fish-shell/configure.ac
David Adam 3444fe87fb configure: check for definition of setupterm, not just linkability
Some platforms ship the headers and libraries for ncurses in different
packages, which can produce false positives when checking for their
presence.

Closes #3866.
2017-03-05 15:06:20 +08:00

719 lines
19 KiB
Text

#
# This file is the main build configuration file for fish. It is used
# to determine your systems capabilities, and tries to adapt fish to
# take maximum advantage of the services your system offers.
#
# Process this file using the 'autoconf' command to produce a working
# configure script, which should in turn be executed in order to
# configure the build process.
#
m4_syscmd([build_tools/git_version_gen.sh 2>/dev/null])
AC_PREREQ([2.60])
AC_INIT(fish,
m4_esyscmd([cut -f 3 -d ' ' FISH-BUILD-VERSION-FILE | tr -d '\n']),
fish-users@lists.sourceforge.net)
ac_clean_files=a.out.dSYM
#
# List of output variables produced by this configure script
#
AC_SUBST(HAVE_GETTEXT)
AC_SUBST(HAVE_DOXYGEN)
AC_SUBST(LDFLAGS_FISH)
AC_SUBST(WCHAR_T_BITS)
AC_SUBST(EXTRA_PCRE2)
#
# If needed, run autoconf to regenerate the configure file
#
# This makes sure that after running autoconf once to create the first
# version of configure, we never again need to worry about manually
# running autoconf to handle an updates configure.ac.
#
AC_MSG_CHECKING([if autoreconf needs to be run])
if test configure -ot configure.ac; then
AC_MSG_RESULT([yes])
if which autoreconf >/dev/null; then
# No need to provide any error messages if autoreconf fails, the
# shell and autconf should take care of that themselves
AC_MSG_NOTICE([running autoreconf --no-recursive])
if autoreconf --no-recursive; then
./configure "$@"
exit
fi
exit 1
else
AC_MSG_ERROR(
[cannot find the autoreconf program in your path.
This program needs to be run whenever the configure.ac file is modified.
Please install autoreconf and try again.]
)
fi
else
AC_MSG_RESULT([no])
fi
#
# If needed, run autoheader to regenerate config.h.in
#
# This makes sure we never ever have to run autoheader manually. It
# will be run whenever needed automatically.
#
AC_MSG_CHECKING([if autoheader needs to be run])
if test ! -f ./config.h.in -o config.h.in -ot configure.ac; then
AC_MSG_RESULT([yes])
if which autoheader >/dev/null; then
AC_MSG_NOTICE([running autoheader])
autoheader || exit 1
else
AC_MSG_ERROR(
[cannot find the autoheader program in your path.
This program needs to be run whenever the configure.ac file is modified.
Please install autotools and try again.]
)
fi
else
AC_MSG_RESULT([no])
fi
#
# Include the autoconf macros directory
#
AC_CONFIG_MACRO_DIRS([m4])
#
# Set up various programs needed for install
# Note AC_PROG_CXX sets CXXFLAGS if not set, which we want
# So ensure this happens before we modify CXXFLAGS below
# Do CC also, because PCRE2 will use it.
AC_PROG_CC
AC_PROG_CC_STDC # c99
AC_PROG_CXX
AC_LANG(C++)
AC_PROG_INSTALL
AC_PROG_LN_S
AC_PROG_MKDIR_P
AC_PROG_AWK
AC_PROG_FGREP
AC_PROG_SED
AC_USE_SYSTEM_EXTENSIONS
AX_CXX_COMPILE_STDCXX_11(noext,mandatory)
#
# Tell autoconf to create config.h header
#
AC_CONFIG_HEADERS(config.h)
