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gentoo-overlay/app-i18n/libchewing/files/libchewing-0.5.1-autoconf-a...

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https://github.com/chewing/libchewing/issues/308
--- /m4/ax_pthread.m4
+++ /m4/ax_pthread.m4
@@ -1,5 +1,5 @@
# ===========================================================================
-# http://www.gnu.org/software/autoconf-archive/ax_pthread.html
+# https://www.gnu.org/software/autoconf-archive/ax_pthread.html
# ===========================================================================
#
# SYNOPSIS
@@ -19,10 +19,10 @@
# is necessary on AIX to use the special cc_r compiler alias.)
#
# NOTE: You are assumed to not only compile your program with these flags,
-# but also link it with them as well. e.g. you should link with
+# but also to link with them as well. For example, you might link with
# $PTHREAD_CC $CFLAGS $PTHREAD_CFLAGS $LDFLAGS ... $PTHREAD_LIBS $LIBS
#
-# If you are only building threads programs, you may wish to use these
+# If you are only building threaded programs, you may wish to use these
# variables in your default LIBS, CFLAGS, and CC:
#
# LIBS="$PTHREAD_LIBS $LIBS"
@@ -30,8 +30,8 @@
# CC="$PTHREAD_CC"
#
# In addition, if the PTHREAD_CREATE_JOINABLE thread-attribute constant
-# has a nonstandard name, defines PTHREAD_CREATE_JOINABLE to that name
-# (e.g. PTHREAD_CREATE_UNDETACHED on AIX).
+# has a nonstandard name, this macro defines PTHREAD_CREATE_JOINABLE to
+# that name (e.g. PTHREAD_CREATE_UNDETACHED on AIX).
#
# Also HAVE_PTHREAD_PRIO_INHERIT is defined if pthread is found and the
# PTHREAD_PRIO_INHERIT symbol is defined when compiling with
@@ -67,7 +67,7 @@
# Public License for more details.
#
# You should have received a copy of the GNU General Public License along
-# with this program. If not, see <http://www.gnu.org/licenses/>.
+# with this program. If not, see <https://www.gnu.org/licenses/>.
#
# As a special exception, the respective Autoconf Macro's copyright owner
# gives unlimited permission to copy, distribute and modify the configure
@@ -82,35 +82,40 @@
# modified version of the Autoconf Macro, you may extend this special
# exception to the GPL to apply to your modified version as well.
-#serial 20
+#serial 24
AU_ALIAS([ACX_PTHREAD], [AX_PTHREAD])
AC_DEFUN([AX_PTHREAD], [
AC_REQUIRE([AC_CANONICAL_HOST])
+AC_REQUIRE([AC_PROG_CC])
+AC_REQUIRE([AC_PROG_SED])
AC_LANG_PUSH([C])
ax_pthread_ok=no
# We used to check for pthread.h first, but this fails if pthread.h
-# requires special compiler flags (e.g. on True64 or Sequent).
+# requires special compiler flags (e.g. on Tru64 or Sequent).
# It gets checked for in the link test anyway.
# First of all, check if the user has set any of the PTHREAD_LIBS,
# etcetera environment variables, and if threads linking works using
# them:
-if test x"$PTHREAD_LIBS$PTHREAD_CFLAGS" != x; then
- save_CFLAGS="$CFLAGS"
+if test "x$PTHREAD_CFLAGS$PTHREAD_LIBS" != "x"; then
+ ax_pthread_save_CC="$CC"
+ ax_pthread_save_CFLAGS="$CFLAGS"
+ ax_pthread_save_LIBS="$LIBS"
+ AS_IF([test "x$PTHREAD_CC" != "x"], [CC="$PTHREAD_CC"])
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
- save_LIBS="$LIBS"
LIBS="$PTHREAD_LIBS $LIBS"
- AC_MSG_CHECKING([for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS])
- AC_TRY_LINK_FUNC(pthread_join, ax_pthread_ok=yes)
- AC_MSG_RESULT($ax_pthread_ok)
- if test x"$ax_pthread_ok" = xno; then
+ AC_MSG_CHECKING([for pthread_join using $CC $PTHREAD_CFLAGS $PTHREAD_LIBS])
+ AC_LINK_IFELSE([AC_LANG_CALL([], [pthread_join])], [ax_pthread_ok=yes])
+ AC_MSG_RESULT([$ax_pthread_ok])
+ if test "x$ax_pthread_ok" = "xno"; then
PTHREAD_LIBS=""
PTHREAD_CFLAGS=""
fi
- LIBS="$save_LIBS"
- CFLAGS="$save_CFLAGS"
+ CC="$ax_pthread_save_CC"
+ CFLAGS="$ax_pthread_save_CFLAGS"
+ LIBS="$ax_pthread_save_LIBS"
