Foundation, Inc. +## +## This library is free software; you can redistribute it and/or +## modify it under the terms of the GNU Lesser General Public License +## as published by the Free Software Foundation; either version 3 of +## the License, or (at your option) any later version. +## +## This library is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +## Lesser General Public License for more details. +## +## You should have received a copy of the GNU Lesser General Public +## License along with this library; if not, write to the Free Software +## Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +## 02110-1301 USA + +# serial 10 + +## Index +## ----- +## +## GUILE_PKG -- find Guile development files +## GUILE_PROGS -- set paths to Guile interpreter, config and tool programs +## GUILE_FLAGS -- set flags for compiling and linking with Guile +## GUILE_SITE_DIR -- find path to Guile "site" directory +## GUILE_GLOBAL_SITE_DIR -- find path to Guile "global site" directory +## GUILE_SITE_CCACHE_DIR -- find path to Guile "site-ccache" directory +## GUILE_CHECK -- evaluate Guile Scheme code and capture the return value +## GUILE_MODULE_CHECK -- check feature of a Guile Scheme module +## GUILE_MODULE_AVAILABLE -- check availability of a Guile Scheme module +## GUILE_MODULE_REQUIRED -- fail if a Guile Scheme module is unavailable +## GUILE_MODULE_EXPORTS -- check if a module exports a variable +## GUILE_MODULE_REQUIRED_EXPORT -- fail if a module doesn't export a variable + +## Code +## ---- + +## NOTE: Comments preceding an AC_DEFUN (starting from "Usage:") are massaged +## into doc/ref/autoconf-macros.texi (see Makefile.am in that directory). + +# GUILE_PKG -- find Guile development files +# +# Usage: GUILE_PKG([VERSIONS]) +# +# This macro runs the @code{pkg-config} tool to find development files +# for an available version of Guile. +# +# By default, this macro will search for the latest stable version of +# Guile (e.g. 2.0), falling back to the previous stable version +# (e.g. 1.8) if it is available. If no address@hidden file is +# found, an error is signalled. The found version is stored in +# @var{GUILE_EFFECTIVE_VERSION}. +# +# If @code{GUILE_PROGS} was already invoked, this macro ensures that the +# development files have the same effective version as the Guile +# program. +# +# @var{GUILE_EFFECTIVE_VERSION} is marked for substitution, as by +# @code{AC_SUBST}. +# +AC_DEFUN([GUILE_PKG], + [PKG_PROG_PKG_CONFIG + _guile_versions_to_search="m4_default([$1], [2.2 2.0])" + if test -n "$GUILE_EFFECTIVE_VERSION"; then + _guile_tmp="" + for v in $_guile_versions_to_search; do + if test "$v" = "$GUILE_EFFECTIVE_VERSION"; then + _guile_tmp=$v + fi + done + if test -z "$_guile_tmp"; then + AC_MSG_FAILURE([searching for guile development files for versions $_guile_versions_to_search, but previously found $GUILE version $GUILE_EFFECTIVE_VERSION]) + fi + _guile_versions_to_search=$GUILE_EFFECTIVE_VERSION + fi + GUILE_EFFECTIVE_VERSION="" + _guile_errors="" + for v in $_guile_versions_to_search; do + if test -z "$GUILE_EFFECTIVE_VERSION"; then + AC_MSG_NOTICE([checking for guile $v]) + PKG_CHECK_EXISTS([guile-$v], [GUILE_EFFECTIVE_VERSION=$v], []) + fi + done + + if test -z "$GUILE_EFFECTIVE_VERSION"; then + AC_MSG_ERROR([ +No Guile development packages were found. + +Please verify that you have Guile installed. If you installed Guile +from a binary distribution, please verify that you have also installed +the development packages. If you installed it yourself, you might need +to adjust your PKG_CONFIG_PATH; see the pkg-config man page for more. +]) + fi + AC_MSG_NOTICE([found guile $GUILE_EFFECTIVE_VERSION]) + AC_SUBST([GUILE_EFFECTIVE_VERSION]) + ]) + +# GUILE_FLAGS -- set flags for compiling and linking with Guile +# +# Usage: GUILE_FLAGS +# +# This macro runs the @code{pkg-config} tool to find out how to compile +# and link programs against Guile. It sets four variables: +# @var{GUILE_CFLAGS}, @var{GUILE_LDFLAGS}, @var{GUILE_LIBS}, and +# @var{GUILE_LTLIBS}. +# +# @var{GUILE_CFLAGS}: flags to pass to a C or C++ compiler to build code that +# uses Guile header files. This is almost always just one or more @code{-I} +# flags. +# +# @var{GUILE_LDFLAGS}: flags to pass to the compiler to link a program +# against Guile. This includes @address@hidden for the +# Guile library itself, and may also include one or more @code{-L} flag +# to tell the compiler where to find the libraries. But it does not +# include flags that influence the program's runtime search path for +# libraries, and will therefore lead to a program that fails to start, +# unless all necessary libraries are installed in a standard location +# such as @file{/usr/lib}. +# +# @var{GUILE_LIBS} and @var{GUILE_LTLIBS}: flags to pass to the compiler or to +# libtool, respectively, to link a program against Guile. It includes flags +# that augment the program's runtime search path for libraries, so that shared +# libraries will be found at the location where they were during linking, even +# in non-standard locations. @var{GUILE_LIBS} is to be used when linking the +# program directly with the compiler, whereas @var{GUILE_LTLIBS} is to be used +# when linking the program is done through libtool. +# +# The variables are marked for substitution, as by @code{AC_SUBST}. +# +AC_DEFUN([GUILE_FLAGS], + [AC_REQUIRE([GUILE_PKG]) + PKG_CHECK_MODULES(GUILE, [guile-$GUILE_EFFECTIVE_VERSION]) + + dnl GUILE_CFLAGS and GUILE_LIBS are already defined and AC_SUBST'd by + dnl PKG_CHECK_MODULES. But GUILE_LIBS to pkg-config is GUILE_LDFLAGS + dnl to us. + + GUILE_LDFLAGS=$GUILE_LIBS + + dnl Determine the platform dependent parameters needed to use rpath. + dnl AC_LIB_LINKFLAGS_FROM_LIBS is defined in gnulib/m4/lib-link.m4 and needs + dnl the file gnulib/build-aux/config.rpath. + AC_LIB_LINKFLAGS_FROM_LIBS([GUILE_LIBS], [$GUILE_LDFLAGS], []) + GUILE_LIBS="$GUILE_LDFLAGS $GUILE_LIBS" + AC_LIB_LINKFLAGS_FROM_LIBS([GUILE_LTLIBS], [$GUILE_LDFLAGS], [yes]) + GUILE_LTLIBS="$GUILE_LDFLAGS $GUILE_LTLIBS" + + AC_SUBST([GUILE_EFFECTIVE_VERSION]) + AC_SUBST([GUILE_CFLAGS]) + AC_SUBST([GUILE_LDFLAGS]) + AC_SUBST([GUILE_LIBS]) + AC_SUBST([GUILE_LTLIBS]) + ]) + +# GUILE_PREFIX_DIR -- find path to Guile "prefix" directory +# +# Usage: GUILE_PREFIX_DIR +# +# This looks for Guile's "prefix" directory and sets var +# @var{GUILE_PREFIX} to the path. Note that the var name is different +# from the macro name. +# +# The variable is marked for substitution, as by @code{AC_SUBST}. +# +AC_DEFUN([GUILE_PREFIX_DIR], + [AC_REQUIRE([GUILE_PKG]) + AC_MSG_CHECKING(for Guile prefix directory) + GUILE_PREFIX=`$PKG_CONFIG --print-errors --variable=prefix guile-$GUILE_EFFECTIVE_VERSION` + AC_MSG_RESULT($GUILE_PREFIX) + if test "$GUILE_PREFIX" = ""; then + AC_MSG_FAILURE(prefix not found) + fi + AC_SUBST(GUILE_PREFIX) + ]) + +# GUILE_SITE_DIR -- find path to Guile "site" directory +# +# Usage: GUILE_SITE_DIR +# +# This looks for Guile's "site" directory, usually something like +# PREFIX/share/guile/site/2.x, and sets var @var{GUILE_SITE} to the +# path. Note that the var name is different from the macro name. +# +# The variable is marked for substitution, as by @code{AC_SUBST}. +# +AC_DEFUN([GUILE_SITE_DIR], + [AC_REQUIRE([GUILE_PKG]) + AC_MSG_CHECKING(for Guile site directory) + GUILE_SITE=`$PKG_CONFIG --print-errors --variable=sitedir guile-$GUILE_EFFECTIVE_VERSION` + AC_MSG_RESULT($GUILE_SITE) + if test "$GUILE_SITE" = ""; then + AC_MSG_FAILURE(sitedir not found) + fi + AC_SUBST(GUILE_SITE) + ]) + +# GUILE_GLOBAL_SITE_DIR -- find path to Guile global site directory +# +# Usage: GUILE_GLOBAL_SITE_DIR +# +# This