AC_CANONICAL_HOST
#
# This adds markup to the code that results in a few extra compile
# time checks on recent GCC versions. It helps stop a few common bugs.
#
AH_BOTTOM([#if __GNUC__ >= 3
#ifndef __warn_unused
#define __warn_unused __attribute__ ((warn_unused_result))
#endif
#ifndef __sentinel
#define __sentinel __attribute__ ((sentinel))
#endif
#ifndef __packed
#define __packed __attribute__ ((packed))
#endif
#else
#define __warn_unused
#define __sentinel
#define __packed
#endif])
#
# Optionally drop gettext support
#
AC_ARG_WITH(
gettext,
AS_HELP_STRING(
[--without-gettext],
[do not translate messages, even if gettext is available]
),
[local_gettext=$withval],
[local_gettext=check]
)
AS_IF([test x$local_gettext != xno],
[ AC_CHECK_PROGS( [found_msgfmt], [msgfmt], [no] )
if test x$found_msgfmt != xno; then
AC_DEFINE([USE_GETTEXT],[1],[Perform string translations with gettext])
elif test "x$local_gettext" != "xcheck" ; then
AC_MSG_FAILURE([--with-gettext was given, but the msgfmt program could not be found])
else
local_gettext=no
fi
],
)
#
# Build/clean the documentation only if Doxygen is available
#
doxygen_minimum=1.8.7
AC_ARG_WITH(
doxygen,
AS_HELP_STRING(
[--with-doxygen],
[use Doxygen to regenerate documentation]
),
[use_doxygen=$withval],
[use_doxygen=auto]
)
AS_IF([test "$use_doxygen" != "no"],
[
AC_CHECK_PROGS([found_doxygen], [doxygen], [no])
if test "$found_doxygen" != no; then
# test version
AC_MSG_CHECKING([the doxygen version])
doxygen_version=`doxygen --version 2>/dev/null`
AC_MSG_RESULT([$doxygen_version])
dnl This requires autoconf 2.60 or newer
AS_VERSION_COMPARE([$doxygen_version], [$doxygen_minimum],
[ if test "$use_doxygen" = auto; then
AC_MSG_WARN([doxygen version $doxygen_version found, but $doxygen_minimum required])
HAVE_DOXYGEN=0
else
AC_MSG_FAILURE([doxygen version $doxygen_version found, but $doxygen_minimum required])
fi
],
[HAVE_DOXYGEN=1], [HAVE_DOXYGEN=1])
elif test "$use_doxygen" != auto; then
AC_MSG_FAILURE([--with-doxygen was given, but the doxygen program could not be found])
else
HAVE_DOXYGEN=0
fi
],
)
#
# Try to enable large file support. This will make sure that on systems
# where off_t can be either 32 or 64 bit, the latter size is used. On
# other systems, this should do nothing. (Hopefully)
#
AC_SYS_LARGEFILE
# fish does not use exceptions
# Disabling exceptions saves about 20% (!) of the compiled code size
CXXFLAGS="$CXXFLAGS -fno-exceptions"
#
# Set some warning flags
# Don't warn about missing field initializers, it has too many
# false positives for code like `struct termios tmodes = {};`
#
CXXFLAGS="$CXXFLAGS -Wextra -Wno-missing-field-initializers"
#
# This is needed in order to get the really cool backtraces on Linux
#
AC_MSG_CHECKING([for -rdynamic linker flag])
prev_LDFLAGS="$LDFLAGS"
LDFLAGS="$LDFLAGS -rdynamic"
AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],[[]])],
[
AC_MSG_RESULT([yes])
LDFLAGS_FISH="$LDFLAGS_FISH -rdynamic"
], [
AC_MSG_RESULT([no])
LDFLAGS_FISH="$LDFLAGS_FISH"
])
LDFLAGS="$prev_LDFLAGS"