fi
# We must check for the threads library under a number of different
@@ -123,7 +128,7 @@
# which indicates that we try without any flags at all, and "pthread-config"
# which is a program returning the flags for the Pth emulation library.
-ax_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config"
+ax_pthread_flags="pthreads none -Kthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config"
# The ordering *is* (sometimes) important. Some notes on the
# individual items follow:
@@ -132,68 +137,225 @@
# none: in case threads are in libc; should be tried before -Kthread and
# other compiler flags to prevent continual compiler warnings
# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)
-# -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
-# lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
-# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads)
-# -pthreads: Solaris/gcc
-# -mthreads: Mingw32/gcc, Lynx/gcc
+# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads), Tru64
+# (Note: HP C rejects this with "bad form for `-t' option")
+# -pthreads: Solaris/gcc (Note: HP C also rejects)
# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it
-# doesn't hurt to check since this sometimes defines pthreads too;
-# also defines -D_REENTRANT)
-# ... -mt is also the pthreads flag for HP/aCC
+# doesn't hurt to check since this sometimes defines pthreads and
+# -D_REENTRANT too), HP C (must be checked before -lpthread, which
+# is present but should not be used directly; and before -mthreads,
+# because the compiler interprets this as "-mt" + "-hreads")
+# -mthreads: Mingw32/gcc, Lynx/gcc
# pthread: Linux, etcetera
# --thread-safe: KAI C++
# pthread-config: use pthread-config program (for GNU Pth library)
-case ${host_os} in
+case $host_os in
+
+ freebsd*)
+
+ # -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
+ # lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
+
+ ax_pthread_flags="-kthread lthread $ax_pthread_flags"
+ ;;
+
+ hpux*)
+
+ # From the cc(1) man page: "[-mt] Sets various -D flags to enable
+ # multi-threading and also sets -lpthread."
+
+ ax_pthread_flags="-mt -pthread pthread $ax_pthread_flags"
+ ;;
+
+ openedition*)
+
+ # IBM z/OS requires a feature-test macro to be defined in order to
+ # enable POSIX threads at all, so give the user a hint if this is
+ # not set. (We don't define these ourselves, as they can affect
+ # other portions of the system API in unpredictable ways.)
+
+ AC_EGREP_CPP([AX_PTHREAD_ZOS_MISSING],
+ [
+# if !defined(_OPEN_THREADS) && !defined(_UNIX03_THREADS)
+ AX_PTHREAD_ZOS_MISSING
+# endif
+ ],
+ [AC_MSG_WARN([IBM z/OS requires -D_OPEN_THREADS or -D_UNIX03_THREADS to enable pthreads support.])])
+ ;;
+
solaris*)
# On Solaris (at least, for some versions), libc contains stubbed
# (non-functional) versions of the pthreads routines, so link-based
- # tests will erroneously succeed. (We need to link with -pthreads/-mt/
- # -lpthread.) (The stubs are missing pthread_cleanup_push, or rather
- # a function called by this macro, so we could check for that, but
- # who knows whether they'll stub that too in a future libc.) So,
- # we'll just look for -pthreads and -lpthread first:
+ # tests will erroneously succeed. (N.B.: The stubs are missing
+ # pthread_cleanup_push, or rather a function called by this macro,
+ # so we could check for that, but who knows whether they'll stub
+ # that too in a future libc.) So we'll check first for the
+ # standard Solaris way of linking pthreads (-mt -lpthread).
+
+ ax_pthread_flags="-mt,pthread pthread $ax_pthread_flags"
+ ;;
+esac
+
+# GCC generally uses -pthread, or -pthreads on some platforms (e.g. SPARC)
- ax_pthread_flags="-pthreads pthread -mt -pthread $ax_pthread_flags"
+AS_IF([test "x$GCC" = "xyes"],
+ [ax_pthread_flags="-pthread -pthreads $ax_pthread_flags"])
+
+# The presence of a feature test macro requesting re-entrant function
+# definitions is, on some systems, a strong hint that pthreads support is
+# correctly enabled
+
+case $host_os in
+ darwin* | hpux* | linux* | osf* | solaris*)
+ ax_pthread_check_macro="_REENTRANT"
;;
- darwin*)
- ax_pthread_flags="-pthread $ax_pthread_flags"
+ aix*)
+ ax_pthread_check_macro="_THREAD_SAFE"
+ ;;
+
+ *)
+ ax_pthread_check_macro="--"
;;
esac
+AS_IF([test "x$ax_pthread_check_macro" = "x--"],
+ [ax_pthread_check_cond=0],
+ [ax_pthread_check_cond="!defined($ax_pthread_check_macro)"])
+
+# Are we compiling with Clang?
