* configure.ac: Call AC_GNU_SOURCE to make glibc's strsignal
definition visible even to non-GNU compilers.
This commit is contained in:
Alexandre Duret-Lutz
parent
b4eda5e84d
commit
85d2b7b287
2 changed files with 149 additions and 79 deletions
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@ -1,11 +1,11 @@
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# Process this file with autoconf to produce a configure script.
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AC_PREREQ([2.53])
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AC_INIT([lbtt], [1.0.3], [heikki.tauriainen@hut.fi])
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AC_REVISION([Revision: 1.3])
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AC_PREREQ([2.59])
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AC_INIT([lbtt], [1.1.0], [heikki.tauriainen@hut.fi])
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AC_REVISION([Revision: 1.4])
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AC_CONFIG_SRCDIR([src/main.cc])
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AC_CONFIG_HEADERS([config.h])
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AM_INIT_AUTOMAKE
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AM_CONFIG_HEADER([config.h])
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@ -18,31 +18,68 @@ AC_PROG_CXXCPP
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AM_PROG_LEX
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AC_PROG_YACC
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# Check whether the user has explicitly disabled the test for the availability
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# of the GNU readline library.
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# Check whether the user has explicitly disabled support for the GNU readline
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# library.
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readline=yes
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readline_includedir=
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readline_libdir=
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AC_ARG_WITH([readline],
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[AC_HELP_STRING([--without-readline],
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[disable check for the GNU readline library])],
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[if test x"${withval}" = xno; then readline=no; fi])
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AC_ARG_WITH(
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[readline],
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[AS_HELP_STRING(
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[--without-readline],
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[disable support for the GNU readline library (default enable)])],
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[if test x"${withval}" = xno; then readline=no; fi])
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AC_ARG_WITH(
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[readline-prefix],
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[AS_HELP_STRING(
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[--with-readline-prefix=DIR],
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[location where GNU readline is installed (optional)])],
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[readline_includedir="${withval}/include"
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readline_libdir="${withval}/lib"])
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AC_ARG_WITH(
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[readline-includes],
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[AS_HELP_STRING(
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[--with-readline-includes=DIR],
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[location where GNU readline headers are installed (optional)])],
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[readline_includedir="${withval}"])
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AC_ARG_WITH(
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[readline-libs],
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[AS_HELP_STRING(
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[--with-readline-libs=DIR],
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[location where GNU readline libraries are installed (optional)])],
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[readline_libdir="${withval}"])
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old_CPPFLAGS=${CPPFLAGS}
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old_LDFLAGS=${LDFLAGS}
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if test -n "${readline_includedir}"; then
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CPPFLAGS="${CPPFLAGS} -I${readline_includedir}"
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fi
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if test -n "${readline_libdir}"; then
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LDFLAGS="${LDFLAGS} -L${readline_libdir}"
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fi
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# Check for the availability of headers.
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AC_HEADER_STDC
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AC_CHECK_HEADERS([fcntl.h])
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AC_CHECK_HEADERS([libintl.h fcntl.h sys/times.h])
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AC_HEADER_SYS_WAIT
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# Check for the availability of the GNU readline headers.
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if test "${readline}" = yes; then
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rl_history_h="readline/history.h"
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rl_readline_h="readline/readline.h"
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AC_CHECK_HEADERS([${rl_history_h} ${rl_readline_h}],
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[],
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[readline=no])
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AC_CHECK_HEADERS([${rl_history_h} ${rl_readline_h}], [], [readline=no])
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fi
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AC_LANG([C++])
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@ -51,30 +88,43 @@ AC_LANG([C++])
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# version of this header that cannot be compiled using g++; enable a workaround
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# if necessary.
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AC_CHECK_HEADERS([obstack.h],
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[AC_MSG_CHECKING([whether obstack.h compilation workaround is needed])
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AC_TRY_COMPILE([#include <obstack.h>],
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[#if __GLIBC__ == 2 && __GLIBC_MINOR__ == 3
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obstack_alloc(0, 0);
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#endif],
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[AC_MSG_RESULT([no])],
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[AC_MSG_RESULT([yes])
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AC_DEFINE([GLIBC_OBSTACK_WORKAROUND],
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[1],
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[Define to 1 to enable an obstack.h C++ compilation workaround for GNU libc 2.3.])])])