#
# See if Linux procfs is present. This is used to get extra
# information about running processes.
#
AC_CHECK_FILES([/proc/self/stat])
# Disable curses macros that conflict with the STL
AC_DEFINE([NCURSES_NOMACROS], [1], [Define to 1 to disable ncurses macros that conflict with the STL])
AC_DEFINE([NOMACROS], [1], [Define to 1 to disable curses macros that conflict with the STL])
# Threading is excitingly broken on Solaris without adding -pthread to CXXFLAGS
# Only support GCC for now
dnl Ideally we would use the AX_PTHREAD macro here, but it's GPL3-licensed
dnl ACX_PTHREAD is way too old and seems to break the OS X build
dnl Both only check with AC_LANG(C) in any case
case $host_os in
solaris*)
CXXFLAGS="$CXXFLAGS -pthread"
CFLAGS="$CFLAGS -pthread"
;;
esac
#
# Check presense of various libraries. This is done on a per-binary
# level, since including various extra libraries in all binaries only
# because thay are used by some of them can cause extra bloat and
# slower compiles when developing fish.
#
# Check for os dependant libraries for all binaries.
AC_SEARCH_LIBS( nanosleep, rt, , [AC_MSG_ERROR([Cannot find the rt library, needed to build this package.] )] )
AC_SEARCH_LIBS( shm_open, rt, [AC_DEFINE([HAVE_SHM_OPEN], [1], [Define to 1 if the shm_open() function exists])] )
AC_SEARCH_LIBS( pthread_create, pthread, , [AC_MSG_ERROR([Cannot find the pthread library, needed to build this package.] )] )
AC_SEARCH_LIBS( setupterm, [ncurses tinfo curses], , [AC_MSG_ERROR([Could not find a curses implementation, needed to build fish. If this is Linux, try running 'sudo apt-get install libncurses5-dev' or 'sudo yum install ncurses-devel'])] )
AC_SEARCH_LIBS( [dladdr], [dl] )
if test x$local_gettext != xno; then
AC_SEARCH_LIBS( gettext, intl,,)
fi
#
# Check presense of various header files
#
AC_CHECK_HEADERS([getopt.h termios.h sys/resource.h term.h ncurses/term.h ncurses.h ncurses/curses.h curses.h stropts.h siginfo.h sys/select.h sys/ioctl.h execinfo.h spawn.h sys/sysctl.h])
if test x$local_gettext != xno; then
AC_CHECK_HEADERS([libintl.h])
fi
#
# Get the size in bits of wchar_t, needed for configuring the pcre2 build
# and for code that #includes pcre2.h
#
AC_CHECK_SIZEOF(wchar_t)
WCHAR_T_BITS=`expr 8 \* $ac_cv_sizeof_wchar_t`
AC_DEFINE_UNQUOTED([WCHAR_T_BITS], [$WCHAR_T_BITS], [The size of wchar_t in bits.])
#
# Detect nanoseconds fields in struct stat
#
AC_CHECK_MEMBERS([struct stat.st_ctime_nsec])
AC_CHECK_MEMBERS([struct stat.st_mtimespec.tv_nsec])
AC_CHECK_MEMBERS([struct stat.st_mtim.tv_nsec])
#
# Check for D_TYPE in dirent, only on BSD and Linux
#
AC_STRUCT_DIRENT_D_TYPE
#
# Check for presence of various functions used by fish
#
AC_CHECK_FUNCS( wcsndup )
AC_CHECK_FUNCS( futimes )
AC_CHECK_FUNCS( wcslcpy lrand48_r killpg )
AC_CHECK_FUNCS( backtrace_symbols getifaddrs )
AC_CHECK_FUNCS( futimens clock_gettime )
AC_CHECK_FUNCS( getpwent flock )
AC_CHECK_FUNCS( dirfd )
AC_CHECK_DECL( [mkostemp], [ AC_CHECK_FUNCS([mkostemp]) ] )
#
# Although setupterm is linkable thanks to SEARCH_LIBS above, some
# builds of ncurses include the actual headers in a different package
#
AC_CHECK_DECL( [setupterm], , [AC_MSG_ERROR([Could not find a curses implementation, needed to build fish. If this is Linux, try running 'sudo apt-get install libncurses5-dev' or 'sudo yum install ncurses-devel'])], [
#if HAVE_NCURSES_H
#include <ncurses.h>
#elif HAVE_NCURSES_CURSES_H
#include <ncurses/curses.h>
#else
#include <curses.h>
#endif
#if HAVE_TERM_H
#include <term.h>
#elif HAVE_NCURSES_TERM_H
#include <ncurses/term.h>
#endif
] )
dnl AC_CHECK_FUNCS uses C linkage, but sometimes (Solaris!) the behaviour is
dnl different with C++.