+
+AC_CACHE_CHECK([whether $CC is Clang],
+ [ax_cv_PTHREAD_CLANG],
+ [ax_cv_PTHREAD_CLANG=no
+ # Note that Autoconf sets GCC=yes for Clang as well as GCC
+ if test "x$GCC" = "xyes"; then
+ AC_EGREP_CPP([AX_PTHREAD_CC_IS_CLANG],
+ [/* Note: Clang 2.7 lacks __clang_[a-z]+__ */
+# if defined(__clang__) && defined(__llvm__)
+ AX_PTHREAD_CC_IS_CLANG
+# endif
+ ],
+ [ax_cv_PTHREAD_CLANG=yes])
+ fi
+ ])
+ax_pthread_clang="$ax_cv_PTHREAD_CLANG"
+
+ax_pthread_clang_warning=no
+
+# Clang needs special handling, because older versions handle the -pthread
+# option in a rather... idiosyncratic way
+
+if test "x$ax_pthread_clang" = "xyes"; then
+
+ # Clang takes -pthread; it has never supported any other flag
+
+ # (Note 1: This will need to be revisited if a system that Clang
+ # supports has POSIX threads in a separate library. This tends not
+ # to be the way of modern systems, but it's conceivable.)
+
+ # (Note 2: On some systems, notably Darwin, -pthread is not needed
+ # to get POSIX threads support; the API is always present and
+ # active. We could reasonably leave PTHREAD_CFLAGS empty. But
+ # -pthread does define _REENTRANT, and while the Darwin headers
+ # ignore this macro, third-party headers might not.)
+
+ PTHREAD_CFLAGS="-pthread"
+ PTHREAD_LIBS=
+
+ ax_pthread_ok=yes
+
+ # However, older versions of Clang make a point of warning the user
+ # that, in an invocation where only linking and no compilation is
+ # taking place, the -pthread option has no effect ("argument unused
+ # during compilation"). They expect -pthread to be passed in only
+ # when source code is being compiled.
+ #
+ # Problem is, this is at odds with the way Automake and most other
+ # C build frameworks function, which is that the same flags used in
+ # compilation (CFLAGS) are also used in linking. Many systems
+ # supported by AX_PTHREAD require exactly this for POSIX threads
+ # support, and in fact it is often not straightforward to specify a
+ # flag that is used only in the compilation phase and not in
+ # linking. Such a scenario is extremely rare in practice.
+ #
+ # Even though use of the -pthread flag in linking would only print
+ # a warning, this can be a nuisance for well-run software projects
+ # that build with -Werror. So if the active version of Clang has
+ # this misfeature, we search for an option to squash it.
+
+ AC_CACHE_CHECK([whether Clang needs flag to prevent "argument unused" warning when linking with -pthread],
+ [ax_cv_PTHREAD_CLANG_NO_WARN_FLAG],
+ [ax_cv_PTHREAD_CLANG_NO_WARN_FLAG=unknown
+ # Create an alternate version of $ac_link that compiles and
+ # links in two steps (.c -> .o, .o -> exe) instead of one
+ # (.c -> exe), because the warning occurs only in the second
+ # step
+ ax_pthread_save_ac_link="$ac_link"
+ ax_pthread_sed='s/conftest\.\$ac_ext/conftest.$ac_objext/g'
+ ax_pthread_link_step=`$as_echo "$ac_link" | sed "$ax_pthread_sed"`
+ ax_pthread_2step_ac_link="($ac_compile) && (echo ==== >&5) && ($ax_pthread_link_step)"
+ ax_pthread_save_CFLAGS="$CFLAGS"
+ for ax_pthread_try in '' -Qunused-arguments -Wno-unused-command-line-argument unknown; do
+ AS_IF([test "x$ax_pthread_try" = "xunknown"], [break])
+ CFLAGS="-Werror -Wunknown-warning-option $ax_pthread_try -pthread $ax_pthread_save_CFLAGS"
+ ac_link="$ax_pthread_save_ac_link"
+ AC_LINK_IFELSE([AC_LANG_SOURCE([[int main(void){return 0;}]])],
+ [ac_link="$ax_pthread_2step_ac_link"
+ AC_LINK_IFELSE([AC_LANG_SOURCE([[int main(void){return 0;}]])],
+ [break])
+ ])
+ done
+ ac_link="$ax_pthread_save_ac_link"
+ CFLAGS="$ax_pthread_save_CFLAGS"
+ AS_IF([test "x$ax_pthread_try" = "x"], [ax_pthread_try=no])