looks for Guile's global site directory, usually something like +# PREFIX/share/guile/site, and sets var @var{GUILE_GLOBAL_SITE} to the +# path. Note that the var name is different from the macro name. +# +# The variable is marked for substitution, as by @code{AC_SUBST}. +# +AC_DEFUN([GUILE_GLOBAL_SITE_DIR], + [AC_REQUIRE([GUILE_PROGS]) + AC_MSG_CHECKING(for Guile global site directory) + GUILE_GLOBAL_SITE=`$GUILE -c "(display (%global-site-dir))"` + AC_MSG_RESULT($GUILE_GLOBAL_SITE) + if test "$GUILE_GLOBAL_SITE" = ""; then + AC_MSG_FAILURE(global site dir not found) + fi + AC_SUBST(GUILE_GLOBAL_SITE) + ]) + +# GUILE_SITE_CCACHE_DIR -- find path to Guile "site-ccache" directory +# +# Usage: GUILE_SITE_CCACHE_DIR +# +# This looks for Guile's "site-ccache" directory, usually something +# like PREFIX/lib/guile/GUILE_EFFECTIVE_VERSION/site-ccache, and sets +# var @var{GUILE_SITE_CCACHE} to the path. Note that the var name is +# different from the macro name. +# +# The variable is marked for substitution, as by @code{AC_SUBST}. +# +AC_DEFUN([GUILE_SITE_CCACHE_DIR], + [AC_REQUIRE([GUILE_PKG]) + AC_MSG_CHECKING(for Guile site-ccache directory) + _guile_lib=`$PKG_CONFIG --print-errors --variable=libdir guile-$GUILE_EFFECTIVE_VERSION` + AC_MSG_RESULT($_guile_lib) + if test "$_guile_lib" = ""; then + AC_MSG_FAILURE(libdir not found) + fi + GUILE_SITE_CCACHE=$_guile_lib/guile/$GUILE_EFFECTIVE_VERSION/site-ccache + AC_SUBST(GUILE_SITE_CCACHE) + ]) + +# GUILE_PROGS -- set paths to Guile interpreter, config and tool programs +# +# Usage: GUILE_PROGS([VERSION]) +# +# This macro looks for programs @code{guile} and @code{guild}, setting +# variables @var{GUILE} and @var{GUILD} to their paths, respectively. +# If @code{guile} is not found, signal an error. +# +# By default, this macro will search for the latest stable version of +# Guile (e.g. 2.0). x.y or x.y.z versions can be specified. If an older +# version is found, the macro will signal an error. +# +# The effective version of the found @code{guile} is set to +# @var{GUILE_EFFECTIVE_VERSION}. This macro ensures that the effective +# version is compatible with the result of a previous invocation of +# @code{GUILE_FLAGS}, if any. +# +# As a legacy interface, it also looks for @code{guile-config} and +# @code{guile-tools}, setting @var{GUILE_CONFIG} and @var{GUILE_TOOLS}. +# +# The variables are marked for substitution, as by @code{AC_SUBST}. +# +AC_DEFUN([GUILE_PROGS], + [AC_PATH_PROG(GUILE,guile) + _guile_required_version="m4_default([$1], [$GUILE_EFFECTIVE_VERSION])" + if test -z "$_guile_required_version"; then + _guile_required_version=2.0 + fi + if test "$GUILE" = "" ; then + AC_MSG_ERROR([guile required but not found]) + fi + AC_SUBST(GUILE) + + _guile_effective_version=`$GUILE -c "(display (effective-version))"` + if test -z "$GUILE_EFFECTIVE_VERSION"; then + GUILE_EFFECTIVE_VERSION=$_guile_effective_version + elif test "$GUILE_EFFECTIVE_VERSION" != "$_guile_effective_version"; then + AC_MSG_ERROR([found development files for Guile $GUILE_EFFECTIVE_VERSION, but $GUILE has effective version $_guile_effective_version]) + fi + + _guile_major_version=`$GUILE -c "(display (major-version))"` + _guile_minor_version=`$GUILE -c "(display (minor-version))"` + _guile_micro_version=`$GUILE -c "(display (micro-version))"` + _guile_prog_version="$_guile_major_version.$_guile_minor_version.$_guile_micro_version" + + AC_MSG_CHECKING([for Guile version >= $_guile_required_version]) + _major_version=`echo $_guile_required_version | cut -d . -f 1` + _minor_version=`echo $_guile_required_version | cut -d . -f 2` + _micro_version=`echo $_guile_required_version | cut -d . -f 3` + if test "$_guile_major_version" -gt "$_major_version"; then + true + elif test "$_guile_major_version" -eq "$_major_version"; then + if test "$_guile_minor_version" -gt "$_minor_version"; then + true + elif test "$_guile_minor_version" -eq "$_minor_version"; then + if test -n "$_micro_version"; then + if test "$_guile_micro_version" -lt "$_micro_version"; then + AC_MSG_ERROR([Guile $_guile_required_version required, but $_guile_prog_version found]) + fi + fi + elif test "$GUILE_EFFECTIVE_VERSION" = "$_major_version.