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AC_CHECK_HEADERS(
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[obstack.h],
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[AC_MSG_CHECKING([whether obstack.h compilation workaround is needed])
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old_cxxflags=${CXXFLAGS}
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CXXFLAGS="${CXXFLAGS} -Werror"
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AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM(
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[[#include <obstack.h>]],
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[[
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#ifdef __GLIBC__ == 2 && __GLIBC_MINOR__ = 3
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obstack_alloc(0, 0);
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#endif
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]])],
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[AC_MSG_RESULT([no])],
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[AC_MSG_RESULT([yes])
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AC_DEFINE(
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[GLIBC_OBSTACK_WORKAROUND],
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[1],
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[Define to 1 to enable an obstack.h C++ compilation workaround for GNU libc 2.3.])])
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CXXFLAGS=${old_cxxflags}])
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# Check for the availablility of the sstream or strstream header.
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AC_CHECK_HEADERS([sstream],
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[],
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[AC_CHECK_HEADERS([strstream],
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[],
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[AC_MSG_ERROR([missing one or more standard C++ headers])])])
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AC_CHECK_HEADERS(
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[sstream],
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[],
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[AC_CHECK_HEADERS(
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[strstream],
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[],
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[AC_MSG_ERROR([missing one or more standard C++ headers])])])
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# Checks for typedefs, structures, and compiler characteristics.
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AC_GNU_SOURCE
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# Check for the availability of the slist header (an extension to the C++
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# Standard Template Library). (In GCC 3.x the header is in the ext/
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# subdirectory of the directory containing the standard C++ headers.)
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@ -82,30 +132,35 @@ AC_CHECK_HEADERS([sstream],
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AC_MSG_CHECKING([for slist])
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for slist_header in slist ext/slist no; do
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if test "${slist_header}" != no; then
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AC_TRY_CPP([#include <${slist_header}>], [break])
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AC_PREPROC_IFELSE(
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[AC_LANG_SOURCE([[#include <${slist_header}>]])],
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[break])
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fi
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done
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# Try to determine the C++ namespace in which the class slist resides.
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# (For example, GCC versions 3.1, 3.1.1 and 3.2 put slist into the
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# __gnu_cxx namespace.)
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# (For example, GCC versions >= 3.1 put slist into the __gnu_cxx namespace.)
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if test "${slist_header}" != no; then
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for slist_namespace in std __gnu_cxx error; do
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if test "${slist_namespace}" != error; then
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AC_TRY_LINK([#include <${slist_header}>],
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[${slist_namespace}::slist<int> s;],
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[break])
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AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM(
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[[#include <${slist_header}>]],
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[[${slist_namespace}::slist<int> s;]])],
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[break])
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fi
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done
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if test "${slist_namespace}" != error; then
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AC_MSG_RESULT([header <${slist_header}>, typename ${slist_namespace}::slist])
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AC_DEFINE([HAVE_SLIST],
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[1],
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[Define to 1 if you have the <slist> or <ext/slist> header file.])
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AC_DEFINE_UNQUOTED([SLIST_NAMESPACE],
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[${slist_namespace}],
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[Define as the name of the C++ namespace containing slist.])
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AC_DEFINE(
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[HAVE_SLIST],
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[1],
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[Define to 1 if you have the <slist> or <ext/slist> header file.])
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AC_DEFINE_UNQUOTED(
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[SLIST_NAMESPACE],
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[${slist_namespace}],
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[Define as the name of the C++ namespace containing slist.])
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AC_SUBST([INCLUDE_SLIST_HEADER], ["#include <${slist_header}>"])
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else
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slist_header=no
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@ -114,27 +169,21 @@ fi
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if test "${slist_header}" = no; then
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AC_MSG_RESULT([no])
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# Check for the availability of the single_client_alloc memory allocator
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# available in some compilers supporting the SGI extensions to the Standard
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# template library (for example, pre-3.0 versions of gcc). This check is not
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# needed if no suitable slist header was found above, since in that case the
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# compiler does not support the SGI extensions.