+ ax_cv_PTHREAD_CLANG_NO_WARN_FLAG="$ax_pthread_try"
+ ])
+
+ case "$ax_cv_PTHREAD_CLANG_NO_WARN_FLAG" in
+ no | unknown) ;;
+ *) PTHREAD_CFLAGS="$ax_cv_PTHREAD_CLANG_NO_WARN_FLAG $PTHREAD_CFLAGS" ;;
+ esac
+
+fi # $ax_pthread_clang = yes
-if test x"$ax_pthread_ok" = xno; then
-for flag in $ax_pthread_flags; do
+if test "x$ax_pthread_ok" = "xno"; then
+for ax_pthread_try_flag in $ax_pthread_flags; do
- case $flag in
+ case $ax_pthread_try_flag in
none)
AC_MSG_CHECKING([whether pthreads work without any flags])
;;
+ -mt,pthread)
+ AC_MSG_CHECKING([whether pthreads work with -mt -lpthread])
+ PTHREAD_CFLAGS="-mt"
+ PTHREAD_LIBS="-lpthread"
+ ;;
+
-*)
- AC_MSG_CHECKING([whether pthreads work with $flag])
- PTHREAD_CFLAGS="$flag"
+ AC_MSG_CHECKING([whether pthreads work with $ax_pthread_try_flag])
+ PTHREAD_CFLAGS="$ax_pthread_try_flag"
;;
pthread-config)
- AC_CHECK_PROG(ax_pthread_config, pthread-config, yes, no)
- if test x"$ax_pthread_config" = xno; then continue; fi
+ AC_CHECK_PROG([ax_pthread_config], [pthread-config], [yes], [no])
+ AS_IF([test "x$ax_pthread_config" = "xno"], [continue])
PTHREAD_CFLAGS="`pthread-config --cflags`"
PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`"
;;
*)
- AC_MSG_CHECKING([for the pthreads library -l$flag])
- PTHREAD_LIBS="-l$flag"
+ AC_MSG_CHECKING([for the pthreads library -l$ax_pthread_try_flag])
+ PTHREAD_LIBS="-l$ax_pthread_try_flag"
;;
esac
- save_LIBS="$LIBS"
- save_CFLAGS="$CFLAGS"
- LIBS="$PTHREAD_LIBS $LIBS"
+ ax_pthread_save_CFLAGS="$CFLAGS"
+ ax_pthread_save_LIBS="$LIBS"
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
+ LIBS="$PTHREAD_LIBS $LIBS"
# Check for various functions. We must include pthread.h,
# since some functions may be macros. (On the Sequent, we
@@ -204,7 +366,11 @@
# pthread_cleanup_push because it is one of the few pthread
# functions on Solaris that doesn't have a non-functional libc stub.
# We try pthread_create on general principles.
+
AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <pthread.h>
+# if $ax_pthread_check_cond
+# error "$ax_pthread_check_macro must be defined"
+# endif
static void routine(void *a) { a = 0; }
static void *start_routine(void *a) { return a; }],
[pthread_t th; pthread_attr_t attr;
@@ -213,16 +379,14 @@
pthread_attr_init(&attr);
pthread_cleanup_push(routine, 0);
pthread_cleanup_pop(0) /* ; */])],
- [ax_pthread_ok=yes],
- [])
+ [ax_pthread_ok=yes],
+ [])
- LIBS="$save_LIBS"
- CFLAGS="$save_CFLAGS"
+ CFLAGS="$ax_pthread_save_CFLAGS"
+ LIBS="$ax_pthread_save_LIBS"
- AC_MSG_RESULT($ax_pthread_ok)
- if test "x$ax_pthread_ok" = xyes; then
- break;
- fi
+ AC_MSG_RESULT([$ax_pthread_ok])
+ AS_IF([test "x$ax_pthread_ok" = "xyes"], [break])
PTHREAD_LIBS=""
PTHREAD_CFLAGS=""
@@ -230,70 +394,74 @@
fi
# Various other checks:
-if test "x$ax_pthread_ok" = xyes; then
- save_LIBS="$LIBS"
- LIBS="$PTHREAD_LIBS $LIBS"
- save_CFLAGS="$CFLAGS"
+if test "x$ax_pthread_ok" = "xyes"; then
+ ax_pthread_save_CFLAGS="$CFLAGS"
+ ax_pthread_save_LIBS="$LIBS"
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
+ LIBS="$PTHREAD_LIBS $LIBS"
# Detect AIX lossage: JOINABLE attribute is called UNDETACHED.
- AC_MSG_CHECKING([for joinable pthread attribute])
- attr_name=unknown
- for attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do
- AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <pthread.h>],
- [int attr = $attr; return attr /* ; */])],
- [attr_name=$attr; break],
- [])
- done
- AC_MSG_RESULT($attr_name)
- if test "$attr_name" != PTHREAD_CREATE_JOINABLE; then
- AC_DEFINE_UNQUOTED(PTHREAD_CREATE_JOINABLE, $attr_name,
- [Define to necessary symbol if this constant
- uses a non-standard name on your system.])