$_minor_version" -a -z "$_micro_version"; then + # Allow prereleases that have the right effective version. + true + else + as_fn_error $? "Guile $_guile_required_version required, but $_guile_prog_version found" "$LINENO" 5 + fi + else + AC_MSG_ERROR([Guile $_guile_required_version required, but $_guile_prog_version found]) + fi + AC_MSG_RESULT([$_guile_prog_version]) + + AC_PATH_PROG(GUILD,guild) + AC_SUBST(GUILD) + + AC_PATH_PROG(GUILE_CONFIG,guile-config) + AC_SUBST(GUILE_CONFIG) + if test -n "$GUILD"; then + GUILE_TOOLS=$GUILD + else + AC_PATH_PROG(GUILE_TOOLS,guile-tools) + fi + AC_SUBST(GUILE_TOOLS) + ]) + +# GUILE_CHECK -- evaluate Guile Scheme code and capture the return value +# +# Usage: GUILE_CHECK_RETVAL(var,check) +# +# @var{var} is a shell variable name to be set to the return value. +# @var{check} is a Guile Scheme expression, evaluated with "$GUILE -c", and +# returning either 0 or non-#f to indicate the check passed. +# Non-0 number or #f indicates failure. +# Avoid using the character "#" since that confuses autoconf. +# +AC_DEFUN([GUILE_CHECK], + [AC_REQUIRE([GUILE_PROGS]) + $GUILE -c "$2" > /dev/null 2>&1 + $1=$? + ]) + +# GUILE_MODULE_CHECK -- check feature of a Guile Scheme module +# +# Usage: GUILE_MODULE_CHECK(var,module,featuretest,description) +# +# @var{var} is a shell variable name to be set to "yes" or "no". +# @var{module} is a list of symbols, like: (ice-9 common-list). +# @var{featuretest} is an expression acceptable to GUILE_CHECK, q.v. +# @var{description} is a present-tense verb phrase (passed to AC_MSG_CHECKING). +# +AC_DEFUN([GUILE_MODULE_CHECK], + [AC_MSG_CHECKING([if $2 $4]) + GUILE_CHECK($1,(use-modules $2) (exit ((lambda () $3)))) + if test "$$1" = "0" ; then $1=yes ; else $1=no ; fi + AC_MSG_RESULT($$1) + ]) + +# GUILE_MODULE_AVAILABLE -- check availability of a Guile Scheme module +# +# Usage: GUILE_MODULE_AVAILABLE(var,module) +# +# @var{var} is a shell variable name to be set to "yes" or "no". +# @var{module} is a list of symbols, like: (ice-9 common-list). +# +AC_DEFUN([GUILE_MODULE_AVAILABLE], + [GUILE_MODULE_CHECK($1,$2,0,is available) + ]) + +# GUILE_MODULE_REQUIRED -- fail if a Guile Scheme module is unavailable +# +# Usage: GUILE_MODULE_REQUIRED(symlist) +# +# @var{symlist} is a list of symbols, WITHOUT surrounding parens, +# like: ice-9 common-list. +# +AC_DEFUN([GUILE_MODULE_REQUIRED], + [GUILE_MODULE_AVAILABLE(ac_guile_module_required, ($1)) + if test "$ac_guile_module_required" = "no" ; then + AC_MSG_ERROR([required guile module not found: ($1)]) + fi + ]) + +# GUILE_MODULE_EXPORTS -- check if a module exports a variable +# +# Usage: GUILE_MODULE_EXPORTS(var,module,modvar) +# +# @var{var} is a shell variable to be set to "yes" or "no". +# @var{module} is a list of symbols, like: (ice-9 common-list). +# @var{modvar} is the Guile Scheme variable to check. +# +AC_DEFUN([GUILE_MODULE_EXPORTS], + [GUILE_MODULE_CHECK($1,$2,$3,exports `$3') + ]) + +# GUILE_MODULE_REQUIRED_EXPORT -- fail if a module doesn't export a variable +# +# Usage: GUILE_MODULE_REQUIRED_EXPORT(module,modvar) +# +# @var{module} is a list of symbols, like: (ice-9 common-list). +# @var{modvar} is the Guile Scheme variable to check. +# +AC_DEFUN([GUILE_MODULE_REQUIRED_EXPORT], + [GUILE_MODULE_EXPORTS(guile_module_required_export,$1,$2) + if test "$guile_module_required_export" = "no" ; then + AC_MSG_ERROR([module $1 does not export $2; required]) + fi + ]) + +## guile.m4 ends here -- 2.8.1