AC_MSG_CHECKING([for wcsdup])
AC_TRY_LINK( [ #include <wchar.h> ],
[ wchar_t* foo = wcsdup(L""); ],
[ AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_WCSDUP, 1, Define to 1 if you have the `wcsdup' function.)
],
[AC_MSG_RESULT(no)],
)
AC_MSG_CHECKING([for std::wcsdup])
AC_TRY_LINK( [ #include <wchar.h> ],
[ wchar_t* foo = std::wcsdup(L""); ],
[ AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_STD__WCSDUP, 1, Define to 1 if you have the `std::wcsdup' function.)
],
[AC_MSG_RESULT(no)],
)
AC_MSG_CHECKING([for wcscasecmp])
AC_TRY_LINK( [ #include <wchar.h> ],
[ int foo = wcscasecmp(L"", L""); ],
[ AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_WCSCASECMP, 1, Define to 1 if you have the `wcscasecmp' function.)
],
[AC_MSG_RESULT(no)],
)
AC_MSG_CHECKING([for std::wcscasecmp])
AC_TRY_LINK( [ #include <wchar.h> ],
[ int foo = std::wcscasecmp(L"", L""); ],
[ AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_STD__WCSCASECMP, 1, Define to 1 if you have the `std::wcscasecmp' function.)
],
[AC_MSG_RESULT(no)],
)
AC_MSG_CHECKING([for wcsncasecmp])
AC_TRY_LINK( [ #include <wchar.h> ],
[ int foo = wcsncasecmp(L"", L"", 0); ],
[ AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_WCSNCASECMP, 1, Define to 1 if you have the `wcsncasecmp' function.)
],
[AC_MSG_RESULT(no)],
)
AC_MSG_CHECKING([for std::wcsncasecmp])
AC_TRY_LINK( [ #include <wchar.h> ],
[ int foo = std::wcsncasecmp(L"", L"", 0); ],
[ AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_STD__WCSNCASECMP, 1, Define to 1 if you have the `std::wcsncasecmp' function.)
],
[AC_MSG_RESULT(no)],
)
if test x$local_gettext != xno; then
AC_CHECK_FUNCS( gettext )
#
# The Makefile also needs to know if we have gettext, so it knows if
# the translations should be installed.
#
AC_CHECK_FUNC( gettext, HAVE_GETTEXT=1, HAVE_GETTEXT=0 )
fi
#
# Here follows a list of small programs used to test for various
# features that Autoconf doesn't tell us about
#
#
# Check if struct winsize and TIOCGWINSZ exist
#
AC_MSG_CHECKING([if struct winsize and TIOCGWINSZ exist])
AC_LINK_IFELSE(
[
AC_LANG_PROGRAM(
[
#ifdef HAVE_TERMIOS_H
#include <termios.h>
#endif
#ifdef HAVE_SYS_IOCTL_H
#include <sys/ioctl.h>
#endif
],
[
struct winsize termsize = {0};
TIOCGWINSZ;
]
)
],
[
AC_MSG_RESULT(yes);
AC_DEFINE([HAVE_WINSIZE], [1], [Define to 1 if the winsize struct and TIOCGWINSZ macro exist])
],
[
AC_MSG_RESULT(no)
]
)
# Check for _nl_msg_cat_cntr symbol
AC_MSG_CHECKING([for _nl_msg_cat_cntr symbol])
AC_TRY_LINK(
[
#if HAVE_LIBINTL_H
#include <libintl.h>
#endif
#include <stdlib.h>
],
[
extern int _nl_msg_cat_cntr;
int tmp = _nl_msg_cat_cntr;
exit(tmp);
],
have__nl_msg_cat_cntr=yes,
have__nl_msg_cat_cntr=no
)
if test "$have__nl_msg_cat_cntr" = yes; then
AC_MSG_RESULT(yes)
AC_DEFINE(
[HAVE__NL_MSG_CAT_CNTR],
[1],
[Define to 1 if the _nl_msg_cat_cntr symbol is exported.]