- fi
-
- AC_MSG_CHECKING([if more special flags are required for pthreads])
- flag=no
- case ${host_os} in
- aix* | freebsd* | darwin*) flag="-D_THREAD_SAFE";;
- osf* | hpux*) flag="-D_REENTRANT";;
- solaris*)
- if test "$GCC" = "yes"; then
- flag="-D_REENTRANT"
- else
- flag="-mt -D_REENTRANT"
- fi
- ;;
- esac
- AC_MSG_RESULT(${flag})
- if test "x$flag" != xno; then
- PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS"
- fi
+ AC_CACHE_CHECK([for joinable pthread attribute],
+ [ax_cv_PTHREAD_JOINABLE_ATTR],
+ [ax_cv_PTHREAD_JOINABLE_ATTR=unknown
+ for ax_pthread_attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do
+ AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <pthread.h>],
+ [int attr = $ax_pthread_attr; return attr /* ; */])],
+ [ax_cv_PTHREAD_JOINABLE_ATTR=$ax_pthread_attr; break],
+ [])
+ done
+ ])
+ AS_IF([test "x$ax_cv_PTHREAD_JOINABLE_ATTR" != "xunknown" && \
+ test "x$ax_cv_PTHREAD_JOINABLE_ATTR" != "xPTHREAD_CREATE_JOINABLE" && \
+ test "x$ax_pthread_joinable_attr_defined" != "xyes"],
+ [AC_DEFINE_UNQUOTED([PTHREAD_CREATE_JOINABLE],
+ [$ax_cv_PTHREAD_JOINABLE_ATTR],
+ [Define to necessary symbol if this constant
+ uses a non-standard name on your system.])
+ ax_pthread_joinable_attr_defined=yes
+ ])
+
+ AC_CACHE_CHECK([whether more special flags are required for pthreads],
+ [ax_cv_PTHREAD_SPECIAL_FLAGS],
+ [ax_cv_PTHREAD_SPECIAL_FLAGS=no
+ case $host_os in
+ solaris*)
+ ax_cv_PTHREAD_SPECIAL_FLAGS="-D_POSIX_PTHREAD_SEMANTICS"
+ ;;
+ esac
+ ])
+ AS_IF([test "x$ax_cv_PTHREAD_SPECIAL_FLAGS" != "xno" && \
+ test "x$ax_pthread_special_flags_added" != "xyes"],
+ [PTHREAD_CFLAGS="$ax_cv_PTHREAD_SPECIAL_FLAGS $PTHREAD_CFLAGS"
+ ax_pthread_special_flags_added=yes])
AC_CACHE_CHECK([for PTHREAD_PRIO_INHERIT],
- ax_cv_PTHREAD_PRIO_INHERIT, [
- AC_LINK_IFELSE([
- AC_LANG_PROGRAM([[#include <pthread.h>]], [[int i = PTHREAD_PRIO_INHERIT;]])],
- [ax_cv_PTHREAD_PRIO_INHERIT=yes],
- [ax_cv_PTHREAD_PRIO_INHERIT=no])
+ [ax_cv_PTHREAD_PRIO_INHERIT],
+ [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <pthread.h>]],
+ [[int i = PTHREAD_PRIO_INHERIT;]])],
+ [ax_cv_PTHREAD_PRIO_INHERIT=yes],
+ [ax_cv_PTHREAD_PRIO_INHERIT=no])
])
- AS_IF([test "x$ax_cv_PTHREAD_PRIO_INHERIT" = "xyes"],
- AC_DEFINE([HAVE_PTHREAD_PRIO_INHERIT], 1, [Have PTHREAD_PRIO_INHERIT.]))
+ AS_IF([test "x$ax_cv_PTHREAD_PRIO_INHERIT" = "xyes" && \
+ test "x$ax_pthread_prio_inherit_defined" != "xyes"],
+ [AC_DEFINE([HAVE_PTHREAD_PRIO_INHERIT], [1], [Have PTHREAD_PRIO_INHERIT.])