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else
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AC_MSG_CHECKING([for single_client_alloc])
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AC_TRY_LINK([#include <${slist_header}>],
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[using namespace std;
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${slist_namespace}::slist<int, single_client_alloc> s;],
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[AC_MSG_RESULT([yes])
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AC_DEFINE([HAVE_SINGLE_CLIENT_ALLOC],
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[1],
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[Define if your C++ compiler supports the single_client_allocator memory allocator.])],
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[AC_MSG_RESULT([no])])
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fi
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AC_LANG(C)
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AC_CHECK_TYPES(
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[unsigned long long int],
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[AC_DEFINE(
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[BIGUINT],
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[unsigned long long int],
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[Define to an unsigned integer type supported by your compiler.])],
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[AC_DEFINE(
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[BIGUINT],
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[unsigned long int],
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[Define to an unsigned integer type supported by your compiler.])])
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AC_C_CONST
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AC_C_INLINE
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@ -142,12 +191,14 @@ AC_C_INLINE
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# Checks for library functions.
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AC_TYPE_SIGNAL
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AC_CHECK_FUNCS([mkdir strchr strtod strtol strtoul getopt_long isatty])
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AC_CHECK_FUNCS(
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[strchr strtod strtol strtoul strerror mkdir mkstemp open read write close popen pclose pipe fork execvp getpid waitpid alarm sigaction sigprocmask sigemptyset sigaddset times sysconf],
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[],
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[AC_MSG_ERROR([missing one of the library functions required for compilation])])
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AC_CHECK_FUNCS([strsignal isatty getopt_long])
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if test x"${ac_cv_func_getopt_long}" = xno; then
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AC_LIBOBJ([getopt])
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AC_LIBOBJ([getopt1])
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AC_CHECK_HEADERS([libintl.h])
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AC_CHECK_FUNCS([memset])
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fi
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@ -159,42 +210,56 @@ if test "${readline}" = yes; then
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for READLINELIBS in "-lreadline" "-lreadline -lcurses" "-lreadline -ltermcap" error; do
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if test "${READLINELIBS}" != error; then
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LIBS="${oldlibs} ${READLINELIBS}"
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AC_TRY_LINK([#include <stdio.h>
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#include <${rl_history_h}>
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#include <${rl_readline_h}>],
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[using_history(); readline(""); add_history("");],
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[break])
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AC_LINK_IFELSE(
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[AC_LANG_PROGRAM(
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[[
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#include <stdio.h>
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#include <${rl_history_h}>
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#include <${rl_readline_h}>
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]],
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[[using_history(); readline(""); add_history("");]])],
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[break])
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fi
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done
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LIBS=${oldlibs}
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if test "${READLINELIBS}" != error; then
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AC_DEFINE([HAVE_READLINE],
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[1],
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[Define if you have the GNU readline library.])
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AC_DEFINE(
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[HAVE_READLINE],
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[1],
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[Define if you have the GNU readline library.])
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AC_SUBST([READLINELIBS])
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AC_MSG_RESULT([${READLINELIBS}])
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else
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AC_MSG_RESULT([no suitable libraries found, readline support disabled])
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READLINELIBS=""
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readline=no
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fi
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fi
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if test "${readline}" = no; then
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CPPFLAGS=${old_CPPFLAGS}
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LDFLAGS=${old_LDFLAGS}
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fi
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# Check for the availability of the `rand48' family of random number
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# generation functions.
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have_rand48=yes
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AC_CHECK_FUNCS([srand48 lrand48 seed48],
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[],
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[have_rand48=no
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AC_CHECK_FUNCS([rand srand],
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[],
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[AC_MSG_ERROR([missing library functions for random number generation])])])
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AC_CHECK_FUNCS(
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[srand48 lrand48 seed48],
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[],
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[have_rand48=no
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AC_CHECK_FUNCS(
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[rand srand],
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[],
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[AC_MSG_ERROR([missing library functions for random number generation])])])
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if test "${have_rand48}" = yes; then
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AC_DEFINE([HAVE_RAND48],
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[1],
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[Define if you have the `rand48' family of random number generation functions.])
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AC_DEFINE(
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[HAVE_RAND48],
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[1],
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[Define if you have the `rand48' family of random number generation functions.])
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fi
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