)
else
AC_MSG_RESULT(no)
fi
# Check for sys_errlist
AC_MSG_CHECKING([for sys_errlist array])
AC_TRY_LINK(
[
#include <stdio.h>
],
[
const char *p;
p = sys_errlist[sys_nerr];
],
have_sys_errlist=yes,
have_sys_errlist=no
)
if test "$have_sys_errlist" = yes; then
AC_MSG_RESULT(yes)
AC_DEFINE(
[HAVE_SYS_ERRLIST],
[1],
[Define to 1 if the sys_errlist array is available.]
)
else
AC_MSG_RESULT(no)
fi
# Check for _sys_errs
AC_MSG_CHECKING([for _sys_errs array])
AC_TRY_LINK(
[
#include <string>
],
[
std::string p;
extern const char _sys_errs[];
extern const int _sys_index[];
p = _sys_errs[_sys_index[0]];
],
have__sys__errs=yes,
have__sys__errs=no
)
if test "$have__sys__errs" = yes; then
AC_MSG_RESULT(yes)
AC_DEFINE(
[HAVE__SYS__ERRS],
[1],
[Define to 1 if the _sys_errs array is available.]
)
else
AC_MSG_RESULT(no)
fi
# Check for Solaris curses tputs having fixed length parameter list.
AC_MSG_CHECKING([if we are using non varargs tparm.])
AC_COMPILE_IFELSE(
[
AC_LANG_PROGRAM(
[
#if HAVE_NCURSES_H
#include <ncurses.h>
#elif HAVE_NCURSES_CURSES_H
#include <ncurses/curses.h>
#else
#include <curses.h>
#endif
#if HAVE_TERM_H
#include <term.h>
#elif HAVE_NCURSES_TERM_H
#include <ncurses/term.h>
#endif
],
[
tparm( "" );
]
)
],
[tparm_solaris_kludge=no],
[tparm_solaris_kludge=yes]
)
if test "x$tparm_solaris_kludge" = "xyes"; then
AC_MSG_RESULT(yes)
AC_DEFINE(
[TPARM_SOLARIS_KLUDGE],
[1],
[Define to 1 if tparm accepts a fixed amount of paramters.]
)
else
AC_MSG_RESULT(no)
fi
# Check that threads actually work on Solaris
AC_MSG_CHECKING([for threadsafe errno])
AC_RUN_IFELSE(
[AC_LANG_PROGRAM([
#include <errno.h>
#include <pthread.h>
#include <signal.h>
void *thread1_func(void *p_arg)
{
errno = 1;
return 0;
}
],[
errno = 0;
pthread_t t1;
pthread_create(&t1, NULL, thread1_func, NULL);
pthread_join(t1, NULL);
return errno;
])],
[AC_MSG_RESULT(yes)],
[
AC_MSG_RESULT(no)
AC_MSG_FAILURE([errno is not threadsafe - check your compiler settings])
],
[AC_MSG_RESULT(crosscompiling, skipped)]
)
pcre2_min_version=10.21
EXTRA_PCRE2=
AC_ARG_WITH(
included-pcre2,
AS_HELP_STRING(
[--without-included-pcre2],
[build against the system PCRE2 library instead of the bundled version]
),
[included_pcre2=$withval],
[included_pcre2=auto]
)
if test "x$included_pcre2" != "xyes"; then
# test for pcre2-config
# can use either pcre2-config or pkgconfig here but only implement the former for now
AC_CHECK_PROG(PCRE2_CONFIG, pcre2-config, pcre2-config)
if test "x$PCRE2_CONFIG" != "x"; then
dnl AC_MSG_CHECKING([for $WCHAR_T_BITS-bit PCRE2])
XLIBS="$LIBS"
LIBS="$LIBS "`$PCRE2_CONFIG --libs$WCHAR_T_BITS 2>/dev/null`
XCXXFLAGS="$CXXFLAGS"
CXXFLAGS="$CXXFLAGS "`$PCRE2_CONFIG --cflags`
# cheat a bit here. the exact library is determined by $WCHAR_T_BITS,
# and so AC_CHECK_LIB won't work (can't use a variable as library name)
# AC_SEARCH_LIBS will use the existing $LIBS flags with no additional library first
AC_SEARCH_LIBS([pcre2_compile_$WCHAR_T_BITS], [],
[ # pcre2 lib found, check for minimum version
pcre2_version=`$PCRE2_CONFIG --version`
AS_VERSION_COMPARE([$pcre2_version], [$pcre2_min_version],
[ # version < minimum
AC_MSG_NOTICE([system PCRE2 library version $pcre2_version, need $pcre2_min_version or later])
if test "x$included_pcre2" = "xno"; then
# complain about pcre2 version
AC_MSG_ERROR([system PCRE2 library is too old, but --without-included-pcre2 was given.])