+ ax_pthread_prio_inherit_defined=yes
+ ])
- LIBS="$save_LIBS"
- CFLAGS="$save_CFLAGS"
+ CFLAGS="$ax_pthread_save_CFLAGS"
+ LIBS="$ax_pthread_save_LIBS"
# More AIX lossage: compile with *_r variant
- if test "x$GCC" != xyes; then
+ if test "x$GCC" != "xyes"; then
case $host_os in
aix*)
AS_CASE(["x/$CC"],
- [x*/c89|x*/c89_128|x*/c99|x*/c99_128|x*/cc|x*/cc128|x*/xlc|x*/xlc_v6|x*/xlc128|x*/xlc128_v6],
- [#handle absolute path differently from PATH based program lookup
- AS_CASE(["x$CC"],
- [x/*],
- [AS_IF([AS_EXECUTABLE_P([${CC}_r])],[PTHREAD_CC="${CC}_r"])],
- [AC_CHECK_PROGS([PTHREAD_CC],[${CC}_r],[$CC])])])
+ [x*/c89|x*/c89_128|x*/c99|x*/c99_128|x*/cc|x*/cc128|x*/xlc|x*/xlc_v6|x*/xlc128|x*/xlc128_v6],
+ [#handle absolute path differently from PATH based program lookup
+ AS_CASE(["x$CC"],
+ [x/*],
+ [AS_IF([AS_EXECUTABLE_P([${CC}_r])],[PTHREAD_CC="${CC}_r"])],
+ [AC_CHECK_PROGS([PTHREAD_CC],[${CC}_r],[$CC])])])
;;
esac
fi
@@ -301,13 +469,13 @@
test -n "$PTHREAD_CC" || PTHREAD_CC="$CC"
-AC_SUBST(PTHREAD_LIBS)
-AC_SUBST(PTHREAD_CFLAGS)
-AC_SUBST(PTHREAD_CC)
+AC_SUBST([PTHREAD_LIBS])
+AC_SUBST([PTHREAD_CFLAGS])
+AC_SUBST([PTHREAD_CC])
# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
-if test x"$ax_pthread_ok" = xyes; then
- ifelse([$1],,AC_DEFINE(HAVE_PTHREAD,1,[Define if you have POSIX threads libraries and header files.]),[$1])
+if test "x$ax_pthread_ok" = "xyes"; then
+ ifelse([$1],,[AC_DEFINE([HAVE_PTHREAD],[1],[Define if you have POSIX threads libraries and header files.])],[$1])
:
else
ax_pthread_ok=no
--- /m4/ax_with_curses.m4
+++ /m4/ax_with_curses.m4
@@ -1,5 +1,5 @@
# ===========================================================================
-# http://www.gnu.org/software/autoconf-archive/ax_with_curses.html
+# https://www.gnu.org/software/autoconf-archive/ax_with_curses.html
# ===========================================================================
#
# SYNOPSIS
@@ -12,7 +12,9 @@
# present, along with the associated header file. The NcursesW
# (wide-character) library is searched for first, followed by Ncurses,
# then the system-default plain Curses. The first library found is the
-# one returned.
+# one returned. Finding libraries will first be attempted by using
+# pkg-config, and should the pkg-config files not be available, will
+# fallback to combinations of known flags itself.
#
# The following options are understood: --with-ncursesw, --with-ncurses,
# --without-ncursesw, --without-ncurses. The "--with" options force the
@@ -52,23 +54,29 @@
#
# (These preprocessor symbols are discussed later in this document.)
#
-# The following output variable is defined by this macro; it is precious
-# and may be overridden on the ./configure command line:
+# The following output variables are defined by this macro; they are
+# precious and may be overridden on the ./configure command line:
#
-# CURSES_LIB - library to add to xxx_LDADD
+# CURSES_LIBS - library to add to xxx_LDADD
+# CURSES_CFLAGS - include paths to add to xxx_CPPFLAGS
#
-# The library listed in CURSES_LIB is NOT added to LIBS by default. You
-# need to add CURSES_LIB to the appropriate xxx_LDADD line in your
-# Makefile.am. For example:
-#
-# prog_LDADD = @CURSES_LIB@
-#
-# If CURSES_LIB is set on the configure command line (such as by running
-# "./configure CURSES_LIB=-lmycurses"), then the only header searched for
-# is <curses.h>. The user may use the CPPFLAGS precious variable to
-# override the standard #include search path. If the user needs to
-# specify an alternative path for a library (such as for a non-standard
-# NcurseW), the user should use the LDFLAGS variable.
+# In previous versions of this macro, the flags CURSES_LIB and
+# CURSES_CPPFLAGS were defined. These have been renamed, in keeping with
+# AX_WITH_CURSES's close bigger brother, PKG_CHECK_MODULES, which should
+# eventually supersede the use of AX_WITH_CURSES. Neither the library
+# listed in CURSES_LIBS, nor the flags in CURSES_CFLAGS are added to LIBS,
+# respectively CPPFLAGS, by default. You need to add both to the
+# appropriate xxx_LDADD/xxx_CPPFLAGS line in your Makefile.am. For
+# example:
+#
+# prog_LDADD = @CURSES_LIBS@
+# prog_CPPFLAGS = @CURSES_CFLAGS@
+#
+# If CURSES_LIBS is set on the configure command line (such as by running
+# "./configure CURSES_LIBS=-lmycurses"), then the only header searched for
+# is <curses.h>. If the user needs to specify an alternative path for a
+# library (such as for a non-standard NcurseW), the user should use the
+# LDFLAGS variable.
#
# The following shell variables may be defined by this macro:
#
@@ -88,7 +96,7 @@
#
# AX_WITH_CURSES
# if test "x$ax_cv_ncursesw" != xyes && test "x$ax_cv_ncurses" != xyes; then
-# AX_MSG_ERROR([requires either NcursesW or Ncurses library])
+# AC_MSG_ERROR([requires either NcursesW or Ncurses library])
# fi
#
# If any Curses library will do (but one must be present and must support
@@ -167,7 +175,7 @@
# Public License for more details.
#
# You should have received a copy of the GNU General Public License along
-# with this program. If not, see <http://www.gnu.org/licenses/>.
+# with this program. If not, see <https://www.gnu.org/licenses/>.
#
# As a special exception, the respective Autoconf Macro's copyright owner
# gives unlimited permission to copy, distribute and modify the configure
@@ -182,11 +190,66 @@
# modified version of the Autoconf Macro, you may extend this special
# exception to the GPL to apply to your modified version as well.
-#serial 13
+#serial 18
+
+# internal function to factorize common code that is used by both ncurses
+# and ncursesw
+AC_DEFUN([_FIND_CURSES_FLAGS], [
+ AC_MSG_CHECKING([for $1 via pkg-config])
+
+ AX_REQUIRE_DEFINED([PKG_CHECK_EXISTS])
+ _PKG_CONFIG([_ax_cv_$1_libs], [libs], [$1])
+ _PKG_CONFIG([_ax_cv_$1_cppflags], [cflags], [$1])
+
+ AS_IF([test "x$pkg_failed" = "xyes" || test "x$pkg_failed" = "xuntried"],[
+ AC_MSG_RESULT([no])
+ # No suitable .pc file found, have to find flags via fallback
+ AC_CACHE_CHECK([for $1 via fallback], [ax_cv_$1], [
+ AS_ECHO()
+ pkg_cv__ax_cv_$1_libs="-l$1"
+ pkg_cv__ax_cv_$1_cppflags="-D_GNU_SOURCE $CURSES_CFLAGS"
+ LIBS="$ax_saved_LIBS $pkg_cv__ax_cv_$1_libs"
+ CPPFLAGS="$ax_saved_CPPFLAGS $pkg_cv__ax_cv_$1_cppflags"
+
+ AC_MSG_CHECKING([for initscr() with $pkg_cv__ax_cv_$1_libs])
+ AC_LINK_IFELSE([AC_LANG_CALL([], [initscr])],
+ [
+ AC_MSG_RESULT([yes])
+ AC_MSG_CHECKING([for nodelay() with $pkg_cv__ax_cv_$1_libs])
+ AC_LINK_IFELSE([AC_LANG_CALL([], [nodelay])],[
+ ax_cv_$1=yes
+ ],[
+ AC_MSG_RESULT([no])
+ m4_if(
+ [$1],[ncursesw],[pkg_cv__ax_cv_$1_libs="$pkg_cv__ax_cv_$1_libs -ltinfow"],
+ [$1],[ncurses],[pkg_cv__ax_cv_$1_libs="$pkg_cv__ax_cv_$1_libs -ltinfo"]
+ )
+ LIBS="$ax_saved_LIBS $pkg_cv__ax_cv_$1_libs"
+
+ AC_MSG_CHECKING([for nodelay() with $pkg_cv__ax_cv_$1_libs])
+ AC_LINK_IFELSE([AC_LANG_CALL([], [nodelay])],[
+ ax_cv_$1=yes
+ ],[
+ ax_cv_$1=no
+ ])
+ ])
+ ],[
+ ax_cv_$1=no
+ ])
+ ])
+ ],[
+ AC_MSG_RESULT([yes])
+ # Found .pc file, using its information
+ LIBS="$ax_saved_LIBS $pkg_cv__ax_cv_$1_libs"
+ CPPFLAGS="$ax_saved_CPPFLAGS $pkg_cv__ax_cv_$1_cppflags"
+ ax_cv_$1=yes
+ ])
+])
AU_ALIAS([MP_WITH_CURSES], [AX_WITH_CURSES])
AC_DEFUN([AX_WITH_CURSES], [
- AC_ARG_VAR([CURSES_LIB], [linker library for Curses, e.g. -lcurses])
+ AC_ARG_VAR([CURSES_LIBS], [linker library for Curses, e.g. -lcurses])
+ AC_ARG_VAR([CURSES_CFLAGS], [preprocessor flags for Curses, e.g. -I/usr/include/ncursesw])
AC_ARG_WITH([ncurses], [AS_HELP_STRING([--with-ncurses],
[force the use of Ncurses or NcursesW])],
[], [with_ncurses=check])
@@ -195,20 +258,17 @@
[], [with_ncursesw=check])
ax_saved_LIBS=$LIBS
+ ax_saved_CPPFLAGS=$CPPFLAGS
+
AS_IF([test "x$with_ncurses" = xyes || test "x$with_ncursesw" = xyes],
[ax_with_plaincurses=no], [ax_with_plaincurses=check])
ax_cv_curses_which=no
# Test for NcursesW
+ AS_IF([test "x$CURSES_LIBS" = x && test "x$with_ncursesw" != xno], [
+ _FIND_CURSES_FLAGS([ncursesw])
- AS_IF([test "x$CURSES_LIB" = x && test "x$with_ncursesw" != xno], [
- LIBS="$ax_saved_LIBS -lncursesw"
-
- AC_CACHE_CHECK([for NcursesW wide-character library], [ax_cv_ncursesw], [
- AC_LINK_IFELSE([AC_LANG_CALL([], [initscr])],
- [ax_cv_ncursesw=yes], [ax_cv_ncursesw=no])
- ])