else
# use the internal version; undo changes to LIBS/CXXFLAGS
included_pcre2=yes
LIBS="$XLIBS"
CXXFLAGS="$XCXXFLAGS"
fi
],
[ # version == minimum
working_pcre2=yes
],
[ # version > minimum
working_pcre2=yes
]
)
],
[ # fail case; undo the changes to LIBS/CXXFLAGS
working_pcre2=no
LIBS="$XLIBS"
CXXFLAGS="$XCXXFLAGS"
]
)
fi
if test "x$working_pcre2" = "xyes"; then
AC_MSG_NOTICE([using system PCRE2 library])
else
# pcre2 size wrong or pcre2-config not found
# is it OK to use the included version?
if test "x$included_pcre2" = "xno"; then
# complain
AC_MSG_ERROR([cannot find system pcre2-config, but --without-included-pcre2 was given.
Make sure pcre2-config is installed and available in PATH.
You may need to install the PCRE2 development library for your system.])
else
# use the internal version
included_pcre2=yes
fi
fi
fi
# Re-test as value may have changed.
if test "x$included_pcre2" = "xyes"; then
# Build configure/Makefile for pcre2
AC_MSG_NOTICE([using included PCRE2 library])
# unfortunately these get added to the global configuration
ac_configure_args="$ac_configure_args --disable-pcre2-8 --enable-pcre2-$WCHAR_T_BITS --disable-shared"
AC_CONFIG_SUBDIRS([pcre2-10.22])
PCRE2_CXXFLAGS='-I$(PCRE2_DIR)/src'
PCRE2_LIBS='-L$(PCRE2_LIBDIR) -lpcre2-$(PCRE2_WIDTH)'
# Make the binary depend on the PCRE2 libraries so they get built
EXTRA_PCRE2='$(PCRE2_LIB)'
CXXFLAGS="$CXXFLAGS $PCRE2_CXXFLAGS"
LIBS="$LIBS $PCRE2_LIBS"
fi
# Allow configurable extra directories.
AC_SUBST(extra_completionsdir)
AC_ARG_WITH([extra-completionsdir],
AS_HELP_STRING([--with-extra-completionsdir=DIR],
[path for extra completions]),
[extra_completionsdir=$withval],
[extra_completionsdir='${datadir}/fish/vendor_completions.d'])
AC_SUBST(extra_functionsdir)
AC_ARG_WITH([extra_functionsdir],
AS_HELP_STRING([--with-extra-functionsdir=DIR],
[path for extra functions]),
[extra_functionsdir=$withval],
[extra_functionsdir='${datadir}/fish/vendor_functions.d'])
AC_SUBST(extra_confdir)
AC_ARG_WITH([extra-confdir],
AS_HELP_STRING([--with-extra-confdir=DIR],
[path for extra conf]),
[extra_confdir=$withval],
[extra_confdir='${datadir}/fish/vendor_conf.d'])
# Tell the world what we know.
AC_CONFIG_FILES([Makefile])
AC_OUTPUT
echo "fish is now configured."