AS_IF([test "x$ax_cv_ncursesw" = xno && test "x$with_ncursesw" = xyes], [
AC_MSG_ERROR([--with-ncursesw specified but could not find NcursesW library])
])
@@ -216,7 +276,8 @@
AS_IF([test "x$ax_cv_ncursesw" = xyes], [
ax_cv_curses=yes
ax_cv_curses_which=ncursesw
- CURSES_LIB="-lncursesw"
+ CURSES_LIBS="$pkg_cv__ax_cv_ncursesw_libs"
+ CURSES_CFLAGS="$pkg_cv__ax_cv_ncursesw_cppflags"
AC_DEFINE([HAVE_NCURSESW], [1], [Define to 1 if the NcursesW library is present])
AC_DEFINE([HAVE_CURSES], [1], [Define to 1 if a SysV or X/Open compatible Curses library is present])
@@ -318,16 +379,13 @@
])
])
])
+ unset pkg_cv__ax_cv_ncursesw_libs
+ unset pkg_cv__ax_cv_ncursesw_cppflags
# Test for Ncurses
+ AS_IF([test "x$CURSES_LIBS" = x && test "x$with_ncurses" != xno && test "x$ax_cv_curses_which" = xno], [
+ _FIND_CURSES_FLAGS([ncurses])
- AS_IF([test "x$CURSES_LIB" = x && test "x$with_ncurses" != xno && test "x$ax_cv_curses_which" = xno], [
- LIBS="$ax_saved_LIBS -lncurses"
-
- AC_CACHE_CHECK([for Ncurses library], [ax_cv_ncurses], [
- AC_LINK_IFELSE([AC_LANG_CALL([], [initscr])],
- [ax_cv_ncurses=yes], [ax_cv_ncurses=no])
- ])
AS_IF([test "x$ax_cv_ncurses" = xno && test "x$with_ncurses" = xyes], [
AC_MSG_ERROR([--with-ncurses specified but could not find Ncurses library])
])
@@ -335,7 +393,8 @@
AS_IF([test "x$ax_cv_ncurses" = xyes], [
ax_cv_curses=yes
ax_cv_curses_which=ncurses
- CURSES_LIB="-lncurses"
+ CURSES_LIBS="$pkg_cv__ax_cv_ncurses_libs"
+ CURSES_CFLAGS="$pkg_cv__ax_cv_ncurses_cppflags"
AC_DEFINE([HAVE_NCURSES], [1], [Define to 1 if the Ncurses library is present])
AC_DEFINE([HAVE_CURSES], [1], [Define to 1 if a SysV or X/Open compatible Curses library is present])
@@ -390,12 +449,13 @@
])
])
])
+ unset pkg_cv__ax_cv_ncurses_libs
+ unset pkg_cv__ax_cv_ncurses_cppflags
- # Test for plain Curses (or if CURSES_LIB was set by user)
-
+ # Test for plain Curses (or if CURSES_LIBS was set by user)
AS_IF([test "x$with_plaincurses" != xno && test "x$ax_cv_curses_which" = xno], [
- AS_IF([test "x$CURSES_LIB" != x], [
- LIBS="$ax_saved_LIBS $CURSES_LIB"
+ AS_IF([test "x$CURSES_LIBS" != x], [
+ LIBS="$ax_saved_LIBS $CURSES_LIBS"
], [
LIBS="$ax_saved_LIBS -lcurses"
])
@@ -408,8 +468,8 @@
AS_IF([test "x$ax_cv_plaincurses" = xyes], [
ax_cv_curses=yes
ax_cv_curses_which=plaincurses
- AS_IF([test "x$CURSES_LIB" = x], [
- CURSES_LIB="-lcurses"
+ AS_IF([test "x$CURSES_LIBS" = x], [
+ CURSES_LIBS="-lcurses"
])
AC_DEFINE([HAVE_CURSES], [1], [Define to 1 if a SysV or X/Open compatible Curses library is present])
@@ -515,4 +575,8 @@
AS_IF([test "x$ax_cv_curses_obsolete" != xyes], [ax_cv_curses_obsolete=no])
LIBS=$ax_saved_LIBS
+ CPPFLAGS=$ax_saved_CPPFLAGS
+
+ unset ax_saved_LIBS
+ unset ax_saved_CPPFLAGS
])dnl
--- /test/Makefile.am
+++ /test/Makefile.am
@@ -65,7 +65,8 @@
if ENABLE_TEXT_UI
TEXT_UI_BIN=genkeystroke
genkeystroke_SOURCES = genkeystroke.c
-genkeystroke_LDADD = $(LDADD) @CURSES_LIB@
+genkeystroke_CPPFLAGS = $(AM_CPPFLAGS) @CURSES_CFLAGS@
+genkeystroke_LDADD = $(LDADD) @CURSES_LIBS@
else
TEXT_UI_BIN=
endif
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